How to give Hard(strong) criteria to an SQL string

Question

Hi,
As a beginner I have to give hard criterias (as java.sql.date format) into an SQL string query, but i don't know how to do that (and if it is possible).
Basicaly, I want to set up an SQL string with a predefined function, let's see an ie:
String myQuery="SELECT MyFields FROM MyTable Where MyFields>=TO_Date('2001/07/09 08:00:00','YYYY/MM/DD HH24:MI:SS')"; //For an Oracle function
When I did that the compiler return me an error message as SQLException: UNexpected extra tokken: (
Can someone help me ?
Thanks
STF

Answer 1

The easiest way to perform SQL queries is using a PreparedStatement, especially if you use the same query again and again:
PreparedStatement pstmt = conn.prepareStatement("SELECT MyFields FROM MyTable WHERE MyFields >= ?");
Date date = new Date(); // Or however you create your date criterion
pstmt.setDate(1, date);
ResultSet rs = pstmt.executeQuery();The PreparedStatement will take care of formatting the date for you. In most cases it's the best way to format SQL statements since you don't really care about the actual SQL being used and you don't need to know much about the underlying DBMS.
Hope this helps.