Exercise: Cursor - build up list of people names per course

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 Wise Owl course listed below!

Category ==> SQL  (115 exercises)
Topic ==> Cursors  (3 exercises)
Level ==> Harder than average
Course ==> Advanced SQL
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 done so, run the stored procedure in the above folder to generate a database of training courses and delegates.

Create a stored procedure called spNames which takes a ScheduleId as input, and outputs a comma-delimited list of the people on this course - for example:

SQL exercise - Cursors (image 1)

The output for schedule number 31, for example

Now write a query which:

  • Creates a temporary table called #Schedules to hold the schedule id, start date, course name and list of people for each course of interest
  • Uses a cursor to loop through the list of courses containing SQL in the name, calling the spNames procedure for each and adding one row to the #Schedules table
  • Uses a SELECT statement  to output the  rows from the #Schedules table

The final output from running this query should be something like this:

SQL exercise - Cursors (image 2)

The first few courses you should see listed

Optionally, save your work as List person names.sql, then close it down.

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