WHERE Clause & Filtering

ORDER BY & Sorting

LIMIT & OFFSET

INNER JOIN Deep Dive

Select employee names and salaries from employees table

Calculate annual salary (monthly * 12) with alias

Find unique departments in company

Create full name by concatenating first and last name

Select top 10 highest paid employees (use LIMIT)

Implement API pagination: SELECT id, name, created_at FROM repos WHERE user_id = ? ORDER BY created_at DESC LIMIT 30 OFFSET ?

What is the difference between SELECT * and listing specific columns?

Explain how DISTINCT works and when to use it

What are column aliases and why are they useful?

How does SELECT work with expressions and calculations?

SQL SELECT Statement Guide

Column Aliases Best Practices

DISTINCT vs GROUP BY Performance