![]() Note that lastrowid returns None when you insert more than one row at a time with executemany: cursor. ![]() It can be applied to a field when creating a table. The AUTOINCREMENT keyword can be used with INTEGER PRIMARY KEY field only. ![]() In SQLite, a column with type INTEGER PRIMARY KEY is an alias for the ROWID (except in WITHOUT ROWID tables) which is always a 64-bit signed integer. specified table name: specified table name means the actual table name that we need to create. The SQLite AUTOINCREMENT is a keyword used for auto incrementing a value of a field in the table. Summary The AUTOINCREMENT keyword imposes extra CPU, memory, disk space, and disk I/O overhead and should be avoided if not strictly needed. I looked around and saw AUTOINCREMENT on this page but that did not work either. I get a sqlite error with the syntax below. If two people are inserting at the same time, as long as they are using different cursors, cursor.lastrowid will return the id for the last row that cursor inserted: cursor.execute('INSERT INTO foo (username,password) VALUES (?,?)',Ĭursor2.execute('INSERT INTO foo (username,password) VALUES (?,?)',Ĭursor.execute('INSERT INTO foo (id,username,password) VALUES (?,?,?)', Explanation In the above syntax, we create a table statement to use the AUTOINCREMENT property of SQLite, here we use different parameters as follows. The general rule for all insert/update defaults is that they only take effect if no value for a particular column is passed as an execute () parameter otherwise, the given value is used. AUTOINCREMENT in sqlite problem with python Ask Question Asked 14 years, 4 months ago Modified 11 months ago Viewed 37k times 17 I am using sqlite with python 2.5. You could use cursor.lastrowid (see "Optional DB API Extensions"): connection=nnect(':memory:')Ĭursor.execute('''CREATE TABLE foo (id integer primary key autoincrement ,Ĭursor.execute('INSERT INTO foo (username,password) VALUES (?,?)',
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