# yii\debug\actions\db

> 1 class of the yii\debug\actions\db namespace.

[API reference](/docs/api/index.md) › [Debug](/docs/extensions/debug/reference/index.md) › [actions](/docs/extensions/debug/reference/actions/index.md) › db

## Classes

| Class | Summary |
| --- | --- |
| [`ExplainAction`](/docs/extensions/debug/reference/actions/db/explainaction/index.md) | Renders the EXPLAIN plan for a single captured SQL query. |