An SQL Profile in Oracle is a set of optimizer directives created to improve the execution plan for a specific SQL statement. It contains statistical information or corrections to cardinality and cost estimates, allowing the optimizer to generate a more efficient plan without changing the SQL code itself. SQL Profiles are typically generated by the […]
The following are some of the key enhancements to the Oracle Database memory architecture in 19c over 12c: In addition to these specific enhancements, Oracle Database 19c also includes a number of general improvements to the memory management architecture. For example, the database now uses a more efficient memory allocation algorithm and improved memory reclamation […]
In Oracle Data Guard, the Observer process is a component of the Fast-Start Failover (FSFO) feature, which automates the failover process in a Data Guard configuration. The Observer continuously monitors both the primary and standby databases, ensuring high availability by automatically triggering a failover to the standby database if the primary database becomes unavailable. Here’s […]
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 […]