SQL | Archived exercise | Accumulate names of course delegates

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.

You can learn how to do this exercise on the relevant Wise Owl classroom training course (sadly for the moment only in the UK).

Software ==> SQL  (198 exercises)
Version ==> Any version of SQL Server
Topic ==> Archived  (70 exercises)
Level ==> Harder than average
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).

You need a minimum screen resolution of about 700 pixels width to see our exercises. This is because they contain diagrams and tables which would not be viewable easily on a mobile phone or small laptop. Please use a larger tablet, notebook or desktop computer, or change your screen resolution settings.

If you haven't already done so, run the stored procedure in the above folder to generate a database of training courses and delegates.  This exercise uses the following tables:

SQL exercise - Variables (image 1)

You'll need to join these tables

Create two variables as shown below:

SQL exercise - Variables (image 2)

These are only suggested variable names!

Write code to set the variable @CourseName to hold the name of schedule number 1 (you should find it set to VISUAL C# 2005 WINDOWS FORMS DELEGATES).

Write code to set the variable @People to hold the accumulated names of the delegates on this course, and then print out what you've accumulated:

SQL exercise - Variables (image 3)

The output you should get

You can use char(13) + char(10) to throw a carriage return.

Optionally, save this query as Display accumulated delegate names.sql, 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.
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