How do i pass a string list to a sql query in python?
How to pass a python list of strings to SQL query such as Show Doing
whereas, what I want to do is:
asked Sep 12, 2019 at 15:27
3 Rather than reinventing the wheel I'd suggest looking at native solutions mature db libraries provide. psqycopg2 e.g. allows registering adapter so that handling lists (and other sequences) becomes transparent, you can just directly pass list as a query parameter. Here's an example: https://chistera.yi.org/~dato/blog/entries/2009/03/07/psycopg2_sql_in.html pymysql also provides a good set of built-in escapers including one for dealing with sequences so that you don't have to worry about manual formatting (which is error-prone) and can directly use tuple as argument in IN clause. Example:
Pretty sure many other mature libraries/frameworks provide similar functionality. answered Sep 12, 2019 at 16:27
Vovan KuznetsovVovan Kuznetsov 3511 gold badge3 silver badges9 bronze badges You can alternatively pass a tuple into your SQL query:
It's also more robust than using:
As you don't get the error...
... when passing a large number of variables into the query answered Feb 21, 2020 at 11:06
rdmolonyrdmolony 4651 gold badge6 silver badges14 bronze badges Join by
Or you can just use
answered Sep 12, 2019 at 15:29
DjaouadNMDjaouadNM 21.5k4 gold badges29 silver badges52 bronze badges 2 This may depend on the driver peculiarities, though with standard DB API it should look like:
With some drivers answered Sep 12, 2019 at 15:52
berealbereal 30.2k6 gold badges53 silver badges93 bronze badges Depending on what function you are using, ? can represent a python variable like.
answered Sep 12, 2019 at 15:35
BillyNBillyN 1752 silver badges9 bronze badges How do you pass a list of strings in SQL query in Python?How to pass a python list of strings to SQL query such as select * from table where name in (names_from_python_list) where names_from_python_list is comma separated strings from python list? Doing ','. join(name for name in name_list) gives all the names in the list as a string i.e.
How do I pass a list of values in SQL?and then use setParameterList("ids", list) passing your list. Hibernate will do all the expansion for you! Show activity on this post. All you have to do is build the comma separated list of items and insert it in the string.
How do you pass parameters in SQL query in Python?You can pass parameters/arguments to your SQL statements by programmatically creating the SQL string using Scala/Python and pass it to sqlContext. sql(string). Note the 's' in front of the first """.. Your parameters. val p1 = "('0001','0002','0003')" ... . Build the query. ... . Then you can query it.. How do I get data from Python to SQL?Python MySQL Select From. ❮ Previous Next ❯. Select all records from the "customers" table, and display the result: import mysql. connector. ... . Select only the name and address columns: import mysql.connector. mydb = mysql.connector.connect( ... . Fetch only one row: import mysql.connector. ... . ❮ Previous Next ❯. |