1359
MariaDBerrorddlhigh confidence
Event already exists
Production Risk
Low — DDL fails; existing event is unchanged.
What this means
CREATE EVENT failed because an event with the same name already exists in the database.
Why it happens
- 1Running the same event creation script twice
- 2Not using CREATE OR REPLACE EVENT or IF NOT EXISTS
How to reproduce
trigger — this will error
trigger — this will error
CREATE EVENT my_event ON SCHEDULE EVERY 1 DAY DO SELECT 1; -- run twice
expected output
ERROR 1359 (HY000): Event 'my_event' already exists
Fix 1
Use IF NOT EXISTS
Use IF NOT EXISTS
CREATE EVENT IF NOT EXISTS my_event ON SCHEDULE EVERY 1 DAY DO SELECT 1;
Why this works
Skips creation silently if the event already exists.
Fix 2
Drop and recreate
Drop and recreate
DROP EVENT IF EXISTS my_event; CREATE EVENT my_event ON SCHEDULE EVERY 1 DAY DO SELECT 1;
Why this works
Ensures the event definition is up to date.
Version notes
Sources
Official documentation ↗
MySQL 8.0 — 1359 ER_EVENT_ALREADY_EXISTS
Content generated with AI assistance and reviewed for accuracy. Found an error? hello@errcodes.dev