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    <p>Here's a solution that does a <code>GROUP BY</code> in the derived table subquery so you get only one row per movie title, and calculate the <code>ROW_NUMBER()</code> from that. </p> <p>Then join the result of the derived table to <code>st</code> again in the outer query. There will still be multiple rows per movie title, but the <code>RowNum</code> will repeat so you can filter for your <code>@pageIndex</code> correctly.</p> <pre><code>SELECT * FROM ( SELECT ROW_NUMBER() OVER(ORDER BY " + orderField + @") AS RowNum, mt.ID AS mt_ID, mt.title AS mt_title, [...] FROM mt AS mt INNER JOIN sttable AS st ON mt.ID =st.ID WHERE mt.title = @variable GROUP BY mt.ID ) mt1 INNER JOIN sttable AS st1 ON (mt1.ID = st1.ID) WHERE mt1.RowNum BETWEEN ((@pageIndex - 1) * @pageSize + 1) AND @pageIndex*@pageSize; </code></pre> <p>You'll have to loop over the result of the outer query in your display code and begin a new row of output whenever the value <code>RowNum</code> changes. This is a pretty obvious technique.</p> <p>If you instead want to do something like MySQL's <code>GROUP_CONCAT()</code> function, this is tricky in Microsoft SQL Server (I assume you're using Microsoft). </p> <p>See blogs like <a href="http://blog.shlomoid.com/2008/11/emulating-mysqls-groupconcat-function.html" rel="nofollow noreferrer">http://blog.shlomoid.com/2008/11/emulating-mysqls-groupconcat-function.html</a> that describe use of the <code>FOR xml PATH ('')</code> trick.</p> <p>PS: Your sample SQL query didn't make sense given your verbal description, so I did my best to write something sensible. No guarantees it matches your schema. </p> <hr> <p>Re your comment: I don't think you need to order by any column of <code>st</code> inside the subquery. I intended there to be no columns from <code>st</code> included in the select-list of the subquery. The only reason there's an instance of <code>st</code> joined in the subquery is to restrict the rows of <code>mt</code> to those that have matching rows in <code>st</code>. But the <code>GROUP BY mt.ID</code> makes sure there's only one row per row of <code>mt</code> (actually since this is SQL Server and not MySQL you'll need to name all the <code>mt</code> columns of the select-list in the <code>GROUP BY</code> clause).</p> <hr> <p>Re your second comment:</p> <blockquote> <p>I want to first display mt rows that have corresponding st records that have been most recently added</p> </blockquote> <p>You can add other columns to the grouped query if you use grouping functions. For instance, the latest <code>date_added</code> per group of <code>mt</code> is <code>MAX(st.date_added)</code>, and you can add this column to the subquery.</p> <p>However, don't use <code>ORDER BY</code> in the subquery. There's seldom any reason to sort a subquery, since the order may be altered anyway by using the subquery result in the JOIN or other operations you'd use a subquery in. </p> <p>You should sort in the outer query:</p> <pre><code>SELECT * FROM ( SELECT ROW_NUMBER() OVER(ORDER BY " + orderField + @") AS RowNum, mt.ID AS mt_ID, mt.title AS mt_title, [...] -- other mt.* columns MAX(st.date_added) AS latest_date_added FROM mt AS mt INNER JOIN sttable AS st ON mt.ID =st.ID WHERE mt.title = @variable GROUP BY mt.ID, -- other mt.* columns ) mt1 INNER JOIN sttable AS st1 ON (mt1.ID = st1.ID) WHERE mt1.RowNum BETWEEN ((@pageIndex - 1) * @pageSize + 1) AND @pageIndex*@pageSize ORDER BY mt1.latest_date_added DESC, st1.date_added DESC; </code></pre>
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    1. COThanks for this. I'm now using a query similar to the one you suggested, but the problem I'm having is that I need to be able to sort st in the inside query, but when I try to do so I am told that the column I have selected to sort by is invalid in the select list because it is not contained in either an aggregate function or the GROUP BY clause. If I add the column to the GROUP BY clause, then the query once again starts returning multiple rows for each mt entry.
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    2. COOK -- Yes -- I've got the mt columns working properly (they are in the select list and the GROUP BY clause), but how can I sort by a field in st? For example, I have a field in st called "date_added", and I want to order the mt results by st.date_added (i.e., I want to first display mt rows that have corresponding st records that have been most recently added). Would I put the ORDER BY st.date_added code in the outer query?
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    3. COThansk very much. I got this to work.
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