Question

I have to get data from an Oracle Database that are 2 weeks older from to-date.

Its a complex query and I have this condition in the where clause.

I have tried to use between. But in vain . I am sure I’m making some silly mistake in working out the between.

to_date(to_char(sysdate,'yyyy') || to_char(sgs.status_Date,'mmdd'),'yyyymmdd' )
    between (trunc(sysdate)) and trunc(sysdate) - 14

Any help would be very much appreciated.

Answer 1

As @valex says, you need to swap the order of the expressions. As the documentation for the BETWEEN condition says:

… the value of

expr1 BETWEEN expr2 AND expr3

is the value of the boolean expression:

expr2 <= expr1 AND expr1 <= expr3

Your version has

your_date between trunc(sysdate) and (trunc(sysdate) - 14)

which is equivalent to

trunc(sysdate) <= your_date and your_date <= (trunc(sysdate) - 14)

… which can never be true – your_date would have to simultaneously be after today, and before two weeks ago.