SQL

SQLTools enable an Agent to run SQL queries and interact with databases.

Prerequisites

The following example requires the sqlalchemy and openai libraries and a database URL.

uv pip install -U sqlalchemy openai

You will also need to install the appropriate Python adapter for the specific database you intend to use.

PostgreSQL

For PostgreSQL, you can install the psycopg adapter:

uv pip install -U psycopg

MySQL

For MySQL, you can install the mysqlclient adapter:

uv pip install -U mysqlclient

The mysqlclient adapter may have additional system-level dependencies. Please consult the official installation guide for more details. You will also need a database. The following example uses a Postgres database running in a Docker container.

 docker run -d \
  -e POSTGRES_DB=ai \
  -e POSTGRES_USER=ai \
  -e POSTGRES_PASSWORD=ai \
  -e PGDATA=/var/lib/postgresql \
  -v pgvolume:/var/lib/postgresql \
  -p 5532:5432 \
  --name pgvector \
  agnohq/pgvector:18

Example

The following agent will run a SQL query to list all tables in the database and describe the contents of one of the tables.

cookbook/91_tools/sql_tools.py

from agno.agent import Agent
from agno.tools.sql import SQLTools

db_url = "postgresql+psycopg://ai:ai@localhost:5532/ai"

agent = Agent(tools=[SQLTools(db_url=db_url)])
agent.print_response("List the tables in the database. Tell me about contents of one of the tables", markdown=True)

Toolkit Params

Parameter	Type	Default	Description
`db_url`	`str`	`None`	The URL for connecting to the database.
`db_engine`	`Engine`	`None`	The database engine used for connections and operations.
`user`	`str`	`None`	The username for database authentication.
`password`	`str`	`None`	The password for database authentication.
`host`	`str`	`None`	The hostname or IP address of the database server.
`port`	`int`	`None`	The port number on which the database server is listening.
`schema`	`str`	`None`	The specific schema within the database to use.
`dialect`	`str`	`None`	The SQL dialect used by the database.
`tables`	`Dict[str, Any]`	`None`	A dictionary mapping table names to their respective metadata or structure.
`enable_list_tables`	`bool`	`True`	Enables the functionality to list all tables in the database.
`enable_describe_table`	`bool`	`True`	Enables the functionality to describe the schema of a specific table.
`enable_run_sql_query`	`bool`	`True`	Enables the functionality to execute SQL queries directly.
`all`	`bool`	`False`	Enables all functionality when set to True.

Toolkit Functions

Function	Description
`list_tables`	Lists all tables in the database.
`describe_table`	Describes the schema of a specific table.
`run_sql_query`	Executes SQL queries directly.

Developer Resources

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Additional Resources

Prerequisites

PostgreSQL

MySQL

Example

Toolkit Params

Toolkit Functions

Developer Resources

​Prerequisites

​PostgreSQL

​MySQL

​Example

​Toolkit Params

​Toolkit Functions

​Developer Resources

Prerequisites

PostgreSQL

MySQL

Example

Toolkit Params

Toolkit Functions

Developer Resources