SQL for Java Devs · interview question
How does the presence of an index affect INSERT operations on a database table?
Multiple choiceMediumchapter-8-curatedpremiumsql-for-java-devsindexes
Answer and explanation
Correct answer
D. Slows down INSERT operations
Why
Indexes need to be updated every time a row is inserted, which adds overhead to the INSERT operation, thus slowing it down compared to a table without indexes.
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