# Error 1853: Dropping a primary key is not allowed without also adding a new primary key

| Error Code | SQLSTATE | Error                                              | Description                                                                 |
| ---------- | -------- | -------------------------------------------------- | --------------------------------------------------------------------------- |
| 1853       | HY000    | ER\_ALTER\_OPERATION\_NOT\_SUPPORTED\_REASON\_NOPK | Dropping a primary key is not allowed without also adding a new primary key |

## Possible Causes and Solutions

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