How do I handle migrations in SQL?

How do I handle migrations in SQL?

Handling migrations in SQL involves creating scripts to update your database schema. You can use tools like Flyway or Liquibase.

What are the best practices for writing migration scripts?

Best practices include keeping migrations small, using version control, and testing migrations in a staging environment before production.

Can you show me an example of a migration script?

Sure! Here's a simple example:

CREATE TABLE users (
    id INT PRIMARY KEY,
    name VARCHAR(100),
    email VARCHAR(100) UNIQUE
);

How do I roll back a migration?

To roll back a migration, you typically create a down script that reverses the changes made by the up script. For example:

DROP TABLE users;