SQL for Java Devs · interview question
Why might a LEFT JOIN be more beneficial compared to an INNER JOIN in certain scenarios?
Multiple choiceHardchapter-8-curatedpremiumsql-for-java-devsjoins
Answer and explanation
Correct answer
D. It retains all rows from the left table even if there are no matches in the right table.
Why
A LEFT JOIN retrieves all rows from the left table and the matched rows from the right table, or NULLs where there is no match, which is useful when you need all entries from the first table regardless of matches.
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