DROP LANGUAGE SQL - Language Statements DROP LANGUAGE remove a user-defined procedural language DROP [ PROCEDURAL ] LANGUAGE name [ CASCADE | RESTRICT ] DROP LANGUAGE will remove the definition of the previously registered procedural language called name. name The name of an existing procedural language. For backward compatibility, the name may be enclosed by single quotes. CASCADE Automatically drop objects that depend on the language (such as functions in the language). RESTRICT Refuse to drop the language if any objects depend on it. This is the default. DROP LANGUAGE This message is returned if the language was successfully dropped. ERROR: Language "name" doesn't exist This message is returned if a language called name is not found in the database. This command removes the procedural language plsample: DROP LANGUAGE plsample; There is no DROP LANGUAGE statement in the SQL standard.