mysql 问题，找不到原因啊。

同一个SQL语句用Native Formysql查不出数据，用cmd命令却可以查的出，什么情况？
select   Number as 学号,
sum(case `Subject` when '数学' then Sources end) as '数学',
sum(case `Subject` when '英语' then Sources end) as '英语',
sum(case `Subject` when '语文' then Sources end) as '语文',
sum(case `Subject` when '物理' then Sources END) as '物理',
sum(case `Subject` when '化学' then sources end) as '化学',
sum(case `Subject` when '生物' then sources end) as '生物',
sum(case `Subject` when '政治' then Sources end) as '政治',
sum(case `Subject` when '历史' then Sources end) as '历史',
sum(case `Subject` when '地理' then Sources end) as '地理',
SUM(Sources) as 总分, AVG(Sources) as 平均分
from   test
group   by   Number;

表结构：
CREATE TABLE `test` (
  `id` int(11) NOT NULL AUTO_INCREMENT,
  `Number` int(11) DEFAULT NULL,
  `Subject` char(20) DEFAULT NULL,
  `Sources` int(11) DEFAULT NULL,
  PRIMARY KEY (`id`)
)