Key Components of Oracle Database Architecture
Oracle Database Architecture Overview
Oracle Database consists of several interconnected components that work together to provide robust data management capabilities. Understanding these components is essential for database administration and development.
Instance
An Oracle instance provides the runtime environment for database operations. It c ...
Posted on Sun, 16 Aug 2026 16:13:12 +0000 by jusitnm
Oracle PL/SQL Data Declaration and Type System
Every PL/SQL block you write defines and manipulates program data. Program data consists of data structures that exist only during the PL/SQL session (physically stored in the session's Program Global Area or PGA). Unlike database tables, program data is not persisted to disk. Program data encompasses:
Variables or constants: Variables can cha ...
Posted on Thu, 02 Jul 2026 17:05:35 +0000 by wtg21.org