我输出了,不等于NULL!
Class.forName("sun.jdbc.odbc.JdbcOdbcDriver");
Connection con = DriverManager.getConnection("jdbc:odbc:mydbs","sa","");
Statement stmt = con.createStatement();
sqlstr = "select * from tbl_user where name ='"+name+"'";
ResultSet rs = stmt.executeQuery(sqlstr);
如果查询为空,返回什么?rs = NULL???我输出了,不等于NULL!
为什么返回的集要按照列的顺序才能取出?修改一下顺序就unexpection condition?
我记得是可以不按顺序的呀?难道需要什么配置???
刚刚开始学啊!