Best way to get the ID of the last inserted row on

Question

On iPhone, what's the best way to get the ID of the last inserted row on an SQLite Database using FMDB ?

Is there a better way rather than doing :

SELECT MAX(ID)

Answer 1

Try the following:

var rowid: Int = Int(contactDB.lastInsertRowId())

Answer 2

The function sqlite3_last_insert_rowid() is what you're looking for. Having just checked out the source code for FMDB, there seems to be a method on FMDatabase called -lastInsertRowId that wraps the function.

Answer 3

If you can guarantee that your ID column is an auto-increment column, MAX(ID) is fine.

But to cover any case, there's a specialized SQLite function called LAST_INSERT_ROWID():

SELECT LAST_INSERT_ROWID();

In FMDB, you use the -lastInsertRowId method (which internally runs the above):

int lastId = [fmdb lastInsertRowId];