uncomPRess /Oracle/oradata/xxx/xxx.ARC.Z ...beginsys.dbms_logmnr.add_logfile('/oracle/oradata/xxx/xxx.ARC');...end;begin sys.dbms_logmnr.start_logmnr(Options => sys.dbms_logmnr.DICT_FROM_ONLINE_CATALOG); end;create table xsb_logminer_1 as select timestamp, seg_name,Operation, sql_redo from V$LOGMNR_CONTENTS where seg_owner='XXX' and operation='DDL' and sql_redo like 'ALTER TABLE XXX DROP PARTITION %';BEGIN sys.dbms_logmnr.end_logmnr();END;
◆然后在生產庫上創建pfile：
create pfile='...' from spfile;
需要從帶庫上恢復rman備份集至生產機上,將此備份集FTP至測試機上，連同pfile文件.
在測試機上創建與生產機上相同目錄，admin ...
在測試機上創建新實例：
orapwd file=... passWord=xxx
然后修改pfile文件內容，改變control_files內容。
◆啟動新實例
export ORACLE_SID=xxxsqlplus / as sysdbastartup nomount pfile='/home/oracle/init_xxx.ora';create spfile from pfile='/home/oracle/init_xxx.ora';exitRMAN target sys/xxxrestore controlfile from '...';startup mount--crosscheck backup;list backup;run {set newname for datafile 1 to '/oracle/oradata/xxx/system01.dbf';set newname for datafile 2 to '/oracle/oradata/xxx/undo01.dbf';set newname for datafile 3 to '/oracle/oradata/xxx/sysaux01.dbf';set newname for datafile 6 to '/oracle/oradata/xxx/pay_ts01.dbf';restore datafile 1;restore datafile 2;restore datafile 3; restore datafile 6;}(注：發現單個datafile恢復不如整庫恢復快！)sql 'alter database backup controlfile to trace';shutdown immediate;exit
然后修改controlfile文件內容，去掉不用的文件名
◆不完全恢復數據庫:
sqlplus / as sysdbastartup nomount;
◆重建控制文件
CREATE CONTROLFILE REUSE DATABASE "XXX" RESETLOGS ARCHIVELOGMAXLOGFILES 40MAXLOGMEMBERS 3MAXDATAFILES 400MAXINSTANCES 2MAXLOGHISTORY 454LOGFILEGROUP 1 ('/oracle/oradata/xxx/rdb_redo01a') SIZE 10M,GROUP 2 ('/oracle/oradata/xxx/rdb_redo02a') SIZE 10MDATAFILE '/oracle/oradata/xxx/system01.dbf','/oracle/oradata/xxx/undo01.dbf','/oracle/oradata/xxx/sysaux01.dbf','/oracle/oradata/xxx/pay_ts01.dbf'CHARACTER SET ZHS16GBK;recover database until cancel using backup controlfile;...alter database open resetlogs;
◆做數據恢復操作:
create table xxx as select xxx from xxx where xxx;exp,ftp .dmp,imp
也可以如下所示，這樣會更簡單一些：
restore database;recover database using backup controlfile until cancel;alter database open resetlogs;...END!!!
