### 13.1.28 DROP LOGFILE GROUP Statement

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```
DROP LOGFILE GROUP logfile_group
    ENGINE [=] engine_name
```

 This statement drops the log file group named *`logfile_group`*. The log file group must already exist or an error results. (For information on creating log file groups, see [Section 13.1.16, “CREATE LOGFILE GROUP Statement”](create-logfile-group.html).)

Important

 Before dropping a log file group, you must drop all tablespaces that use that log file group for `UNDO` logging.

 The required `ENGINE` clause provides the name of the storage engine used by the log file group to be dropped. Currently, the only permitted values for *`engine_name`* are [`NDB`](mysql-cluster.html) and [`NDBCLUSTER`](mysql-cluster.html).

[`DROP LOGFILE GROUP`](drop-logfile-group.html) is useful only with Disk Data storage for NDB Cluster. See [Section 23.6.10, “NDB Cluster Disk Data Tables”](mysql-cluster-disk-data.html).

