postgresql-triggers

FOR EACH STATEMENT trigger example in PostgreSQL

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OLD and NEW are null or not defined in a statement-level trigger. Per documentation: NEW Data type RECORD; variable holding the new database row for INSERT/UPDATE operations in row-level triggers. This variable is null in statement-level triggers and for DELETE operations. OLD Data type RECORD; variable holding the old database row for UPDATE/DELETE operations in … Read more

How to show the trigger(s) associated with a view or a table in PostgreSQL?

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This will return all the details you want to know select * from information_schema.triggers; or if you want to sort the results of a specific table then you can try SELECT event_object_table ,trigger_name ,event_manipulation ,action_statement ,action_timing FROM information_schema.triggers WHERE event_object_table=”tableName” — Your table name comes here ORDER BY event_object_table ,event_manipulation; the following will return table … Read more