Default JDBC date format when reading date as a string from ResultSet

Question

I\'m looking at some code that basically does the following:

ResultSet rs = ps.executeQuery();
String myDateStr = rs.getString(\"MY_DATE\"); //field is of ty         


        

Answer 1

For the Oracle JDBC driver I am using, the format is hard-coded in the driver library, so should only differ across systems if different driver versions are in use.

See my attempt to get an answer to the same question here: Where is the date format specified when reading a date as a string from JDBC ResultSet.

(Apologies for asking a separate question, but as your question had been answered multiple times with the ever-helpful "just don't do that" response, I tried again...).

Answer 2

try this:

ResultSet rs = ps.executeQuery();

Date myDate = rs.getDate("MY_DATE"); 

or this :

ResultSet rs = ps.executeQuery();
String myDateStr = rs.getString("MY_DATE"); 
Date myDate = valueOf(myDateStr);

More about date: http://docs.oracle.com/javase/7/docs/api/java/sql/Date.html
More about ResultSet : http://docs.oracle.com/javase/7/docs/api/java/sql/ResultSet.html

Answer 3

Instead of using

String myDateStr = rs.getString("MY_DATE") 

you should use

Timestamp timestamp = rs.getTimestamp("MY_DATE");

JDBC / Database will handle the date transformation for you.

Answer 4

If the field is of type Date, then read it as a java.sql.Date and do whatever conversion you need after that. Otherwise you're at the mercy of the database implementation.