Error
Error Code:
1644
MariaDB Error 1644: Unhandled User Exception
Description
MariaDB Error 1644 indicates that a `SIGNAL` statement within a stored program (like a procedure or function) was executed, but no appropriate `DECLARE ... HANDLER` was defined to catch and manage that specific exception. This typically means a custom error condition raised by your SQL code went unhandled.
Error Message
Unhandled user-defined exception condition
Known Causes
3 known causesMissing Exception Handler
A `SIGNAL` statement was executed within a stored program, but no `DECLARE ... HANDLER` was defined to catch the specific SQLSTATE or condition it raised.
Handler Scope Mismatch
An exception handler was defined, but its scope did not encompass the `SIGNAL` statement that raised the exception, preventing it from being caught.
Flawed SIGNAL Condition
The conditional logic preceding the `SIGNAL` statement was incorrect, causing it to execute when it shouldn't have, leading to an unhandled exception.
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