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pycharm python sqlite tkinter

create a table if not exist in sqlite3 python using variable

发布于 2020-11-28 17:16:31

I am trying to create a new table in sqlite3 database for each name I get from my entry widget in tkinter i don't know how to do it here username is variable for entry widget get

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AADITYA JAIN
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Barmar 2020-11-29 01:19:34

Two problems:

  1. The CREATE TABLE syntax doesn't have a VALUES clause. You just put the table name there.
  2. Placeholders can only be used where an expression is allowed, they can't be used to substitute table and column names.

You have to use string formatting.

cursr.execute(f"""CREATE TABLE IF NOT EXISTS {username} (
    site_name TEXT,
    user_id TEXT,
    user_password TEXT)""")

As an aside, creating a table for each user is probably a poor design. Dynamic data should be in table data, not table and column names. Why not just have a single table user_sites like this:

CREATE TABLE user_sites (
    username TEXT,
    site_name TEXT,
    user_id TEXT,
    user_password TEXT)
AADITYA JAIN 2020-11-28 17:33:03

actually i am creating password storage app where u save the user name ,table gets created and when you log in using that name it opens that table data for you

Barmar 2020-11-28 17:36:30

It could just select all the records in the table WHERE username = ?

AADITYA JAIN 2020-11-28 17:38:37

i am not getting exe file in dist folder after converting main.py into exe using pyinstaller

Barmar 2020-11-28 17:39:33

Sorry, I don't know anything about pyinstaller.

AADITYA JAIN 2020-11-28 17:40:34

ok thanks for solving upper one problem

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