使用以下语句：O_CHAR(pubtime,'yyyymmdd HH:mm:ss')，例如：
select id,TO_CHAR(pubtime,'yyyymmdd HH:mm:ss'),content from bj_ref.gz_twinfo_ref where user_id=2603 and TO_CHAR(pubtime,'yyyymmdd HH:mm:ss')>='20140704 20:58:42' and author ='南方日报' order by id asc;
即可。
使用以下语句：O_CHAR(pubtime,'yyyymmdd HH:mm:ss')，例如：
select id,TO_CHAR(pubtime,'yyyymmdd HH:mm:ss'),content from bj_ref.gz_twinfo_ref where user_id=2603 and TO_CHAR(pubtime,'yyyymmdd HH:mm:ss')>='20140704 20:58:42' and author ='南方日报' order by id asc;
即可。