Understanding Oracle's Cost-Based Optimizer
How Oracle's CBO chooses execution plans, why it sometimes gets it wrong, and the practical levers — statistics, histograms, hints, baselines — for fixing bad plans.
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Category
Performance & Tuning
2 posts in this category.
Oracle Exadata: What Makes It Actually Fast
A practical look at the engineering behind Exadata — Smart Scan, Hybrid Columnar Compression, Smart Flash Cache, RDMA — and the workloads where it earns its price.
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