SQL Fundamentals

Expressions, Aliases, and String Operations

Build readable calculated columns with expressions, aliases, string operations, type awareness, and output checks that preserve the underlying data.

Beginner14 min read

SQL Fundamentals lessonRelational data foundationsProve

TIMED ASSESSMENT

Expressions, Aliases, and String Operations

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.