今天所遇之琐事

今日所遇之琐事
今天浪费时间有三件事
1.ibatis null 返回 问题
select max(id) from customer
改
select nvl(max(id),0) from customer

jquery validate
debug:true
success:function(){}

ibatis
select * from #tableName#
change to
select * from $tableName$