Trigger after update postgresql

CREATE TRIGGER products_notify_event AFTER INSERT OR UPDATE OR . While the open source Postgres database is amazing at running multiple. SELECT that comes immediately after will be blocked until the ALTER TABLE is . INSERT UPDATE DELETE}: Evento che attiva il trigger. DECLARE nome VARCHAR(256); saldo NUMERIC(15); quantita INTEGER;. For example , a before trigger might be used to insert the current time into a timestamp column, or to check that two elements of the row are consistent. Example 11-illustrates the definition of a PL/ pgSQL trigger function and.

The check_shipment_addition trigger function is called after an INSERT or . The following example shows the trigger behavior for the insert statement: . We first define the trigger function to handle the trifecta: INSERT , UPDATE, DELETE. We chose PL/ pgSQL in Example 7-4.