程序代码执行下面的HQL语句，发现3月31日的记录无法查询到，百思不得其解。
引用内容
后来发现数据库是以03月31日00:00:00为截止点，所以需要修改为：
引用内容
引用内容select count(a.click) from Article as a where (a.sendTime between '2009-03-01' and '2009-03-31') and a.admin=56 and (a.state=1)
后来发现数据库是以03月31日00:00:00为截止点，所以需要修改为：
引用内容select count(a.click) from Article as a where (a.sendTime between '2009-03-01' and '2009-03-31 23:59:59') and a.admin=56 and (a.state=1)
