Modifying Data

The following code examples show how to use data modification statements.

Procedure for Updates

You can use execute method to execute data modification statements. This will update the cursor's rowcount property with the number of affected rows.

Note that you must commit the connection after performing the modification, or your changes may be lost.

To insert updates:

cursor.execute("INSERT INTO Contact (Name) VALUES ('John')")
cnxn.commit()
affected = cursor.rowcount

To retrieve updates:

cursor.execute("UPDATE Contact SET Name = 'John' WHERE Country = 'U.S.A.'")
cnxn.commit()
affected = cursor.rowcount

To delete updates:

cursor.execute("DELETE FROM Contact WHERE Id = '1'")
cnxn.commit()
affected = cursor.rowcount