Oracle Memory Architecture Q&A – Part 1

Oracle DBA Interview Q&A – Memory Architecture (SGA, PGA, AMM, Shared Pool, Redo/Buffer Cache, 19c/23ai)

This guide contains 120+ carefully crafted Oracle DBA Interview Q&A focused on Memory Architecture. It’s designed for freshers and experienced DBAs, covering theory, practical scenarios, analogies, and real interview-style answers.

👉 What you’ll get in Part 1:

• Core concepts: SGA vs PGA, Instance vs Database, Sessions vs Connections
• Deep dive: AMM vs ASMM, Shared Pool internals, Large Pool, Redo/Buffer Cache
• Advanced 19c/23ai features: In-Memory Column Store, Memoptimized Rowstore, PDB memory management
• Scenario-based Q&A: Troubleshooting parsing, redo bottlenecks, checkpoint issues
• 60+ ready-to-use answers with analogies for interview success

This is Part 1 of the Oracle DBA Interview Series. More chapters (Storage, Performance, ASM, etc.) are coming soon.

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