3

This relates to my question How to find XXth day of previous month in SQL server?

The fiscal month starts on 26th of each month.

I need to find out from any date:

  • The date of the start of the fiscal month (Start_Of_Fiscal_Month)
  • The number of days into the fiscal month (Day_Of_Fiscal_Month)

For example:

CurrentDate - '2014-04-26'

Start_Of_Fiscal_Month = 2014-04-26
Day_Of_Fiscal_Month = 1

CurrentDate - '2014-05-02'

Start_Of_Month = 2014-04-26
Day_Of_Fiscal_Month = 7
5

This will do it:

DECLARE @d DATE = '20140502', @dm TINYINT = 26;
DECLARE @Start_Of_Fiscal_Month DATE

SET @Start_Of_Fiscal_Month = DATEADD(DAY, @dm-1, DATEADD(MONTH, -1 + DATEPART(dd, @d)/26, DATEADD(DAY, 1-DAY(@d), @d)));
SELECT @Start_Of_Fiscal_Month
SELECT DATEDIFF(dd, @Start_Of_Fiscal_Month, @d) + 1
  • The formula can be further simplified to this: SET @Start_Of_Fiscal_Month = DATEADD(DAY, @dm-DAY(@d), DATEADD(MONTH, -1 + DATEPART(dd, @d)/26, @d)); – JoseTeixeira Oct 29 '15 at 18:52

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