Error
Error Code:
1361
MySQL Error 1361: Trigger on View or Temp Table
Description
This error occurs when you attempt to create a database trigger on an object that is either a `VIEW` or a `TEMPORARY TABLE`. MySQL's design prevents triggers from being associated with these types of objects, as triggers are intended for persistent base tables.
Error Message
Trigger's '%s' is view or temporary table
Known Causes
4 known causesTrigger on a Database View
You attempted to define a trigger on a `VIEW` object instead of a base table. MySQL does not permit triggers on views.
Trigger on a Temporary Table
The target table for your trigger definition was a `TEMPORARY TABLE`. Triggers cannot be associated with temporary tables in MySQL.
Misunderstanding Trigger Scope
Developers sometimes try to use triggers for logic that should be handled at the application layer or through stored procedures operating on base tables, not views or temporary tables.
Automated Script Error
An automated script or migration tool might attempt to create triggers on objects without verifying if they are base tables, leading to this error.
Solutions
3 solutions available1. Remove Trigger from View/Temporary Table easy
The most direct solution is to remove the trigger that is erroneously attached to a view or temporary table.
1
Identify the trigger name and the object it's associated with. The error message '%s' will typically contain this information.
2
Connect to your MySQL server using a client (e.g., MySQL Workbench, mysql command-line client).
3
Execute the `DROP TRIGGER` statement to remove the trigger. Replace `trigger_name` with the actual name of your trigger.
DROP TRIGGER trigger_name;4
Verify that the trigger has been removed by querying the `information_schema.TRIGGERS` table.
SELECT TRIGGER_NAME, EVENT_OBJECT_TABLE FROM information_schema.TRIGGERS WHERE TRIGGER_NAME = 'trigger_name';2. Recreate Trigger on Base Table medium
If the trigger's logic is intended for the underlying base table of a view, recreate it on the base table.
1
Determine the base table(s) that the view is built upon. You can often find this by examining the `CREATE VIEW` statement.
2
Extract the `CREATE TRIGGER` statement for the trigger that is causing the error. You can get this from your application code, version control, or by querying `information_schema.TRIGGERS` (though the `TRIGGER_BODY` might be truncated for large triggers).
SELECT EVENT_MANIPULATION, EVENT_TIMING, EVENT_OBJECT_TABLE, TRIGGER_BODY FROM information_schema.TRIGGERS WHERE TRIGGER_NAME = 'trigger_name';3
Modify the `EVENT_OBJECT_TABLE` in the `CREATE TRIGGER` statement to point to the correct base table instead of the view name.
CREATE TRIGGER trigger_name AFTER INSERT ON base_table_name FOR EACH ROW BEGIN -- your trigger logic here END;4
Execute the modified `CREATE TRIGGER` statement against your database.
5
Once the trigger is successfully created on the base table, you can optionally drop the erroneous trigger from the view (as per Solution 1).
DROP TRIGGER trigger_name;3. Review and Refactor Application Logic advanced
Analyze why the trigger was created on a view or temporary table and adjust the application's data manipulation logic.
1
Examine the application code that is attempting to create or use the trigger. Understand the purpose of the trigger and why it was associated with a view or temporary table.
2
If the trigger's functionality is essential, determine if it can be achieved through alternative means, such as stored procedures, application-level logic, or by creating the trigger on the appropriate base tables.
3
Consider if the view or temporary table is being used in a way that bypasses intended data integrity constraints. Refactor the application to interact with the base tables directly for operations that require triggers.
4
Implement the corrected logic in your application and then ensure the trigger is either removed from the view/temp table or correctly recreated on the base table.