This week's book giveaway is in the OCAJP 8 forum. We're giving away four copies of OCA Java SE 8 Programmer I Study Guide and have Edward Finegan & Robert Liguori on-line! See this thread for details.
If you want to update a DATE datatype (I'm guessing thats what the Interview_Date field's data type is, correct me if I'm wrong) and you are doing it with a Statement, you need to make sure that the format of the String you use to represent the date matches the format defined in the database. Now you could do this, or you could use a TO_DATE PL/SQL function, but far better is to use a PreparedStatement and bind the date. Then the format does not matter.