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Home » Article Discussions » Article Discussions by Author » Discuss content posted by Suresh G. Kumar » A simple T-SQL statement to create a list of...
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Suresh Kumar-365787
Posted Sunday, March 20, 2011 9:12 PM
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Comments posted to this topic are about the item A simple T-SQL statement to create a list of lookup values
Post #1081065
Mansfield
Posted Sunday, March 20, 2011 9:14 PM
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You can use the following SQL to compose the comma-delimited string, without needed to trim the trailing comma at the end:

SELECT @MyStatusList = ISNULL(@MyStatusList + ',', '') + StatusDesc FROM (SELECT DISTINCT StatusDesc FROM MyStatus) x
Post #1081066
feeza_ibrahim
Posted Monday, March 21, 2011 12:54 AM
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It can be made simple with the following sql statement

SELECT REPLACE((SELECT DISTINCT RTRIM(LTRIM(StatusDesc)) AS 'data()'
FROM dbo.MyStatus
FOR XML PATH ( '' )), ' ', ', ')
Post #1081095
Jozef Cepel
Posted Monday, March 21, 2011 1:08 AM
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Yo can also write example like this:

DECLARE @MyStatusList VARCHAR(1000)
SELECT @MyStatusList = COALESCE(@MyStatusList + ',', '') + StatusDesc FROM MyStatus
select @MyStatusList
Post #1081099
Jason-299789
Posted Monday, March 21, 2011 3:07 AM
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Cursors in MS T-SQL should be avoided unless absolutely necessary as they are extremely slow and inefficent.

Using one of the methods mentioned in previous posts is a better and more efficent alternative to the method you mention, my personal preference is the XML conversion with a nested Replace.

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Post #1081124
arty 15255
Posted Monday, March 21, 2011 3:15 AM
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In regards distinct values:

SELECT @s = ISNULL(@s+',','')+field FROM dbo.TABLE
GROUP BY field

works well too.
Post #1081128
arty 15255
Posted Monday, March 21, 2011 3:17 AM
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arty 15255 (3/21/2011)
In regards distinct values:

SELECT @s = ISNULL(@s+',','')+field FROM dbo.TABLE
GROUP BY field

works well too.


I forgot to mention that ORDER BY field works as well :)
Post #1081129
hrc
Posted Monday, March 21, 2011 3:22 AM
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Jason: May I ask for a a short example on how to do XML with nested replaces? I have no experience with XML in SQL. Okay. Found it, don't understand it though. 5 minutes later I understand it. A better solution because there's no record limit
Post #1081130
hrc
Posted Monday, March 21, 2011 3:25 AM
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Jason: May I ask for a a short example on how to do XML with nested replaces? I have no experience with XML in SQL. Okay. Found it, don't understand it though
Post #1081133
liam.gavin
Posted Monday, March 21, 2011 3:40 AM
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Jason, the method described does not use a cursor. It is good to share the method in the article but it should be known and in use already which judging by posts it is. Comparing the execution plan for XML version and article version shows SQL handling the query in exactly the same way, so no benefit from using XML in this instance that I can see. Might be worthwhile exploring XML though if requirements were more complex.
Post #1081138
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