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POSQL Server : queries for quantity
 

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    <p><strong>TABLE 1</strong></p> <pre><code>ID | DATE | a | 10-07-2012 | b | 10-07-2012 | c | 10-07-2012 | </code></pre> <p><strong>TABLE2</strong></p> <pre><code>ID | OrdersID | a | 001 | b | 002 | c | 003 | </code></pre> <p><strong>TABLE3</strong></p> <pre><code>ItemID | OrdersID | Items | 1 | 001 | 5 | 2 | 002 | 3 | 7 | 003 | 2 | 3 | 003 | 7 | 4 | 001 | 8 | 2 | 003 | 7 | 5 | 003 | 6 | 6 | 003 | 1 | </code></pre> <p><strong>TABLE4</strong></p> <pre><code> ItemID | ItemName | 1 | ABC | 2 | EFG | 3 | HIJ | 4 | KLM | 5 | NOP | 6 | QRS | 7 | TUV | </code></pre> <p>I would like to select the ID's from <code>TABLE1</code> t where <code>Date = 10-07-2012</code></p> <p>In <code>Table2</code> with the ID's I would like to select the <code>OrdersID</code>'s</p> <p>With the <code>OrdersID</code>'s I would like to add together how many Items of a <code>ItemID</code> exist e.g. <code>IteamID</code> 2 has a total of 10 Items</p> <p>From <code>TABLE3</code> I would like to know the top 5 Items and the quantity of Items in Order and get the names of the the <code>ItemID</code> from <code>TABLLE4</code> <code>ItemName</code>.</p> <p>Expected results 5 results </p> <pre><code>ItemID | ItemName | Quantity | 2 | EFG | 10 | 3 | HIJ | 7 | ..... ..... ..... ..... </code></pre> <p>SQL used at the start ...</p> <pre><code> SELECT SUM (t3.Items) , t4.ItemName FROM Table3 t3 JOIN Table2 t2 ON t3.OrdersID = t2.OrdersID JOIN Table1 t1 ON t2.ID = t1.ID WHERE t1.[Date] = '10072012 00:00:00' </code></pre>
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