在 sqlite3 中写入单个表值

Question

I have a Python 2.7 project, and I'm using (and learning) sqlite3.

How do I save a variable from python to a single existing column and row in an sqlite3 database?

Answer 1

Say you have a table named "records" with the column "X", and each entry has a different "X" value, and let's say you want to change the value of column "Y". You would use this SQL query:

cursor.execute("update records set y = ? where x = ?", (y, x))

Answer 2

If you are not familiar with SQL, you could try using an ORM, which maps DB tables to python classes and objects. I am a big fan of Storm. You can find it here:

https://storm.canonical.com/