oracle sql日期比较:
在今天之前:
select*from up_date whereupdate< to_date('2007-09-07 00:00:00','yyyy-mm-dd hh24:mi:ss')
select*from up_date whereupdate<= to_date('2007-09-07 00:00:00','yyyy-mm-dd hh24:mi:ss')
select*from up_date whereupdate<= to_date('2007-09-07 00:00:00','yyyy-mm-dd hh24:mi:ss')
在今天只后:
select*from up_date whereupdate> to_date('2007-09-07 00:00:00','yyyy-mm-dd hh24:mi:ss')
select*from up_date whereupdate>= to_date('2007-09-07 00:00:00','yyyy-mm-dd hh24:mi:ss')
select*from up_date whereupdate>= to_date('2007-09-07 00:00:00','yyyy-mm-dd hh24:mi:ss')
精确时间:
select*from up_date whereupdate= to_date('2007-09-07 00:00:00','yyyy-mm-dd hh24:mi:ss')
在某段时间内:
select*from up_date whereupdatebetween to_date('2007-07-07 00:00:00','yyyy-mm-dd hh24:mi:ss') and to_date('2007-09-07 00:00:00','yyyy-mm-dd hh24:mi:ss')
select*from up_date whereupdate< to_date('2007-09-07 00:00:00','yyyy-mm-dd hh24:mi:ss') andupdate> to_date('2007-07-07 00:00:00','yyyy-mm-dd hh24:mi:ss')
select*from up_date whereupdate<= to_date('2007-09-07 00:00:00','yyyy-mm-dd hh24:mi:ss') andupdate>= to_date('2007-07-07 00:00:00','yyyy-mm-dd hh24:mi:ss')
select*from up_date whereupdate< to_date('2007-09-07 00:00:00','yyyy-mm-dd hh24:mi:ss') andupdate> to_date('2007-07-07 00:00:00','yyyy-mm-dd hh24:mi:ss')
select*from up_date whereupdate<= to_date('2007-09-07 00:00:00','yyyy-mm-dd hh24:mi:ss') andupdate>= to_date('2007-07-07 00:00:00','yyyy-mm-dd hh24:mi:ss')