To_char(adate,'dd.mm.yyyy') returns different results from two oracle clients !!! Is it possible?

Question

Dear all;
We have only one Database server with some IIS's   as web servers on front . Each web server has own oracle client software in order connect to central database..
The same following query used in C#  code  returns different results on each IIS server.(3 row, or  not data found )
why?
select     *    from    aTable    where        to_char( adate ,  'dd.mm.yyyy' )  =   :search_date
regards
Siya

Answer 1

1006237 wrote:
If adate is of DATE datatype, it will most likely has the time component. Therefore your SQL below is unlikely to return any data.
select * from aTable where adate = to_date(:search_date, 'dd.mm.yyyy')
Perhaps.....
select * from aTable where TRUNC(adate) = to_date(:search_date, 'dd.mm.yyyy')
Hi,
not having any sample data from you I could not understand that you wanted to select the range 00:00:00 - 23:59:59 on search_date.
Your method might not be efficient if you have an index on adate.
Maybe something like this will be more efficient
select * from aTable
where adate >= to_date(:search_date, 'dd.mm.yyyy')
  and adate <  to_date(:search_date, 'dd.mm.yyyy') + 1;
If you search_date is 30-Aug-2013 it will get records where adate >= 30-Aug-2013 00:00:00 and adate < 31-Aug-2013 00:00:00, so any time of date 30-Aug-2013.
Try like this and let us know if you still have 2 different results.
Regards.
Alberto