Truncated incorrect DOUBLE value

mysql  + Eclipse   报错 Truncated incorrect DOUBLE value

解决方法: 

String sql = "update Department set dname=? and dintro=? where did=?; " 

改为   String sql = "update Department set dname=?, dintro=? where did=?; ";

当修改多个列的值, 需要用 " , " 连接  而不是用 "and"