c# razor group data by month from datetime

Hi everyone,

I'm writing a new report for a sales system. I have a table that records sales, and I want to total the sales for each month.

The database table is called CART
The Date field is called DATESUBMITTED
The sales figure I want to total for each month is called TOTALVAT

Is it possible to write a query that will select all sales between 2 dates (populated by dropdown calenders) and then group them by month using the month/year parts of the datetime field?

I can generate a grouped Daily report using the following:

 sales = db.Query("SELECT SUM(TotalVAT) AS Total, DateSubmitted FROM Cart WHERE DateSubmitted IS NOT NULL AND DateSubmitted BETWEEN @0 AND @1 GROUP BY DateSubmitted",startdate,enddate);

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All I need is the ability to define the Group By as the month, not the whole date.

Any ideas would be greatly appreciated!
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RossHuddsAuthor Commented:
It's always the way isn't it? You post a question and then solve it yourself 5 minutes later...

The trick is to convert the DateTime field like this:

        sales = db.Query("SELECT SUM(TotalVAT) AS Total, CONVERT(CHAR(4), DateSubmitted, 100) AS Datey FROM Cart WHERE DateSubmitted IS NOT NULL AND DateSubmitted BETWEEN @0 AND @1 GROUP BY CONVERT(CHAR(4), DateSubmitted, 100)",startdate,enddate);

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Hope that helps someone.

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