MySQL error code
MySQL error 3012
MySQL server error 3012 is ER_EXPLAIN_NOT_SUPPORTED, reported with SQLSTATE HY000.
EXPLAIN FOR CONNECTION command is supported only for SELECT/UPDATE/INSERT/DELETE/REPLACE
| Error | 3012 |
|---|---|
| Name | ER_EXPLAIN_NOT_SUPPORTED |
| SQLSTATE | HY000 |
| Group | Server errors |
Source: MySQL 8.4 Error Reference