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SQL Return first four values from delimited string

Posted on 2016-07-22
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Last Modified: 2016-07-22
I'm a bit stuck
trying to return the first four values of string of varying length
Substrings is not consistent and parsename has a 4 limitiation

Sample
US-HVD-PROD-PNO-01-VM
EMEA-HVD-PROD-WGC-01-VM
APAC-HVD-UAT-PNO-02-VM

Need to return

US-HVD-PROD-PNO
EMEA-HVD-PROD-WGC
APAC-HVD-UAT-PNO

Any help much appreciated
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Question by:Mauro Cazabonnet
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Éric Moreau earned 2000 total points
ID: 41724857
wouldn't it be something like this:
DECLARE @value VARCHAR(100) = 'US-HVD-PROD-PNO-01-VM' -- EMEA-HVD-PROD-WGC-01-VM    APAC-HVD-UAT-PNO-02-VM
DECLARE @count INT = 0
DECLARE @start INT = 0

WHILE @count < 4
BEGIN
	SELECT @start, @count
	SET @start = CHARINDEX('-', @value, @start+1)
	IF @start = 0 
		BREAK
	ELSE
		SET @count = @count + 1
END

SELECT @start, SUBSTRING(@value, 0, @start)

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you could easily create a UDF from it.
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Author Closing Comment

by:Mauro Cazabonnet
ID: 41724978
Awesome thx!!!!!!
Set up as a UDF....
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