Oracle RAC allows multiple instances of Oracle Database to run on different servers (nodes) while accessing a single shared database. This architecture not only enhances availability...
Explore the essential steps involved in starting up an Oracle Real Application Clusters (RAC) environment. Understanding this sequence is crucial for database administrators and anyone working with...
The Program Global Area (PGA) is an essential memory structure in Oracle databases, specifically allocated for a dedicated server session. It is subdivided into various areas, each serving distinct...
The Fixed SGA (System Global Area) is a predefined memory area within the Oracle database that serves essential housekeeping functions...
The Streams pool is a dedicated memory area used exclusively by Oracle Streams to manage data replication and messaging...
The Java pool is a dedicated area of memory within the Oracle database that stores session-specific Java code and data executed in the Java Virtual Machine (JVM)...
The large pool is an optional memory area in Oracle databases designed for memory allocations that exceed the size limits of the shared pool...
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...
The 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...