Exercise: Create a function showing difference in lengths

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Category ==> SQL  (115 exercises)
Topic ==> Overview of functions  (4 exercises)
Level ==> Average difficulty
Course ==> Introduction to SQL
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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.

Import the query called Extra text function.  If you try running this query, it falls over - that's because the fnExtraText function doesn't yet exist!

SQL exercise - Scalar functions (image 1)

This query should consider the extent to which the description of any event is longer than its short name

Create the function (and test that it works), then save the script to create it as CreatExtra text function.

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