What does the following concatentation sql do/mean?

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SQL-Server-2008R2

Cross Apply
	(
	select REPLACE(
	(
	select dsg.ShortDescription +', '
	from Final.FactStudentGroups fsg
		join final.dimstudentgroup dsg	
			on fsg.StudentGroupKey = dsg.studentgroupkey
	where fsg.VersionKey = 1
	and fsg.TermSourceKey = SDDT.TermSourceKey
	and fsg.EmployeeID = SDDT.EmployeeID
	and fsg.VersionKey = SDDT.VersionKey
	
	FOR XML PATH('')
	),'&amp;','&') as SGroup -- Not sure why code to the left is commented but it should not be. 
	)StudentGroup

As of right now I'm returning data that I don't even recognize from my dsg.Table which is the table I'm attempting to pull data from.

Any information is appreciated! Thanks in advance.

Posted 15-Sep-15 6:55am

Member 11820531

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phil.o 15-Sep-15 23:02pm

So, you want to get cars and manufacturer names from a set of tables related to students, groups and employees?

If you want to describe your problem well, you need to be honest and provide the real facts you have so far. In your question, either the results you wrote are not those that you really expect, or the SQL code you show is not the code you really have. And neither make sense.

Member 11820531 16-Sep-15 10:02am

No the example output was used only to illustrate how I want my results to look. Realistically, I am working with students, groups, and employees. (i.e. The line where I wrote: Please note the above results are not directly related to the SQL listed)

The code I pasted in there is also code that I am actually using. You probably don't understand my question as the information available to you is not enough for you to answer my question.

Thanks for your input.

Charlemagne Gustilo 30-Sep-15 2:10am

Hi, are you collecting the list of records as a single record? Check COALESCE function to handle that. Below is a sample.

DECLARE @SQL VARCHAR(8000)

SELECT @SQL=COALESCE(@SQL,'')+' '+RTRIM(FIELD)+ ', '
FROM TABLE

SELECT @SQL

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