Hướng dẫn what is join query in php? - tham gia truy vấn trong php là gì?
Trong bài viết này, chúng tôi sẽ tham gia hai bảng bằng PHP và hiển thị chúng trên trang web. & NBSP; Show Giới thiệu : PHP là ngôn ngữ kịch bản phía máy chủ, được sử dụng để kết nối với cơ sở dữ liệu. Sử dụng điều này, chúng ta có thể lấy dữ liệu từ cơ sở dữ liệu bằng cách sử dụng các tập lệnh PHP. Ngôn ngữ cơ sở dữ liệu có thể được sử dụng để giao tiếp với PHP là MySQL. MySQL là ngôn ngữ truy vấn cơ sở dữ liệu được sử dụng để quản lý cơ sở dữ liệu. Yêu cầu: Máy chủ XAMPP - Máy chủ XAMPP được sử dụng để lưu trữ cơ sở dữ liệu của chúng tôi tại địa phương. & nbsp; chúng tôi sẽ truy cập dữ liệu từ máy chủ XAMPP bằng PHP. Trong bài viết này, chúng tôi đang lấy cơ sở dữ liệu chi tiết sinh viên có chứa hai bảng. Họ là Student_Address và Student_marks. Cấu trúc của bảng: table1=student_address table2=student_marks. Chúng tôi sẽ thực hiện tham gia bên trong, tham gia bên trái, tham gia bên phải trên hai bảng này. 1. Tham gia bên trong: Tham gia bên trong là một từ khóa chọn các bản ghi có các giá trị phù hợp trong cả hai bảng. Cú pháp: SELECT column 1,column 2,...column n FROM table1 INNER JOIN table2 ON table1.column_name = table2.column_name; Thí dụ : Hãy để student_address chứa những chi tiết này Và bảng student_marks bao gồm Bằng cách sử dụng SID, chúng ta có thể tham gia hai bảng này bằng cách sử dụng tham gia bên trong, vì, SID là phổ biến trong hai bảng.
SELECT * from student_address INNER JOIN student_marks on student_address.sid=student_marks.sid; Kết quả : STUDENT-ID : 1 ----- NAME : sravan kumar ----- ADDRESS : kakumanu STUDENT-ID : 2 ----- NAME : bobby ----- ADDRESS : kakumanu STUDENT-ID : 3 ----- NAME : ojaswi ----- ADDRESS : hyderabad STUDENT-ID : 4 ----- NAME : rohith ----- ADDRESS : hyderabad
SELECT * from student_marks INNER JOIN student_address on student_address.sid=student_marks.sid Kết quả : STUDENT-ID : 1 ----- SUBJECT 1 : 98 ----- SUBJECT 2 : 99 STUDENT-ID : 2 ----- SUBJECT 1 : 78 ----- SUBJECT 2 : 89 STUDENT-ID : 3 ----- SUBJECT 1 : 78 ----- SUBJECT 2 : 98 STUDENT-ID : 4 ----- SUBJECT 1 : 89 ----- SUBJECT 2 : 98 Truy vấn để hiển thị chi tiết Student_marks dựa trên tham gia bên trong. 2. Tham gia trái: Cú pháp: SELECT column1,column2,...columnn FROM table1 LEFT JOIN table2 ON table1.column_name = table2.column_name;
SELECT * from student_address LEFT JOIN student_marks on student_address.sid=student_marks.sid Kết quả : STUDENT-ID : 1 ----- NAME : sravan kumar ----- ADDRESS : kakumanu STUDENT-ID : 2 ----- NAME : bobby ----- ADDRESS : kakumanu STUDENT-ID : 3 ----- NAME : ojaswi ----- ADDRESS : hyderabad STUDENT-ID : 4 ----- NAME : rohith ----- ADDRESS : hyderabad STUDENT-ID : ----- NAME : gnanesh ----- ADDRESS : hyderabad
SELECT * from student_marks LEFT JOIN student_address on student_address.sid=student_marks.sid Kết quả : STUDENT-ID : 1 ----- SUBJECT 1 : 98 ----- SUBJECT 2 : 99 STUDENT-ID : 2 ----- SUBJECT 1 : 78 ----- SUBJECT 2 : 89 STUDENT-ID : 3 ----- SUBJECT 1 : 78 ----- SUBJECT 2 : 98 STUDENT-ID : 4 ----- SUBJECT 1 : 89 ----- SUBJECT 2 : 98 STUDENT-ID : ----- SUBJECT 1 : 89 ----- SUBJECT 2 : 79 Truy vấn để hiển thị chi tiết Student_marks dựa trên tham gia bên trong. 2. Tham gia trái: Cú pháp: SELECT * from student_address INNER JOIN student_marks on student_address.sid=student_marks.sid;0
SELECT * from student_address INNER JOIN student_marks on student_address.sid=student_marks.sid;1 Kết quả : SELECT * from student_address INNER JOIN student_marks on student_address.sid=student_marks.sid;2
SELECT * from student_address INNER JOIN student_marks on student_address.sid=student_marks.sid;3 Kết quả : SELECT * from student_address INNER JOIN student_marks on student_address.sid=student_marks.sid;4 Truy vấn để hiển thị chi tiết Student_marks dựa trên tham gia bên trong.
Steps:
Truy vấn để hiển thị tất cả bảng student_address dựa trên ID sinh viên bằng cách sử dụng & nbsp; tham gia đúng Truy vấn để hiển thị tất cả các sinh viên_mark & nbsp; bảng dựa trên id sinh viên
Tạo cơ sở dữ liệu có tên cơ sở dữ liệu và tạo bảng (student_address và student_marks)SELECT * from student_address INNER JOIN student_marks on student_address.sid=student_marks.sid;5 Chèn bản ghi vào hai bảng bằng PHP Viết SQL & NBSP; truy vấn để thực hiện tất cả các lần tham gia bằng PHP Quan sát kết quả. Bắt đầu máy chủ XAMPP Nhập trực tuyến localhost/phpmyadmin, trong trình duyệt của bạn và tạo cơ sở dữ liệu có tên là cơ sở dữ liệu, sau đó tạo hai bảng có tên student_address và student_marks Student_address & nbsp; cấu trúc bảng: Cấu trúc bảng student_marks: SELECT column1,column2,...columnn FROM table1 LEFT JOIN table2 ON table1.column_name = table2.column_name;5 Chèn các bản ghi vào bảng Student_Address bằng cách sử dụng mã chạy PHP (Data1.php) bằng cách nhập bản địa localhost/data1.php, PHP SELECT * from student_address INNER JOIN student_marks on student_address.sid=student_marks.sid;6 SELECT * from student_address INNER JOIN student_marks on student_address.sid=student_marks.sid;7 SELECT * from student_address INNER JOIN student_marks on student_address.sid=student_marks.sid;8 SELECT * from student_address INNER JOIN student_marks on student_address.sid=student_marks.sid;9 STUDENT-ID : 1 ----- NAME : sravan kumar ----- ADDRESS : kakumanu STUDENT-ID : 2 ----- NAME : bobby ----- ADDRESS : kakumanu STUDENT-ID : 3 ----- NAME : ojaswi ----- ADDRESS : hyderabad STUDENT-ID : 4 ----- NAME : rohith ----- ADDRESS : hyderabad0 SELECT * from student_address INNER JOIN student_marks on student_address.sid=student_marks.sid;7 STUDENT-ID : 1 ----- NAME : sravan kumar ----- ADDRESS : kakumanu STUDENT-ID : 2 ----- NAME : bobby ----- ADDRESS : kakumanu STUDENT-ID : 3 ----- NAME : ojaswi ----- ADDRESS : hyderabad STUDENT-ID : 4 ----- NAME : rohith ----- ADDRESS : hyderabad222 STUDENT-ID : 1 ----- NAME : sravan kumar ----- ADDRESS : kakumanu STUDENT-ID : 2 ----- NAME : bobby ----- ADDRESS : kakumanu STUDENT-ID : 3 ----- NAME : ojaswi ----- ADDRESS : hyderabad STUDENT-ID : 4 ----- NAME : rohith ----- ADDRESS : hyderabad4 SELECT * from student_address INNER JOIN student_marks on student_address.sid=student_marks.sid;7 STUDENT-ID : 1 ----- NAME : sravan kumar ----- ADDRESS : kakumanu STUDENT-ID : 2 ----- NAME : bobby ----- ADDRESS : kakumanu STUDENT-ID : 3 ----- NAME : ojaswi ----- ADDRESS : hyderabad STUDENT-ID : 4 ----- NAME : rohith ----- ADDRESS : hyderabad6 SELECT * from student_address INNER JOIN student_marks on student_address.sid=student_marks.sid;9 STUDENT-ID : 1 ----- NAME : sravan kumar ----- ADDRESS : kakumanu STUDENT-ID : 2 ----- NAME : bobby ----- ADDRESS : kakumanu STUDENT-ID : 3 ----- NAME : ojaswi ----- ADDRESS : hyderabad STUDENT-ID : 4 ----- NAME : rohith ----- ADDRESS : hyderabad8 SELECT * from student_address INNER JOIN student_marks on student_address.sid=student_marks.sid;7 SELECT * from student_marks INNER JOIN student_address on student_address.sid=student_marks.sid0 ____19 SELECT * from student_marks INNER JOIN student_address on student_address.sid=student_marks.sid2 SELECT * from student_address INNER JOIN student_marks on student_address.sid=student_marks.sid;7 SELECT * from student_marks INNER JOIN student_address on student_address.sid=student_marks.sid4 SELECT * from student_marks INNER JOIN student_address on student_address.sid=student_marks.sid5 SELECT * from student_address INNER JOIN student_marks on student_address.sid=student_marks.sid;6 SELECT * from student_marks INNER JOIN student_address on student_address.sid=student_marks.sid7____________ SELECT * from student_marks INNER JOIN student_address on student_address.sid=student_marks.sid7 STUDENT-ID : 1 ----- NAME : sravan kumar ----- ADDRESS : kakumanu STUDENT-ID : 2 ----- NAME : bobby ----- ADDRESS : kakumanu STUDENT-ID : 3 ----- NAME : ojaswi ----- ADDRESS : hyderabad STUDENT-ID : 4 ----- NAME : rohith ----- ADDRESS : hyderabad4 SELECT * from student_marks INNER JOIN student_address on student_address.sid=student_marks.sid7 STUDENT-ID : 1 ----- NAME : sravan kumar ----- ADDRESS : kakumanu STUDENT-ID : 2 ----- NAME : bobby ----- ADDRESS : kakumanu STUDENT-ID : 3 ----- NAME : ojaswi ----- ADDRESS : hyderabad STUDENT-ID : 4 ----- NAME : rohith ----- ADDRESS : hyderabad8 STUDENT-ID : 1 ----- SUBJECT 1 : 98 ----- SUBJECT 2 : 99 STUDENT-ID : 2 ----- SUBJECT 1 : 78 ----- SUBJECT 2 : 89 STUDENT-ID : 3 ----- SUBJECT 1 : 78 ----- SUBJECT 2 : 98 STUDENT-ID : 4 ----- SUBJECT 1 : 89 ----- SUBJECT 2 : 983 STUDENT-ID : 1 ----- SUBJECT 1 : 98 ----- SUBJECT 2 : 99 STUDENT-ID : 2 ----- SUBJECT 1 : 78 ----- SUBJECT 2 : 89 STUDENT-ID : 3 ----- SUBJECT 1 : 78 ----- SUBJECT 2 : 98 STUDENT-ID : 4 ----- SUBJECT 1 : 89 ----- SUBJECT 2 : 984 STUDENT-ID : 1 ----- SUBJECT 1 : 98 ----- SUBJECT 2 : 99 STUDENT-ID : 2 ----- SUBJECT 1 : 78 ----- SUBJECT 2 : 89 STUDENT-ID : 3 ----- SUBJECT 1 : 78 ----- SUBJECT 2 : 98 STUDENT-ID : 4 ----- SUBJECT 1 : 89 ----- SUBJECT 2 : 985 SELECT * from student_marks INNER JOIN student_address on student_address.sid=student_marks.sid2 STUDENT-ID : 1 ----- SUBJECT 1 : 98 ----- SUBJECT 2 : 99 STUDENT-ID : 2 ----- SUBJECT 1 : 78 ----- SUBJECT 2 : 89 STUDENT-ID : 3 ----- SUBJECT 1 : 78 ----- SUBJECT 2 : 98 STUDENT-ID : 4 ----- SUBJECT 1 : 89 ----- SUBJECT 2 : 987 STUDENT-ID : 1 ----- SUBJECT 1 : 98 ----- SUBJECT 2 : 99 STUDENT-ID : 2 ----- SUBJECT 1 : 78 ----- SUBJECT 2 : 89 STUDENT-ID : 3 ----- SUBJECT 1 : 78 ----- SUBJECT 2 : 98 STUDENT-ID : 4 ----- SUBJECT 1 : 89 ----- SUBJECT 2 : 988 STUDENT-ID : 1 ----- SUBJECT 1 : 98 ----- SUBJECT 2 : 99 STUDENT-ID : 2 ----- SUBJECT 1 : 78 ----- SUBJECT 2 : 89 STUDENT-ID : 3 ----- SUBJECT 1 : 78 ----- SUBJECT 2 : 98 STUDENT-ID : 4 ----- SUBJECT 1 : 89 ----- SUBJECT 2 : 989 STUDENT-ID : 1 ----- SUBJECT 1 : 98 ----- SUBJECT 2 : 99 STUDENT-ID : 2 ----- SUBJECT 1 : 78 ----- SUBJECT 2 : 89 STUDENT-ID : 3 ----- SUBJECT 1 : 78 ----- SUBJECT 2 : 98 STUDENT-ID : 4 ----- SUBJECT 1 : 89 ----- SUBJECT 2 : 985 SELECT column1,column2,...columnn FROM table1 LEFT JOIN table2 ON table1.column_name = table2.column_name;1 SELECT column1,column2,...columnn FROM table1 LEFT JOIN table2 ON table1.column_name = table2.column_name;2 SELECT * from student_marks INNER JOIN student_address on student_address.sid=student_marks.sid2 SELECT column1,column2,...columnn FROM table1 LEFT JOIN table2 ON table1.column_name = table2.column_name;4 SELECT column1,column2,...columnn FROM table1 LEFT JOIN table2 ON table1.column_name = table2.column_name;5 SELECT * from student_marks INNER JOIN student_address on student_address.sid=student_marks.sid2 SELECT * from student_address INNER JOIN student_marks on student_address.sid=student_marks.sid;01 SELECT * from student_address INNER JOIN student_marks on student_address.sid=student_marks.sid;02 ________ 56 & nbsp;
Tạo cơ sở dữ liệu có tên cơ sở dữ liệu và tạo bảng (student_address và student_marks)SELECT * from student_address INNER JOIN student_marks on student_address.sid=student_marks.sid;5 Chèn bản ghi vào hai bảng bằng PHP Viết SQL & NBSP; truy vấn để thực hiện tất cả các lần tham gia bằng PHP Quan sát kết quả. Bắt đầu máy chủ XAMPP Nhập trực tuyến localhost/phpmyadmin, trong trình duyệt của bạn và tạo cơ sở dữ liệu có tên là cơ sở dữ liệu, sau đó tạo hai bảng có tên student_address và student_marks Student_address & nbsp; cấu trúc bảng: Cấu trúc bảng student_marks: SELECT column1,column2,...columnn FROM table1 LEFT JOIN table2 ON table1.column_name = table2.column_name;5 Chèn các bản ghi vào bảng Student_Address bằng cách sử dụng mã chạy PHP (Data1.php) bằng cách nhập bản địa localhost/data1.php, PHP SELECT * from student_address INNER JOIN student_marks on student_address.sid=student_marks.sid;6 SELECT * from student_address INNER JOIN student_marks on student_address.sid=student_marks.sid;7 SELECT * from student_address INNER JOIN student_marks on student_address.sid=student_marks.sid;8 SELECT * from student_address INNER JOIN student_marks on student_address.sid=student_marks.sid;9 STUDENT-ID : 1 ----- NAME : sravan kumar ----- ADDRESS : kakumanu STUDENT-ID : 2 ----- NAME : bobby ----- ADDRESS : kakumanu STUDENT-ID : 3 ----- NAME : ojaswi ----- ADDRESS : hyderabad STUDENT-ID : 4 ----- NAME : rohith ----- ADDRESS : hyderabad0 SELECT * from student_address INNER JOIN student_marks on student_address.sid=student_marks.sid;7 STUDENT-ID : 1 ----- NAME : sravan kumar ----- ADDRESS : kakumanu STUDENT-ID : 2 ----- NAME : bobby ----- ADDRESS : kakumanu STUDENT-ID : 3 ----- NAME : ojaswi ----- ADDRESS : hyderabad STUDENT-ID : 4 ----- NAME : rohith ----- ADDRESS : hyderabad222 STUDENT-ID : 1 ----- NAME : sravan kumar ----- ADDRESS : kakumanu STUDENT-ID : 2 ----- NAME : bobby ----- ADDRESS : kakumanu STUDENT-ID : 3 ----- NAME : ojaswi ----- ADDRESS : hyderabad STUDENT-ID : 4 ----- NAME : rohith ----- ADDRESS : hyderabad4 SELECT * from student_address INNER JOIN student_marks on student_address.sid=student_marks.sid;7 STUDENT-ID : 1 ----- NAME : sravan kumar ----- ADDRESS : kakumanu STUDENT-ID : 2 ----- NAME : bobby ----- ADDRESS : kakumanu STUDENT-ID : 3 ----- NAME : ojaswi ----- ADDRESS : hyderabad STUDENT-ID : 4 ----- NAME : rohith ----- ADDRESS : hyderabad6 SELECT * from student_address INNER JOIN student_marks on student_address.sid=student_marks.sid;9 STUDENT-ID : 1 ----- NAME : sravan kumar ----- ADDRESS : kakumanu STUDENT-ID : 2 ----- NAME : bobby ----- ADDRESS : kakumanu STUDENT-ID : 3 ----- NAME : ojaswi ----- ADDRESS : hyderabad STUDENT-ID : 4 ----- NAME : rohith ----- ADDRESS : hyderabad8 SELECT * from student_address INNER JOIN student_marks on student_address.sid=student_marks.sid;7 SELECT * from student_marks INNER JOIN student_address on student_address.sid=student_marks.sid0 ____19 SELECT * from student_marks INNER JOIN student_address on student_address.sid=student_marks.sid2 SELECT * from student_address INNER JOIN student_marks on student_address.sid=student_marks.sid;7 SELECT * from student_marks INNER JOIN student_address on student_address.sid=student_marks.sid4 SELECT * from student_marks INNER JOIN student_address on student_address.sid=student_marks.sid5 SELECT * from student_address INNER JOIN student_marks on student_address.sid=student_marks.sid;6 SELECT * from student_marks INNER JOIN student_address on student_address.sid=student_marks.sid7____________ SELECT * from student_marks INNER JOIN student_address on student_address.sid=student_marks.sid7 STUDENT-ID : 1 ----- NAME : sravan kumar ----- ADDRESS : kakumanu STUDENT-ID : 2 ----- NAME : bobby ----- ADDRESS : kakumanu STUDENT-ID : 3 ----- NAME : ojaswi ----- ADDRESS : hyderabad STUDENT-ID : 4 ----- NAME : rohith ----- ADDRESS : hyderabad4 SELECT * from student_marks INNER JOIN student_address on student_address.sid=student_marks.sid7 STUDENT-ID : 1 ----- NAME : sravan kumar ----- ADDRESS : kakumanu STUDENT-ID : 2 ----- NAME : bobby ----- ADDRESS : kakumanu STUDENT-ID : 3 ----- NAME : ojaswi ----- ADDRESS : hyderabad STUDENT-ID : 4 ----- NAME : rohith ----- ADDRESS : hyderabad8 STUDENT-ID : 1 ----- SUBJECT 1 : 98 ----- SUBJECT 2 : 99 STUDENT-ID : 2 ----- SUBJECT 1 : 78 ----- SUBJECT 2 : 89 STUDENT-ID : 3 ----- SUBJECT 1 : 78 ----- SUBJECT 2 : 98 STUDENT-ID : 4 ----- SUBJECT 1 : 89 ----- SUBJECT 2 : 983 STUDENT-ID : 1 ----- SUBJECT 1 : 98 ----- SUBJECT 2 : 99 STUDENT-ID : 2 ----- SUBJECT 1 : 78 ----- SUBJECT 2 : 89 STUDENT-ID : 3 ----- SUBJECT 1 : 78 ----- SUBJECT 2 : 98 STUDENT-ID : 4 ----- SUBJECT 1 : 89 ----- SUBJECT 2 : 984 STUDENT-ID : 1 ----- SUBJECT 1 : 98 ----- SUBJECT 2 : 99 STUDENT-ID : 2 ----- SUBJECT 1 : 78 ----- SUBJECT 2 : 89 STUDENT-ID : 3 ----- SUBJECT 1 : 78 ----- SUBJECT 2 : 98 STUDENT-ID : 4 ----- SUBJECT 1 : 89 ----- SUBJECT 2 : 985 SELECT * from student_marks INNER JOIN student_address on student_address.sid=student_marks.sid2 STUDENT-ID : 1 ----- SUBJECT 1 : 98 ----- SUBJECT 2 : 99 STUDENT-ID : 2 ----- SUBJECT 1 : 78 ----- SUBJECT 2 : 89 STUDENT-ID : 3 ----- SUBJECT 1 : 78 ----- SUBJECT 2 : 98 STUDENT-ID : 4 ----- SUBJECT 1 : 89 ----- SUBJECT 2 : 987 STUDENT-ID : 1 ----- SUBJECT 1 : 98 ----- SUBJECT 2 : 99 STUDENT-ID : 2 ----- SUBJECT 1 : 78 ----- SUBJECT 2 : 89 STUDENT-ID : 3 ----- SUBJECT 1 : 78 ----- SUBJECT 2 : 98 STUDENT-ID : 4 ----- SUBJECT 1 : 89 ----- SUBJECT 2 : 988 STUDENT-ID : 1 ----- SUBJECT 1 : 98 ----- SUBJECT 2 : 99 STUDENT-ID : 2 ----- SUBJECT 1 : 78 ----- SUBJECT 2 : 89 STUDENT-ID : 3 ----- SUBJECT 1 : 78 ----- SUBJECT 2 : 98 STUDENT-ID : 4 ----- SUBJECT 1 : 89 ----- SUBJECT 2 : 989 STUDENT-ID : 1 ----- SUBJECT 1 : 98 ----- SUBJECT 2 : 99 STUDENT-ID : 2 ----- SUBJECT 1 : 78 ----- SUBJECT 2 : 89 STUDENT-ID : 3 ----- SUBJECT 1 : 78 ----- SUBJECT 2 : 98 STUDENT-ID : 4 ----- SUBJECT 1 : 89 ----- SUBJECT 2 : 985 SELECT column1,column2,...columnn FROM table1 LEFT JOIN table2 ON table1.column_name = table2.column_name;1 SELECT column1,column2,...columnn FROM table1 LEFT JOIN table2 ON table1.column_name = table2.column_name;2 SELECT * from student_marks INNER JOIN student_address on student_address.sid=student_marks.sid2 SELECT column1,column2,...columnn FROM table1 LEFT JOIN table2 ON table1.column_name = table2.column_name;4 SELECT column1,column2,...columnn FROM table1 LEFT JOIN table2 ON table1.column_name = table2.column_name;5 SELECT * from student_marks INNER JOIN student_address on student_address.sid=student_marks.sid2 SELECT * from student_address INNER JOIN student_marks on student_address.sid=student_marks.sid;01 SELECT * from student_address INNER JOIN student_marks on student_address.sid=student_marks.sid;02 Đầu ra: Gõ là localhost/data2.php, để xem đầu ra
Viết mã PHP để thực hiện tham gia bên trong (form.php) PHPSELECT * from student_address INNER JOIN student_marks on student_address.sid=student_marks.sid;91 SELECT * from student_address INNER JOIN student_marks on student_address.sid=student_marks.sid;92 SELECT * from student_address INNER JOIN student_marks on student_address.sid=student_marks.sid;5 SELECT * from student_address INNER JOIN student_marks on student_address.sid=student_marks.sid;6 SELECT * from student_address INNER JOIN student_marks on student_address.sid=student_marks.sid;7 SELECT * from student_address INNER JOIN student_marks on student_address.sid=student_marks.sid;8 SELECT * from student_address INNER JOIN student_marks on student_address.sid=student_marks.sid;9 STUDENT-ID : 1 ----- NAME : sravan kumar ----- ADDRESS : kakumanu STUDENT-ID : 2 ----- NAME : bobby ----- ADDRESS : kakumanu STUDENT-ID : 3 ----- NAME : ojaswi ----- ADDRESS : hyderabad STUDENT-ID : 4 ----- NAME : rohith ----- ADDRESS : hyderabad0 SELECT * from student_address INNER JOIN student_marks on student_address.sid=student_marks.sid;7 STUDENT-ID : 1 ----- NAME : sravan kumar ----- ADDRESS : kakumanu STUDENT-ID : 2 ----- NAME : bobby ----- ADDRESS : kakumanu STUDENT-ID : 3 ----- NAME : ojaswi ----- ADDRESS : hyderabad STUDENT-ID : 4 ----- NAME : rohith ----- ADDRESS : hyderabad222 STUDENT-ID : 1 ----- NAME : sravan kumar ----- ADDRESS : kakumanu STUDENT-ID : 2 ----- NAME : bobby ----- ADDRESS : kakumanu STUDENT-ID : 3 ----- NAME : ojaswi ----- ADDRESS : hyderabad STUDENT-ID : 4 ----- NAME : rohith ----- ADDRESS : hyderabad4 SELECT * from student_address INNER JOIN student_marks on student_address.sid=student_marks.sid;7 STUDENT-ID : 1 ----- NAME : sravan kumar ----- ADDRESS : kakumanu STUDENT-ID : 2 ----- NAME : bobby ----- ADDRESS : kakumanu STUDENT-ID : 3 ----- NAME : ojaswi ----- ADDRESS : hyderabad STUDENT-ID : 4 ----- NAME : rohith ----- ADDRESS : hyderabad6 SELECT * from student_address INNER JOIN student_marks on student_address.sid=student_marks.sid;9 STUDENT-ID : 1 ----- NAME : sravan kumar ----- ADDRESS : kakumanu STUDENT-ID : 2 ----- NAME : bobby ----- ADDRESS : kakumanu STUDENT-ID : 3 ----- NAME : ojaswi ----- ADDRESS : hyderabad STUDENT-ID : 4 ----- NAME : rohith ----- ADDRESS : hyderabad8 SELECT * from student_address INNER JOIN student_marks on student_address.sid=student_marks.sid;7 SELECT * from student_marks INNER JOIN student_address on student_address.sid=student_marks.sid0 ____19 SELECT * from student_marks INNER JOIN student_address on student_address.sid=student_marks.sid2 SELECT * from student_address INNER JOIN student_marks on student_address.sid=student_marks.sid;7 SELECT * from student_marks INNER JOIN student_address on student_address.sid=student_marks.sid4 SELECT * from student_marks INNER JOIN student_address on student_address.sid=student_marks.sid5 SELECT * from student_address INNER JOIN student_marks on student_address.sid=student_marks.sid;6 SELECT * from student_marks INNER JOIN student_address on student_address.sid=student_marks.sid7____________ SELECT * from student_marks INNER JOIN student_address on student_address.sid=student_marks.sid7 STUDENT-ID : 1 ----- NAME : sravan kumar ----- ADDRESS : kakumanu STUDENT-ID : 2 ----- NAME : bobby ----- ADDRESS : kakumanu STUDENT-ID : 3 ----- NAME : ojaswi ----- ADDRESS : hyderabad STUDENT-ID : 4 ----- NAME : rohith ----- ADDRESS : hyderabad4 SELECT * from student_marks INNER JOIN student_address on student_address.sid=student_marks.sid7 STUDENT-ID : 1 ----- NAME : sravan kumar ----- ADDRESS : kakumanu STUDENT-ID : 2 ----- NAME : bobby ----- ADDRESS : kakumanu STUDENT-ID : 3 ----- NAME : ojaswi ----- ADDRESS : hyderabad STUDENT-ID : 4 ----- NAME : rohith ----- ADDRESS : hyderabad8 STUDENT-ID : 1 ----- SUBJECT 1 : 98 ----- SUBJECT 2 : 99 STUDENT-ID : 2 ----- SUBJECT 1 : 78 ----- SUBJECT 2 : 89 STUDENT-ID : 3 ----- SUBJECT 1 : 78 ----- SUBJECT 2 : 98 STUDENT-ID : 4 ----- SUBJECT 1 : 89 ----- SUBJECT 2 : 983 SELECT * from student_marks LEFT JOIN student_address on student_address.sid=student_marks.sid3 STUDENT-ID : 1 ----- NAME : sravan kumar ----- ADDRESS : kakumanu STUDENT-ID : 2 ----- NAME : bobby ----- ADDRESS : kakumanu STUDENT-ID : 3 ----- NAME : ojaswi ----- ADDRESS : hyderabad STUDENT-ID : 4 ----- NAME : rohith ----- ADDRESS : hyderabad23 SELECT * from student_address INNER JOIN student_marks on student_address.sid=student_marks.sid;9 SELECT * from student_marks LEFT JOIN student_address on student_address.sid=student_marks.sid3 STUDENT-ID : 1 ----- SUBJECT 1 : 98 ----- SUBJECT 2 : 99 STUDENT-ID : 2 ----- SUBJECT 1 : 78 ----- SUBJECT 2 : 89 STUDENT-ID : 3 ----- SUBJECT 1 : 78 ----- SUBJECT 2 : 98 STUDENT-ID : 4 ----- SUBJECT 1 : 89 ----- SUBJECT 2 : 98 STUDENT-ID : ----- SUBJECT 1 : 89 ----- SUBJECT 2 : 795 SELECT * from student_address INNER JOIN student_marks on student_address.sid=student_marks.sid;9 SELECT * from student_marks LEFT JOIN student_address on student_address.sid=student_marks.sid3 STUDENT-ID : 1 ----- SUBJECT 1 : 98 ----- SUBJECT 2 : 99 STUDENT-ID : 2 ----- SUBJECT 1 : 78 ----- SUBJECT 2 : 89 STUDENT-ID : 3 ----- SUBJECT 1 : 78 ----- SUBJECT 2 : 98 STUDENT-ID : 4 ----- SUBJECT 1 : 89 ----- SUBJECT 2 : 98 STUDENT-ID : ----- SUBJECT 1 : 89 ----- SUBJECT 2 : 795 SELECT * from student_address INNER JOIN student_marks on student_address.sid=student_marks.sid;9 SELECT column1,column2,...columnn FROM table1 LEFT JOIN table2 ON table1.column_name = table2.column_name;6 SELECT * from student_address INNER JOIN student_marks on student_address.sid=student_marks.sid;7 STUDENT-ID : 1 ----- NAME : sravan kumar ----- ADDRESS : kakumanu STUDENT-ID : 2 ----- NAME : bobby ----- ADDRESS : kakumanu STUDENT-ID : 3 ----- NAME : ojaswi ----- ADDRESS : hyderabad STUDENT-ID : 4 ----- NAME : rohith ----- ADDRESS : hyderabad33 SELECT * from student_address INNER JOIN student_marks on student_address.sid=student_marks.sid;9 STUDENT-ID : 1 ----- NAME : sravan kumar ----- ADDRESS : kakumanu STUDENT-ID : 2 ----- NAME : bobby ----- ADDRESS : kakumanu STUDENT-ID : 3 ----- NAME : ojaswi ----- ADDRESS : hyderabad STUDENT-ID : 4 ----- NAME : rohith ----- ADDRESS : hyderabad35 SELECT * from student_address INNER JOIN student_marks on student_address.sid=student_marks.sid;7 SELECT * from student_marks INNER JOIN student_address on student_address.sid=student_marks.sid2 STUDENT-ID : 1 ----- NAME : sravan kumar ----- ADDRESS : kakumanu STUDENT-ID : 2 ----- NAME : bobby ----- ADDRESS : kakumanu STUDENT-ID : 3 ----- NAME : ojaswi ----- ADDRESS : hyderabad STUDENT-ID : 4 ----- NAME : rohith ----- ADDRESS : hyderabad38 SELECT column1,column2,...columnn FROM table1 LEFT JOIN table2 ON table1.column_name = table2.column_name;6 STUDENT-ID : 1 ----- SUBJECT 1 : 98 ----- SUBJECT 2 : 99 STUDENT-ID : 2 ----- SUBJECT 1 : 78 ----- SUBJECT 2 : 89 STUDENT-ID : 3 ----- SUBJECT 1 : 78 ----- SUBJECT 2 : 98 STUDENT-ID : 4 ----- SUBJECT 1 : 89 ----- SUBJECT 2 : 983 STUDENT-ID : 1 ----- NAME : sravan kumar ----- ADDRESS : kakumanu STUDENT-ID : 2 ----- NAME : bobby ----- ADDRESS : kakumanu STUDENT-ID : 3 ----- NAME : ojaswi ----- ADDRESS : hyderabad STUDENT-ID : 4 ----- NAME : rohith ----- ADDRESS : hyderabad41 STUDENT-ID : 1 ----- SUBJECT 1 : 98 ----- SUBJECT 2 : 99 STUDENT-ID : 2 ----- SUBJECT 1 : 78 ----- SUBJECT 2 : 89 STUDENT-ID : 3 ----- SUBJECT 1 : 78 ----- SUBJECT 2 : 98 STUDENT-ID : 4 ----- SUBJECT 1 : 89 ----- SUBJECT 2 : 985 STUDENT-ID : 1 ----- NAME : sravan kumar ----- ADDRESS : kakumanu STUDENT-ID : 2 ----- NAME : bobby ----- ADDRESS : kakumanu STUDENT-ID : 3 ----- NAME : ojaswi ----- ADDRESS : hyderabad STUDENT-ID : 4 ----- NAME : rohith ----- ADDRESS : hyderabad43 STUDENT-ID : 1 ----- NAME : sravan kumar ----- ADDRESS : kakumanu STUDENT-ID : 2 ----- NAME : bobby ----- ADDRESS : kakumanu STUDENT-ID : 3 ----- NAME : ojaswi ----- ADDRESS : hyderabad STUDENT-ID : 4 ----- NAME : rohith ----- ADDRESS : hyderabad44 STUDENT-ID : 1 ----- NAME : sravan kumar ----- ADDRESS : kakumanu STUDENT-ID : 2 ----- NAME : bobby ----- ADDRESS : kakumanu STUDENT-ID : 3 ----- NAME : ojaswi ----- ADDRESS : hyderabad STUDENT-ID : 4 ----- NAME : rohith ----- ADDRESS : hyderabad35 STUDENT-ID : 1 ----- NAME : sravan kumar ----- ADDRESS : kakumanu STUDENT-ID : 2 ----- NAME : bobby ----- ADDRESS : kakumanu STUDENT-ID : 3 ----- NAME : ojaswi ----- ADDRESS : hyderabad STUDENT-ID : 4 ----- NAME : rohith ----- ADDRESS : hyderabad46 Các STUDENT-ID : 1 ----- NAME : sravan kumar ----- ADDRESS : kakumanu STUDENT-ID : 2 ----- NAME : bobby ----- ADDRESS : kakumanu STUDENT-ID : 3 ----- NAME : ojaswi ----- ADDRESS : hyderabad STUDENT-ID : 4 ----- NAME : rohith ----- ADDRESS : hyderabad47 SELECT * from student_marks LEFT JOIN student_address on student_address.sid=student_marks.sid3 STUDENT-ID : 1 ----- SUBJECT 1 : 98 ----- SUBJECT 2 : 99 STUDENT-ID : 2 ----- SUBJECT 1 : 78 ----- SUBJECT 2 : 89 STUDENT-ID : 3 ----- SUBJECT 1 : 78 ----- SUBJECT 2 : 98 STUDENT-ID : 4 ----- SUBJECT 1 : 89 ----- SUBJECT 2 : 98 STUDENT-ID : ----- SUBJECT 1 : 89 ----- SUBJECT 2 : 795 SELECT * from student_address INNER JOIN student_marks on student_address.sid=student_marks.sid;9 SELECT column1,column2,...columnn FROM table1 LEFT JOIN table2 ON table1.column_name = table2.column_name;5 SELECT * from student_marks LEFT JOIN student_address on student_address.sid=student_marks.sid3 STUDENT-ID : 1 ----- SUBJECT 1 : 98 ----- SUBJECT 2 : 99 STUDENT-ID : 2 ----- SUBJECT 1 : 78 ----- SUBJECT 2 : 89 STUDENT-ID : 3 ----- SUBJECT 1 : 78 ----- SUBJECT 2 : 98 STUDENT-ID : 4 ----- SUBJECT 1 : 89 ----- SUBJECT 2 : 98 STUDENT-ID : ----- SUBJECT 1 : 89 ----- SUBJECT 2 : 795 SELECT * from student_address INNER JOIN student_marks on student_address.sid=student_marks.sid;9 SELECT column1,column2,...columnn FROM table1 LEFT JOIN table2 ON table1.column_name = table2.column_name;6 SELECT * from student_address INNER JOIN student_marks on student_address.sid=student_marks.sid;7 STUDENT-ID : 1 ----- NAME : sravan kumar ----- ADDRESS : kakumanu STUDENT-ID : 2 ----- NAME : bobby ----- ADDRESS : kakumanu STUDENT-ID : 3 ----- NAME : ojaswi ----- ADDRESS : hyderabad STUDENT-ID : 4 ----- NAME : rohith ----- ADDRESS : hyderabad33 SELECT * from student_address INNER JOIN student_marks on student_address.sid=student_marks.sid;9 SELECT * from student_marks LEFT JOIN student_address on student_address.sid=student_marks.sid3 STUDENT-ID : 1 ----- SUBJECT 1 : 98 ----- SUBJECT 2 : 99 STUDENT-ID : 2 ----- SUBJECT 1 : 78 ----- SUBJECT 2 : 89 STUDENT-ID : 3 ----- SUBJECT 1 : 78 ----- SUBJECT 2 : 98 STUDENT-ID : 4 ----- SUBJECT 1 : 89 ----- SUBJECT 2 : 98 STUDENT-ID : ----- SUBJECT 1 : 89 ----- SUBJECT 2 : 795 SELECT * from student_address INNER JOIN student_marks on student_address.sid=student_marks.sid;9 SELECT * from student_marks LEFT JOIN student_address on student_address.sid=student_marks.sid3 STUDENT-ID : 1 ----- SUBJECT 1 : 98 ----- SUBJECT 2 : 99 STUDENT-ID : 2 ----- SUBJECT 1 : 78 ----- SUBJECT 2 : 89 STUDENT-ID : 3 ----- SUBJECT 1 : 78 ----- SUBJECT 2 : 98 STUDENT-ID : 4 ----- SUBJECT 1 : 89 ----- SUBJECT 2 : 98 STUDENT-ID : ----- SUBJECT 1 : 89 ----- SUBJECT 2 : 795 SELECT * from student_address INNER JOIN student_marks on student_address.sid=student_marks.sid;9 SELECT column1,column2,...columnn FROM table1 LEFT JOIN table2 ON table1.column_name = table2.column_name;6 SELECT * from student_address INNER JOIN student_marks on student_address.sid=student_marks.sid;7 STUDENT-ID : 1 ----- NAME : sravan kumar ----- ADDRESS : kakumanu STUDENT-ID : 2 ----- NAME : bobby ----- ADDRESS : kakumanu STUDENT-ID : 3 ----- NAME : ojaswi ----- ADDRESS : hyderabad STUDENT-ID : 4 ----- NAME : rohith ----- ADDRESS : hyderabad33 SELECT * from student_address INNER JOIN student_marks on student_address.sid=student_marks.sid;9 STUDENT-ID : 1 ----- NAME : sravan kumar ----- ADDRESS : kakumanu STUDENT-ID : 2 ----- NAME : bobby ----- ADDRESS : kakumanu STUDENT-ID : 3 ----- NAME : ojaswi ----- ADDRESS : hyderabad STUDENT-ID : 4 ----- NAME : rohith ----- ADDRESS : hyderabad35 SELECT * from student_address INNER JOIN student_marks on student_address.sid=student_marks.sid;7 SELECT * from student_marks INNER JOIN student_address on student_address.sid=student_marks.sid2 STUDENT-ID : 1 ----- NAME : sravan kumar ----- ADDRESS : kakumanu STUDENT-ID : 2 ----- NAME : bobby ----- ADDRESS : kakumanu STUDENT-ID : 3 ----- NAME : ojaswi ----- ADDRESS : hyderabad STUDENT-ID : 4 ----- NAME : rohith ----- ADDRESS : hyderabad38 SELECT column1,column2,...columnn FROM table1 LEFT JOIN table2 ON table1.column_name = table2.column_name;6 STUDENT-ID : 1 ----- SUBJECT 1 : 98 ----- SUBJECT 2 : 99 STUDENT-ID : 2 ----- SUBJECT 1 : 78 ----- SUBJECT 2 : 89 STUDENT-ID : 3 ----- SUBJECT 1 : 78 ----- SUBJECT 2 : 98 STUDENT-ID : 4 ----- SUBJECT 1 : 89 ----- SUBJECT 2 : 983 STUDENT-ID : 1 ----- NAME : sravan kumar ----- ADDRESS : kakumanu STUDENT-ID : 2 ----- NAME : bobby ----- ADDRESS : kakumanu STUDENT-ID : 3 ----- NAME : ojaswi ----- ADDRESS : hyderabad STUDENT-ID : 4 ----- NAME : rohith ----- ADDRESS : hyderabad41 STUDENT-ID : 1 ----- SUBJECT 1 : 98 ----- SUBJECT 2 : 99 STUDENT-ID : 2 ----- SUBJECT 1 : 78 ----- SUBJECT 2 : 89 STUDENT-ID : 3 ----- SUBJECT 1 : 78 ----- SUBJECT 2 : 98 STUDENT-ID : 4 ----- SUBJECT 1 : 89 ----- SUBJECT 2 : 985 STUDENT-ID : 1 ----- NAME : sravan kumar ----- ADDRESS : kakumanu STUDENT-ID : 2 ----- NAME : bobby ----- ADDRESS : kakumanu STUDENT-ID : 3 ----- NAME : ojaswi ----- ADDRESS : hyderabad STUDENT-ID : 4 ----- NAME : rohith ----- ADDRESS : hyderabad43 STUDENT-ID : 1 ----- NAME : sravan kumar ----- ADDRESS : kakumanu STUDENT-ID : 2 ----- NAME : bobby ----- ADDRESS : kakumanu STUDENT-ID : 3 ----- NAME : ojaswi ----- ADDRESS : hyderabad STUDENT-ID : 4 ----- NAME : rohith ----- ADDRESS : hyderabad44 STUDENT-ID : 1 ----- NAME : sravan kumar ----- ADDRESS : kakumanu STUDENT-ID : 2 ----- NAME : bobby ----- ADDRESS : kakumanu STUDENT-ID : 3 ----- NAME : ojaswi ----- ADDRESS : hyderabad STUDENT-ID : 4 ----- NAME : rohith ----- ADDRESS : hyderabad35 STUDENT-ID : 1 ----- NAME : sravan kumar ----- ADDRESS : kakumanu STUDENT-ID : 2 ----- NAME : bobby ----- ADDRESS : kakumanu STUDENT-ID : 3 ----- NAME : ojaswi ----- ADDRESS : hyderabad STUDENT-ID : 4 ----- NAME : rohith ----- ADDRESS : hyderabad46 Các STUDENT-ID : 1 ----- NAME : sravan kumar ----- ADDRESS : kakumanu STUDENT-ID : 2 ----- NAME : bobby ----- ADDRESS : kakumanu STUDENT-ID : 3 ----- NAME : ojaswi ----- ADDRESS : hyderabad STUDENT-ID : 4 ----- NAME : rohith ----- ADDRESS : hyderabad47 SELECT * from student_marks LEFT JOIN student_address on student_address.sid=student_marks.sid3 STUDENT-ID : 1 ----- SUBJECT 1 : 98 ----- SUBJECT 2 : 99 STUDENT-ID : 2 ----- SUBJECT 1 : 78 ----- SUBJECT 2 : 89 STUDENT-ID : 3 ----- SUBJECT 1 : 78 ----- SUBJECT 2 : 98 STUDENT-ID : 4 ----- SUBJECT 1 : 89 ----- SUBJECT 2 : 98 STUDENT-ID : ----- SUBJECT 1 : 89 ----- SUBJECT 2 : 795 SELECT * from student_address INNER JOIN student_marks on student_address.sid=student_marks.sid;9 SELECT column1,column2,...columnn FROM table1 LEFT JOIN table2 ON table1.column_name = table2.column_name;5 SELECT * from student_marks INNER JOIN student_address on student_address.sid=student_marks.sid2 SELECT * from student_address INNER JOIN student_marks on student_address.sid=student_marks.sid;01 SELECT * from student_address INNER JOIN student_marks on student_address.sid=student_marks.sid;02 SELECT * from student_marks INNER JOIN student_address on student_address.sid=student_marks.sid28 SELECT * from student_marks INNER JOIN student_address on student_address.sid=student_marks.sid29 Đầu ra: SELECT * from student_marks LEFT JOIN student_address on student_address.sid=student_marks.sid3 STUDENT-ID : 1 ----- NAME : sravan kumar ----- ADDRESS : kakumanu STUDENT-ID : 2 ----- NAME : bobby ----- ADDRESS : kakumanu STUDENT-ID : 3 ----- NAME : ojaswi ----- ADDRESS : hyderabad STUDENT-ID : 4 ----- NAME : rohith ----- ADDRESS : hyderabad76 SELECT * from student_address INNER JOIN student_marks on student_address.sid=student_marks.sid;9
PHPSELECT * from student_address INNER JOIN student_marks on student_address.sid=student_marks.sid;91 SELECT * from student_address INNER JOIN student_marks on student_address.sid=student_marks.sid;92 SELECT * from student_address INNER JOIN student_marks on student_address.sid=student_marks.sid;5 SELECT * from student_address INNER JOIN student_marks on student_address.sid=student_marks.sid;6 SELECT * from student_address INNER JOIN student_marks on student_address.sid=student_marks.sid;7 SELECT * from student_address INNER JOIN student_marks on student_address.sid=student_marks.sid;8 SELECT * from student_address INNER JOIN student_marks on student_address.sid=student_marks.sid;9 STUDENT-ID : 1 ----- NAME : sravan kumar ----- ADDRESS : kakumanu STUDENT-ID : 2 ----- NAME : bobby ----- ADDRESS : kakumanu STUDENT-ID : 3 ----- NAME : ojaswi ----- ADDRESS : hyderabad STUDENT-ID : 4 ----- NAME : rohith ----- ADDRESS : hyderabad0 SELECT * from student_address INNER JOIN student_marks on student_address.sid=student_marks.sid;7 STUDENT-ID : 1 ----- NAME : sravan kumar ----- ADDRESS : kakumanu STUDENT-ID : 2 ----- NAME : bobby ----- ADDRESS : kakumanu STUDENT-ID : 3 ----- NAME : ojaswi ----- ADDRESS : hyderabad STUDENT-ID : 4 ----- NAME : rohith ----- ADDRESS : hyderabad222 STUDENT-ID : 1 ----- NAME : sravan kumar ----- ADDRESS : kakumanu STUDENT-ID : 2 ----- NAME : bobby ----- ADDRESS : kakumanu STUDENT-ID : 3 ----- NAME : ojaswi ----- ADDRESS : hyderabad STUDENT-ID : 4 ----- NAME : rohith ----- ADDRESS : hyderabad4 SELECT * from student_address INNER JOIN student_marks on student_address.sid=student_marks.sid;7 STUDENT-ID : 1 ----- NAME : sravan kumar ----- ADDRESS : kakumanu STUDENT-ID : 2 ----- NAME : bobby ----- ADDRESS : kakumanu STUDENT-ID : 3 ----- NAME : ojaswi ----- ADDRESS : hyderabad STUDENT-ID : 4 ----- NAME : rohith ----- ADDRESS : hyderabad6 SELECT * from student_address INNER JOIN student_marks on student_address.sid=student_marks.sid;9 STUDENT-ID : 1 ----- NAME : sravan kumar ----- ADDRESS : kakumanu STUDENT-ID : 2 ----- NAME : bobby ----- ADDRESS : kakumanu STUDENT-ID : 3 ----- NAME : ojaswi ----- ADDRESS : hyderabad STUDENT-ID : 4 ----- NAME : rohith ----- ADDRESS : hyderabad8 SELECT * from student_address INNER JOIN student_marks on student_address.sid=student_marks.sid;7 SELECT * from student_marks INNER JOIN student_address on student_address.sid=student_marks.sid0 ____19 SELECT * from student_marks INNER JOIN student_address on student_address.sid=student_marks.sid2 SELECT * from student_address INNER JOIN student_marks on student_address.sid=student_marks.sid;7 SELECT * from student_marks INNER JOIN student_address on student_address.sid=student_marks.sid4 SELECT * from student_marks INNER JOIN student_address on student_address.sid=student_marks.sid5 SELECT * from student_address INNER JOIN student_marks on student_address.sid=student_marks.sid;6 SELECT * from student_marks INNER JOIN student_address on student_address.sid=student_marks.sid7____________ SELECT * from student_marks INNER JOIN student_address on student_address.sid=student_marks.sid7 STUDENT-ID : 1 ----- NAME : sravan kumar ----- ADDRESS : kakumanu STUDENT-ID : 2 ----- NAME : bobby ----- ADDRESS : kakumanu STUDENT-ID : 3 ----- NAME : ojaswi ----- ADDRESS : hyderabad STUDENT-ID : 4 ----- NAME : rohith ----- ADDRESS : hyderabad4 SELECT * from student_marks INNER JOIN student_address on student_address.sid=student_marks.sid7 STUDENT-ID : 1 ----- NAME : sravan kumar ----- ADDRESS : kakumanu STUDENT-ID : 2 ----- NAME : bobby ----- ADDRESS : kakumanu STUDENT-ID : 3 ----- NAME : ojaswi ----- ADDRESS : hyderabad STUDENT-ID : 4 ----- NAME : rohith ----- ADDRESS : hyderabad8 STUDENT-ID : 1 ----- SUBJECT 1 : 98 ----- SUBJECT 2 : 99 STUDENT-ID : 2 ----- SUBJECT 1 : 78 ----- SUBJECT 2 : 89 STUDENT-ID : 3 ----- SUBJECT 1 : 78 ----- SUBJECT 2 : 98 STUDENT-ID : 4 ----- SUBJECT 1 : 89 ----- SUBJECT 2 : 983 SELECT * from student_marks LEFT JOIN student_address on student_address.sid=student_marks.sid3 STUDENT-ID : 1 ----- NAME : sravan kumar ----- ADDRESS : kakumanu STUDENT-ID : 2 ----- NAME : bobby ----- ADDRESS : kakumanu STUDENT-ID : 3 ----- NAME : ojaswi ----- ADDRESS : hyderabad STUDENT-ID : 4 ----- NAME : rohith ----- ADDRESS : hyderabad23 SELECT * from student_address INNER JOIN student_marks on student_address.sid=student_marks.sid;9 SELECT * from student_marks LEFT JOIN student_address on student_address.sid=student_marks.sid3 STUDENT-ID : 1 ----- SUBJECT 1 : 98 ----- SUBJECT 2 : 99 STUDENT-ID : 2 ----- SUBJECT 1 : 78 ----- SUBJECT 2 : 89 STUDENT-ID : 3 ----- SUBJECT 1 : 78 ----- SUBJECT 2 : 98 STUDENT-ID : 4 ----- SUBJECT 1 : 89 ----- SUBJECT 2 : 98 STUDENT-ID : ----- SUBJECT 1 : 89 ----- SUBJECT 2 : 795 SELECT * from student_address INNER JOIN student_marks on student_address.sid=student_marks.sid;9 SELECT * from student_marks LEFT JOIN student_address on student_address.sid=student_marks.sid3 STUDENT-ID : 1 ----- SUBJECT 1 : 98 ----- SUBJECT 2 : 99 STUDENT-ID : 2 ----- SUBJECT 1 : 78 ----- SUBJECT 2 : 89 STUDENT-ID : 3 ----- SUBJECT 1 : 78 ----- SUBJECT 2 : 98 STUDENT-ID : 4 ----- SUBJECT 1 : 89 ----- SUBJECT 2 : 98 STUDENT-ID : ----- SUBJECT 1 : 89 ----- SUBJECT 2 : 795 SELECT * from student_address INNER JOIN student_marks on student_address.sid=student_marks.sid;9 SELECT column1,column2,...columnn FROM table1 LEFT JOIN table2 ON table1.column_name = table2.column_name;6 SELECT * from student_address INNER JOIN student_marks on student_address.sid=student_marks.sid;7 STUDENT-ID : 1 ----- NAME : sravan kumar ----- ADDRESS : kakumanu STUDENT-ID : 2 ----- NAME : bobby ----- ADDRESS : kakumanu STUDENT-ID : 3 ----- NAME : ojaswi ----- ADDRESS : hyderabad STUDENT-ID : 4 ----- NAME : rohith ----- ADDRESS : hyderabad33 SELECT * from student_address INNER JOIN student_marks on student_address.sid=student_marks.sid;9 STUDENT-ID : 1 ----- NAME : sravan kumar ----- ADDRESS : kakumanu STUDENT-ID : 2 ----- NAME : bobby ----- ADDRESS : kakumanu STUDENT-ID : 3 ----- NAME : ojaswi ----- ADDRESS : hyderabad STUDENT-ID : 4 ----- NAME : rohith ----- ADDRESS : hyderabad35 SELECT * from student_address INNER JOIN student_marks on student_address.sid=student_marks.sid;7 SELECT * from student_marks INNER JOIN student_address on student_address.sid=student_marks.sid2 STUDENT-ID : 1 ----- NAME : sravan kumar ----- ADDRESS : kakumanu STUDENT-ID : 2 ----- NAME : bobby ----- ADDRESS : kakumanu STUDENT-ID : 3 ----- NAME : ojaswi ----- ADDRESS : hyderabad STUDENT-ID : 4 ----- NAME : rohith ----- ADDRESS : hyderabad38 SELECT column1,column2,...columnn FROM table1 LEFT JOIN table2 ON table1.column_name = table2.column_name;6 STUDENT-ID : 1 ----- SUBJECT 1 : 98 ----- SUBJECT 2 : 99 STUDENT-ID : 2 ----- SUBJECT 1 : 78 ----- SUBJECT 2 : 89 STUDENT-ID : 3 ----- SUBJECT 1 : 78 ----- SUBJECT 2 : 98 STUDENT-ID : 4 ----- SUBJECT 1 : 89 ----- SUBJECT 2 : 983 STUDENT-ID : 1 ----- NAME : sravan kumar ----- ADDRESS : kakumanu STUDENT-ID : 2 ----- NAME : bobby ----- ADDRESS : kakumanu STUDENT-ID : 3 ----- NAME : ojaswi ----- ADDRESS : hyderabad STUDENT-ID : 4 ----- NAME : rohith ----- ADDRESS : hyderabad41 STUDENT-ID : 1 ----- SUBJECT 1 : 98 ----- SUBJECT 2 : 99 STUDENT-ID : 2 ----- SUBJECT 1 : 78 ----- SUBJECT 2 : 89 STUDENT-ID : 3 ----- SUBJECT 1 : 78 ----- SUBJECT 2 : 98 STUDENT-ID : 4 ----- SUBJECT 1 : 89 ----- SUBJECT 2 : 985 STUDENT-ID : 1 ----- NAME : sravan kumar ----- ADDRESS : kakumanu STUDENT-ID : 2 ----- NAME : bobby ----- ADDRESS : kakumanu STUDENT-ID : 3 ----- NAME : ojaswi ----- ADDRESS : hyderabad STUDENT-ID : 4 ----- NAME : rohith ----- ADDRESS : hyderabad43 STUDENT-ID : 1 ----- NAME : sravan kumar ----- ADDRESS : kakumanu STUDENT-ID : 2 ----- NAME : bobby ----- ADDRESS : kakumanu STUDENT-ID : 3 ----- NAME : ojaswi ----- ADDRESS : hyderabad STUDENT-ID : 4 ----- NAME : rohith ----- ADDRESS : hyderabad44 STUDENT-ID : 1 ----- NAME : sravan kumar ----- ADDRESS : kakumanu STUDENT-ID : 2 ----- NAME : bobby ----- ADDRESS : kakumanu STUDENT-ID : 3 ----- NAME : ojaswi ----- ADDRESS : hyderabad STUDENT-ID : 4 ----- NAME : rohith ----- ADDRESS : hyderabad35 STUDENT-ID : 1 ----- NAME : sravan kumar ----- ADDRESS : kakumanu STUDENT-ID : 2 ----- NAME : bobby ----- ADDRESS : kakumanu STUDENT-ID : 3 ----- NAME : ojaswi ----- ADDRESS : hyderabad STUDENT-ID : 4 ----- NAME : rohith ----- ADDRESS : hyderabad46 Các STUDENT-ID : 1 ----- NAME : sravan kumar ----- ADDRESS : kakumanu STUDENT-ID : 2 ----- NAME : bobby ----- ADDRESS : kakumanu STUDENT-ID : 3 ----- NAME : ojaswi ----- ADDRESS : hyderabad STUDENT-ID : 4 ----- NAME : rohith ----- ADDRESS : hyderabad47 SELECT * from student_marks LEFT JOIN student_address on student_address.sid=student_marks.sid3 STUDENT-ID : 1 ----- SUBJECT 1 : 98 ----- SUBJECT 2 : 99 STUDENT-ID : 2 ----- SUBJECT 1 : 78 ----- SUBJECT 2 : 89 STUDENT-ID : 3 ----- SUBJECT 1 : 78 ----- SUBJECT 2 : 98 STUDENT-ID : 4 ----- SUBJECT 1 : 89 ----- SUBJECT 2 : 98 STUDENT-ID : ----- SUBJECT 1 : 89 ----- SUBJECT 2 : 795 SELECT * from student_address INNER JOIN student_marks on student_address.sid=student_marks.sid;9 SELECT column1,column2,...columnn FROM table1 LEFT JOIN table2 ON table1.column_name = table2.column_name;5 SELECT * from student_marks LEFT JOIN student_address on student_address.sid=student_marks.sid3 STUDENT-ID : 1 ----- SUBJECT 1 : 98 ----- SUBJECT 2 : 99 STUDENT-ID : 2 ----- SUBJECT 1 : 78 ----- SUBJECT 2 : 89 STUDENT-ID : 3 ----- SUBJECT 1 : 78 ----- SUBJECT 2 : 98 STUDENT-ID : 4 ----- SUBJECT 1 : 89 ----- SUBJECT 2 : 98 STUDENT-ID : ----- SUBJECT 1 : 89 ----- SUBJECT 2 : 795 SELECT * from student_address INNER JOIN student_marks on student_address.sid=student_marks.sid;9 SELECT column1,column2,...columnn FROM table1 LEFT JOIN table2 ON table1.column_name = table2.column_name;6 SELECT * from student_address INNER JOIN student_marks on student_address.sid=student_marks.sid;7 STUDENT-ID : 1 ----- NAME : sravan kumar ----- ADDRESS : kakumanu STUDENT-ID : 2 ----- NAME : bobby ----- ADDRESS : kakumanu STUDENT-ID : 3 ----- NAME : ojaswi ----- ADDRESS : hyderabad STUDENT-ID : 4 ----- NAME : rohith ----- ADDRESS : hyderabad33 SELECT * from student_address INNER JOIN student_marks on student_address.sid=student_marks.sid;9 SELECT * from student_marks LEFT JOIN student_address on student_address.sid=student_marks.sid3 STUDENT-ID : 1 ----- SUBJECT 1 : 98 ----- SUBJECT 2 : 99 STUDENT-ID : 2 ----- SUBJECT 1 : 78 ----- SUBJECT 2 : 89 STUDENT-ID : 3 ----- SUBJECT 1 : 78 ----- SUBJECT 2 : 98 STUDENT-ID : 4 ----- SUBJECT 1 : 89 ----- SUBJECT 2 : 98 STUDENT-ID : ----- SUBJECT 1 : 89 ----- SUBJECT 2 : 795 SELECT * from student_address INNER JOIN student_marks on student_address.sid=student_marks.sid;9 SELECT * from student_marks LEFT JOIN student_address on student_address.sid=student_marks.sid3 STUDENT-ID : 1 ----- SUBJECT 1 : 98 ----- SUBJECT 2 : 99 STUDENT-ID : 2 ----- SUBJECT 1 : 78 ----- SUBJECT 2 : 89 STUDENT-ID : 3 ----- SUBJECT 1 : 78 ----- SUBJECT 2 : 98 STUDENT-ID : 4 ----- SUBJECT 1 : 89 ----- SUBJECT 2 : 98 STUDENT-ID : ----- SUBJECT 1 : 89 ----- SUBJECT 2 : 795 SELECT * from student_address INNER JOIN student_marks on student_address.sid=student_marks.sid;9 SELECT column1,column2,...columnn FROM table1 LEFT JOIN table2 ON table1.column_name = table2.column_name;6 SELECT * from student_address INNER JOIN student_marks on student_address.sid=student_marks.sid;7 STUDENT-ID : 1 ----- NAME : sravan kumar ----- ADDRESS : kakumanu STUDENT-ID : 2 ----- NAME : bobby ----- ADDRESS : kakumanu STUDENT-ID : 3 ----- NAME : ojaswi ----- ADDRESS : hyderabad STUDENT-ID : 4 ----- NAME : rohith ----- ADDRESS : hyderabad33 SELECT * from student_address INNER JOIN student_marks on student_address.sid=student_marks.sid;9 STUDENT-ID : 1 ----- NAME : sravan kumar ----- ADDRESS : kakumanu STUDENT-ID : 2 ----- NAME : bobby ----- ADDRESS : kakumanu STUDENT-ID : 3 ----- NAME : ojaswi ----- ADDRESS : hyderabad STUDENT-ID : 4 ----- NAME : rohith ----- ADDRESS : hyderabad35 SELECT * from student_address INNER JOIN student_marks on student_address.sid=student_marks.sid;7 SELECT * from student_marks INNER JOIN student_address on student_address.sid=student_marks.sid2 STUDENT-ID : 1 ----- NAME : sravan kumar ----- ADDRESS : kakumanu STUDENT-ID : 2 ----- NAME : bobby ----- ADDRESS : kakumanu STUDENT-ID : 3 ----- NAME : ojaswi ----- ADDRESS : hyderabad STUDENT-ID : 4 ----- NAME : rohith ----- ADDRESS : hyderabad38 SELECT column1,column2,...columnn FROM table1 LEFT JOIN table2 ON table1.column_name = table2.column_name;6 STUDENT-ID : 1 ----- SUBJECT 1 : 98 ----- SUBJECT 2 : 99 STUDENT-ID : 2 ----- SUBJECT 1 : 78 ----- SUBJECT 2 : 89 STUDENT-ID : 3 ----- SUBJECT 1 : 78 ----- SUBJECT 2 : 98 STUDENT-ID : 4 ----- SUBJECT 1 : 89 ----- SUBJECT 2 : 983 STUDENT-ID : 1 ----- NAME : sravan kumar ----- ADDRESS : kakumanu STUDENT-ID : 2 ----- NAME : bobby ----- ADDRESS : kakumanu STUDENT-ID : 3 ----- NAME : ojaswi ----- ADDRESS : hyderabad STUDENT-ID : 4 ----- NAME : rohith ----- ADDRESS : hyderabad41 STUDENT-ID : 1 ----- SUBJECT 1 : 98 ----- SUBJECT 2 : 99 STUDENT-ID : 2 ----- SUBJECT 1 : 78 ----- SUBJECT 2 : 89 STUDENT-ID : 3 ----- SUBJECT 1 : 78 ----- SUBJECT 2 : 98 STUDENT-ID : 4 ----- SUBJECT 1 : 89 ----- SUBJECT 2 : 985 STUDENT-ID : 1 ----- NAME : sravan kumar ----- ADDRESS : kakumanu STUDENT-ID : 2 ----- NAME : bobby ----- ADDRESS : kakumanu STUDENT-ID : 3 ----- NAME : ojaswi ----- ADDRESS : hyderabad STUDENT-ID : 4 ----- NAME : rohith ----- ADDRESS : hyderabad43 STUDENT-ID : 1 ----- NAME : sravan kumar ----- ADDRESS : kakumanu STUDENT-ID : 2 ----- NAME : bobby ----- ADDRESS : kakumanu STUDENT-ID : 3 ----- NAME : ojaswi ----- ADDRESS : hyderabad STUDENT-ID : 4 ----- NAME : rohith ----- ADDRESS : hyderabad44 STUDENT-ID : 1 ----- NAME : sravan kumar ----- ADDRESS : kakumanu STUDENT-ID : 2 ----- NAME : bobby ----- ADDRESS : kakumanu STUDENT-ID : 3 ----- NAME : ojaswi ----- ADDRESS : hyderabad STUDENT-ID : 4 ----- NAME : rohith ----- ADDRESS : hyderabad35 STUDENT-ID : 1 ----- NAME : sravan kumar ----- ADDRESS : kakumanu STUDENT-ID : 2 ----- NAME : bobby ----- ADDRESS : kakumanu STUDENT-ID : 3 ----- NAME : ojaswi ----- ADDRESS : hyderabad STUDENT-ID : 4 ----- NAME : rohith ----- ADDRESS : hyderabad46 Các STUDENT-ID : 1 ----- NAME : sravan kumar ----- ADDRESS : kakumanu STUDENT-ID : 2 ----- NAME : bobby ----- ADDRESS : kakumanu STUDENT-ID : 3 ----- NAME : ojaswi ----- ADDRESS : hyderabad STUDENT-ID : 4 ----- NAME : rohith ----- ADDRESS : hyderabad47 SELECT * from student_marks LEFT JOIN student_address on student_address.sid=student_marks.sid3 STUDENT-ID : 1 ----- SUBJECT 1 : 98 ----- SUBJECT 2 : 99 STUDENT-ID : 2 ----- SUBJECT 1 : 78 ----- SUBJECT 2 : 89 STUDENT-ID : 3 ----- SUBJECT 1 : 78 ----- SUBJECT 2 : 98 STUDENT-ID : 4 ----- SUBJECT 1 : 89 ----- SUBJECT 2 : 98 STUDENT-ID : ----- SUBJECT 1 : 89 ----- SUBJECT 2 : 795 SELECT * from student_address INNER JOIN student_marks on student_address.sid=student_marks.sid;9 SELECT column1,column2,...columnn FROM table1 LEFT JOIN table2 ON table1.column_name = table2.column_name;5 SELECT * from student_marks INNER JOIN student_address on student_address.sid=student_marks.sid2 SELECT * from student_address INNER JOIN student_marks on student_address.sid=student_marks.sid;01 SELECT * from student_address INNER JOIN student_marks on student_address.sid=student_marks.sid;02 SELECT * from student_marks INNER JOIN student_address on student_address.sid=student_marks.sid28 SELECT * from student_marks INNER JOIN student_address on student_address.sid=student_marks.sid29 Đầu ra: SELECT * from student_marks LEFT JOIN student_address on student_address.sid=student_marks.sid3 STUDENT-ID : 1 ----- NAME : sravan kumar ----- ADDRESS : kakumanu STUDENT-ID : 2 ----- NAME : bobby ----- ADDRESS : kakumanu STUDENT-ID : 3 ----- NAME : ojaswi ----- ADDRESS : hyderabad STUDENT-ID : 4 ----- NAME : rohith ----- ADDRESS : hyderabad76 SELECT * from student_address INNER JOIN student_marks on student_address.sid=student_marks.sid;9
PHPSELECT * from student_address INNER JOIN student_marks on student_address.sid=student_marks.sid;91 SELECT * from student_address INNER JOIN student_marks on student_address.sid=student_marks.sid;92 SELECT * from student_address INNER JOIN student_marks on student_address.sid=student_marks.sid;5 SELECT * from student_address INNER JOIN student_marks on student_address.sid=student_marks.sid;6 SELECT * from student_address INNER JOIN student_marks on student_address.sid=student_marks.sid;7 SELECT * from student_address INNER JOIN student_marks on student_address.sid=student_marks.sid;8 SELECT * from student_address INNER JOIN student_marks on student_address.sid=student_marks.sid;9 STUDENT-ID : 1 ----- NAME : sravan kumar ----- ADDRESS : kakumanu STUDENT-ID : 2 ----- NAME : bobby ----- ADDRESS : kakumanu STUDENT-ID : 3 ----- NAME : ojaswi ----- ADDRESS : hyderabad STUDENT-ID : 4 ----- NAME : rohith ----- ADDRESS : hyderabad0 SELECT * from student_address INNER JOIN student_marks on student_address.sid=student_marks.sid;7 STUDENT-ID : 1 ----- NAME : sravan kumar ----- ADDRESS : kakumanu STUDENT-ID : 2 ----- NAME : bobby ----- ADDRESS : kakumanu STUDENT-ID : 3 ----- NAME : ojaswi ----- ADDRESS : hyderabad STUDENT-ID : 4 ----- NAME : rohith ----- ADDRESS : hyderabad222 STUDENT-ID : 1 ----- NAME : sravan kumar ----- ADDRESS : kakumanu STUDENT-ID : 2 ----- NAME : bobby ----- ADDRESS : kakumanu STUDENT-ID : 3 ----- NAME : ojaswi ----- ADDRESS : hyderabad STUDENT-ID : 4 ----- NAME : rohith ----- ADDRESS : hyderabad4 SELECT * from student_address INNER JOIN student_marks on student_address.sid=student_marks.sid;7 STUDENT-ID : 1 ----- NAME : sravan kumar ----- ADDRESS : kakumanu STUDENT-ID : 2 ----- NAME : bobby ----- ADDRESS : kakumanu STUDENT-ID : 3 ----- NAME : ojaswi ----- ADDRESS : hyderabad STUDENT-ID : 4 ----- NAME : rohith ----- ADDRESS : hyderabad6 SELECT * from student_address INNER JOIN student_marks on student_address.sid=student_marks.sid;9 STUDENT-ID : 1 ----- NAME : sravan kumar ----- ADDRESS : kakumanu STUDENT-ID : 2 ----- NAME : bobby ----- ADDRESS : kakumanu STUDENT-ID : 3 ----- NAME : ojaswi ----- ADDRESS : hyderabad STUDENT-ID : 4 ----- NAME : rohith ----- ADDRESS : hyderabad8 SELECT * from student_address INNER JOIN student_marks on student_address.sid=student_marks.sid;7 SELECT * from student_marks INNER JOIN student_address on student_address.sid=student_marks.sid0 ____19 SELECT * from student_marks INNER JOIN student_address on student_address.sid=student_marks.sid2 SELECT * from student_address INNER JOIN student_marks on student_address.sid=student_marks.sid;7 SELECT * from student_marks INNER JOIN student_address on student_address.sid=student_marks.sid4 SELECT * from student_marks INNER JOIN student_address on student_address.sid=student_marks.sid5 SELECT * from student_address INNER JOIN student_marks on student_address.sid=student_marks.sid;6 SELECT * from student_marks INNER JOIN student_address on student_address.sid=student_marks.sid7____________ SELECT * from student_marks INNER JOIN student_address on student_address.sid=student_marks.sid7 STUDENT-ID : 1 ----- NAME : sravan kumar ----- ADDRESS : kakumanu STUDENT-ID : 2 ----- NAME : bobby ----- ADDRESS : kakumanu STUDENT-ID : 3 ----- NAME : ojaswi ----- ADDRESS : hyderabad STUDENT-ID : 4 ----- NAME : rohith ----- ADDRESS : hyderabad4 SELECT * from student_marks INNER JOIN student_address on student_address.sid=student_marks.sid7 STUDENT-ID : 1 ----- NAME : sravan kumar ----- ADDRESS : kakumanu STUDENT-ID : 2 ----- NAME : bobby ----- ADDRESS : kakumanu STUDENT-ID : 3 ----- NAME : ojaswi ----- ADDRESS : hyderabad STUDENT-ID : 4 ----- NAME : rohith ----- ADDRESS : hyderabad8 STUDENT-ID : 1 ----- SUBJECT 1 : 98 ----- SUBJECT 2 : 99 STUDENT-ID : 2 ----- SUBJECT 1 : 78 ----- SUBJECT 2 : 89 STUDENT-ID : 3 ----- SUBJECT 1 : 78 ----- SUBJECT 2 : 98 STUDENT-ID : 4 ----- SUBJECT 1 : 89 ----- SUBJECT 2 : 983 SELECT * from student_marks LEFT JOIN student_address on student_address.sid=student_marks.sid3 STUDENT-ID : 1 ----- NAME : sravan kumar ----- ADDRESS : kakumanu STUDENT-ID : 2 ----- NAME : bobby ----- ADDRESS : kakumanu STUDENT-ID : 3 ----- NAME : ojaswi ----- ADDRESS : hyderabad STUDENT-ID : 4 ----- NAME : rohith ----- ADDRESS : hyderabad23 SELECT * from student_address INNER JOIN student_marks on student_address.sid=student_marks.sid;9 SELECT * from student_marks LEFT JOIN student_address on student_address.sid=student_marks.sid3 STUDENT-ID : 1 ----- SUBJECT 1 : 98 ----- SUBJECT 2 : 99 STUDENT-ID : 2 ----- SUBJECT 1 : 78 ----- SUBJECT 2 : 89 STUDENT-ID : 3 ----- SUBJECT 1 : 78 ----- SUBJECT 2 : 98 STUDENT-ID : 4 ----- SUBJECT 1 : 89 ----- SUBJECT 2 : 98 STUDENT-ID : ----- SUBJECT 1 : 89 ----- SUBJECT 2 : 795 SELECT * from student_address INNER JOIN student_marks on student_address.sid=student_marks.sid;9 SELECT * from student_marks LEFT JOIN student_address on student_address.sid=student_marks.sid3 STUDENT-ID : 1 ----- SUBJECT 1 : 98 ----- SUBJECT 2 : 99 STUDENT-ID : 2 ----- SUBJECT 1 : 78 ----- SUBJECT 2 : 89 STUDENT-ID : 3 ----- SUBJECT 1 : 78 ----- SUBJECT 2 : 98 STUDENT-ID : 4 ----- SUBJECT 1 : 89 ----- SUBJECT 2 : 98 STUDENT-ID : ----- SUBJECT 1 : 89 ----- SUBJECT 2 : 795 SELECT * from student_address INNER JOIN student_marks on student_address.sid=student_marks.sid;9 SELECT column1,column2,...columnn FROM table1 LEFT JOIN table2 ON table1.column_name = table2.column_name;6 SELECT * from student_address INNER JOIN student_marks on student_address.sid=student_marks.sid;7 STUDENT-ID : 1 ----- NAME : sravan kumar ----- ADDRESS : kakumanu STUDENT-ID : 2 ----- NAME : bobby ----- ADDRESS : kakumanu STUDENT-ID : 3 ----- NAME : ojaswi ----- ADDRESS : hyderabad STUDENT-ID : 4 ----- NAME : rohith ----- ADDRESS : hyderabad33 SELECT * from student_address INNER JOIN student_marks on student_address.sid=student_marks.sid;9 STUDENT-ID : 1 ----- NAME : sravan kumar ----- ADDRESS : kakumanu STUDENT-ID : 2 ----- NAME : bobby ----- ADDRESS : kakumanu STUDENT-ID : 3 ----- NAME : ojaswi ----- ADDRESS : hyderabad STUDENT-ID : 4 ----- NAME : rohith ----- ADDRESS : hyderabad35 SELECT * from student_address INNER JOIN student_marks on student_address.sid=student_marks.sid;7 SELECT * from student_marks INNER JOIN student_address on student_address.sid=student_marks.sid2 STUDENT-ID : 1 ----- NAME : sravan kumar ----- ADDRESS : kakumanu STUDENT-ID : 2 ----- NAME : bobby ----- ADDRESS : kakumanu STUDENT-ID : 3 ----- NAME : ojaswi ----- ADDRESS : hyderabad STUDENT-ID : 4 ----- NAME : rohith ----- ADDRESS : hyderabad38 SELECT column1,column2,...columnn FROM table1 LEFT JOIN table2 ON table1.column_name = table2.column_name;6 STUDENT-ID : 1 ----- SUBJECT 1 : 98 ----- SUBJECT 2 : 99 STUDENT-ID : 2 ----- SUBJECT 1 : 78 ----- SUBJECT 2 : 89 STUDENT-ID : 3 ----- SUBJECT 1 : 78 ----- SUBJECT 2 : 98 STUDENT-ID : 4 ----- SUBJECT 1 : 89 ----- SUBJECT 2 : 983 STUDENT-ID : 1 ----- NAME : sravan kumar ----- ADDRESS : kakumanu STUDENT-ID : 2 ----- NAME : bobby ----- ADDRESS : kakumanu STUDENT-ID : 3 ----- NAME : ojaswi ----- ADDRESS : hyderabad STUDENT-ID : 4 ----- NAME : rohith ----- ADDRESS : hyderabad41 STUDENT-ID : 1 ----- SUBJECT 1 : 98 ----- SUBJECT 2 : 99 STUDENT-ID : 2 ----- SUBJECT 1 : 78 ----- SUBJECT 2 : 89 STUDENT-ID : 3 ----- SUBJECT 1 : 78 ----- SUBJECT 2 : 98 STUDENT-ID : 4 ----- SUBJECT 1 : 89 ----- SUBJECT 2 : 985 STUDENT-ID : 1 ----- NAME : sravan kumar ----- ADDRESS : kakumanu STUDENT-ID : 2 ----- NAME : bobby ----- ADDRESS : kakumanu STUDENT-ID : 3 ----- NAME : ojaswi ----- ADDRESS : hyderabad STUDENT-ID : 4 ----- NAME : rohith ----- ADDRESS : hyderabad43 STUDENT-ID : 1 ----- NAME : sravan kumar ----- ADDRESS : kakumanu STUDENT-ID : 2 ----- NAME : bobby ----- ADDRESS : kakumanu STUDENT-ID : 3 ----- NAME : ojaswi ----- ADDRESS : hyderabad STUDENT-ID : 4 ----- NAME : rohith ----- ADDRESS : hyderabad44 STUDENT-ID : 1 ----- NAME : sravan kumar ----- ADDRESS : kakumanu STUDENT-ID : 2 ----- NAME : bobby ----- ADDRESS : kakumanu STUDENT-ID : 3 ----- NAME : ojaswi ----- ADDRESS : hyderabad STUDENT-ID : 4 ----- NAME : rohith ----- ADDRESS : hyderabad35 STUDENT-ID : 1 ----- NAME : sravan kumar ----- ADDRESS : kakumanu STUDENT-ID : 2 ----- NAME : bobby ----- ADDRESS : kakumanu STUDENT-ID : 3 ----- NAME : ojaswi ----- ADDRESS : hyderabad STUDENT-ID : 4 ----- NAME : rohith ----- ADDRESS : hyderabad46 Các STUDENT-ID : 1 ----- NAME : sravan kumar ----- ADDRESS : kakumanu STUDENT-ID : 2 ----- NAME : bobby ----- ADDRESS : kakumanu STUDENT-ID : 3 ----- NAME : ojaswi ----- ADDRESS : hyderabad STUDENT-ID : 4 ----- NAME : rohith ----- ADDRESS : hyderabad47 SELECT * from student_marks LEFT JOIN student_address on student_address.sid=student_marks.sid3 STUDENT-ID : 1 ----- SUBJECT 1 : 98 ----- SUBJECT 2 : 99 STUDENT-ID : 2 ----- SUBJECT 1 : 78 ----- SUBJECT 2 : 89 STUDENT-ID : 3 ----- SUBJECT 1 : 78 ----- SUBJECT 2 : 98 STUDENT-ID : 4 ----- SUBJECT 1 : 89 ----- SUBJECT 2 : 98 STUDENT-ID : ----- SUBJECT 1 : 89 ----- SUBJECT 2 : 795 SELECT * from student_address INNER JOIN student_marks on student_address.sid=student_marks.sid;9 SELECT column1,column2,...columnn FROM table1 LEFT JOIN table2 ON table1.column_name = table2.column_name;5 SELECT * from student_marks LEFT JOIN student_address on student_address.sid=student_marks.sid3 STUDENT-ID : 1 ----- SUBJECT 1 : 98 ----- SUBJECT 2 : 99 STUDENT-ID : 2 ----- SUBJECT 1 : 78 ----- SUBJECT 2 : 89 STUDENT-ID : 3 ----- SUBJECT 1 : 78 ----- SUBJECT 2 : 98 STUDENT-ID : 4 ----- SUBJECT 1 : 89 ----- SUBJECT 2 : 98 STUDENT-ID : ----- SUBJECT 1 : 89 ----- SUBJECT 2 : 795 SELECT * from student_address INNER JOIN student_marks on student_address.sid=student_marks.sid;9 SELECT column1,column2,...columnn FROM table1 LEFT JOIN table2 ON table1.column_name = table2.column_name;6 SELECT * from student_address INNER JOIN student_marks on student_address.sid=student_marks.sid;7 STUDENT-ID : 1 ----- NAME : sravan kumar ----- ADDRESS : kakumanu STUDENT-ID : 2 ----- NAME : bobby ----- ADDRESS : kakumanu STUDENT-ID : 3 ----- NAME : ojaswi ----- ADDRESS : hyderabad STUDENT-ID : 4 ----- NAME : rohith ----- ADDRESS : hyderabad33 SELECT * from student_address INNER JOIN student_marks on student_address.sid=student_marks.sid;9 SELECT * from student_marks LEFT JOIN student_address on student_address.sid=student_marks.sid3 STUDENT-ID : 1 ----- SUBJECT 1 : 98 ----- SUBJECT 2 : 99 STUDENT-ID : 2 ----- SUBJECT 1 : 78 ----- SUBJECT 2 : 89 STUDENT-ID : 3 ----- SUBJECT 1 : 78 ----- SUBJECT 2 : 98 STUDENT-ID : 4 ----- SUBJECT 1 : 89 ----- SUBJECT 2 : 98 STUDENT-ID : ----- SUBJECT 1 : 89 ----- SUBJECT 2 : 795 SELECT * from student_address INNER JOIN student_marks on student_address.sid=student_marks.sid;9 SELECT * from student_marks LEFT JOIN student_address on student_address.sid=student_marks.sid3 STUDENT-ID : 1 ----- SUBJECT 1 : 98 ----- SUBJECT 2 : 99 STUDENT-ID : 2 ----- SUBJECT 1 : 78 ----- SUBJECT 2 : 89 STUDENT-ID : 3 ----- SUBJECT 1 : 78 ----- SUBJECT 2 : 98 STUDENT-ID : 4 ----- SUBJECT 1 : 89 ----- SUBJECT 2 : 98 STUDENT-ID : ----- SUBJECT 1 : 89 ----- SUBJECT 2 : 795 SELECT * from student_address INNER JOIN student_marks on student_address.sid=student_marks.sid;9 SELECT column1,column2,...columnn FROM table1 LEFT JOIN table2 ON table1.column_name = table2.column_name;6 SELECT * from student_address INNER JOIN student_marks on student_address.sid=student_marks.sid;7 STUDENT-ID : 1 ----- NAME : sravan kumar ----- ADDRESS : kakumanu STUDENT-ID : 2 ----- NAME : bobby ----- ADDRESS : kakumanu STUDENT-ID : 3 ----- NAME : ojaswi ----- ADDRESS : hyderabad STUDENT-ID : 4 ----- NAME : rohith ----- ADDRESS : hyderabad33 SELECT * from student_address INNER JOIN student_marks on student_address.sid=student_marks.sid;9 STUDENT-ID : 1 ----- NAME : sravan kumar ----- ADDRESS : kakumanu STUDENT-ID : 2 ----- NAME : bobby ----- ADDRESS : kakumanu STUDENT-ID : 3 ----- NAME : ojaswi ----- ADDRESS : hyderabad STUDENT-ID : 4 ----- NAME : rohith ----- ADDRESS : hyderabad35 SELECT * from student_address INNER JOIN student_marks on student_address.sid=student_marks.sid;7 SELECT * from student_marks INNER JOIN student_address on student_address.sid=student_marks.sid2 STUDENT-ID : 1 ----- NAME : sravan kumar ----- ADDRESS : kakumanu STUDENT-ID : 2 ----- NAME : bobby ----- ADDRESS : kakumanu STUDENT-ID : 3 ----- NAME : ojaswi ----- ADDRESS : hyderabad STUDENT-ID : 4 ----- NAME : rohith ----- ADDRESS : hyderabad38 SELECT column1,column2,...columnn FROM table1 LEFT JOIN table2 ON table1.column_name = table2.column_name;6 STUDENT-ID : 1 ----- SUBJECT 1 : 98 ----- SUBJECT 2 : 99 STUDENT-ID : 2 ----- SUBJECT 1 : 78 ----- SUBJECT 2 : 89 STUDENT-ID : 3 ----- SUBJECT 1 : 78 ----- SUBJECT 2 : 98 STUDENT-ID : 4 ----- SUBJECT 1 : 89 ----- SUBJECT 2 : 983 STUDENT-ID : 1 ----- NAME : sravan kumar ----- ADDRESS : kakumanu STUDENT-ID : 2 ----- NAME : bobby ----- ADDRESS : kakumanu STUDENT-ID : 3 ----- NAME : ojaswi ----- ADDRESS : hyderabad STUDENT-ID : 4 ----- NAME : rohith ----- ADDRESS : hyderabad41 STUDENT-ID : 1 ----- SUBJECT 1 : 98 ----- SUBJECT 2 : 99 STUDENT-ID : 2 ----- SUBJECT 1 : 78 ----- SUBJECT 2 : 89 STUDENT-ID : 3 ----- SUBJECT 1 : 78 ----- SUBJECT 2 : 98 STUDENT-ID : 4 ----- SUBJECT 1 : 89 ----- SUBJECT 2 : 985 STUDENT-ID : 1 ----- NAME : sravan kumar ----- ADDRESS : kakumanu STUDENT-ID : 2 ----- NAME : bobby ----- ADDRESS : kakumanu STUDENT-ID : 3 ----- NAME : ojaswi ----- ADDRESS : hyderabad STUDENT-ID : 4 ----- NAME : rohith ----- ADDRESS : hyderabad43 STUDENT-ID : 1 ----- NAME : sravan kumar ----- ADDRESS : kakumanu STUDENT-ID : 2 ----- NAME : bobby ----- ADDRESS : kakumanu STUDENT-ID : 3 ----- NAME : ojaswi ----- ADDRESS : hyderabad STUDENT-ID : 4 ----- NAME : rohith ----- ADDRESS : hyderabad44 STUDENT-ID : 1 ----- NAME : sravan kumar ----- ADDRESS : kakumanu STUDENT-ID : 2 ----- NAME : bobby ----- ADDRESS : kakumanu STUDENT-ID : 3 ----- NAME : ojaswi ----- ADDRESS : hyderabad STUDENT-ID : 4 ----- NAME : rohith ----- ADDRESS : hyderabad35 STUDENT-ID : 1 ----- NAME : sravan kumar ----- ADDRESS : kakumanu STUDENT-ID : 2 ----- NAME : bobby ----- ADDRESS : kakumanu STUDENT-ID : 3 ----- NAME : ojaswi ----- ADDRESS : hyderabad STUDENT-ID : 4 ----- NAME : rohith ----- ADDRESS : hyderabad46 Các STUDENT-ID : 1 ----- NAME : sravan kumar ----- ADDRESS : kakumanu STUDENT-ID : 2 ----- NAME : bobby ----- ADDRESS : kakumanu STUDENT-ID : 3 ----- NAME : ojaswi ----- ADDRESS : hyderabad STUDENT-ID : 4 ----- NAME : rohith ----- ADDRESS : hyderabad47 SELECT * from student_marks LEFT JOIN student_address on student_address.sid=student_marks.sid3 STUDENT-ID : 1 ----- SUBJECT 1 : 98 ----- SUBJECT 2 : 99 STUDENT-ID : 2 ----- SUBJECT 1 : 78 ----- SUBJECT 2 : 89 STUDENT-ID : 3 ----- SUBJECT 1 : 78 ----- SUBJECT 2 : 98 STUDENT-ID : 4 ----- SUBJECT 1 : 89 ----- SUBJECT 2 : 98 STUDENT-ID : ----- SUBJECT 1 : 89 ----- SUBJECT 2 : 795 SELECT * from student_address INNER JOIN student_marks on student_address.sid=student_marks.sid;9 SELECT column1,column2,...columnn FROM table1 LEFT JOIN table2 ON table1.column_name = table2.column_name;5 SELECT * from student_marks INNER JOIN student_address on student_address.sid=student_marks.sid2 SELECT * from student_address INNER JOIN student_marks on student_address.sid=student_marks.sid;01 SELECT * from student_address INNER JOIN student_marks on student_address.sid=student_marks.sid;02 SELECT * from student_marks INNER JOIN student_address on student_address.sid=student_marks.sid28 SELECT * from student_marks INNER JOIN student_address on student_address.sid=student_marks.sid29 Đầu ra: Loại & nbsp; localhost/form2.php trong trình duyệt Truy vấn tham gia là gì?Tham gia là một mệnh đề SQL được sử dụng để truy vấn và truy cập dữ liệu từ nhiều bảng, dựa trên các mối quan hệ logic giữa các bảng đó. Nói cách khác, tham gia chỉ ra cách SQL Server nên sử dụng dữ liệu từ một bảng để chọn các hàng từ bảng khác.an SQL clause used to query and access data from multiple tables, based on logical relationships between those tables. In other words, JOINS indicate how SQL Server should use data from one table to select the rows from another table.
Tại sao chúng tôi sử dụng Truy vấn tham gia?Một mệnh đề tham gia được sử dụng để kết hợp các hàng từ hai hoặc nhiều bảng, dựa trên một cột liên quan giữa chúng.Lưu ý rằng cột "customerID" trong bảng "Đơn hàng" đề cập đến "Ứng dụng khách hàng" trong bảng "Khách hàng".Mối quan hệ giữa hai bảng trên là cột "customerID".to combine rows from two or more tables, based on a related column between them. Notice that the "CustomerID" column in the "Orders" table refers to the "CustomerID" in the "Customers" table. The relationship between the two tables above is the "CustomerID" column.
Tham gia với ví dụ là gì?Tham gia có nghĩa là gì?Tham gia là một thao tác SQL được thực hiện để thiết lập kết nối giữa hai hoặc nhiều bảng cơ sở dữ liệu dựa trên các cột phù hợp, do đó tạo ra mối quan hệ giữa các bảng.Hầu hết các truy vấn phức tạp trong hệ thống quản lý cơ sở dữ liệu SQL đều liên quan đến các lệnh tham gia.Có nhiều loại tham gia khác nhau.an SQL operation performed to establish a connection between two or more database tables based on matching columns, thereby creating a relationship between the tables. Most complex queries in an SQL database management system involve join commands. There are different types of joins.
Tham gia và loại là gì?Câu lệnh tham gia SQL được sử dụng để kết hợp dữ liệu hoặc hàng từ hai hoặc nhiều bảng dựa trên một trường chung giữa chúng.Các loại tham gia khác nhau như sau: Tham gia bên trong.CHỖ NỐI BÊN TRÁI.Đúng vậy tham gia. |