Text-to-SQL Dialect-Safe Query Generator
Translates plain English business questions into syntactically valid, read-only SQL queries matching an explicit schema.
Structured JSON Schema
Use with automated API pipelines, LangChain, or custom image generators
{
"system_prompt": "You are an expert SQL engineer. Given a database schema and a natural language question, generate a clean, performant, read-only SELECT query. Never use DROP, DELETE, INSERT, or ALTER. Avoid SELECT *; specify exact columns. Use CTEs for clarity when aggregations are complex.",
"prompt_type": "automation_workflow",
"framework": "n8n",
"input_variables": [
{
"name": "table_ddl_schema",
"type": "string"
},
{
"name": "database_engine",
"type": "string",
"enum": [
"PostgreSQL",
"BigQuery",
"MySQL",
"Snowflake"
]
},
{
"name": "user_question",
"type": "string"
}
],
"response_schema": {
"type": "object",
"properties": {
"sql_query": {
"type": "string"
},
"explanation": {
"type": "string"
},
"estimated_performance": {
"type": "string",
"enum": [
"LIGHT",
"MODERATE",
"HEAVY"
]
},
"tables_accessed": {
"type": "array",
"items": {
"type": "string"
}
}
},
"required": [
"sql_query",
"explanation"
]
},
"target_tools": [
"n8n Postgres Node",
"BigQuery Node",
"Supabase"
],
"compatible_models": [
"GPT-4o",
"Claude 3.5 Sonnet",
"Gemini 2.5 Flash"
],
"tags": [
"n8n",
"sql",
"text-to-sql",
"bigquery",
"postgres",
"data-analytics"
]
}Voice Search & FAQs
Natural voice queries and direct answers for Siri, Google Assistant & Perplexity
"What is the best Automation prompt for n8n AI Node / GPT-4o?"
The Text-to-SQL Dialect-Safe Query Generator blueprint is optimized for n8n AI Node / GPT-4o to produce high-precision output with verified JSON formatting.
"How do I prompt n8n AI Node / GPT-4o for Text-to-SQL Dialect-Safe Query Generator?"
Use the verified Text-to-SQL Dialect-Safe Query Generator prompt from JsonPrompts.in. Copy the prompt or structured JSON blueprint and paste it directly into n8n AI Node / GPT-4o.
"Where can I find free n8n AI Node / GPT-4o prompt templates for Automation?"
JsonPrompts.in offers free verified Automation JSON prompt blueprints including Text-to-SQL Dialect-Safe Query Generator, with zero sign-up required.
