SQL | Archived exercise | Show years elapsed for each event

This exercise is provided to allow potential course delegates to choose the correct Wise Owl Microsoft training course, and may not be reproduced in whole or in part in any format without the prior written consent of Wise Owl.

The answer to the exercise will be included and explained if you attend the relevant Wise Owl course (sadly, only in the UK for now).

Software ==> SQL  (198 exercises)
Version ==> Any version of SQL Server
Topic ==> Archived  (70 exercises)
Level ==> Relatively easy
Before you can do this exercise, you'll need to download and unzip this file (if you have any problems doing this, click here for help).

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If you haven't already got it set up in SQL server, restore the Historical Events database from the above folder.

Create the following query, using:

  • CONVERT to convert the date of each event to a more readable format; and
  • DATEDIFF to show the difference between each event's date and today in years

Your final output should look like this (sorted in reverse date order):

SQL exercise - Calculations using dates (image 1)

The DateDiff syntax is: DateDiff(year,EarlierDate,LaterDate)

Save this query as Am I really that old, then close it down.

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