how to get data dynamically in view basing on fiscal year - sql

Question

How can i create a view Dynamically to get the data based on fiscal year(Financial year).
Lets have look at sample data where im having sample data.
Declare #t table(StartDate date )
insert into #t values('04/01/2012'),
('01/01/2012'),
('09/15/2013'),
('04/01/2014'),
('01/01/2015'),
('09/15/2015'),
('04/01/2016'),
('01/01/2017'),
('09/15/2016')
Just take an example if I have ran the view today I need to get from March 2016 to April 2017. If I have ran view on May 2017 I need to get data from march 2017 to upto may 2017.
I can work it out in Sql server scripts or Stored procedure but how can I achieve the same result in Dynamic View or View .
Suggest me !
my script
DECLARE #STARTDATE DATETIME, #ENDDATE DATETIME,#CURR_DATE DATETIME
SET #CURR_DATE='2016-06-01'
IF MONTH(#CURR_DATE) IN (1,2,3)
BEGIN
SET #STARTDATE= CAST( CAST(YEAR(#CURR_DATE)-1 AS VARCHAR)+'/04/01' AS DATE)
SET #ENDDATE= CAST( CAST(YEAR(#CURR_DATE) AS VARCHAR)+'/03/31' AS DATE)
END
ELSE
BEGIN
SET #STARTDATE= CAST( CAST(YEAR(#CURR_DATE) AS VARCHAR)+'/04/01' AS DATE)
SET #ENDDATE= CAST( CAST(YEAR(#CURR_DATE)+1 AS VARCHAR)+'/03/31' AS DATE)
END
select * from #t
where StartDate between
#STARTDATE AND #ENDDATE
order by year (StartDate)
it's giving data what I want for the fiscal year (2016-2017)
but how can I use this and create a VIEW

Answer 1

select t.*,getdate()
from #t t
where year(startdate) * 100 + month(startdate) >=
case
when month(getdate()) in (1,2,3) then (year(getdate()) * 100) + 3 - 100
else (year(getdate()) * 100) + 3
end

Answer 2

You can use cte with dates based on current date (GETDATE()) in a view:
;WITH cte AS (
SELECT CASE WHEN MONTH(GETDATE()) IN (1,2,3) THEN CAST( CAST(YEAR(GETDATE())-1 AS VARCHAR)+'/04/01' AS DATE) ELSE CAST( CAST(YEAR(GETDATE()) AS VARCHAR)+'/04/01' AS DATE) END AS StartDate,
CASE WHEN MONTH(GETDATE()) IN (1,2,3) THEN CAST( CAST(YEAR(GETDATE()) AS VARCHAR)+'/03/31' AS DATE) ELSE CAST( CAST(YEAR(GETDATE())+1 AS VARCHAR)+'/03/31' AS DATE) END AS EndDate
)
SELECT t.*
FROM YourTable t
INNER JOIN cte c
ON t.StartDate between c.StartDate AND c.EndDate
ORDER BY year(t.StartDate)

Answer 3

If you already worked out the code in a script\stored procedure you can re-use such code in a Table-Valued User-Defined Functions.
That way you will be able to query the UDF like a view.

Answer 4

You can try something like this:
select t.*
from #t t
cross join (
select startdate = case
when MONTH(#CURR_DATE) IN (1,2,3)
then CAST( CAST(YEAR(#CURR_DATE)-1 AS VARCHAR)+'/04/01' AS DATE)
else CAST( CAST(YEAR(#CURR_DATE) AS VARCHAR)+'/04/01' AS DATE)
end) s
cross join (
select enddate = case
when MONTH(#CURR_DATE) IN (1,2,3)
then CAST( CAST(YEAR(#CURR_DATE) AS VARCHAR)+'/03/31' AS DATE)
else CAST( CAST(YEAR(#CURR_DATE)+1 AS VARCHAR)+'/03/31' AS DATE)
end) e
where t.StartDate between s.startdate and e.enddate
order by year (t.StartDate)