1.手工归档时报出如下错误
sys@orcl> alter system archive log current;
alter system archive log current
*
ERROR at line 1:
ORA-00258: manual archiving in NOARCHIVELOG mode must identify log

2.alert警告日志中同样记录了这个错误
Sun Apr 18 14:08:40 2010
Errors in file /oracle/admin/orcl/udump/orcl_ora_25744.trc:
ORA-00258: manual archiving in NOARCHIVELOG mode must identify log

3.关于ORA-00258错误的解释信息
1）使用oerr工具查看该错误描述
orcl@luckystardb /home/oracle$ oerr?ora?258
00258, 00000, "manual archiving in NOARCHIVELOG mode must identify log"
// *Cause: The database is in NOARCHIVELOG mode and a command to manually
//????????? archive a log did not specify the log explicitly by sequence
//????????? numb