How can I handle errors in Go SQL migrations?

How can I handle errors in Go SQL migrations?

In Go, you can handle errors in SQL migrations by using the error return value from your migration functions. Always check for errors after executing a migration.

Can you give me an example of a migration function with error handling?

Sure! Here's a simple example:

func Migrate(db *sql.DB) error {
    _, err := db.Exec("CREATE TABLE users (id INT PRIMARY KEY, name TEXT)")
    if err != nil {
        return fmt.Errorf("error creating table: %w", err)
    }
    return nil
}

What should I do if a migration fails?

If a migration fails, you should roll back any changes made during that migration to maintain database integrity. You can implement this using transactions.

How do I implement transactions in Go SQL migrations?

You can use the Begin() method on your database connection to start a transaction, and then commit or rollback based on whether an error occurs.