PostgreSQL

Identity Columns and Sequences

Use PostgreSQL identity columns and sequences for generated keys while distinguishing default generation, explicit values, transaction behavior, and uniqueness constraints.

Intermediate14 min read

PostgreSQL lessonRelational data foundationsProve

TIMED ASSESSMENT

Identity Columns and Sequences

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.