select * from malorder jon(select mastername from master where jobnum = 03)m
on (malorder.mastername = m.mastername).
怎样把上面语句写到String sql=""里面
类似的在dos窗口输入select * from malorder where job = 03;
但是在jsp页面中需要写成String sql = :“select * from malorder where job =” + 03;
sql语句会写,但是不会把它写入jsp中