Syntax
------

DROP TRIGGER [IF EXISTS] [schema_name.]trigger_name

Description
-----------

This statement drops a trigger. The schema (database) name is optional. If the
schema is omitted, the trigger is dropped from the default schema. Its use
requires the TRIGGER privilege for the table associated with the trigger.

Use IF EXISTS to prevent an error from occurring for a trigger that does not
exist. A NOTE is generated for a non-existent trigger when using IF EXISTS.
See SHOW WARNINGS.

Note: Triggers for a table are also dropped if you drop the table.

Atomic DDL
----------

MariaDB starting with 10.6.1
----------------------------
MariaDB 10.6.1 supports Atomic DDL and DROP TRIGGER is atomic.

Examples
--------

DROP TRIGGER test.example_trigger;

Using the IF EXISTS clause:

DROP TRIGGER IF EXISTS test.example_trigger;
Query OK, 0 rows affected, 1 warning (0.01 sec)

SHOW WARNINGS;
+-------+------+------------------------+
| Level | Code | Message                |
+-------+------+------------------------+
| Note  | 1360 | Trigger does not exist |
+-------+------+------------------------+

URL: https://mariadb.com/kb/en/drop-trigger/