select to_date('Fri Apr 04 15:03:51 2014','Dy Mon DD HH24:MI:SS YYYY') from dual;
ORA-01846 周中的日无效
select to_date('Fri Apr 04 15:03:51 2014','Dy Mon DD HH24:MI:SS YYYY','NLS_DATE_LANGUAGE = American') from dual;
2014/4/4 15:03:51
select to_date('星期五 4月 04 15:03:51 2014','Dy Mon DD HH24:MI:SS YYYY') from dual;
2014/4/4 15:03:51
可参考: http://blog.sina.com.cn/s/blog_6b0ad4a601011knj.html