# QuerySQLDatabaseTool

> **Class** in `langchain_community`

📖 [View in docs](https://reference.langchain.com/python/langchain-community/tools/sql_database/tool/QuerySQLDatabaseTool)

Tool for querying a SQL database.

.. versionchanged:: 0.3.12

    Renamed from QuerySQLDataBaseTool to QuerySQLDatabaseTool.
    Legacy name still works for backwards compatibility.

## Signature

```python
QuerySQLDatabaseTool()
```

## Extends

- `BaseSQLDatabaseTool`
- `BaseTool`

## Properties

- `name`
- `description`
- `args_schema`

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[View source on GitHub](https://github.com/langchain-ai/langchain-community/blob/d5ea8358933260ad48dd31f7f8076555c7b4885a/libs/community/langchain_community/tools/sql_database/tool.py#L36)