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According to DB-Engines, Oracle has been ranked as the most popular relational database system (RDBMS) (See the historical trend of relational DBMS popularity (at db-engines.com)). Oracle provides a way to write and read data in tabular form though a structured query language (SQL). It has a scalable relational database architecture and is the main application for data access and storage in many data centers.
Oracle databases are typically installed as either a single-instance Standalone database, or an Oracle RAC database. For this paper, a RAC one-node environment was used. However, the content in this paper is also applicable to a single-instance Standalone database.
With a single instance, Oracle databases run on a single host and are simple to install. With Oracle RAC, an Oracle database runs on one or more hosts. Some benefits of Oracle RAC deployments include: