How do I unlock a SQLite database?

sqlite
ryantm picture ryantm · Sep 30, 2008 · Viewed 417.6k times · Source 
sqlite> DELETE FROM mails WHERE (`id` = 71);
SQL error: database is locked

How do I unlock the database so this will work?

Answer

noneno picture noneno · Aug 14, 2010

In windows you can try this program http://www.nirsoft.net/utils/opened_files_view.html to find out the process is handling db file. Try closed that program for unlock database

In Linux and macOS you can do something similar, for example, if your locked file is development.db:

$ fuser development.db

This command will show what process is locking the file:

> development.db: 5430

Just kill the process...

kill -9 5430

...And your database will be unlocked.

Related questions

Select first row in each GROUP BY group?

As the title suggests, I'd like to select the first row of each set of rows grouped with a GROUP BY. Specifically, if I've got a purchases table that looks like this: SELECT * FROM purchases; My Output: id | customer | total …

Read More
How to list the tables in a SQLite database file that was opened with ATTACH?

What SQL can be used to list the tables, and the rows within those tables in an SQLite database file - once I have attached it with the ATTACH command on the SQLite 3 command line tool?

Read More
How to get a list of column names on Sqlite3 database?

I want to migrate my iPhone app to a new database version. Since I don't have some version saved, I need to check if certain column names exist. This Stackoverflow entry suggests doing the select SELECT sql FROM sqlite_master …

Read More