Question

I need a cursor for the below query so I can loop through to fetch/update/insert some other data. Can somebody help me with this?

DECLARE @FROMDATE DATETIME
DECLARE @TODATE DATETIME
SELECT @FROMDATE = Getdate()
SELECT @TODATE = Getdate() + 7

;WITH DATEINFO(DATES)
     AS (SELECT @FROMDATE
         UNION ALL
         SELECT DATES + 1
         FROM   DATEINFO
         WHERE  DATES < @TODATE)
SELECT *
FROM   DATEINFO
OPTION (MAXRECURSION 0)

I tried so many ways, but didn’t find any that worked.

I’m Using

declare @adate datetime
DECLARE @FROMDATE DATETIME 
DECLARE @TODATE DATETIME 
select @FROMDATE=getdate()
select @TODATE =getdate()+7

declare @weekdates cursor for
WITH DATEINFO(DATES) AS (SELECT @FROMDATE UNION ALL SELECT DATES + 1 FROM DATEINFO WHERE DATES < @TODATE) 
SELECT * FROM DATEINFO OPTION (MAXRECURSION 0)

open @weekdates
fetch next from @weekdates into @adate
while @@fetch_status=0
begin
print 'success'
fetch next from @weekdates into @adate
end
close @weekdates
deallocate @weekdates

Still I’m getting errors

Answer 1

Just put it in before the common table expression:

DECLARE @FROMDATE DATETIME 
DECLARE @TODATE DATETIME 
select @FROMDATE=getdate()
select @TODATE =getdate()+7

declare boris cursor for

WITH DATEINFO(DATES)
     AS (SELECT @FROMDATE
         UNION ALL
         SELECT DATES + 1
         FROM   DATEINFO
         WHERE  DATES < @TODATE)
SELECT *
FROM   DATEINFO
OPTION (MAXRECURSION 0) 

(However, insert usual cautions about cursors almost always being the wrong tool for the job. If you can find a way to do the whole operation in a set based manner, it’s usually preferable, and likely to perform better (or at least be more amenable to performance tuning))