Triggers are defined using PL/SQL. Refer to Oracle Database PL/SQL Language Reference for complete information on creating, altering, and dropping triggers.
Use the DROP TRIGGER statement to remove a database trigger from the database.
The trigger must be in your own schema or you must have the DROP ANY TRIGGER system privilege. To drop a trigger on DATABASE in another user's schema, you must also have the ADMINISTER DATABASE TRIGGER system privilege.
Specify the schema containing the trigger. If you omit schema, then Oracle Database assumes the trigger is in your own schema.
Specify the name of the trigger to be dropped. Oracle Database removes it from the database and does not fire it again.