How Can I Calculate the Start and End Dates of a Week from its Week Number in a Database Query?

Determining Week Start and End Dates from Week Number

In a database query that counts wedding dates by week number, it's often useful to know the start and end dates of each week represented in the result. This enables further analysis and insights into wedding trends.

To calculate the week start date, subtract the day of week from the wedding date and adjust it by days. This can be achieved with:

DATEADD(dd, -(DATEPART(dw, WeddingDate)-1), WeddingDate) [WeekStart]

Similarly, to determine the week end date, subtract the day of week from 7 and adjust it by days:

DATEADD(dd, 7-(DATEPART(dw, WeddingDate)), WeddingDate) [WeekEnd]

Remember to strip the time from the dates for precision. By adding these columns to the query, you'll have a more comprehensive understanding of the wedding distribution over time.

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