Question

I’m using WebMatrix to build a webpage that queries our accounting software and displays the top salesman of the day.

I have 4 Salesmen: sam (salesman 7) Jared (salesman 8) Charlie (salesman 12) Mitchell (salesman 17)

Query code:

var ssjb = db.QueryValue("SELECT SUM(SUBTOTAL) FROM dbo.DR_TRANS where Transdate = 41195 and SALESNO = 7 and subtotal >0");  
var sjdp = db.QueryValue("SELECT SUM(SUBTOTAL) FROM dbo.DR_TRANS where Transdate = 41195 and SALESNO = 8 and subtotal >0");  
var scjb = db.QueryValue("SELECT SUM(SUBTOTAL) FROM dbo.DR_TRANS where Transdate = 41195 and SALESNO = 12 and subtotal >0");    
var smms = db.QueryValue("SELECT SUM(SUBTOTAL) FROM dbo.DR_TRANS where Transdate = 41195 and SALESNO = 17 and subtotal >0"); 

Now, I want to evaluate the results of the four queries, and display “Top Salesman: name“

I’m lost as to how to evaluate the query then turn the salesman number into the corresponding name.

EDIT: Database structure:

• dbo.staff has lots of columns but the first two are staffno (primary key) and Name.
• dbo.DR_TRANS contains again many columns but the two we are working with are subtotal and salesno – neither of which are keys. This table has a scrolling key which is the invoice number.
• Salesno is derived from staffno (passed through by the app from login details.)

Answer 1

Below, (I think) us the query you are looking for. Both tables are joined using INNER JOIN through their Linking column the DR_TRANS.Salesno = Staff.StaffNo. It will list all the Staff who has record and which subtotal > 0. No need to add a condition for the staffNo as they are listed on descending order based on their total transaction.

SELECT  b.Name, SUM(subtotal) totalSUM
FROM    DR_TRANS a
        INNER JOIN Staff b
            ON a.Salesno = b.Staffno
WHERE   a.TransDATe = 41195 AND
        a.subtotal > 0
GROUP BY b.Name
ORDER BY totalSUM DESC