Error
Error Code:
1353
MySQL Error 1353: Column Count Mismatch in View/CTE
Description
This error indicates a discrepancy between the number of columns specified in the `SELECT` list of a `VIEW`, `DERIVED TABLE`, or `COMMON TABLE EXPRESSION (CTE)` and the number of column names provided explicitly for that construct. It typically occurs during the definition or alteration of these database objects, preventing their successful creation or modification.
Error Message
In definition of view, derived table or common table expression, SELECT list and column names list have different column counts
Known Causes
3 known causesView Column List Mismatch
When creating or altering a `VIEW`, the number of column names provided in the optional list after the view's name does not match the actual number of expressions in the view's defining `SELECT` statement.
Derived Table Column Discrepancy
A subquery used as a derived table in the `FROM` clause includes an explicit column list whose count differs from the number of columns returned by its own `SELECT` statement.
CTE Column Count Error
In a Common Table Expression (CTE) defined using the `WITH` clause, the explicit column list provided for the CTE does not correspond to the number of columns returned by the CTE's defining `SELECT` statement.
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