Concatenate ProductName and SubProductName separated by comma

Posted on 2011-02-17
Last Modified: 2012-05-11
Hello Experts,

I am not completely new to sql but not familiar with everything as well. I am stumbled with one problem which I thought was easy :)

Anyways, here is the senario:
I have two tables named Products and SubProducts. Each product is related to some SubProducts. What I am trying to accomplish is return ProductName and SubProductName in following manner.




.......hope you get the idea. so concatenate ProductName and SubProductNames that are related to that ProductName.

So row one would contain concatenation of first ProductName and it's related SubProductNames
Rows two would contain concatenation of second ProductName and it's related SubProductNames....

Any ideas/suggestions are highly welcome.  

Thank you in advance for all you guys help :)
Question by:KoolAsIce
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LVL 40

Expert Comment

by:Kyle Abrahams
ID: 34919794
This will do it for you:
Replace anything in the <>

SELECT cast(p.<PARENTCOL>as varchar(50)) + ',' + el.values
CROSS APPLY (SELECT cast(<CHILDCOL> as varchar(20)) + ',' AS [text()]
             FROM <CHILDTABLE>
             WHERE <PARENTCOL_ID = ChildTable_ParentCOL ID (FK>
             FOR XML PATH(''))el(values)

LVL 40

Accepted Solution

Kyle Abrahams earned 500 total points
ID: 34919799
forgot values was a keyword.  below will work.

SELECT cast(p.<PARENTCOL>as varchar(50)) + ',' + el.MYvalues
CROSS APPLY (SELECT cast(<CHILDCOL> as varchar(20)) + ',' AS [text()]
             FROM <CHILDTABLE>
             WHERE <PARENTCOL_ID = ChildTable_ParentCOL ID (FK>
             FOR XML PATH(''))el(MYvalues)
LVL 40

Expert Comment

by:Kyle Abrahams
ID: 34919830
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Author Closing Comment

ID: 34920081
You are genius! I was trying to do same thing using three temporary tables and almost 100 lines of code!

Thank you so much for your help!

Author Comment

ID: 34947447
Can someone tell me how to avoid '&' displaying as &amp;

In the attached code, the column SubCategoryName has a name containing '&' and result is displayed as '&amp;'

I assume it's because of the use of FOR XML PATH(' ').

All the help would be greatly appreciated on how to avoid that.  

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