What trade-offs come with Query Execution Plans?

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Quick interview answer

Pros: Visual plan reveals missing indexes and bad estimates. Cons: Plans vary by engine; hints are last resort.

Detailed answer

Trade-offs for Query Execution Plans: Pros: Visual plan reveals missing indexes and bad estimates. Cons: Plans vary by engine; hints are last resort. Decision rule: choose Query Execution Plans when the benefits outweigh operational cost for your SLO. Parent context: Use Query Execution Plans as the core idea. Example shape: Sudden seq scan on million-row table traced to outdated stats after bulk load..

Full explanation

Strong answers state both sides and when you would pick an alternative. Pros: Visual plan reveals missing indexes and bad estimates. Cons: Plans vary by engine; hints are last resort.

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Parent context — Query Execution Plans

Use Query Execution Plans as the core idea. Example shape: Sudden seq scan on million-row table traced to outdated stats after bulk load..

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