标签:
IT/科技 |
oracle sql日期比较:
在今天之前:
select * from up_date where update < to_date( '2007-09-07 00:00:00 ','yyyy-mm-dd hh24:mi:ss ')
select * from up_date where update <= to_date( '2007-09-07 00:00:00 ','yyyy-mm-dd hh24:mi:ss ')
select
在今天只后:
select * from up_date where update > to_date( '2007-09-07 00:00:00 ','yyyy-mm-dd hh24:mi:ss ')
select * from up_date where update >= to_date( '2007-09-07 00:00:00 ','yyyy-mm-dd hh24:mi:ss ')
select
精确时间:
select * from up_date where update = to_date( '2007-09-07 00:00:00 ','yyyy-mm-dd hh24:mi:ss ')
在某段时间内:
select * from up_date where update between 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 where update < to_date( '2007-09-07 00:00:00 ','yyyy-mm-dd hh24:mi:ss ') and update > to_date( '2007-07-07 00:00:00 ','yyyy-mm-dd hh24:mi:ss ')
select * from up_date where update <= to_date( '2007-09-07 00:00:00 ','yyyy-mm-dd hh24:mi:ss ') and update >= to_date( '2007-07-07 00:00:00 ','yyyy-mm-dd hh24:mi:ss ')
select
select
前一篇:什么是PDM系统?