SQL Query error in java swing Application

Question

hi,
I'm getting the following error when i try to manipulate the date in query.I have set of tuples and would like to retrieve with respect to the date given.Please do help me to get rid of this error.This is the error.
MY QUERY:
ResultSet rsdate=st1.executeQuery("select * from phy_stock where date = "+d1+"");
Where d1 is given like this:
String startdate[2]="11/31/2008";
DateFormat df = new SimpleDateFormat ("MM/dd/yyyy"); //converting a string to DATE format.
Date d1 = df.parse(startdate[2]);
ERROR:
java.sql.SQLException: [Microsoft][ODBC Microsoft Access Driver] Syntax error (missing operator) in query expression 'date = Mon Sep 01 00:00:00 IST 2008'
thanks,
kumar.

Answer 1

Dates do not have formats. When referencing a Date in String concatenation, which is what you are doing here,
ResultSet rsdate=st1.executeQuery("select * from phy_stock where date = " + d1 + "");you will get what Date's toString method produces, which will not work for that (or any) query. For one, it wouldn't be surrounded by single quotes ('), and for two, the String format of the Date would not be acceptable by the DB (unless you had changed the DBs defaults).
Use a PreparedStatement, as suggessted above, and this problem goes away.
Edit: And make sure to use the setDate method, of course.