The shared pool stores parsed SQL statements, PL/SQL code, system parameters, and data dictionary information. It plays a role in nearly every database operation, such as executing SQL statements.
Read MoreThe redo log buffer is a circular buffer located in the System Global Area (SGA) that stores redo entries, which describe changes made to the database.
Read MoreThe database buffer cache, or simply the buffer cache, is a critical memory area that stores copies of data blocks read from data files. It allows all users connected to a database instance to share access to these cached data blocks.
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Oracle Data Guard ensures high availability, data protection, and disaster recovery by maintaining standby databases as replicas of the primary database. To manage this, several background processes work behind the scenes to handle the real-time synchronization between primary and standby databases. Let’s explore the core components:
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The Oracle Database Memory Architecture refers to the organization and management of memory resources within an Oracle database instance. It comprises various memory structures and components that collectively handle data storage, caching, and processing. These memory structures are designed to optimize performance, scalability, and reliability of the database system.
The primary components of the Oracle Database Memory Architecture are:
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