Error
Error Code:
1309
MySQL Error 1309: Redefining Stored Program Labels
Description
Error 1309, 'Redefining label %s', indicates that a `LABEL` identifier has been declared more than once within the same scope of a MySQL stored program (procedure, function, trigger, or event). This typically happens when you define identical labels for different blocks or loops in the same routine, leading to ambiguity and preventing the program from being created or altered.
Error Message
Redefining label %s
Known Causes
3 known causesDuplicate Label Declaration
A `LABEL` with the same name is declared multiple times within the same stored program, making it ambiguous for `LEAVE` or `ITERATE` statements.
Identical Labels in Nested Blocks
Even in nested `BEGIN...END` blocks or loops, if a label is redeclared with the same name as an outer or sibling label, it can cause this error due to scope overlap.
Unmodified Copied Code
Copying and pasting sections of code that contain labeled blocks without renaming the labels can inadvertently introduce duplicates within the same routine.
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