What Is Oracle Database
The Oracle Database is an object-relational database management system created and advertised by Oracle Corporation. The Oracle Database is regularly alluded to as Oracle RDBMS or basically Oracle.
Database and Instance
An Oracle Database server comprises of a database and something like one database example. A database is a set of records that store information while a database instance is a set of memory structures which manages database files. The database instance also consists of background processes.
Info and an instance are closely connected to the term Oracle Database are commonly accustomed confer with each instance and database. The following image illustrates the Oracle Database server architecture: