Error
Error Code:
1413
MariaDB Error 1413: Duplicate Handler Declaration
Description
This error indicates that a `DECLARE HANDLER` statement has been declared more than once for the same condition within the same `BEGIN...END` block in a stored procedure or function. It prevents the procedure from being created or executed due to ambiguity in error handling definitions.
Error Message
Duplicate handler declared in the same block
Known Causes
3 known causesMultiple Handlers for Same Condition
You have declared two or more `DECLARE HANDLER` statements for the identical SQL condition (e.g., `SQLSTATE '23000'`, `SQLEXCEPTION`, or `NOT FOUND`) within the same `BEGIN...END` block.
Handler Duplication via Copy-Paste
The stored procedure or function code contains an accidental duplicate `DECLARE HANDLER` statement, often due to copy-pasting errors during development.
Incorrect Scope for Handlers
A handler declared in an outer block is effectively duplicated or shadowed by an identically defined handler in a nested `BEGIN...END` block, leading to a conflict.
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