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Software ==>	SQL (129 exercises)
Topic ==>	Table-valued functions (6 exercises)
Level ==>	Average difficulty
Subject ==>	SQL training

Create an inline tabled valued function taking two parameters

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.

Before you can do this exercise, you'll need to download and unzip this file. Once you've done this:

Go into SQL Server Management Studio;
Open the SQL file you've just unzipped (you can press CTRL + O to do this); then
Execute this script.

This will generate the database that you'll need to use in order to do this exercise (note that the database and script are only to be used for exercises published on this website, and may not be reused or distributed in any form without the prior written permission of Wise Owl).

The aim of this exercise is to create a function that returns summary information about a given continent during a chosen month. For example, you should be able to run this command:

SELECT * FROM dbo.fnContinentSummary('Europe','April')

Passing in Europe and April like this should give the following results:

April unsurprisingly is an important month.

To do this, you will need to join the tblCategory, tblEvent, tblCountry and tblContinent tables together, and select COUNT(DISTINCT()) from each table. To help you, here's what your function code should look like:

CREATE FUNCTION ChooseName

(@Para1 DataType, @Para2 DataType)

RETURNS Table

RETURN

--Select statement that will form the table

Optionally save your query as Counting By Continents.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.

You can find other training resources for the subject of this exercise here:

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EXERCISE TOPIC

SQL EXERCISES

SQL EXERCISES

Create an inline tabled valued function taking two parameters

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