> 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-1900-to-1999/e1905.md).

# Error 1905: Cannot define foreign key with clause on a generated column

| Error Code | SQLSTATE | Error                                         | Description                                                    |
| ---------- | -------- | --------------------------------------------- | -------------------------------------------------------------- |
| 1905       |          | ER\_WRONG\_FK\_OPTION\_FOR\_GENERATED\_COLUMN | Cannot define foreign key with %s clause on a generated column |

## Possible Causes and Solutions

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