calculate week number within a date range

How will I calculate week number within a date range ? Here my week starts开发者_如何学C from Saturday to Friday. And I have a start date and end date. With this, how will i calculate using SQL Query ?

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Use DATEPART to get the Week number, and DATEFIRST to set the first day of the week. (See http://msdn.microsoft.com/en-us/library/ms181598.aspx)

Example to get all week numbers in range with Saturday as the first day of week.

SET DATEFIRST 6
SELECT DISTINCT 
    DATEPART(WEEK, createDate) 
FROM 
    tblUser
WHERE
    createDate > '2005-01-01' AND createDate < '2011-01-01'
ORDER BY
    DATEPART(WEEK, createDate)

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You can use this and your SQL work operates well:

SET LANGUAGE us_english -- with your language 
GO