Hi All I saw many website to see how we can solve "database is locked" error. This error can come because : 1. Connection is not closed 2. Connection is not disposed properly 3. Command is not disposed 4. Sqlite database reader is not closed or disposed. In my case i was getting some value from one table on loading of page/winform And then trying to update same table if any changes is made by user. Please comment below if anyone need code for this. Thanks