using = with to_date function fails to get results

Hi all
I have the table for more visits. my table has two fields survey_id (number) and visit_date (date).
the visit_date also contain the time visiting hh.
When I query the table to find information for a day and using the following qyery:
Select survey_id, visit_date
from my_table
where visit_date = to_date('26/04/2010','DD/MM/YYYY');
Therefore, no data found
but when I used another query such as
Select survey_id, visit_date
from my_table
where visit_date > to_date('25/04/2010','DD/MM/YYYY');
There are records to date 26/04/2010.
In other words, always when I query the table for a day using
visit_date = to_date(:my_date,'DD/mm/YYYY');
Although there is data in the table, there is no return data.
is the problem because the time HH exisits visit_date field.
any help please.

Published by: M.Jabr on May 5, 2010 06:12

Hello

M.Jabr wrote:
is the problem because the time HH exisits visit_date field.

Yes.

Use the TRUNC function to eliminate the part of hour:

trunc(visit_date) = to_date('26/04/2010','DD/MM/YYYY')

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