As the backup file does not have any lock, it will be ready for the new transactions and queries by the user. $mv BackupAdmin.Sqlite Administrator.SqliteДЄfter the successful completion of the queries, the backup file will replace the locked database. You should replace the backup database with the primary database. In the same directory, you will have the same backup file with the BackupAdmin name. Suppose your database name is Administrator.sqlite If you have taken the backup file of SQLite, then you can restore it at the database engine and remove the locked one. The simple solution to remove the lock error is to use the backup copy of the same database. No further queries will work on a locked database. But, when two separate transactions try to run the query on the same database, it creates conflict, and the database engine locks the database. When the queries are still processing, it shows the busy status. The BUSY status shows that two separate transactions are working on two different databases. NOTE- Some users confuse SQLITE_LOCKED with SQLITE_BUSY status, but they are different.

When multiple threads access the same table and two or more SELECT queries try to access the same table, the engine may block some access and lock the database.

But the overall changes are not completed until sqlite_finalize() or sqlite_reset() commands are run. Generally, the user thinks that when SQLite gives SQLITE_DONE status, it means that the process is complete.

If the SELECT statement is pending, and you put a new CREATE or DROP statement.

When a SELECT transaction is already activated on a table, you try a CREATE query.

Here are the different scenarios and conditions that can affect the database and lock it: Different scenarios of SQLite Database Locked error Now, the user cannot run more transactions. SQLite engine finds it abnormal and locks the database. Normally, the error occurs when two users try to run transactions on the same tables and change the content.

As it follows a weak SQL syntax, it has many issues related to its integrity. SQLite database system is developed with a C library. If you are facing the same problem, then you will get some simple solutions to remove error 5 and make the SQLite database functional. A locked SQLite database stops the user from writing more transactions, and the tables are not updated or altered anymore.

Sqlite database file