What is pragma Foreign_keys off?

What is PRAGMA Foreign_keys on?

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; 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 does SQLite do?

Executive Summary. SQLite is an in-process library that implements a self-contained, serverless, zero-configuration, transactional SQL database engine. The code for SQLite is in the public domain and is thus free for use for any purpose, commercial or private.

What is SQLite Wal?

WAL file overview WAL files are a form of cache whereby data that is written to an SQLite db is first written to the WAL file (when this is enabled) and then at a later time (known as a checkpoint) the SQLite data is written into the main database.