SQL for Java Devs · interview question
In which scenario is it beneficial to use an index on the 'email' column of a 'customers' table?
Multiple choiceMediumchapter-8-curatedpremiumsql-for-java-devsindexes
Answer and explanation
Correct answer
C. When performing frequent searches by email
Why
Indexes are particularly useful for speeding up search operations. If queries frequently search by the 'email' column, adding an index can significantly improve performance.
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