Agentsql vs SQL Mocker

AgentSQL is a web service that turns plain-English questions about connected databases into read-only SQL queries, then returns a chart, table, and plain-English answer. Each response shows the exact SQL, and users can rephrase their question to have the service rewrite and rerun it. Supported connections are Postgres, MySQL, Snowflake, and BigQuery. Connections use least-privilege read-only credentials, can be limited to selected tables, and can be revoked. AgentSQL says it encrypts connections in transit, does not copy database tables or build a shadow warehouse, and does not use database contents, queries, or results to train AI models. It stores query history; Team and Scale also retain result rows. Plans are billed yearly: Starter costs $24 per month, Team $59 per month, Scale $179 per month, and Enterprise $299 per month. Monthly allowances are 600, 1,500, 5,000, and 8,000 questions respectively, with no more than one tenth usable in a day. The service targets founders, operations teams, analysts, and product managers.

SQL Mocker is a web app that generates SQL from natural-language questions using a reviewed copy of database schema metadata. Users can provide schema details through a file, pasted metadata, manual setup, or results from an extraction script run in their own database. Its workspace can detect, review, edit, or add table relationships, including ones missing from the supplied metadata. Existing SQL can also be submitted for explanation, review, improvement, formatting, conversion, troubleshooting, or mapping columns and joins. SQL Mocker can generate dummy data from a schema to preview results and test query logic without production rows. Its homepage lists 17 supported database systems, including SQL Server, PostgreSQL, MySQL, Oracle, Snowflake, BigQuery, and MongoDB. It says it needs no database credentials for schema-based generation and does not connect to a live customer database. Generated SQL is presented for review and copying; users run it themselves in their own database tool. Saved projects sync to the user account and are cached in the browser, with backup files available from History. The free Explore plan includes 50 AI queries total and five saved projects; paid plans are marked as coming soon.