A staged startup turns one large operation into three observable steps. Start the instance, mount the database, then open it. After eac...
Read the full lessonOctober 06, 2026
Oracle DBA Lesson 7C — Compare V$SQL Observations for Cursor Reuse
After this lesson, you can identify a cached executable child, compare two observations of its activity, and select a useful next inves...
Read the full lessonOctober 04, 2026
Oracle DBA Lesson 58A — Choose How to Grow a Datafile
When a permanent segment needs its next extent, Oracle needs allocatable space in that tablespace. A DBA can increase an existing file...
Read the full lesson
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By Gowthami | apps-dba.com | Oracle Administration Series A common issue after Oracle Database 19c patching is a Pluggable Database (PDB) o...
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By Gowthami | apps-dba.com | Oracle Performance Series Oracle Parallel Query (PQ) allows a single SQL statement to be executed by multiple ...
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By Gowthami | apps-dba.com | Oracle Exadata Series If you work with Oracle Exadata, one of the most transformative features you will encou...
Oracle DBA Lesson 22 Part 2 — Start a Database in Stages
A staged startup turns one large operation into three observable steps. Start the instance, mount the database, then open it. After eac...
