# Page Not Found

The URL `ref/mdb/error-codes/ER_UNUSED_22` does not exist.

You might be looking for one of these pages:
- [Error 1022: Can't write; duplicate key in table](https://mariadb.com/docs/server/reference/error-codes/mariadb-error-codes-1000-to-1099/e1022.md)
- [Error 1122: Can't load function](https://mariadb.com/docs/server/reference/error-codes/mariadb-error-codes-1100-to-1199/e1122.md)
- [Error 1222: The used SELECT statements have a different number of columns](https://mariadb.com/docs/server/reference/error-codes/mariadb-error-codes-1200-to-1299/e1222.md)
- [Error 1322: Cursor statement must be a SELECT](https://mariadb.com/docs/server/reference/error-codes/mariadb-error-codes-1300-to-1399/e1322.md)
- [Error 1422: Explicit or implicit commit is not allowed in stored function or trigger](https://mariadb.com/docs/server/reference/error-codes/mariadb-error-codes-1400-to-1499/e1422.md)

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1. **Browse the full index**: [/sitemap.md](https://mariadb.com/docs/sitemap.md) - Complete documentation index
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