Oracle Database Architecture

Oracle Database is a complex yet powerful RDBMS that is structured into three main components: Memory Structures, Process Structures, and Storage Structures.

1. Oracle Memory Architecture

The memory architecture consists of the System Global Area (SGA) and the Program Global Area (PGA). These are responsible for caching, buffering, and managing user sessions efficiently.

2. Oracle Process Structure

Oracle Database runs multiple background and server processes to handle user queries and system operations efficiently.

3. Oracle Storage Architecture

The storage structure consists of data files, control files, redo log files, and tablespaces, which ensure efficient data management and recovery.