The ones that haven’t were the ones with trailing commas. This is because it has been defined using. Example: CREATE TABLE Cats ( CatId INTEGER PRIMARY KEY, CatName ) In this table, the CatId column is an autoincrement column. By default, when you define a column as INTEGER PRIMARY KEY, it will auto-increment whenever you insert NULL into that column. tables (in sqlite3’s interactive mode) and it will prove that both users and settings have been created. Automatically Create an Auto-Increment Column. Running your original sql, you can introspect the database with. CREATE TABLE CSSATRULES ( id integer NOT NULL PRIMARY KEY AUTOINCREMENT, cssversion varchar(10) NOT NULL, syntaxid integer NOT NULL ). Wh0 is right, you need to trim the trailing commas from lines 26 and 36 only. No luck: Error: near line 2: near "username": syntax errorĮrror: near line 15: table posts already existsĮrror: near line 29: table comments already existsĮrror: near line 39: table settings already existsĮrror: near line 49: no such table: usersĮrror: near line 50: NOT NULL constraint failed: posts.lastEdited What mistake did I make in the SQL statements? Autoincrement IDs are a convenient way to create unique identifiers for each row in a database table. Using mysql2sqlite gives me this error: Error: near line 4: near ",": syntax errorĮrror: near line 45: no such table: usersĮrror: near line 46: NOT NULL constraint failed: posts.lastEdited Running cat init.sql | sqlite3 database.sqlite shows this error: Error: near line 15: near ")": syntax errorĮrror: near line 29: near ")": syntax errorĮrror: near line 50: no such table: posts 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.So I tried importing this into sqlite - Create the users table Next, insert a record into this table, passing a null value into the SQLite autoincrement field: sqlite> INSERT INTO salespeople VALUES (null, 'Fred', 'Flinstone', 10.0) Now, just use the SQLite lastinsertrowid () function to get the value of the SQLite autoincrement field that was just generated: In this case the result was 2, because this. There are a couple of ways you can create an AUTOINCREMENT column: You can create it implicitly when you define the column as INTEGER PRIMARY KEY.
This is true regardless of whether or not the AUTOINCREMENT In SQLite, an AUTOINCREMENT column is one that uses an automatically incremented value for each row that’s inserted into the table. 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. 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 Autoincrement A description of the AUTOINCREMENT keyword in SQLite, what it does, why it is sometimes useful, and why it should be avoided if not strictly necessary.
The AUTOINCREMENT keyword imposes extra CPU, memory, disk space, andĭisk I/O overhead and should be avoided if not strictly needed.
Here is what official SQLite documentation has to say on the subject (bold & italic are mine):
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