Results for "databases"

10 Best Free Websites to Learn Coding in 2026

Discover the 10 best free websites to learn coding in 2024. From HTML to Python to data science — all completely free with certificates.

SQL Basics: The Queries Every Beginner Should Actually Know

Ten queries that cover most of what you'll use day to day, with runnable examples

Ten SQL queries that cover most day-to-day database work, with runnable examples — SELECT, filtering, joins, aggregation, and the mistakes that trip up beginners.