# Error 3029: Expression of ORDER BY contains aggregate function and applies to the result of a non-ag

| Error Code | SQLSTATE | Error                                 | Description                                                                                                |
| ---------- | -------- | ------------------------------------- | ---------------------------------------------------------------------------------------------------------- |
| 3029       |          | ER\_AGGREGATE\_ORDER\_NON\_AGG\_QUERY | Expression #%u of ORDER BY contains aggregate function and applies to the result of a non-aggregated query |

## Possible Causes and Solutions

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