EC
1362
MariaDBerrorddlhigh confidence

Failed to alter event

Production Risk

Low — DDL fails; existing event is unchanged.

What this means

ALTER EVENT failed, typically because the user lacks privileges or the event does not exist.

Why it happens
  1. 1User lacks EVENT or SUPER privilege
  2. 2Event name referenced does not exist
How to reproduce
trigger — this will error
trigger — this will error
ALTER EVENT my_event ON SCHEDULE EVERY 2 DAY;

expected output

ERROR 1362 (HY000): Failed to alter event 'my_event'

Fix

Verify event exists and check privileges

Verify event exists and check privileges
SHOW EVENTS; SHOW GRANTS FOR CURRENT_USER();

Why this works

Confirm the event exists and the user has EVENT privilege.

Sources
Official documentation ↗

MySQL 8.0 — 1362 ER_EVENT_CANT_ALTER

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