Apex transactions are used to express a collection of operations. These procedures are carried out as a single unit, and they are either finished successfully or not. This is due to the fact that the entire Apex transaction is rolled back, and if any error happens in even a single operation, no data is committed to the database. The activities that occur within the transaction boundary are only one unit of operation. Apex transactions maintain data integrity since the code executes as part of atomic Apex transactions. for more info visit: https://www.iteducationcentre.com/salesforce-training-in-pune.php