Date split-up based on Fiscal Year

Question

Given a From Date, To Date and a Fiscal Year system, I want to get all the split-up duration within the given From & To Date based on the Fisc

Answer 1

CREATE TABLE your_table (start_date date, end_date date); 
INSERT INTO your_table VALUES (CONVERT (date, GETDATE()),CONVERT (date, DATEADD(year, -1, GETDATE())) ); 

WITH mycte AS
 (
 SELECT 1 as id
 UNION ALL
 SELECT id + 1
 FROM mycte
 WHERE id + 1 < = 12
 ),
 cte_distribution as
 (
 SELECT *, 
 DATEPART (month,DATEADD(month, mycte.id - 1, your_table.start_date)) as month_number ,
 DATEPART (YEAR,DATEADD(month, mycte.id - 1, your_table.start_date)) as  cal_year,
 12000/12 as cash
 FROM your_table
 CROSS JOIN mycte
 )
 select 
 *,
 (CASE WHEN month_number between 1 and 3 THEN '1st quarter' WHEN month_number between 4 and 6 THEN '2nd quarter'  WHEN month_number between 7 and 9 THEN '3rd quarter' WHEN month_number between 9 and 12 THEN '4th quarter' END) as Quarter,
 CASE WHEN month_number between 1 and 6 THEN  CAST(CAST((cal_year - 1) as CHAR(4)) + '-' + CAST(cal_year as CHAR(4)) AS CHAR(9))  WHEN  month_number between 6 and 12 THEN CAST(CAST((cal_year) as CHAR(4)) + '-' + CAST((cal_year + 1) as CHAR(4)) AS CHAR(9))  ELSE NULL END as fin_year
 from cte_distribution;