Principle objective of this lecture is to presentation on Oracle Transactions. Oracle Transactions ia a transaction begins while using the first executable SQL statement after having a commit, rollback or connection made to the Oracle engine. All changes made to an Oracle desk data via model a transaction are designed or undone on one instance. This lecture specifically focus on a transaction is a group of events that occurs between any of following events: Disconnecting from Oracle, Connecting to Oracle and Committing changes to the database table.