What is PRAGMA Foreign_keys on?

Question

pragma foreign_keys = on enforces foreign keys. This is usually necessary because by default, SQLite does not enforce foreign keys. Explicitly turning off the validation of foreign keys might be useful when importing a . dump 'ed 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 synchronous?

The synchronous pragma gets or sets the current disk synchronization mode, which controls how aggressively SQLite will write data all the way out to physical storage. Following is the simple syntax. PRAGMA [database.]

What is PRAGMA integrity check?

pragma integrity_check; From the documentation: This pragma does an integrity check of the entire database. The integrity_check pragma looks for out-of-order records, missing pages, malformed records, missing index entries, and UNIQUE and NOT NULL constraint errors.

What is PRAGMA table info?

Description. The table_info pragma is used to query information about a specific table. The result set will contain one row for each column in the table.

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