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12.20.2007 at 10:27AM PST, ID: 23036541
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6.2

Creating a SQL query to return a sum by month (and display every month even if total is zero)

Asked by jetstar51 in Microsoft Access Database, Databases Miscellaneous, MS SQL Server

Tags: , , , ,

I am creating a form that will allow users to view a summary of trading activity by month.  I created a query which takes the user input (year, sector, min trade size) and returns the sums grouped by months.  One problem that I encountered is having the query return a value for every month, even if there were no trades in the month.

For example, my query as is would return the below:
Month / Year    Volume
6 / 2007           1,000,000
7 / 2007           2,000,000
9 / 2007           3,000,000

But I would like it to return the below:
Month / Year    Volume
6 / 2007           1,000,000
7 / 2007           2,000,000
8 / 2007           0
9 / 2007           3,000,000

I would be willing to have the query group by an actual date (like the first day of the month).  I just want it to show all months in the years selected.  Maybe have it make a temp table?  I am just learning Access and SQL so help with the code (shown) would be amazing.  Please ask questions if I am not clear.

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SELECT year(Trades.ReportDate) AS TradeYear, Month(Trades.ReportDate) AS TradeMonth, Sum(Trades.Size) AS TotalVolume
FROM (SectorList INNER JOIN CompanyList ON SectorList.SectorID=CompanyList.SectorID) INNER JOIN Trades ON CompanyList.Ticker=Trades.Ticker
WHERE (((Year(Trades.ReportDate))>=Forms!MonthForm!YearInput) And ((Year(Trades.ReportDate))<=Forms!MonthForm!YearInput2) And ((Trades.Size)>=Forms!MonthForm!TradeSizeInput) And ((SectorList.SectorName)=Forms!MonthForm!SectorInput))
GROUP BY year(Trades.ReportDate), Month(Trades.ReportDate);
[+][-]12.20.2007 at 10:31AM PST, ID: 20508808

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[+][-]12.20.2007 at 10:32AM PST, ID: 20508813

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[+][-]12.20.2007 at 12:02PM PST, ID: 20509473

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About this solution

Zones: Microsoft Access Database, Databases Miscellaneous, MS SQL Server
Tags: sql, query, display, sum, month
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Solution Provided By: dbbishop
Participating Experts: 3
Solution Grade: B
 
 
[+][-]12.21.2007 at 06:35AM PST, ID: 20513696

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[+][-]12.21.2007 at 12:15PM PST, ID: 20516089

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[+][-]12.21.2007 at 12:49PM PST, ID: 20516266

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[+][-]01.03.2008 at 01:04PM PST, ID: 20576826

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[+][-]01.03.2008 at 03:41PM PST, ID: 20578272

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[+][-]01.03.2008 at 04:04PM PST, ID: 20578451

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[+][-]01.03.2008 at 04:10PM PST, ID: 20578493

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