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POConcatenate row values T-SQL
 

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    <p>I am trying to pull together some data for a report and need to concatenate the row values of one of the tables. Here is the basic table structure:</p> <p><strong>Reviews</strong> </p> <pre><code> ReviewID ReviewDate </code></pre> <p><strong>Reviewers</strong> </p> <pre><code> ReviewerID ReviewID UserID </code></pre> <p><strong>Users</strong> </p> <pre><code>UserID FName LName </code></pre> <p>This is a M:M relationship. Each Review can have many Reviewers; each User can be associated with many Reviews.</p> <p>Basically, all I want to see is Reviews.ReviewID, Reviews.ReviewDate, and a concatenated string of the FName's of all the associated Users for that Review (comma delimited).</p> <p>Instead of:</p> <pre><code>ReviewID---ReviewDate---User 1----------12/1/2009----Bob 1----------12/1/2009----Joe 1----------12/1/2009----Frank 2----------12/9/2009----Sue 2----------12/9/2009----Alice </code></pre> <p>Display this:</p> <pre><code>ReviewID---ReviewDate----Users 1----------12/1/2009-----Bob, Joe, Frank 2----------12/9/2009-----Sue, Alice </code></pre> <p>I have found <a href="http://www.simple-talk.com/sql/t-sql-programming/concatenating-row-values-in-transact-sql/" rel="noreferrer" title="this">this</a> article describing some ways to do this, but most of these seem to only deal with one table, not multiple; unfortunately, my SQL-fu is not strong enough to adapt these to my circumstances. I am particularly interested in the example on that site which utilizes FOR XML PATH() as that looks the cleanest and most straight forward.</p> <pre><code>SELECT p1.CategoryId, ( SELECT ProductName + ', ' FROM Northwind.dbo.Products p2 WHERE p2.CategoryId = p1.CategoryId ORDER BY ProductName FOR XML PATH('') ) AS Products FROM Northwind.dbo.Products p1 GROUP BY CategoryId; </code></pre> <p>Can anyone give me a hand with this? Any help would be greatly appreciated!</p>
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    1. COSimilar to http://stackoverflow.com/questions/122942/how-to-return-multiple-values-in-one-column-t-sql and http://stackoverflow.com/questions/451415/simulating-groupconcat-mysql-function-in-ms-sql-server-2005
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