SQL - Fundamentals 4

The goal of this quest series is to improve your SQL skills
Goals
- Improve your SQL skills
Codewars Katas
You need to resolve this three Codewars Katas
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Collect Tuition (SQL for Beginners #4)
codewars.com
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Easy SQL: LowerCase
codewars.com
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Easy SQL - Ordering
codewars.com
Challenge
Codewars Katas
Once you have completed the katas, you can validate this quest yourself.