SQL for Java Devs · interview question
Which of the following SQL statements would be most improved by adding an index to the 'product_id' column of an 'orders' table?
Multiple choiceMediumchapter-8-curatedpremiumsql-for-java-devsindexes
Answer and explanation
Correct answer
C. SELECT * FROM orders WHERE product_id = 123
Why
An index on the 'product_id' column would significantly enhance the performance of SELECT queries that filter based on that column, as it allows the database to quickly locate the relevant rows.
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