首先需要用logminer查出删除语句:
uncompress /oracle/oradata/xxx/xxx.ARC.Z
...
begin
sys.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;
然后在生产库上创建pfile:
create pfile='...' from spfile;
需要从带库上恢复rman备份集至生产机上,将此备份集FTP至测试机上,连同pfile文件.
在测试机上创建与生产机上相同目录,admin ...
在测试机上创建新实例:
orapwd file=... password=xxx
然后修改pfile文件内容,改变control_files内容。
启动新实例:
export ORACLE_SID=xxx
sqlplus / as sysdba
startup nomount pfile='/home/oracle/init_xxx.ora';
create spfile from pfile='/home/oracle/init_xxx.ora';
exit
RMAN target sys/xxx
restore 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:发现单个datafile恢复不如整库恢复快!)
sql 'alter database backup controlfile to trace';
shutdown immediate;
exit
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