In PostgreSQL, how can you calculate product profits using columns unit_price and cost_price?

SELECT unit_price - cost_price FROM products

SELECT SUM(unit_price, cost_price) FROM products

SELECT unit_price DIV cost_price FROM products

SELECT unit_price + cost_price / 2 FROM products

easy #sql #postgresql #retail

QUESTION 01 OF 02

Column Expressions & Arithmetic

Quiz for lesson: Column Expressions & Arithmetic

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What is the result of the query SELECT 15 / NULL?

About this Quiz

This interactive assessment is designed to test your understanding of Column Expressions & Arithmetic. 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.
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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.