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  1. PO
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    <p>I hope I've understood you correctly, but a query like this might be what you need (BTW I haven't tested this and I'm not sure about using COUNT - what happens if it counts a number > 1?):</p> <p>(Edit: I have added some test data and results to help clarify the situation also debugged a couple of copy and paste errors.)</p> <p>Basically each left join represents sale item products from a particular group the case statement is the driver for the logic.</p> <p>Test it out and have a play around, the temporary tables at the top will allow you to use your own test data to try out different cases.</p> <p>Also I remmed out the WHERE clause and added a group by so you can see all the test data at a glance...</p> <pre><code>DECLARE @SaleId int DECLARE @tbl_SalesItems AS TABLE(SaleID int, SaleItemCode varchar(10)) DECLARE @tbl_Products AS TABLE(ProductGroup int, ProductCode varchar(10)) INSERT INTO @tbl_SalesItems(SaleID, SaleItemCode) VALUES (1,'Product1') INSERT INTO @tbl_SalesItems(SaleID, SaleItemCode) VALUES (2,'Product2') INSERT INTO @tbl_SalesItems(SaleID, SaleItemCode) VALUES (3,'Product1') INSERT INTO @tbl_SalesItems(SaleID, SaleItemCode) VALUES (3,'Product2') INSERT INTO @tbl_SalesItems(SaleID, SaleItemCode) VALUES (3,'Product3') INSERT INTO @tbl_Products(ProductGroup, ProductCode) VALUES (13, 'Product1') INSERT INTO @tbl_Products(ProductGroup, ProductCode) VALUES (14, 'Product2') INSERT INTO @tbl_Products(ProductGroup, ProductCode) VALUES (16, 'Product3') INSERT INTO @tbl_Products(ProductGroup, ProductCode) VALUES (16, 'Product4') SET @SaleId = 1 SELECT si.SaleId ,CASE WHEN COUNT(pg13.ProductCode) = 1 AND COUNT(pg14.ProductCode) = 0 AND COUNT(pg16.ProductCode) = 0 THEN 1 WHEN COUNT(pg13.ProductCode) = 0 AND COUNT(pg14.ProductCode) = 1 AND COUNT(pg16.ProductCode) = 0 THEN 2 ELSE 0 END AS ATCType FROM @tbl_SalesItems si LEFT JOIN @tbl_Products pg13 ON si.SaleItemCode = pg13.ProductCode AND (pg13.ProductGroup = 13) LEFT JOIN @tbl_Products pg14 ON si.SaleItemCode = pg14.ProductCode AND (pg14.ProductGroup = 14) LEFT JOIN @tbl_Products pg16 ON si.SaleItemCode = pg16.ProductCode AND (pg16.ProductGroup = 16) --WHERE si.SaleId = @SaleId GROUP BY si.SaleId </code></pre> <p><strong>Results:</strong></p> <pre><code>SaleId ATCType 1 1 2 2 3 0 4 2 </code></pre>
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    1. COThanks for your reply Mack. To be honest I am still trying to get my head around your select statement!
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    2. CO@BiigJiim Check out the edits and see if this makes more sense. Sorry it's taken so long to update.
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    3. COSorry, couldn't work out how to mark this as answered (D'OH!), but it works for me. Thanks Mack
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