Date Format Question - calling a store procedure from java side

Question

What is the best approach to handle a DATE as an IN parameter to a procedure?
1) emp table has a column called hire_date and its data type is DATE;
2) the procedure tried to retrieve all employees hired on a specific date, so there will be an IN parameter called p_hire_date, what data type should it use? Something like p_hire_date          IN     emp.HIRE_Date%TYPE? <== is this correct?
3) so inside the procedure body, when retrieving the record,
SELECT first_name, last_name
FROM EMP
Where hire_date = p_hire_date <==is this correct? or when do I use to_date()?
4) On the Java side, when calling this procedure, what data type should the hire_date use?
Thanks,
new2Oracle

Answer 1

new2Oracle wrote:
it seems our java team passed the hire_date as a string, so in this case, i should make the following change
1) p_hire_date IN varchar2
2) in the SELECT statement, it will be like
select fname, lname
from emp
where hire_date = to_date(p_hire_date, 'MM/DD/YYYY') <== the hire date is stored in the table as 1/1/2005
Would the change above work?
Thanks,Yes it would , but:
if it was 01/03 is this jan 3rd, or mar 1st
Bets way is to pass in to parameters
p_hire_date=>1/1/2005
p_date_format=>'mm/dd/yyyy';
then your code can say in initialisation section
v_hire_date varchar2(30)  := to_date(p_hire-date,p_date_format);and no more conversions in your code.
select fname, lname
from emp
where hire_date = v_hire_date;Much clearer this way, I think.