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 Substring / Distinct?
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Crima
Starting Member

USA
17 Posts

Posted - 11/14/2012 :  23:48:31  Show Profile  Reply with Quote
Hi I am trying to figure out this problem and it has me stumped. That last part
"Where the first letter of the vendor name is N, O or P" Has me confused.
I thought of using SELECT DISTINCT or using a Substring, can I get some insight?

Problem:
Write a CREATE VIEW statement that defines a view named InvoiceBasic that returns
three columns: VendorName, InvoiceNumber, and InvoiceTotal. Then, write a SELECT
statement that returns all of the columns in the view, sorted by VendorName, where the
first letter of the vendor name is N, O, or P.

My Code:

CREATE VIEW InvoiceBasic
--RETURN VendorName, InvoiceNumber, InvoiceTotal
SELECT VendorName, InvoiceNumber, InvoiceTotal
WHERE SUBSTRING(N, O, P)
ORDER BY VendorName


A witty student

Lumbago
Norsk Yak Master

Norway
3271 Posts

Posted - 11/15/2012 :  03:33:45  Show Profile  Reply with Quote
Look up the syntax of substring (http://msdn.microsoft.com/en-us/library/ms187748.aspx). The Start and the length parameters of the function are in this case both 1. Then look up IN (http://msdn.microsoft.com/en-us/library/ms177682.aspx). Here's a hint for the final syntax: The substring of vendorname is in you collection of letters and each letter should be surrounded by single quotes.

- Lumbago
My blog-> http://thefirstsql.com

Edited by - Lumbago on 11/15/2012 03:34:27
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visakh16
Very Important crosS Applying yaK Herder

India
52326 Posts

Posted - 11/15/2012 :  05:23:17  Show Profile  Reply with Quote
you could just use

WHERE VendorName LIKE '[NOP]%'


------------------------------------------------------------------------------------------------------
SQL Server MVP
http://visakhm.blogspot.com/

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