求助,关于SQL的语句问题,救命用的!!
select * from atdrecord where cardno='04043' and recdate between '2007-11-01' and '2007-11-30'update atdrecord set
rectime='14:53' where cardno='04043' and rectime='15:01'and recdate='2008-06-23'
insert into atdrecord(emplid,cardno,recdate,rectime,isauto,verifymode,equno,inouttype,operid,operdate) values
('00000070','04043','2008-06-25','22:32',2,1,'001',2,'sa','2008-06-26 16:57:36')
上面是一个前辈写给我的,现在他人不在了,这是更改我们考勤的数据库用的,用于更改考勤时间.谁能帮帮我,解释一下这些语句要怎么用,里面的时间要怎么改,谢谢啦,,,各位大侠救命呀~~小女子不胜感激.