SQL | Calculations exercise | Use a CASE statement to divide countries into groups

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Software ==> SQL  (198 exercises)
Version ==> Any version of SQL Server
Topic ==> Calculations  (7 exercises)
Level ==> Average difficulty
Subject ==> SQL training
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Write a query to divide countries into these groups:

Continent id Belongs to Actual continent (for interest)
1 or 3 Eurasia Europe or Asia
5 or 6 Americas North and South America
2 or 4 Somewhere hot Africa and Australasia
7 Somewhere cold Antarctica
Otherwise Somewhere else International

Your query (based only on the tblCountry table) should show the following results:

Countries in order

The first few countries, sorted in reverse alphabetical order by your new column.

 

Save this query as Continental Drift, then close it down.

You can unzip this file to see the answers to this exercise, although please remember this is for your personal use only.
This page has 2 threads Add post
Aravindh_sql   Reply to Aravindh_sqlReply
26 May 22 at 18:27

SELECT CountryName ,
CASE
WHEN (ContinentID = 1 or ContinentID =  3 ) THEN 'Eurasia'

WHEN (ContinentID = 5 or ContinentID =  6 ) THEN 'Americas'
WHEN (ContinentID = 2 or ContinentID =  4 ) THEN 'Somewhere hot'
WHEN (ContinentID = 7 ) THEN 'Somewhere Cold'
ELSE 'Somewhere else'


END AS CountryLocation
FROM tblcountry
ORDER BY CountryLocation DESC

esottilaro   Reply to esottilaroReply
25 Sep 19 at 15:48

Does anyone have the script for Continental Drift?

rasim.setia   Reply to rasim.setiaReply
06 Oct 19 at 19:19

-- This should work---

 

SELECT [CountryName]
      ,CASE
      WHEN [ContinentID] in ('1','3') then 'Eurasia'
      When [ContinentID] in ('5','6') then 'Americas'
      When [ContinentID] in ('2','4') then 'Somewhere hot'
      When [ContinentID] = 7 then 'Somewhere cold'
      ELSE 'Somewhere else' END as 'CountryLocation'
  FROM [WorldEvents].[dbo].[tblCountry]
  order by CountryLocation desc

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