Oracle DBA Lesson 15 — Choose Between Shared and Distributed Data

A company that serves several regions still has to decide what stays shared and what gets distributed. RAC, PDB consolidation, and shar...

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Oracle DBA Lesson 14B — Recognize an In-Doubt Distributed Transaction

Oracle DBA · Lesson 14B Oracle DBA Lesson 14B — Recognize an In-Doubt Distributed Transaction A change that spans databases must...

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Oracle DBA Lesson 14A — What Remains After a Session Fails

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Oracle DBA Lesson 13B — Find an Archive Destination Problem

Oracle DBA · Lesson 13B Oracle DBA Lesson 13B — Find an Archive Destination Problem A data-file backup captures one point in ti...

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Oracle DBA Lesson 13A — Follow an Online Redo Group Through Reuse

Oracle DBA · Lesson 13A Oracle DBA Lesson 13A — Follow an Online Redo Group Through Reuse Online redo groups rotate in a circle...

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Oracle DBA Lesson 12 — How Checkpoints Bound Instance Recovery

Oracle DBA · Lesson 12 Oracle DBA Lesson 12 — How Checkpoints Bound Instance Recovery A checkpoint is not “flush everything now...

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