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PONeed help for my SQL query
 

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  1. PONeed help for my SQL query
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    <p>Well I may have posted this earlier also, but unable to find the answer so far, so please help me on this one. </p> <p>My database structure: </p> <p><strong>ATT</strong> (<code>Activity</code> table)</p> <ul> <li>Act_ID(PK)</li> <li>Assigned_To_ID (FK, refer to <code>Emp_ID</code>)</li> <li>Project_ID (FK, refer to <code>Project_ID</code>)</li> <li>Product_ID (FK, refer to <code>Product_ID</code>)</li> <li>Status (can be <code>New, OnHold, Cancel, Closed</code>)</li> </ul> <p><strong>Product_Table</strong> </p> <ul> <li>Product_ID (PK)</li> <li>Product_Name</li> </ul> <p><strong>Project_Table</strong> </p> <ul> <li>Project_ID (PK)</li> <li>Project_Name</li> </ul> <p><strong>Employee_Table</strong> </p> <ul> <li>Emp_ID (PK)</li> <li>F_Name.</li> </ul> <p><strong>Constraints</strong> </p> <ul> <li>In 1 Project --> Multiple employees can work</li> <li>1 Employee -- > Can be assigned multiple activities (<code>Act_ID</code>)</li> <li>At any given point of time <code>Status</code> can be any of those given values</li> </ul> <p>Now in my SQL query what I want to do is a load check ::</p> <p>An activity (represented by <code>Act_ID</code>) is assigned to an employee is represented by <code>Assigned_To_ID</code>, for Project (<code>Project_ID</code> in <code>ATT_Table</code>) and a particular status. I need to output 5 values from my SQL query: </p> <ol> <li>Name of Employee</li> <li>Name of Project</li> <li>Number of total activities an Employee(In A) is assigned. </li> <li>Number of activities an Employee(In A) is assigned where Status is either New or InProcess.</li> <li>Load. That will be = C/D * 100 (C is a larger value than D, which is obvious.) </li> </ol> <p>Now There may be a condition That an employee let's say E1 is working on project P1,P2. So my table output will be look like this:: </p> <pre><code>A B C D E E1 P1 E1 P2 </code></pre> <p>So here C, D, E will be having values corresponding to activities for that Project(P1 or P2)</p> <p>I have tried this so far :: </p> <pre><code>SELECT F_Name AS A, Project_Name AS B, Count(Act_ID) AS C, Count(Act_ID) AS D FROM Employee_Table, ATT_Table, Project_Table WHERE ATT_table.[Assigned_To_ID] = Employee_Table.[Emp_ID] AND Project_Table.[Project_ID] = ATT_Table.[Project_ID] AND Count(Act_ID) IN (SELECT Count(Act_ID) FROM ATT_Table WHERE ATT_Table.[Status] &lt;&gt; 'Closed' AND ATT_Table.[Status] &lt;&gt; 'OnHold') GROUP BY F_Name, Project_Name; </code></pre> <p>I am getting A, B, C. But when I try to find the activities for status check I cannot execute this query as it gives me a message cannot write count in WHERE clause. please help me on this one. Thanks.. </p>
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