Enterprise-Grade Text-to-SQL with n8n — Part 2: From Raw SQL to Secure, Validated, Insightful Responses I work as a Data Warehouse (DWH) Developer in the Analytic Development team at Trendyol …

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A detailed walkthrough of securing and validating LLM-generated SQL queries in production. Covers JavaScript-based security guardrails, SQL injection prevention, automatic row-level security injection through placeholder replacement, BigQuery result parsing and normalization, and transforming raw data into business insights. Includes comprehensive logging for continuous improvement and demonstrates how n8n orchestrates the entire pipeline from SQL generation to final response.