Try to update a table using resultset and nothing happens

Question

I am trying to update a table in my database.
I already know the row I want to update by the reporttrikid in the where clause.
Nothing happens when I run this code. It does not fail but my table never gets updated.
I have done inserts and selects with no problem, but I must be doing something wrong when it comes to an update.
Can someone please help?
try
conn = XCConfig.getInstance().getConnection();
logger.debug("connection: " + conn);
sql = "UPDATE " + REPORTTABLE + " SET " + REPORTTRKMISC + "=?" +
" WHERE " + REPORTTRKID + "=?" ;
logger.debug(sql);
stmt = conn.prepareStatement(sql);
logger.debug("sql TRKID: " + "");
Iterator it = List.iterator();
while (it.hasNext()){
     XCDocPriceFilter filter = (XCDocPriceFilter) it.next();
//filterTrkId = filter.getTRKId();
     //trkid = Integer.parseInt(filterTrkId);
trkid = filter.getTRKId();
logger.debug("Update trkid: " + trkid);
stmt.setString(1,trkMisc);
stmt.setInt(2,trkid);
rs = stmt.executeQuery();
}//end iterator
rc = true;
}

Answer 1

I am still not getting anything updated.
I am using the following code.
int updateCount = stmt.executeUpdate();
logger.debug(updateCount + " records were updated!");
The logger says it has been updated, when I go to the
table the table has not changed.Is your connection in auto-commit mode? Maybe it hasn't committed it (yet). Did you also remember to close your JDBC resources (rs, stmt, conn)?