*、oracle之更新时间字段设置为某一特定时间
update table_name p set p.LAST_DATE = "TO_DATE"('2017-02-22 11:41:18','yyyy-mm-dd hh24:mi:ss')
*、oracle之更新时间字段设置为某一秒后的时间
select to_date('02-22-08 10:30:30','mm-dd-yy hh24:mi:ss') today,
to_date('02-22-08 10:30:30','mm-dd-yy hh24:mi:ss')+ 1/(24*60*60) next_sec
from dual;
引自:http://blog.youkuaiyun.com/t123012009065/article/details/8243152