<p>MySQL raises error 1605 when an EVENT object has an invalid creation context, usually because its DEFINER user or database no longer exists or lacks required privileges.</p>
<p>MySQL Error 1605 ER_EVENT_INVALID_CREATION_CTX occurs when an event’s creation context is no longer valid, often due to a missing or privilege-less DEFINER user. Recreate the event with a valid DEFINER or change the event owner to resolve the problem.</p>
Creation context of event `%s`.`%s` is invalid
MySQL throws error 1605 with the message "Creation context of event 'db'.'event_name' is invalid" when it attempts to load or execute an event whose stored creation context can no longer be honored.
The creation context records the DEFINER user, SQL mode, database collation, and other environment settings present at CREATE EVENT time. If any element becomes invalid, MySQL blocks the event to protect data integrity.
This error appears during server startup, event execution, SHOW EVENTS, or any DDL that touches the faulty event object. Fixing it quickly is critical because disabled events may halt scheduled data processing tasks.
The most common cause is a DEFINER account that was dropped or now lacks the EVENT privilege. When the scheduler tries to run the event as that user, validation fails.
Other triggers include renaming or dropping the event’s default database, changing database character set or collation to incompatible values, and importing dumps from another server with mismatched SQL modes.
First, find the affected event using SHOW EVENTS or by checking the server error log. Recreate the missing DEFINER user or grant it EVENT, TRIGGER, and necessary table privileges.
If recreating the user is not desirable, alter the event to set a new valid DEFINER. You can also dump, drop, and re-import the event definition under a new context.
Migrations between environments often break event definers because user accounts are different. Always export events with the --skip-definer option in mysqldump and recreate them with a consistent user.
Dropping a database that owns events leaves orphaned objects in the mysql.event table. Remove them with DROP EVENT or clean the rows manually after a full backup.
Standardize a service account solely for event definers across all environments. Grant it minimal required privileges and include it in deployment automation.
Enable continuous monitoring of the information_schema.events table. Alert when an event status becomes DISABLED ON SLAVE or INVALID to act before production jobs fail.
Error 1547 ER_UNKNOWN_TARGET: happens when a trigger’s DEFINER is invalid. Fix it by altering the trigger with a valid DEFINER.
Error 1227 ER_SPECIFIC_ACCESS_DENIED_ERROR: occurs when the current session lacks EVENT privilege. Grant the privilege or switch users.
The account named in the event’s DEFINER clause was dropped or never existed on this server.
The DEFINER user lost EVENT or underlying table privileges after the event was created.
The default database recorded in the creation context no longer exists, making the event invalid.
An incompatible change to the database collation prevents MySQL from restoring the original context.
Raised when a trigger’s definer user is invalid. Fix by altering the trigger with a valid DEFINER.
Occurs when the current session lacks the EVENT privilege needed to create or modify events.
Thrown when attempting to create an event that already exists. Resolve by renaming or dropping the existing event first.
No. The scheduler keeps running, but the specific event is disabled until you fix its context.
Ignoring them risks lost data updates. Always repair or drop invalid events to keep the schema clean.
Galaxy surfaces event errors in query history and lets you edit DEFINER clauses quickly in a modern SQL IDE, reducing context mismatches.
No restart is needed. Altering or recreating the event takes effect immediately.
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