checking for compatibility of dates in servlet

[ammuswar kumar]

sir
i have a teble in a database with fields
1.id
2.tdate (dd/mm/yy)
3.title
how do i check for equality compatibility of tdate with system date)
select * from table where tdate = system date //----> some other format
is there any way to make them both compatible with each other so they could be checked for equality.(using java or java servlet)