SQL Fundamentals

Group Results with GROUP BY and HAVING

Group rows by meaningful keys, aggregate within each group, filter summaries with HAVING, and verify that detail-level and group-level predicates stay separate.

Beginner14 min read

SQL Fundamentals lessonRelational data foundationsProve

TIMED ASSESSMENT

Group Results with GROUP BY and HAVING

Questions and answer choices are randomized for every attempt. Everything needed to answer is shown on screen; no paper, calculator, terminal, server, or external test is required. Each answer is marked Correct or Incorrect, then locked until the final review.

15 questions20 min timer12/15 to pass

Explanations are hidden during the test. A full review is available only after submission.