A Developer's Guide to the AI SQL Migration Generator

The AI SQL Migration Generator is an indispensable tool for managing database schema changes. It compares two versions of a SQL schema and automatically generates the DDL (Data Definition Language) scripts needed to migrate from the old version to the new one, as well as a script to roll back the changes.

Features

• Intelligent Schema Diffing: The AI analyzes two schemas and identifies all changes, including:
  • New or dropped tables, columns, and indexes.
  • Modified columns (data type changes, nullability, etc.).
  • Changes to constraints and foreign keys.
• Bi-directional Script Generation: The tool provides two critical scripts:
  • Migration Script: The ALTER TABLE, CREATE TABLE, etc. commands to upgrade Schema A to Schema B.
  • Rollback Script: The inverse commands to downgrade Schema B back to Schema A.
• Clear Summary: Get a human-readable, bulleted list of all the changes detected between the two schemas.
• Multi-Dialect Support: Generate scripts with the correct syntax for popular databases like PostgreSQL, MySQL, T-SQL, and more.

How to Use

1. Provide Both Schemas:
   • Paste your original schema into the "Schema A (Source)" editor.
   • Paste your new, target schema into the "Schema B (Target)" editor.
2. Select Your Dialect: Choose your database system from the dropdown menu.
3. Generate: Click the "Generate Migration" button.
4. Review and Use the Scripts:
   • Summary Tab: Get a quick overview of what changed.
   • Migration Script Tab: Copy this script to apply your update.
   • Rollback Script Tab: Save this script in case you need to revert the changes.