Error
Error Code:
1421
MySQL Error 1421: No Open Cursor
Description
This error indicates an operation (like fetching data or closing) was attempted on a MySQL cursor that was not in an open state. It commonly occurs in stored procedures or with prepared statements when cursor lifecycle management is incorrect.
Error Message
The statement (%lu) has no open cursor.
Known Causes
4 known causesCursor Not Explicitly Opened
An attempt was made to `FETCH` from or `CLOSE` a cursor without first executing the `OPEN` statement for that cursor.
Cursor Already Closed
The cursor was previously opened and then closed, but subsequent `FETCH` or `CLOSE` operations were attempted on the inactive cursor.
Invalid Statement Handle
The internal prepared statement handle associated with the cursor became invalid or was deallocated before the cursor operation was attempted.
Scope or Lifecycle Mismatch
The cursor or its associated statement handle was declared in a scope that ended, making it inaccessible or invalid for later operations.
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