不明SQL查询错误,求救
全表查询
select * from consumer
结果集
teng.xiao肖腾xiaotengMIS58010000
wei.yuan袁伟yuanweiMIS58011110

条件查询
select * from consumer where U_name = '肖腾 '
结果集
(全部null)

请教错在哪里啊

[解决办法]
try

select * from consumer where U_name = N '肖腾 '