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POSQL Statement Inner Join + Others...So join within a join?
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I have the following SQL statement where I am adding game inventory and ordered inventory and then selecting the games that have that total inventory below the reorder point. The only problem is that I also want to select the game inventory below the reorder point that does not have any ordered inventory. I tried messing with the Having line where ItemIDs don't match, but no luck. Here is the current working code. What I have: <pre><code>SELECT tblGames.ItemID, tblGames.Title, ABS(tblGames.Inventory + Sum(tblSupplyOrders.Inventory)) AS UpdatedInventory FROM tblGames INNER JOIN tblSupplyOrders ON tblGames.ItemID=tblSupplyOrders.ItemID Group By tblGames.ItemID, tblGames.Title, tblGames.Inventory, tblGames.ReorderPoint Having ABS(tblGames.Inventory + Sum(tblSupplyOrders.Inventory)) < tblGames.ReorderPoint </code></pre> What I also want to display with it: <pre><code>SELECT tblGames.ItemID, tblGames.Title, tblGames.Inventory FROM tblGames INNER JOIN tblSupplyOrders ON tblGames.ItemID=tblSupplyOrders.ItemID Group By tblGames.ItemID, tblGames.Title, tblGames.Inventory, tblGames.ReorderPoint Having tblGames.Inventory < tblGames.ReorderPoint </code></pre> ...where there is no tblSupplyOrders.ItemID Thanks in advance! <h2>Update Requested</h2> tblGames includes: <ul> <li>ItemID int, auto PK</li> <li>Title varchar(100)</li> <li>Inventory int,</li> <li>ReorderPoint int</li> </ul> tblSupplyOrders includes: <ul> <li>SupplyOrder int, auto PK</li> <li>ItemID int, FK to tblGames</li> <li>Inventory int</li> </ul> So if: <ul> <li>tblGames/tblSupplyOrders.ItemID = The Same #</li> <li>tblGames.Inventory = 2</li> <li>tblSupplyOrders.Inventory = 3</li> <li>tblGames.ReorderPoint = 6</li> <li>Output will include this game.</li> <li>The problem: It won't detect this game if there is no matching ItemID in tblSupplyOrders.</li> </ul>
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<mysql><sql><join>
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SQL Statement Inner Join + Others...So join within a join?
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