Oracle DBA

Preconditions & Assumptions High-level flow Detailed step-by-step (copy-paste friendly) Source host = orcl.localdomain.com (ORCL)Target host = clone.localdomain.com (CLONE)Modify all paths, hostnames, SIDs and environment variables to match your infrastructure. SOURCE: copy password file and create PFILE TARGET: prepare directories, pfile and environment NETWORK: listener and tnsnames configuration listener.ora (on source and target — adjust HOST): […]

The role of the Database Administrator (DBA) has always been mission-critical. From ensuring uptime to safeguarding data integrity, DBAs have been the backbone of enterprise IT for decades. But as Artificial Intelligence (AI) advances, it is no longer just applications and business processes that benefit — the DBA role itself is being reshaped. Here are […]

In the ever-changing landscape of database administration, a catastrophic loss of all datafiles is one of the most alarming situations an Oracle DBA can face.However, when equipped with valid backups and the right strategy, even this scenario can be handled gracefully using Oracle RMAN (Recovery Manager). In this article, we’ll discuss how to perform a […]

This procedural article describes configuring a Snapshot Standby (Data Guard) and exercising the convert-to-snapshot / convert-back lifecycle. Follow the steps precisely and validate each checkpoint in your environment before proceeding. Step 1 — Verify roles on Primary and Standby On Primary: Sample output (Primary): On Standby: Sample output (Standby): Step 2 — Confirm archived log […]