Why can't you use an aggregate function (e.g. SUM) inside the WHERE clause?

WHERE does not support mathematical operators.

WHERE evaluates rows individually before groups are formed by GROUP BY.

WHERE clauses are restricted to indexing keys.

Aggregates are restricted to SELECT.

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QUESTION 01 OF 02

Execution Phases: FROM to HAVING

Quiz for lesson: Execution Phases: FROM to HAVING

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In the logical execution order, does HAVING run before or after GROUP BY?

About this Quiz

This interactive assessment is designed to test your understanding of Execution Phases: FROM to HAVING. Whether you are a beginner looking to grasp the basics or an experienced professional aiming to refine your skills, quizzes are an excellent way to validate your knowledge and identify areas for improvement.

Instructions

Read each question carefully before answering.
Some questions may have multiple correct answers.
There is no time limit, so take your time to think.
You will receive immediate feedback after submission.

Learning Outcomes

Self-assess your current skill level.
Reinforce key concepts through active recall.
Identify knowledge gaps to focus your study.
Gain confidence in your technical expertise.
Reinforce memory and recall.