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08.28.2008 at 11:58PM PDT, ID: 23688064
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9.7

SQL Server SELECT - how to get number of rows returned by a nested Query

Asked by ccravenbartle in SQL Server 2005, SQL Query Syntax

I have to write an SQL Stored Procedure that takes an Account Name as a parameter and returns:
0 if no match is found,
the Account Number if a single match is found,
value -1 (to indicate a consistency error) if more than 1 match is found.

The AccountName is held in several different fields within the record so I have to perform a nested query to produce the list of account numbers.  What I want to do is something like this :

IF Count
(
SELECT DISTINCT AccountNo FROM AccountMaster WHERE AccountName1 = @Name
UNION
SELECT DISTINCT AccountNo FROM AccountMaster WHERE AccountName2 = @Name
UNION
SELECT DISTINCT AccountNo FROM AccountMaster WHERE AccountName3 = @Name
)
= 0
Return 0
else if Count = 1
 Return AccountNo
ELSE
Return -1

I know the syntax is all wrong but I can't work out how to do this.






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[+][-]08.29.2008 at 12:05AM PDT, ID: 22343053

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[+][-]08.29.2008 at 12:05AM PDT, ID: 22343054

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[+][-]08.29.2008 at 12:10AM PDT, ID: 22343067

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Zones: SQL Server 2005, SQL Query Syntax
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Solution Provided By: BrandonGalderisi
Participating Experts: 3
Solution Grade: A
 
 
[+][-]08.29.2008 at 12:10AM PDT, ID: 22343070

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