SQL for Java Devs · interview question
What should determine whether you add an index to a table?
Multiple choiceMediumchapter-8-curatedpremiumsql-for-java-devsindexes
Answer and explanation
Correct answer
D. The dominant filter, join, and sort patterns used by real queries
Why
Index design should follow how the application actually queries the table. Good indexes support the filters and joins that dominate production workloads instead of being added generically.
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