How to use the SQL Stored Procedure Template
1. Choose dialect, type (procedure or function), and enter a name.
2. Add parameters — one per line in the format: param_name TYPE (e.g. p_user_id INT).
3. For functions, set the return type. The template is generated live — fill in the TODO body.
What is it?
Stored procedures and functions are named, reusable SQL routines stored in the database. Procedures execute logic but typically don't return values; functions compute and return a single value. Syntax for creating them varies significantly across MySQL, PostgreSQL, and MS SQL Server.
This tool generates the correct boilerplate shell so you only need to fill in the logic — correct DELIMITER handling for MySQL, $$ quoting for PostgreSQL, and EXEC syntax for MSSQL.
Benefits
Generate INSERT and CREATE TABLE statements instantly
Convert JSON, CSV, or a field list into ready-to-run SQL in seconds — no manual quoting, no counting columns, no copy-paste errors from spreadsheet data.
Build SELECT queries without memorising syntax
The visual query builder constructs WHERE conditions, ORDER BY, LIMIT, and DISTINCT clauses interactively — useful for anyone who writes SQL occasionally rather than daily.
Migrate between MongoDB and relational databases
Convert MongoDB find, insert, update, and delete operations directly to SQL equivalents — speed up data migration planning or schema exploration.
All your data stays in the browser
No SQL query, schema definition, or database content is ever uploaded to a server. Everything runs entirely client-side, making these tools safe to use with sensitive data.
Frequently asked questions
What's the difference between a procedure and a function?
Procedures execute actions (INSERT, UPDATE, etc.) and don't return values directly. Functions compute a value and can be used in SELECT expressions. In PostgreSQL, procedures were added in v11 and functions can also return tables.
Why does MySQL need DELIMITER?
MySQL uses semicolons as statement terminators. DELIMITER // changes the terminator so the semicolons inside the procedure body don't end it prematurely. Always reset DELIMITER back to ; after.