Major objective of this lecture is to presentation on Distributed Transactions. Distributed transactions is a database transaction in which two or more network hosts are participating. Usually, hosts present transactional resources, while the transaction manager is answerable to creating and managing a global transaction which encompasses all surgical procedures against such resources. Distributed transactions, as some other transactions, must have all four ACID: atomicity, uniformity, isolation, durability; assets, where atomicity ensures all-or-nothing outcomes to the unit of operate.