> For the complete documentation index, see [llms.txt](https://mariadb.com/docs/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://mariadb.com/docs/server/reference/error-codes/mariadb-error-codes-1200-to-1299/e1294.md).

# Error 1294: Invalid ON UPDATE clause

| Error Code | SQLSTATE | Error                   | Description                              |
| ---------- | -------- | ----------------------- | ---------------------------------------- |
| 1294       | HY000    | ER\_INVALID\_ON\_UPDATE | Invalid ON UPDATE clause for '%s' column |

## Possible Causes and Solutions

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