# Error 1766: The system variable cannot be set when there is an ongoing transaction

| Error Code | SQLSTATE | Error                                        | Description                                                                |
| ---------- | -------- | -------------------------------------------- | -------------------------------------------------------------------------- |
| 1766       | HY000    | ER\_VARIABLE\_NOT\_SETTABLE\_IN\_TRANSACTION | The system variable %s cannot be set when there is an ongoing transaction. |

## Possible Causes and Solutions

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