Error
Error Code:
1303
MySQL Error 1303: Nested Routine Creation Forbidden
Description
This error indicates an attempt to define or alter a stored routine (like a procedure, function, trigger, event, or view) from within the body of another active stored routine. MySQL prevents this recursive creation to maintain database integrity and avoid complex dependencies.
Error Message
Can't create a %s from within another stored routine
Known Causes
4 known causesDefining Stored Procedure/Function
An `ALTER PROCEDURE`, `CREATE PROCEDURE`, `ALTER FUNCTION`, or `CREATE FUNCTION` statement is executed inside another stored procedure or function.
Defining a Trigger
A `CREATE TRIGGER` statement is executed within the scope of an existing stored routine, attempting to nest trigger definitions.
Defining an Event
An `ALTER EVENT` or `CREATE EVENT` statement is encountered while another stored routine is actively executing.
Defining a View
A `CREATE VIEW` or `ALTER VIEW` statement is attempted inside the body of a stored procedure or function.
Solutions
Coming SoonDetailed step-by-step solutions for this error are being prepared. In the meantime, try these general troubleshooting tips:
General Troubleshooting Tips
- Check the error message carefully for specific details
- Review recent changes that might have caused the error
- Search for the exact error code in the official documentation
- Check log files for additional context
- Try restarting the application or service