Data Aggregation - Exercise

Contest details

Data Aggregation - Exercise
Allowed languages: | SQL Server prepare DB & run queries | MySQL prepare DB & run queries |
Contest participants: 99
Practice participants: 339

Problems

01. Records’ Count

02. Longest Magic Wand

03. Longest Magic Wand per Deposit Groups

04. Smallest Deposit Group per Magic Wand Size

05. Deposits Sum

06. Deposits Sum for Ollivander Family

07. Deposits Filter

08. Deposit Charge

09. Age Groups

10. First Letter

11. Average Interest

12. Rich Wizard, Poor Wizard

13. Employees Minimum Salaries

14. Employees Average Salaries

15. Employees Maximum Salaries

16. Employees Count Salaries

17. 3rd Highest Salary

18. Salary Challenge

19. Departments Total Salaries


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