Exercise to practice SQL

This repository contains exercises from several resources to improve your SQL abilities. In the examples, you will find a brief description and different ways to resolve them.

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HackerRank

The exercises in this section were recovered from the HackerRank platform in the SQL section.

01 Basic Select

• Weather Observation Station 5
• Weather Observation Station 6
• Weather Observation Station 7
• Weather Observation Station 8
• Weather Observation Station 9
• Weather Observation Station 10
• Weather Observation Station 11
• Weather Observation Station 12
• Higher Than 75 Marks
• Employee Names
• Employee Salaries

O2 Advanced Select

• Type of Triangle
• The PADS
• Occupations
• Binary Tree Nodes
• New Companies