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ѧϰOracleʱ£¬Äã¿ÉÄÜ»áÓöµ½oracle±í¿Õ¼ä»Ö¸´ÎÊÌ⣬ÕâÀォ½éÉÜOracle±í¿Õ¼ä»Ö¸´ÎÊÌâµÄ½â¾ö·½·¨£¬ÔÚÕâÀïÄóöÀ´ºÍ´ó¼Ò·ÖÏíһϡ£
Oracle±í¿Õ¼ä»Ö¸´·½°¸
Ò».Óû§±í¿Õ¼ä
´íÎó:
ÔÚÆô¶¯Êý¾Ý¿âʱ³öÏÖora-01157,ora-01110»ò²Ù×÷ϵͳ¼¶´íÎóÀýÈçora-07360, ÔڹرÕÊý¾Ý¿â(ʹÓÃshutdown normal»òshutdown immediate) ʱ½«µ¼Ö´íÎóora -01116,ora-01110ÒÔ¼°²Ù×÷ϵͳ¼¶´íÎóora-07368
ÒÔÏÂÓÐÁ½ÖÖ½â¾ö·½°¸:
1.Óû§µÄ±í¿Õ¼ä¿ÉÒÔ±»ÇáÒ×µØÖؽ¨ ¼´×î½üµ¼³öµÄ¶ÔÏóÊÇ¿ÉÓõĻò±í¿Õ¼äÖеĶÔÏó¿ÉÒÔ±»ÇáÒ×µØÖؽ¨µÈ.ÔÚ ÕâÖÖÇé¿öÏÂ,×î¼òµ¥µÄ·½·¨ÊÇoffline²¢É¾³ý¸ÃÊý¾ÝÎļþ,ɾ³ý±í¿Õ¼ä²¢ ÖØ½¨±í¿Õ¼äÒÔ¼°ËùÓеĶÔÏó.
svrmgrl> startup mount
svrmgrl> alter database datafile filename offline drop;
svrmgrl> alter database open;
svrmgrl> drop tablespace tablespace_name including contents;
ÖØ½¨±í¿Õ¼ä¼°ËùÓжÔÏó.
2.Óû§µÄ±í¿Õ¼ä²»Äܹ»±»ÇáÒ×µØÖؽ¨ÔÚ´ó¶àÊýÇé¿öÏÂ,ÖØ½¨±í¿Õ¼äÊDz»¿ÉÄܼ°Ì«ÐÁ¿àµÄ¹¤×÷.·½·¨Êǵ¹±¸·Ý¼°×ö½éÖʻָ´.Èç¹ûÄúµÄϵͳÔËÐÐÔÚnoarchivelogģʽÏÂ,ÔòÖ»ÓжªÊ§µÄÊý¾Ý ÔÚonline redo logÖз½¿É±»»Ö¸´¡£
²½ÖèÈçÏÂ:
1)restore the lost datafile from a backup
2)svrmgrl> startup mount
3)svrmgrl> select v1.group#,member,sequence#,first_change# > from v$log v1,v$logfile v2 > where v1.group#=v2.group#;
4)Èç¹ûÊý¾Ý¿âÔËÐÐÔÚnoarchivelogģʽÏÂÔò: svrmgrl> select file#,change# from v$recover_file;
Èç¹û change# ´óÓÚ×îСµÄfirst_change#ÔòÊý¾ÝÎļþ¿ÉÒÔ±»»Ö¸´¡£ Èç¹û change# СÓÚ×îСµÄfirst_change#ÔòÊý¾ÝÎļþ²»¿É»Ö¸´¡£ »Ö¸´×î½üÒ»´ÎµÄÈ«±¸·Ý»ò²ÉÓ÷½°¸Ò».
5)svrmgrl> recover datafile filename;
6)È·ÈÏOracle±í¿Õ¼ä»Ö¸´³É¹¦
7)svrmgrl> alter database open resetlogs;
3.Ö»¶Á±í¿Õ¼äÎÞÐè×ö½éÖʻָ´,Ö»Òª½«±¸·Ý»Ö¸´¼´¿É.ΨһµÄÀýÍâÊÇ:
±í¿Õ¼äÔÚ×îºóÒ»´Î±¸·Ýºó±»¸ÄΪread-write ģʽ
±í¿Õ¼äÔÚ×îºóÒ»´Î±¸·Ýºó±»¸ÄΪread-only ģʽ
ÔÚÕâÖÖÇé¿öÏÂ,¾ùÐè½øÐнéÖʻָ´
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ÁÙʱ±í¿Õ¼ä²¢²»°üº¬ÕæÕýµÄÊý¾Ý,»Ö¸´µÄ·½·¨ÊÇɾ³ýÁÙʱ±í¿Õ¼ä²¢Öؽ¨¼´¿É.
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ÓÐÁ½ÖÖÇé¿ö:
1¡¢Êý¾Ý¿âÒѾ­ÍêÈ«¹Ø±Õ(ʹÓÃshutdown immediate»òshutdownÃüÁî)
1) È·ÈÏÊý¾Ý¿âÍêÈ«¹Ø±Õ
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