ORACLE ARCHITECTURE -1 What is DATABASE ? A database is an organized collection of data, generally stored and accessed electronically from a computer system. As a database administrator  we can say one more definition A Database is a collection of  Logical level  and Physical level In Logical level… Read More

Oracle : Oracle Server Architecture

Oracle Server Architecture   An Oracle server includes an Oracle Instance and an Oracle database. Oracle instance:  An Oracle Instance is a combination of two different sets of components. The first component includes the Memory components. That is nothing but SGA (shared global area or system global area)   The second… Read More