Creating several groups with CASE
In this exercise, you will write a CASE statement to group the values in the DurationSeconds into 5 groups based on the following ranges:
| DurationSeconds | SecondGroup |
|---|---|
| <= 120 | 1 |
| > 120 and <= 600 | 2 |
| > 600 and <= 1200 | 3 |
| > 1201 and <= 5000 | 4 |
| For all other values | 5 |
This exercise is part of the course
Intermediate SQL Server
Exercise instructions
Create a new column, SecondGroup, that uses the values in the DurationSeconds column based on the ranges mentioned above.
Hands-on interactive exercise
Have a go at this exercise by completing this sample code.
-- Complete the syntax for cutting the duration into different cases
SELECT DurationSeconds,
-- Start with the 2 TSQL keywords, and after the condition a TSQL word and a value
___ ___ (DurationSeconds <= 120) ___ ___
-- The pattern repeats with the same keyword and after the condition the same word and next value
___ (DurationSeconds > 120 AND DurationSeconds <= 600) ___ ___
-- Use the same syntax here
___ (DurationSeconds > 601 AND DurationSeconds <= 1200) ___ ___
-- Use the same syntax here
___ (DurationSeconds > 1201 AND DurationSeconds <= 5000) ___ ___
-- Specify a value
ELSE ___
END AS SecondGroup
FROM Incidents