Hibernate Query to fetch records on date ignoring timestamp

Question

I have a timestamp column tradedate in one of the DB(Oracle) tables. I am using hibernate as the persistence layer to fetch and store Data to DB. I have a requirement in which I need to query the DB on date. i.e From UI the user passes a date and I need to get the filtered data based on this date.

If the tradedate column only has the date part my query returns the correct records The issue arises when the tradedate column is populated with a timestamp value ie(date + time). Then those values are not returned by the query.

eg:say there are 10 records for 23rd Oct 2010 in DB 5 of them have the timestamp entries and 5 dont

So the query which i have returns me only the 5 rows which dont have timestamp.

Now i know that i need to extract date from the timestamp and then do the comparision so that i get all the records for aprticular date but i dont know how its done with Hibernate and using HQL

the query in Java/Hibernate that i am using is as follows

String hql = "select Clearing from POJO as POJO where POJO.tradeDate = :date"; Query query = getSession().createQuery(hql); query.setParameter("date", date);

Answer 1

String hql = "from POJO as POJO where to_date(to_char(POJO.tradeDate, 'DD-MON-YY'), 'DD-MON-YY') = :date"; 
Query query = getSession().createQuery(hql); 
query.setParameter("date", date);