Oracle 19c introduces a powerful new feature for Data Guard setups: the Automatic Flashback of Standby Database. This feature simplifies the process of flashing back a physical standby to a restore point from the primary by replicating restore points automatically. Prerequisites Steps 1. Check the Primary Database Configuration Run the following command on the Primary […]
Oracle Database 19c introduced a powerful feature for multitenant environments: the ability to run Automatic Database Diagnostic Monitor (ADDM) analysis on individual pluggable databases (PDBs). With ADDM analysis at the PDB level, administrators can now focus on specific performance issues within a single PDB, making it easier to tune and optimize performance in a multitenant […]
What is histogram? In Oracle, a histogram is a specialized column statistic that provides detailed information about data distribution within a column, aiding the Cost-Based Optimizer (CBO) in selecting the most efficient execution plan. When data in a column is unevenly distributed, or “skewed,” basic statistics alone may not give the optimizer enough information to […]
MAX_DATAPUMP_JOBS_PER_PDB parameter controls the maximum number of concurrent Oracle Data Pump jobs allowed per Pluggable Database (PDB), enabling database administrators (DBAs) to better manage and govern Oracle Data Pump resource usage. Key Details Resource Utilization The primary resource Oracle Data Pump utilizes is the Shared Pool within the System Global Area (SGA) of the database. […]