SQL Fundamentals

Aggregate Functions

Use aggregate functions to summarize row sets while choosing the correct input, understanding null handling, and validating totals against a bounded sample.

Beginner14 min read

SQL Fundamentals lessonRelational data foundationsProve

TIMED ASSESSMENT

Aggregate Functions

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.