Oct 20, 2026 · Artificial Intelligence

Semantic Layer + NL2DSL + DSL2SQL: Building a Production Text-to-SQL Engine

This article details a production-grade SQL generation engine using a semantic layer, NL2DSL via RAG, and deterministic DSL2SQL translation, achieving 85-90% accuracy through ambiguity detection, validation, permission injection, and feedback loops.

DSL2SQLData EngineeringLLM

0 likes · 15 min read

Semantic Layer + NL2DSL + DSL2SQL: Building a Production Text-to-SQL Engine

Architect's Ambition

Apr 22, 2026 · Artificial Intelligence

From Natural Language to Executable SQL: Building an AI‑Powered SQL Generation Engine

The article explains why directly letting large language models generate SQL leads to poor accuracy, and presents a production‑grade engine that combines a semantic knowledge layer, RAG‑enhanced NL‑to‑DSL conversion, and a deterministic DSL‑to‑SQL translator to achieve 85‑90% correctness in real‑world deployments.

DSL2SQLNL2DSLRAG

0 likes · 13 min read

From Natural Language to Executable SQL: Building an AI‑Powered SQL Generation Engine