# PostgreSQL chatbot: ask in natural language, get data via AI-generated SQL queries
This automation enables users to query a PostgreSQL database through a chat interface using natural language. The system uses an AI agent (GPT-4o-mini) to convert questions into SQL, executes the queries, and returns results directly in chat. Dialogue context is preserved, allowing follow-up questions and deeper interactions.
## Who it´s for
- Analysts who want to retrieve data via chat without writing SQL
- Managers needing quick access to database information
- Developers testing NL-to-SQL integrations
- Teams automating internal data access workflows
## What the automation does
- Receives user messages from a chat interface
- Routes input to a LangChain agent powered by GPT-4o-mini
- Generates secure and syntactically correct SQL queries
- Executes queries on PostgreSQL and retrieves results
- Returns formatted responses back to the user in chat
- Maintains conversation memory for contextual understanding
- Supports schema exploration (e.g., "What tables are available?")
## What´s included
- Ready-to-use n8n workflow
- Trigger and handler logic based on LangChain and OpenAI
- Integrations with PostgreSQL and OpenAI API
- Basic setup and adaptation guide
## Requirements for setup
- n8n instance (self-hosted or cloud)
- PostgreSQL database with read access configured
- OpenAI API key (compatible with GPT-4o-mini)
- Familiarity with environment variables and node configuration in n8n
## Benefits and outcomes
- Faster data retrieval without developer involvement
- Reduced dependency on SQL expertise for non-technical staff
- Increased productivity for analysts and managers
- Rapid prototyping of natural language interfaces to databases
- Context-aware responses due to memory buffer integration
- Secure execution with built-in query validation
## Important: template only
Important: you are purchasing a ready-made automation workflow template only. Rollout into your infrastructure, connecting specific accounts and services, 1:1 setup help, custom adjustments for non-standard stacks and any consulting support are provided as a separate paid service at an individual rate. To discuss custom work or 1:1 help, contact via chat
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