How do I unlock a SQLite database?

Question

sqlite> DELETE FROM mails WHERE (`id` = 71);
SQL error: database is locked

How do I unlock the database so this will work?

Answer 1

If you want to remove a "database is locked" error then follow these steps:

1. Copy your database file to some other location.
2. Replace the database with the copied database. This will dereference all processes which were accessing your database file.