Transportable Tablespaces (TTS) is a powerful Oracle feature that allows you to move entire tablespaces (or sets of tablespaces) between databases by physically copying datafiles plus minimal metadata, instead of unloading and reloading all the data. Because you’re moving data files rather than rows, TTS operations can be vastly faster than conventional export/import. In this […]
In Oracle Database, temporary tablespaces play a critical role during SQL execution. Whenever a query involves sorting, joining, aggregation, index creation, or operations that cannot be handled entirely in memory (PGA), Oracle uses temporary tablespaces to store intermediate results. As a DBA, understanding how to monitor and troubleshoot temporary tablespace usage is essential to avoid […]
Sequences are a fundamental feature in Oracle databases, commonly used for generating unique identifiers such as primary keys. However, in a Real Application Clusters (RAC) environment, sequence behavior introduces certain performance and ordering challenges that require careful configuration. This blog provides insights into sequence configurations, gaps, and their performance impact in a RAC setup. 1. […]
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 […]