A transaction is a group of SQL operations that are executed as a single unit.
All operations must succeed together or none of them should be applied.
Transactions are used to maintain data consistency.
They are very important in applications such as banking and online payments.
A transaction begins automatically when SQL statements are executed.
Changes remain temporary until committed.
If an error occurs during execution, all changes can be undone.
This protects the database from incorrect data.
Transactions ensure reliability and safety.
They are the foundation of data integrity.
Understanding transactions is mandatory for backend developers.