Objective-C SQLite - SQLITE_BUSY

Question

I have a database layer, when I have it on AppDelegate, it works perfectly.

When I take that layer in my ViewController, it returns the error SQLITE_BUSY, my database is locked.

I run sqlite_exec with args "BEGIN EXCLUSIVE TRANSACTION" and after sqlite_step(STATEMENT) I run sqlite_exec with args "COMMIT TRANSACTION"

Thanks in advance for any help.

• I searched for a problem similar to mine but none of the solutions solved my problem.

Answer 1

I'm managing existing code, so I cant switch. But If you wana switch and still work in sql fmdb ( https://github.com/ccgus/fmdb ) is a good alternate.

I've fixed my problem by adding following lines after using db. You should never forget to close the connection.

          sqlite3_finalize(statement);
          sqlite3_close(contactDB);