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Go Back  dBforums > Database Server Software > Microsoft SQL Server > retrieving only 50 chars from a detail table

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  #1 (permalink)  
Old 01-25-12, 14:38
alt-088 alt-088 is offline
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Posts: 91
retrieving only 50 chars from a detail table

Hello everyone -

I have a detail table of comments. I need to grab the fist 50 characters from the comment field from this table. The kick is that I need to get the comments from all of the records in the detail table, as the comments might be less than 50 characters, so i need to pull the comments from the other comment records that apply to the master table record.

right now i have the comments in a join to the master table, but this is causing a few records to be returned....

I guess what i am looking for is a way to grab the comment value from the first record of the detail table.

thanks
tony
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  #2 (permalink)  
Old 01-25-12, 16:47
Wim Wim is offline
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Join Date: Nov 2004
Posts: 1,280
Try this:
Code:
SELECT Master.Id,
	LEFT((SELECT LTRIM(RTRIM(Details.comments)) + ' ' 
		FROM Details
		WHERE Master.Id = Details.MasterId
		ORDER BY Details.seqNr
		FOR XML PATH('')
		), 50) AS Comments
FROM Master
GROUP BY Master.Id ;
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Beware of bugs in the above code; I have only proved it correct, not tried it. -- Donald Knuth
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Pat Phelan's Law: 2 very definitely CAN equal 3 -- in at least two programming languages
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