sql 中 datetime日期类型字段比较
mysql
可以直接用大于号，也可以用 between and
SELECT * FROM staff WHERE UPDATE_DATE >= \'2019-08-14 11:41:09\' AND UPDATE_DATE <= \'2019-08-14 11:41:11\'; SELECT * FROM staff WHERE UPDATE_DATE BETWEEN \'2019-08-14 11:41:09\' AND \'2019-08-14 11:41:11\';
Oracle
转：
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 * from up_date where update <= to_date(\'2007-09-07 00:00:00\',\'yyyy-mm-dd hh24:mi:ss\')
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 * from up_date where update >= to_date(\'2007-09-07 00:00:00\',\'yyyy-mm-dd hh24:mi:ss\')
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 * 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\')