SQL | Aggregation and grouping exercise | Show the total number of events for each century

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Software ==> SQL  (192 exercises)
Version ==> Any version of SQL Server
Topic ==> Aggregation and grouping  (8 exercises)
Level ==> Harder than average
Course ==> Introduction to SQL
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  1. Go into SQL Server Management Studio;
  2. Open the SQL file you've just unzipped (you can press CTRL + O to do this); then
  3. Execute this script.

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Create a query to show the following information:

Events by century

You'll need to calculate the century for each event date, and group by this.

 

To get the top row giving the grand total in the same query, encase your GROUP BY expression in the CUBE function.

Save this query as Passing of the centuries, then close it down.

This page has 1 thread Add post
linjom   Reply to linjomReply
23 Apr 18 at 07:33

I am getting different result.. 

NULL    459
18th Century    4
19th Century    14
20th Century    396
21st Century    45

for both rollup and cube.. is this right? Final total same as site.

 

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