PRACTICE SQL

https://www.sql-practice.com

https://www.w3schools.com/sql/sql_exercises

https://www.programiz.com/sql/online-compiler

https://sqlzoo.net https://www.hackerrank.com/domains/sql https://www.testdome.com/tests/sql-online-test

https://www.jdoodle.com/execute-sql-online

https://www.w3resource.com/sql-exercises

https://livesql.oracle.com

https://www.wiseowl.co.uk/sql/exercises/standard

https://www.sql-easy.com https://learnsql.com/blog/ways-to-practice-sql-online https://www.databasestar.com/sql-practice

https://medium.com/javarevisited/8-best-resources-...

https://learnsql.com/blog/advanced-sql-practice-on...

https://www.codingninjas.com/...

https://www.codecademy.com/learn/learn-sql

https://www.sqlshack.com/learn-sql-sql-query-practice

https://www.mycompiler.io/online-sql-editor

https://ramkedem.com/practice-sql-online

https://sqlpad.io https://sqlpad.io/playground

https://sqliteonline.com https://www.tutorialspoint.com/execute_sql_online