Is the pragma SQLite_omit_deprecated deprecated?

What is pragma Journal_mode?

The journal_mode pragma gets or sets the journal mode which controls how the journal file is stored and processed. Following is the simple syntax. PRAGMA journal_mode; PRAGMA journal_mode = mode; PRAGMA database.

What is pragma Foreign_keys off?

PRAGMA foreign_keys = boolean; Query, set, or clear the enforcement of foreign key constraints. This pragma is a no-op within a transaction; foreign key constraint enforcement may only be enabled or disabled when there is no pending BEGIN or SAVEPOINT.

What is pragma Integrity_check?

PRAGMA integrity_check behaves like a SELECT query that returns results in a single row. To read the results with sqlite3_exec , you need to use a callback. Please note that PRAGMA integrity_check is not guaranteed to find all errors, so you can use it only to check for broken databases, not for healthy databases.

How do I compact 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.