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Software ==>	SQL (203 exercises)
Topic ==>	Table-valued functions (8 exercises)
Level ==>	Harder than average
Subject ==>	SQL training

Use a MSTVF to show categories, countries and continents that contain a given vowel

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).

Create a function which takes in a vowel and returns a table containing all of the categories, countries and continents which contain that vowel:

The top 4 results when you run your function using the vowel I as input, for example.

The function will need one parameter to take in the vowel and a table variable to store the output from each separate select.

CREATE FUNCTION NameGoesHere

(@Para1 datatype)

RETURNS @TableName TABLE

(Column 1 datatype

,Column 2 datatype)

BEGIN

INSERT INTO @TableName

--SELECTS GO IN HERE

INSERT INTO @TableName

--SELECTS GO IN HERE

INSERT INTO @TableName

--SELECTS GO IN HERE

RETURN

END

If you call your function once for each vowel within a SELECT statement, you could display the results for each vowel:

A shock result - E wasn't the most common vowel.

Optionally save this as Vowel please bob.sql and 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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SQL EXERCISES

Use a MSTVF to show categories, countries and continents that contain a given vowel

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