SQL | Dynamic SQL exercise | Use dynamic SQL to create a procedure with varying sort order

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The answer to the exercise will be included and explained if you attend one of more of the courses listed below!

Software ==> SQL  (198 exercises)
Version ==> Any version of SQL Server
Topic ==> Dynamic SQL  (4 exercises)
Level ==> Average difficulty
Courses ==> Fast-track SQL  /  Advanced SQL
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First (if you haven't already done so) run the script shown above to generate the Doctor Who training database.

Create a procedure called spEpisodesSorted which takes two parameters:

Parameter What it does Default value
@SortColumn The name of the column to sort by EpisodeId
@SortOrder The order to sort by (ASC or DESC) ASC

Declare and build up a string variable called @sql which contains a SELECT command based on the value of these two parameters, and execute it like this:

-- run command contained in variable

EXEC(@sql)

You should now be able to list the Doctor Who episodes in different orders!  For example:

-- show episodes in default order

spEpisodesSorted

GO

-- show episodes in reverse title order

spEpisodesSorted 'Title', 'DESC'

When you've got this working, optionally save the query as Allsorts.sql, then close it down. 

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