Text to SQL Without Sending Data to OpenAI (Local DuckDB & Ollama Setup)
When developers build Natural Language to SQL features for enterprise applications, the default approach is sending raw schema and table samples over an API to OpenAI or cloud LLMs.
For security-conscious data teams handling HIPAA, GDPR, or sensitive customer data, sending raw files to third-party APIs creates immediate compliance friction.
In this guide, we break down how to achieve Text-to-SQL analytics locally with zero-raw-data exposure.
Instead of passing entire CSV or database contents to a cloud API, we separate Schema Context from Data Compute:






