When is a join often preferred over a subquery?

Mediumsqljoins-vs-subqueries

When you need to retrieve columns from both tables in the resultCorrect answer
When you never need any data from either table
Joins can never be used alongside subqueries
When the tables involved have no relationship at all

Show answer & explanation

Correct answer: A. When you need to retrieve columns from both tables in the result

Explanation

Joins are often preferred when you need to display columns from both tables, while subqueries are often clearer for filtering or computing a value alone.

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When is a join often preferred over a subquery?

Mediumsqljoins-vs-subqueries

When you need to retrieve columns from both tables in the resultCorrect answer
When you never need any data from either table
Joins can never be used alongside subqueries
When the tables involved have no relationship at all

Show answer & explanation

Correct answer: A. When you need to retrieve columns from both tables in the result

Explanation

Joins are often preferred when you need to display columns from both tables, while subqueries are often clearer for filtering or computing a value alone.

Practise 3 questions on this topic

Take SQL Subqueries — Timed Test (3 questions) — scored instantly, explanation for every question, no login.

Start the test

When is a join often preferred over a subquery?

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When is a join often preferred over a subquery?

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