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1. www.w3schools.com › sql › sql_exercisesSQL Exercises - W3Schools

   www.w3schools.com › sql › sql_exercises

   • Αποθηκευμένο αντίγραφο

   Get certified by completing the SQL course. Well organized and easy to understand Web building tutorials with lots of examples of how to use HTML, CSS, JavaScript, SQL, Python, PHP, Bootstrap, Java, XML and more.

   • SQL Certificate

     W3Schools has over two decades of experience with teaching...

   • SQL Bootcamp

     SQL. How to store, change and retrieve data in databases...

2. www.hackerrank.com › domains › sqlSolve SQL | HackerRank

   www.hackerrank.com › domains › sql

   Join over 23 million developers in solving code challenges on HackerRank, one of the best ways to prepare for programming interviews.

3. www.sql-easy.comSQL Easy: The Best Way to Learn SQL (It's FREE!)

   www.sql-easy.com

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   Follow this interactive online SQL training for beginners (and for FREE) and in no time you will learn all the necessary knowledge to start working and to be confident to say you know SQL in a job interview.

4. www.geeksforgeeks.org › sql-exercisesSQL Practice with Solution for Beginners and Experienced -...

   www.geeksforgeeks.org › sql-exercises

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   22 Οκτ 2024 · Regular practice helps you get better at using SQL and boosts your confidence in handling different database tasks. So, in this free SQL exercises page, we'll cover a series of SQL practice exercises covering a wide range of topics suitable for beginners, intermediate, and advanced SQL learners.

5. www.sql-practice.comLearn SQL - Online SQL Terminal - Practice SQL Querys

   www.sql-practice.com

   Practice SQL querys with an online terminal. Solve SQL query questions using a practice database. Learn and improve your SQL skills.

6. www.freecodecamp.org › news › learn-sql-free-relational-database-courses-for-beginnersLearn SQL – Free Relational Database Courses for Beginners

   www.freecodecamp.org › news › learn-sql-free-relational-database-courses-for-beginners

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   9 Δεκ 2021 · SQL (Structured Query Language) is a popular programming language used for relational databases. And there are many good free resources you can use to start learning it. In this article, I will list out 8 free online beginner-friendly resources to learn SQL, PostgreSQL, and MySQL.

7. www.codecademy.com › learn › leaLearn SQL - Codecademy

   www.codecademy.com › learn › lea

   • Αποθηκευμένο αντίγραφο

   Learn how to use SQL to access, create, and update data stored in a database. Learn powerful functions for performing complex database operations with ease. Earn a certificate of completion and showcase your accomplishment on your resume or LinkedIn.