# QuerySQLDatabaseTool

> **Class** in `langchain_ibm`

📖 [View in docs](https://reference.langchain.com/python/langchain-ibm/agent_toolkits/sql/tool/QuerySQLDatabaseTool)

Tool for querying a SQL database.

## 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-ibm/blob/b422eef1b02c86b66b5227ea852fda8351d541aa/libs/ibm/langchain_ibm/agent_toolkits/sql/tool.py#L55)