Problem Age Groups
Write down a query that creates 7 different groups based on their age.
Age groups should be as follows: [0-10] [11-20] [21-30] [31-40] [41-50] [51-60] [61+]
Това измислих, но очевидно няма как да работи:
SELECT CASE
WHEN [Age] BETWEEN 0 AND 10 THEN '[0-10]'
WHEN [Age] BETWEEN 11 AND 20 THEN '[11-20]'
WHEN [Age] BETWEEN 21 AND 30 THEN '[21-30]'
WHEN [Age] BETWEEN 31 AND 40 THEN '[31-40]'
WHEN [Age] BETWEEN 41 AND 50 THEN '[41-50]'
WHEN [Age] BETWEEN 51 AND 60 THEN '[51-60]'
ELSE '[61+]'
END AS [AgeGroup],
COUNT(Age) AS WizardCount
FROM WizzardDeposits
GROUP BY [AgeGroup]
В друга тема същото е избрано за най-добър отговор https://softuni.bg/forum/12050/db-fundamentals-data-aggregation-problem-9-age-groups