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Sql Criteria one to many

Posted on 2011-03-11
Medium Priority
Last Modified: 2012-06-22
I know this may be very simple but my brain does not seem to work today.
I have a sql query joining table A to Table B
it is a one to many where Table A as the unique records and table B has the multiple records that tie to each single record in A.
for example Table A  stores Tickets with a Ticket ID in it
Table B has all the detail items on that Ticket.
what i need to do is report on is in a time period
how many tickets there were issued and how many items per ticket.

So if there were 10 tickets last month with 40 items
i need to report the result as 10 tickets and 40 items.
what i have reporting know for a ticket count is 40  because it counts each detail record for each ticket.

How can i do this?
Question by:schuitkds
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LVL 32

Accepted Solution

Ephraim Wangoya earned 2000 total points
ID: 35110510

select count(ticket), count(Items)
from Tablea
inner join tableb on Table1.ticket = tableb.ticket
group by tablea.ticket
LVL 18

Expert Comment

ID: 35110530

WITH cteTicketList (TicketID)
AS (SELECT TicketID FROM TicketList WHERE TicketDate BETWEEN @StartDate AND @EndDate),
cteTicketDetail (TicketID, Qty)
FROM TicketDetail
WHERE TicketID IN (SELECT TIcketID FROM cteTicketList)
SELECT TicketList.*, cteTicketDetail.Qty
FROM TicketList
 INNER JOIN cteTicketList ON TicketList.TicketID = cteTicketList.TicketID
 LEFT OUTER JOIN cteTicketDetail ON TicketList.TicketID = cteTicketDetail.TicketID
LVL 32

Expert Comment

by:Ephraim Wangoya
ID: 35110560


select count(TableA.ID) as Tickets, (Select Count(ID) Items from tableB
                                                                   where TableB.ID = TableA.ID
                                                                   group by TableB.ID) Items
from TableA
group by ID
LVL 18

Expert Comment

ID: 35110732
My solution sales to any size of database.  If you have a million tickets in the table, you don't want to be looking at all of the detail on all of the orders if you are only interested in a small subset.

Expert Comment

ID: 35116149
Use an ordered analytical function, as follows:

SELECT      DISTINCT dbo.tbl_Ticket_Header.TicketID,
            COUNT(TicketID) OVER(PARTITION BY TicketID, NEWID()) AS TicketCount,
            COUNT(dbo.tbl_Ticket_Detail.TicketDetailID) OVER (PARTITION BY TicketID) AS DetailCount
FROM dbo.tbl_Ticket_Header WITH (NOLOCK)
      INNER JOIN dbo.tbl_Ticket_Detail WITH (NOLOCK)
      ON (dbo.tbl_Ticket_Header.TicketID = dbo.tbl_Ticket_Detail.TicketID)

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