References

• PostgreSQL 12 Rules on INSERT, UPDATE, and DELETE official documentation: https://www.PostgreSQL.org/docs/12/rules-update.html
• PostgreSQL 12 trigger functions official documentation: https://www.PostgreSQL.org/docs/12/plpgsql-trigger.html
• PostgreSQL 12 ALTER TRIGGER official documentation: https://www.PostgreSQL.org/docs/12/sql-altertrigger.html
• PostgreSQL 12 DROP TRIGGER official documentation: https://www.PostgreSQL.org/docs/12/sql-droptrigger.html
• PostgreSQL 12 event trigger official documentation: https://www.postgresql.org/docs/12/functions-event-triggers.html
• PostgreSQL 11 Server-Side Programming – Quick Start Guide: https://www.packtpub.com/big-data-and-business-intelligence/postgresql-11-server-side-programming-quick-start-guide