Logic to get dynamic date range in query for Fiscal Year - sql

Question

I have a requirement to select data for different date ranges, depending one the current month it is run on. I have a Stored Procedure that takes in a user supplied Date i.e. 04/06/2020 into the variable #PPE. Based on the Month portion of this date, I need to query back varying ranges as in a Fiscal Year (July 1 - June 30th) follows: I am using the example using a 2020 Financial Year.
MONTH(#PPE) Date Range to Query
July 07/01/2019 - 07/01/2019
August 07/01/2019 - 08/31/2019
September 07/01/2019 - 09/30/2019
October 07/01/2019 - 09/30/2019
November 07/01/2019 - 09/30/2019
December 07/01/2019 - 09/30/2019
January 07/01/2019 - 12/31/2019
February 07/01/2019 - 12/31/2019
March 07/01/2019 - 12/31/2019
April 07/01/2019 - 03/31/2020
May 07/01/2019 - 03/31/2020
June 07/01/2019 - 03/31/2020
Then Starting next Fiscal Year (2021) it would go as follows, and onwards...
MONTH(#PPE) Date Range to Query
July 07/01/2020 - 07/01/2020
August 07/01/2020 - 08/31/2020
September 07/01/2020 - 09/30/2020
October 07/01/2020 - 09/30/2020
November 07/01/2020 - 09/30/2020
December 07/01/2020 - 09/30/2020
January 07/01/2020 - 12/31/2020
February 07/01/2020 - 12/31/2020
March 07/01/2020 - 12/31/2020
April 07/01/2019 - 03/31/2021
May 07/01/2019 - 03/31/2021
June 07/01/2019 - 03/31/2021
I started with this query , but I'm having trouble manipulating the correct FISCAL_YEAR to put in, depending on what the month of the #PPE date is, because it spans 2 years between April and June.
PERIOD represents the Fiscal Month number i.e. July = 1 , August = 2, ....June = 12
DECLARE #PPE datetime; SET #PPE = '04/06/2020'
SELECT COMPANY, DEPTID, FISCAL_YEAR, PERIOD, GH_REPORTID, SUM(GH_HOURS), SUM(GH_DOLLARS)
FROM PS_GH_SLT_ACTUALS
WHERE DEPTID = 55650000
AND GH_REPORTID = 'BA'
AND PERIOD <= CASE WHEN MONTH(#PPE) BETWEEN 1 AND 3 THEN 12
WHEN MONTH(#PPE) BETWEEN 4 AND 6 THEN 3
WHEN MONTH(#PPE) BETWEEN 7 AND 9 THEN 6
WHEN MONTH(#PPE) BETWEEN 10 AND 12 THEN 9
END
-- AND PERIOD <= 7 ???
AND FISCAL_YEAR = CASE WHEN MONTH(#PPE) BETWEEN 1 AND 3 THEN YEAR(#PPE)
WHEN MONTH(#PPE) BETWEEN 4 AND 6 THEN ....???
GROUP BY COMPANY, DEPTID, FISCAL_YEAR, PERIOD, GH_REPORTID

Answer 1

If your fiscal year is already in the format, then you can use the following and condition:
FISCAL_YEAR = CASE WHEN MONTH(#PPE) BETWEEN 1 AND 6 THEN YEAR(#PPE)
ELSE YEAR(#PPE)+1 END
The above condition should work under the assumption that, Jul 2019 to Jun 2020 is called as Fiscal year 2020, as per your data. Hope this helps.