multiple where clause dates - sql

Question

I pass two date range to my procedure then I select last date of each and every month as below
create procedure stcheck
#From_Date date,
#To_Date date
as
begin
declare #tmpTable table (dates date)
declare #startDate date = #From_Date
declare #endDate date = #To_Date
while #startDate <= #endDate
begin
insert into #tmpTable (dates) values (#startDate)
set #startDate = DATEADD(DAY, 1, #startDate)
end
select max(dates) as [Last day] from #tmpTable as o
group by datepart(YEAR, dates), datepart(MONTH, dates)
If am getting result as follows
Last day
2017-01-31
2017-02-28
2017-03-31
2017-04-30
I need to pass some data to temporary table by using these date output
Ex :-
Insert #xyz
Select * from abcd where postdate <=’2017-01-31’
And my requirement is that these all dates should be automatically used and relevant data should pass to #table.
Hi expert . thank for your early reply.
In brief my requirement is as follows. Please help because I am new with sql.
Think,I have a table as ‘stock’ with in and out stock transaction and stock
report can be taken as follows to any as at date
SELECT item ,SUM(InQty-OutQty) FROM stock
WHERE TransDate <= #AsatDate
GROUP BY item
Having SUM(InQty-OutQty) > 0
If I need to get the each and every month end stock when I am passing the date range
from #From date= ‘2017/05/01’ to #AsatDate=‘2017/09/30’ .
The stock report result should be appear something like this.
STOCK REPORT EXAMPLE
Please help what can be done?
NB:- it should be able to pass any date range when it is required.

Answer 1

Your question is a little unclear, but I'm assuming you want to run the stored procedure and insert data into the temp table #xyz (assumes temp table #xyz already exists):
insert into #xyz
exec stcheck #From_Date, #To_Date
Now off on a little tangent:
I'd also look at table-valued functions if you need parameterized, deterministic tabular output like this. I agree with #John that you should avoid looping if possible. One possible way to achieve this is instead of iterating day by day you use a pre-populated calendar table (stick say 50-100 years worth of future calendar dates in a table and use this in calculations - there are tons of examples of how to do this online). Another method is to use a recursive CTE or a numbers table, both outlined in answers here.
Once your calendar dates are easily queryable, you can stick all this in a view or inline table-valued function and it will be super fast and much clearer. If you regularly use "last day of month" as a filter criteria, you could even pre-calculate these as a column in your calendar table. Here's what it could end up like:
insert into #xyz
select dbo.DatesBetween(#From_Date, #To_Date)
You could even use dbo.DatesBetween(#From_Date, #To_Date) directly in your query in place of the temp table, if it's only used once.