Exercise: A multi statement table valued function to count vowels

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Category ==> SQL  (192 exercises)
Topic ==> Table-valued functions  (6 exercises)
Level ==> Harder than average
Course ==> Advanced SQL
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  3. Execute this script.

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

Table valued function returning vowels

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)

AS

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:

Vowel results

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

Optionally save this as Vowel please bob.sql and close it down.

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