What happens if a column is checked against NOT IN (1, 2, NULL)?

It behaves normally, ignoring the NULL.

It will always evaluate to empty/no rows.

It throws a syntax compilation error.

It matches rows where column is NULL.

easy #sql #postgresql #retail

QUESTION 01 OF 02

IN, NOT IN, and BETWEEN

Quiz for lesson: IN, NOT IN, and BETWEEN

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Is the BETWEEN operator inclusive or exclusive of its boundary values?

About this Quiz

This interactive assessment is designed to test your understanding of IN, NOT IN, and BETWEEN. 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.