How do you VACUUM a SQLite database?

Question

VACUUM command cleans the main database by copying its contents to a temporary database file and reloading the original database file from the copy. This eliminates free pages, aligns table data to be contiguous, and otherwise cleans up the database file structure.

How do you VACUUM SQLite?

The VACUUM command works by copying the contents of the database into a temporary database file and then overwriting the original with the contents of the temporary file. When overwriting the original, a rollback journal or write-ahead log WAL file is used just as it would be for any other database transaction.

How do I reduce the size of my SQLite database?

SQLite is somewhat lazy to reclaim unused space; use the VACUUM command or auto vacuum mode. the datbase format trades space efficiency for speedy access. if you just dump the data contents, either as SQL dump or simply a CVS file for each database table, you'll likely get smaller files.

What is VACUUM in database?

VACUUM and ANALYZE are the two most important PostgreSQL database maintenance operations. A vacuum is used for recovering space occupied by “dead tuples” in a table. A dead tuple is created when a record is either deleted or updated (a delete followed by an insert).

How do I fix a corrupted SQLite database?

General solution1Copy corrupted map file (or other sqlite database) from your device to PC.2Unpack it and place corrupted database file into the same directory as sqlite3.exe.3Start “cmd” and navigate to the directory with the corrupted file.4Run.Corrupted SQLite Database Repair - Locus Map

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