> 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-4000-to-4099/e4025.md).

# Error 4025: CONSTRAINT failed for

| Error Code | SQLSTATE | Error                  | Description                                  |
| ---------- | -------- | ---------------------- | -------------------------------------------- |
| 4025       | 23000    | ER\_CONSTRAINT\_FAILED | CONSTRAINT %`s failed for %`-.192s.%\`-.192s |

## Possible Causes and Solutions

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