Oracle is a relational database management system (RDBMS) which has produced and marketed by Oracle Corporation. Oracle provides an efficient solution for information integration that enables full exploitation of the power and features of the Oracle database. This includes such features as powerful SQL parsing and distributed optimization capabilities. In almost all relational databases, data is accessed through SQL or Structured Query Language and Oracle is no exception. SQL allows to SELECT data, INSERT new records, UPDATE existing records and DELETE records to get rid of. SQL can be embedded in other languages can run scripts of SQL directly against the database. Oracle is made up of a set of processes running in an operating system. These processes manage how data is stored and how it is accessed. Now just need to understand that Oracle is a program that is running in the background, maintaining data and figuring out where it should go on a hard drive. Some similar databases like Sybase, SQL-Server one have facilities for using loops, conditions, arrays and so on in a program and also facilities like cursors and temp tables but all this would be used in a convoluted fashion which are very slow and resource consuming operations. The operations are not implemented as in Oracle which is efficient enough. Oracle is a database that responds very well with excellent performance in demanding environments. Oracle is a major database which along with its added features passes the ACID test, which is important in insuring the integrity of data. This is very important because data is the heart of any system in organization. One of the main advantage of oracle over other databases is in its recent version oracle has the concept of “Flashback technology” and Solver Circle Ltd uses this technology. By Flash technology it helps in recovery by working just on the changed data. Thus Flashback provides an efficient recovery from human errors, faster database recovery, helps in simplifying the management and administration processes and so on. Oracle is used for many large applications and Solver Circle Ltd implemented many applications using oracle database.