![]() If the AUTOINCREMENT keyword appears after INTEGER PRIMARY KEY, thatĬhanges the automatic ROWID assignment algorithm to prevent the reuse of ROWIDs over the lifetime of the database. This is generally used for the primary key column as it becomes easy for the developers to automatically generate a unique number for every new record. Answer Adam Mocicki 7 years ago Hello, Yes, it is a bug. Many Git commands accept both tag and branch names, so creating this branch may cause unexpected behavior. Auto Increment is a field used to generate a unique number for every new record added into a table. A tag already exists with the provided branch name. ![]() This is true regardless of whether or not the AUTOINCREMENT What is auto increment in SQL I am sure the name suggests its functionality by itself. On an INSERT, if the ROWID or INTEGER PRIMARY KEY column is not explicitly given a value, then it will be filled automatically with an unused integer, usually one more than the largest ROWID currently in use. Currently, the auto increment implementation of SQLAlchemy and SQLite will cause SQLite to reuse earlier-seen IDs in case rows are deleted. 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 ![]() The AUTOINCREMENT keyword imposes extra CPU, memory, disk space, andĭisk I/O overhead and should be avoided if not strictly needed. The keyword AUTOINCREMENT can be used with INTEGER field only. ![]() We can auto increment a field value by using AUTOINCREMENT keyword when creating a table with specific column name to auto increment. Here is what official SQLite documentation has to say on the subject (bold & italic are mine): SQLite AUTOINCREMENT is a keyword used for auto incrementing a value of a field in the table. ![]()
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