1. SQLZOO SQL Tutorial
Link -> https://sqlzoo.net/wiki/SQL_Tutorial
SQLZOO provides a comprehensive SQL tutorial that caters to learners at different levels. Here’s what you’ll find:
- SELECT Basics: Start with simple queries to get a grasp of the SELECT statement.
- Pattern Matching Queries: Learn how to use pattern matching in your SQL queries.
- JOIN Operations: Understand how to join tables and retrieve meaningful data.
- Aggregate Functions: Explore SUM, COUNT, and other aggregate functions.
Whether you’re a beginner or want to brush up on your SQL skills, SQLZOO has you covered. Check out the tutorial in your preferred language: English, Japanese, or Chinese.
2. SQL Practice
Link -> https://www.sql-practice.com/
Ready to put your SQL knowledge to the test? Head over to SQL Practice. Here’s what you can do:
- Practice Queries: Use the online terminal to solve SQL query questions.
- Learn by Doing: Work with a practice database and improve your SQL skills.
- Challenge Yourself: Tackle real-world scenarios and see how well you can write SQL queries.
3. SQL Fiddle
Link -> https://sqlfiddle.com/
SQL Fiddle is your playground for SQL experimentation. Here’s why you’ll love it:
- Write, Edit, Execute: Craft SQL queries directly in your browser.
- Multiple SQL Languages: Choose from MySQL, PostgreSQL, and more.
- Learn by Example: Explore existing fiddles or create your own.
