The modification was explicitly excellent, i had been looking for osmething like this since long, very happy to see it (never thought the date format can be accepetd as a parameter , but I am new to Oracle anyway). Thanks a lot.

Here’s how I modified it.

CREATE OR REPLACE FUNCTION ISDATE
(
ip_date in varchar2,
date_format in varchar2 default ‘yy-mm-dd’)
return date
is
begin
return to_date(ip_date,date_format);
exception
when others
then return null;
end isdate;