在一篇文章中看到RECOVER DATABASE SKIP TABLESPACE，可以跳过表空间，也就是可以恢复指定的表空间，那么在已超过了闪回查询的时间，但是需要恢复指定的数据，此时有完整的备份文件，并且数据库用户表空间比较多比较大时，这个命令就很有用了。把备份传到另一台服务器上，然后只用恢复系统表空间、UNDO表空间再加上要恢复数据库的用户表空间就可以了。
做个实验，先将PROD数据库中的scott.t1表清空，scott的默认表空间为users，数据库已开启归档并配置了rman备份，创建新的实例TWO,恢复scott.t1的数据。由于只有一台虚拟机，两个库在同一服务器中，
恢复步骤如下：
1、复制前一天的备份集；
2、在源库创建pfile文件，修改此文件后创建一个新的实例TWO；
3、rman还原指定表空间；
4、rman恢复跳过不需要的表空间；
5、read only数据库，查看数据是否恢复，如未恢复，重复第4步，直到找到数据为止；
Scott.t1已清空，备份集已复制，以下是恢复过程。
1、修改pfile文件，创建新实例。
*.audit_file_dest='/u01/app/oracle/admin/TWO/adump'
*.audit_trail='db'
*.compatible='11.2.0.4.0'
*.control_files='/u01/app/oradata/TWO/control01.ctl'
*.db_block_size=8192
*.db_domain=''
*.db_name='PROD'
*.diagnostic_dest='/u01/app/oracle'
*.dispatchers='(PROTOCOL=TCP) (SERVICE=PRODXDB)'
*.nls_territory='CHINA'
*.open_cursors=300
*.pga_aggregate_target=61756748
*.processes=300
*.remote_login_passwordfile='EXCLUSIVE'
*.sessions=300
*.sga_target=507374182
*.sga_max_size=1073741824
*.undo_tablespace='UNDOTBS1'
*.nls_language='AMERICAN'
创建目录
mkdir /u01/app/oracle/admin/TWO/adump
mkdir /u01/app/oracle/oradata
2、实例TWO启动到nomount状态
[oracle@ora11g ~]$ export ORACLE_SID=TWO
SQL> startup nomount;
ORACLE instance started.
Total System Global Area 1068937216 bytes
Fixed Size 2260088 bytes
Variable Size 822084488 bytes
Database Buffers 239075328 bytes
Redo Buffers 5517312 bytes
3、rman还原数据库
[oracle@ora11g ~]$ export ORACLE_SID=TWO [oracle@ora11g ~]$ rman target / Recovery Manager: Release 11.2.0.4.0 - Production on Fri Nov 19 15:23:18 2021 Copyright (c) 1982, 2011, Oracle and/or its affiliates. All rights reserved. connected to target database: PROD (not mounted) RMAN> restore controlfile from '/home/oracle/RMANBAK/dbbak/ctl_file_qo0ehh33_1_1_20211119'; Starting restore at 19-NOV-21 allocated channel: ORA_DISK_1 channel ORA_DISK_1: SID=10 device type=DISK channel ORA_DISK_1: restoring control file channel ORA_DISK_1: restore complete, elapsed time: 00:00:01 output file name=/u01/app/oradata/TWO/control01.ctl Finished restore at 19-NOV-21RMAN> alter database mount; RMAN-00571: =========================================================== RMAN-00569: =============== ERROR MESSAGE STACK FOLLOWS =============== RMAN-00571: =========================================================== RMAN-03002: failure of alter db command at 11/19/2021 15:26:16 ORA-01102: cannot mount database in EXCLUSIVE mode
这个错误是由于主机上已有一个数据库PROD,在Oracle_home/dbs目录中已存在lkPROD文件，这个文件会阻止两个实例mount同一数据库，查看文件内容只有一句话：
DO NOT DELETE THIS FILE!
db_name是不能更改的，否则会与备份集中控制文件不一致。
那么更改pfile文件，添加db_unique_name=TEST,重新启动数据库到nomount状态后restore。
更改后的pfile文件
*.audit_file_dest='/u01/app/oracle/admin/TWO/adump'
*.audit_trail='db'
*.compatible='11.2.0.4.0'
*.control_files='/u01/app/oradata/TWO/control01.ctl'
*.db_block_size=8192
*.db_domain=''
*.db_name='PROD'
*.db_unique_name='TEST'
*.diagnostic_dest='/u01/app/oracle'
*.dispatchers='(PROTOCOL=TCP) (SERVICE=SCPRDXDB)'
*.nls_territory='CHINA'
*.open_cursors=300
*.pga_aggregate_target=61756748
*.processes=300
*.remote_login_passwordfile='EXCLUSIVE'
*.sessions=300
*.sga_target=507374182
*.sga_max_size=1073741824
*.undo_tablespace='UNDOTBS1'
*.nls_language='AMERICAN'
TWO实例启动到Nomount状态后，发现dbs目录中新生成了lkTEST文件，这个名字是按db_unique_name来的。
[oracle@ora11g dbs]$ ll total 879972 -rw-r----- 1 oracle oinstall 155098624 Nov 14 03:00 arch1_168_1081291239.dbf -rw-r----- 1 oracle oinstall 1024 Nov 14 03:00 arch1_169_1081291239.dbf -rw-r----- 1 oracle oinstall 166820352 Nov 15 03:00 arch1_170_1081291239.dbf -rw-r----- 1 oracle oinstall 1024 Nov 15 03:00 arch1_171_1081291239.dbf -rw-r----- 1 oracle oinstall 125941760 Nov 16 03:00 arch1_172_1081291239.dbf -rw-r----- 1 oracle oinstall 1024 Nov 16 03:00 arch1_173_1081291239.dbf -rw-r----- 1 oracle oinstall 159354368 Nov 17 03:00 arch1_174_1081291239.dbf -rw-r----- 1 oracle oinstall 1024 Nov 17 03:00 arch1_175_1081291239.dbf -rw-r----- 1 oracle oinstall 147319808 Nov 18 03:00 arch1_176_1081291239.dbf -rw-r----- 1 oracle oinstall 1024 Nov 18 03:00 arch1_177_1081291239.dbf -rw-r----- 1 oracle oinstall 136742400 Nov 19 03:00 arch1_178_1081291239.dbf -rw-r----- 1 oracle oinstall 1024 Nov 19 03:00 arch1_179_1081291239.dbf -rw-rw---- 1 oracle oinstall 1544 Nov 19 15:57 hc_PROD.dat -rw-rw---- 1 oracle oinstall 1544 Nov 19 17:00 hc_TWO.dat -rw-r--r-- 1 oracle oinstall 2851 May 15 2009 init.ora -rw-r--r-- 1 oracle oinstall 586 Nov 19 16:15 initTWO.ora -rw-r----- 1 oracle oinstall 24 Nov 29 2020 lkPROD -rw-r----- 1 oracle oinstall 24 Nov 19 16:08 lkTEST -rw-r----- 1 oracle oinstall 1536 Jul 9 15:36 orapwPROD -rw-r----- 1 oracle oinstall 9748480 Nov 19 03:00 snapcf_PROD.f -rw-r----- 1 oracle oinstall 3584 Nov 19 15:58 spfilePROD.ora
[oracle@ora11g ~]$ rman target / Recovery Manager: Release 11.2.0.4.0 - Production on Fri Nov 19 16:15:29 2021 Copyright (c) 1982, 2011, Oracle and/or its affiliates. All rights reserved. connected to target database: PROD (not mounted) RMAN> alter database mount; using target database control file instead of recovery catalog database mounted RMAN> list backup of controlfile; List of Backup Sets =================== BS Key Type LV Size Device Type Elapsed Time Completion Time ------- ---- -- ---------- ----------- ------------ --------------- 842 Incr 1 1.09M DISK 00:00:00 18-NOV-21 BP Key: 850 Status: AVAILABLE Compressed: YES Tag: PROD_LEV1 Piece Name: /home/oracle/RMANBAK/PROD_lev1_qc0eesn0_1_1_20211118 Control File Included: Ckp SCN: 8553093 Ckp time: 18-NOV-21 BS Key Type LV Size Device Type Elapsed Time Completion Time ------- ---- -- ---------- ----------- ------------ --------------- 845 Full 9.33M DISK 00:00:02 18-NOV-21 BP Key: 853 Status: AVAILABLE Compressed: NO Tag: BAK_CTLFILE Piece Name: /home/oracle/RMANBAK/ctl_file_qg0eesn3_1_1_20211118 Control File Included: Ckp SCN: 8553124 Ckp time: 18-NOV-21 BS Key Type LV Size Device Type Elapsed Time Completion Time ------- ---- -- ---------- ----------- ------------ --------------- 850 Incr 1 1.09M DISK 00:00:00 19-NOV-21 BP Key: 858 Status: AVAILABLE Compressed: YES Tag: PROD_LEV1 Piece Name: /home/oracle/RMANBAK/PROD_lev1_qk0ehh30_1_1_20211119 Control File Included: Ckp SCN: 8619449 Ckp time: 19-NOV-21 RMAN> catalog start with '/home/oracle/RMANBAK/dbbak 2> '; searching for all files that match the pattern /home/oracle/RMANBAK/dbbak List of Files Unknown to the Database ===================================== File Name: /home/oracle/RMANBAK/dbbak/PROD_lev0_pq0e9jtj_1_1_20211116 File Name: /home/oracle/RMANBAK/dbbak/PROD_lev0_pr0e9jtj_1_1_20211116 File Name: /home/oracle/RMANBAK/dbbak/arch_pv0e9juq_1_1_20211116 File Name: /home/oracle/RMANBAK/dbbak/PROD_lev1_q20ec89i_1_1_20211117 File Name: /home/oracle/RMANBAK/dbbak/PROD_lev1_q30ec89i_1_1_20211117 File Name: /home/oracle/RMANBAK/dbbak/arch_q60ec8b2_1_1_20211117 File Name: /home/oracle/RMANBAK/dbbak/arch_q70ec8b2_1_1_20211117 File Name: /home/oracle/RMANBAK/dbbak/PROD_lev1_qa0eeslj_1_1_20211118 File Name: /home/oracle/RMANBAK/dbbak/PROD_lev1_qb0eeslj_1_1_20211118 File Name: /home/oracle/RMANBAK/dbbak/arch_qe0eesn2_1_1_20211118 File Name: /home/oracle/RMANBAK/dbbak/arch_qf0eesn2_1_1_20211118 File Name: /home/oracle/RMANBAK/dbbak/PROD_lev1_qi0ehh1j_1_1_20211119 File Name: /home/oracle/RMANBAK/dbbak/PROD_lev1_qk0ehh30_1_1_20211119 File Name: /home/oracle/RMANBAK/dbbak/ctl_file_qo0ehh33_1_1_20211119 File Name: /home/oracle/RMANBAK/dbbak/arch_pu0e9juq_1_1_20211116 File Name: /home/oracle/RMANBAK/dbbak/PROD_lev1_ql0ehh30_1_1_20211119 File Name: /home/oracle/RMANBAK/dbbak/arch_qn0ehh32_1_1_20211119 File Name: /home/oracle/RMANBAK/dbbak/PROD_lev1_qj0ehh1j_1_1_20211119 File Name: /home/oracle/RMANBAK/dbbak/arch_qm0ehh32_1_1_20211119 File Name: /home/oracle/RMANBAK/dbbak/PROD_spfile_qp0ehh35_1_1_20211119 Do you really want to catalog the above files (enter YES or NO)? yes cataloging files... cataloging done List of Cataloged Files ======================= File Name: /home/oracle/RMANBAK/dbbak/PROD_lev0_pq0e9jtj_1_1_20211116 File Name: /home/oracle/RMANBAK/dbbak/PROD_lev0_pr0e9jtj_1_1_20211116 File Name: /home/oracle/RMANBAK/dbbak/arch_pv0e9juq_1_1_20211116 File Name: /home/oracle/RMANBAK/dbbak/PROD_lev1_q20ec89i_1_1_20211117 File Name: /home/oracle/RMANBAK/dbbak/PROD_lev1_q30ec89i_1_1_20211117 File Name: /home/oracle/RMANBAK/dbbak/arch_q60ec8b2_1_1_20211117 File Name: /home/oracle/RMANBAK/dbbak/arch_q70ec8b2_1_1_20211117 File Name: /home/oracle/RMANBAK/dbbak/PROD_lev1_qa0eeslj_1_1_20211118 File Name: /home/oracle/RMANBAK/dbbak/PROD_lev1_qb0eeslj_1_1_20211118 File Name: /home/oracle/RMANBAK/dbbak/arch_qe0eesn2_1_1_20211118 File Name: /home/oracle/RMANBAK/dbbak/arch_qf0eesn2_1_1_20211118 File Name: /home/oracle/RMANBAK/dbbak/PROD_lev1_qi0ehh1j_1_1_20211119 File Name: /home/oracle/RMANBAK/dbbak/PROD_lev1_qk0ehh30_1_1_20211119 File Name: /home/oracle/RMANBAK/dbbak/ctl_file_qo0ehh33_1_1_20211119 File Name: /home/oracle/RMANBAK/dbbak/arch_pu0e9juq_1_1_20211116 File Name: /home/oracle/RMANBAK/dbbak/PROD_lev1_ql0ehh30_1_1_20211119 File Name: /home/oracle/RMANBAK/dbbak/arch_qn0ehh32_1_1_20211119 File Name: /home/oracle/RMANBAK/dbbak/PROD_lev1_qj0ehh1j_1_1_20211119 File Name: /home/oracle/RMANBAK/dbbak/arch_qm0ehh32_1_1_20211119 File Name: /home/oracle/RMANBAK/dbbak/PROD_spfile_qp0ehh35_1_1_20211119 RMAN> run{ 2> sql 'alter session set nls_date_format="yyyy-mm-dd hh24:mi:ss"'; 3> set until time '2021-11-18 23:00:00'; 4> allocate channel ch01 device type disk; 5> allocate channel ch02 device type disk; 6> set newname for datafile 1 to '/u01/app/oradata/TWO/system01.dbf'; 7> set newname for datafile 2 to '/u01/app/oradata/TWO/sysaux01.dbf'; 8> set newname for datafile 3 to '/u01/app/oradata/TWO/undotbs01.dbf'; 9> set newname for datafile 4 to '/u01/app/oradata/TWO/users01.dbf'; 10> restore tablespace SYSTEM,SYSAUX,UNDOTBS1,USERS; 11> switch datafile all; 12> release channel ch01; 13> release channel ch02; 14> } sql statement: alter session set nls_date_format="yyyy-mm-dd hh24:mi:ss" executing command: SET until clause released channel: ORA_DISK_1 allocated channel: ch01 channel ch01: SID=10 device type=DISK allocated channel: ch02 channel ch02: SID=247 device type=DISK executing command: SET NEWNAME executing command: SET NEWNAME executing command: SET NEWNAME executing command: SET NEWNAME Starting restore at 19-NOV-21 channel ch01: starting datafile backup set restore channel ch01: specifying datafile(s) to restore from backup set channel ch01: restoring datafile 00001 to /u01/app/oradata/TWO/system01.dbf channel ch01: restoring datafile 00003 to /u01/app/oradata/TWO/undotbs01.dbf channel ch01: reading from backup piece /home/oracle/RMANBAK/PROD_lev0_pr0e9jtj_1_1_20211116 channel ch02: starting datafile backup set restore channel ch02: specifying datafile(s) to restore from backup set channel ch02: restoring datafile 00002 to /u01/app/oradata/TWO/sysaux01.dbf channel ch02: restoring datafile 00004 to /u01/app/oradata/TWO/users01.dbf channel ch02: reading from backup piece /home/oracle/RMANBAK/PROD_lev0_pq0e9jtj_1_1_20211116 channel ch01: piece handle=/home/oracle/RMANBAK/PROD_lev0_pr0e9jtj_1_1_20211116 tag=PROD_LEV0 channel ch01: restored backup piece 1 channel ch01: restore complete, elapsed time: 00:01:15 channel ch02: piece handle=/home/oracle/RMANBAK/PROD_lev0_pq0e9jtj_1_1_20211116 tag=PROD_LEV0 channel ch02: restored backup piece 1 channel ch02: restore complete, elapsed time: 00:01:15 Finished restore at 19-NOV-21 datafile 1 switched to datafile copy input datafile copy RECID=23 STAMP=1089046455 file name=/u01/app/oradata/TWO/system01.dbf datafile 2 switched to datafile copy input datafile copy RECID=24 STAMP=1089046455 file name=/u01/app/oradata/TWO/sysaux01.dbf datafile 3 switched to datafile copy input datafile copy RECID=25 STAMP=1089046455 file name=/u01/app/oradata/TWO/undotbs01.dbf datafile 4 switched to datafile copy input datafile copy RECID=26 STAMP=1089046455 file name=/u01/app/oradata/TWO/users01.dbf released channel: ch01 released channel: ch02 RMAN> run{ 2> sql 'alter session set nls_date_format="yyyy-mm-dd hh24:mi:ss"'; 3> set until time '2021-11-18 23:00:00'; 4> allocate channel ch01 device type disk; 5> recover database skip tablespace DATA1,DATA2,BMI,DATA3; 6> switch datafile all; 7> release channel ch01; 8> } sql statement: alter session set nls_date_format="yyyy-mm-dd hh24:mi:ss" executing command: SET until clause allocated channel: ch01 channel ch01: SID=10 device type=DISK Starting recover at 19-NOV-21 channel ch01: starting incremental datafile backup set restore channel ch01: specifying datafile(s) to restore from backup set destination for restore of datafile 00001: /u01/app/oradata/TWO/system01.dbf destination for restore of datafile 00003: /u01/app/oradata/TWO/undotbs01.dbf channel ch01: reading from backup piece /home/oracle/RMANBAK/PROD_lev1_q30ec89i_1_1_20211117 channel ch01: piece handle=/home/oracle/RMANBAK/PROD_lev1_q30ec89i_1_1_20211117 tag=PROD_LEV1 channel ch01: restored backup piece 1 channel ch01: restore complete, elapsed time: 00:00:03 channel ch01: starting incremental datafile backup set restore channel ch01: specifying datafile(s) to restore from backup set destination for restore of datafile 00002: /u01/app/oradata/TWO/sysaux01.dbf destination for restore of datafile 00004: /u01/app/oradata/TWO/users01.dbf channel ch01: reading from backup piece /home/oracle/RMANBAK/PROD_lev1_q20ec89i_1_1_20211117 channel ch01: piece handle=/home/oracle/RMANBAK/PROD_lev1_q20ec89i_1_1_20211117 tag=PROD_LEV1 channel ch01: restored backup piece 1 channel ch01: restore complete, elapsed time: 00:00:03 channel ch01: starting incremental datafile backup set restore channel ch01: specifying datafile(s) to restore from backup set destination for restore of datafile 00001: /u01/app/oradata/TWO/system01.dbf destination for restore of datafile 00003: /u01/app/oradata/TWO/undotbs01.dbf channel ch01: reading from backup piece /home/oracle/RMANBAK/PROD_lev1_qb0eeslj_1_1_20211118 channel ch01: piece handle=/home/oracle/RMANBAK/PROD_lev1_qb0eeslj_1_1_20211118 tag=PROD_LEV1 channel ch01: restored backup piece 1 channel ch01: restore complete, elapsed time: 00:00:03 channel ch01: starting incremental datafile backup set restore channel ch01: specifying datafile(s) to restore from backup set destination for restore of datafile 00002: /u01/app/oradata/TWO/sysaux01.dbf destination for restore of datafile 00004: /u01/app/oradata/TWO/users01.dbf channel ch01: reading from backup piece /home/oracle/RMANBAK/PROD_lev1_qa0eeslj_1_1_20211118 channel ch01: piece handle=/home/oracle/RMANBAK/PROD_lev1_qa0eeslj_1_1_20211118 tag=PROD_LEV1 channel ch01: restored backup piece 1 channel ch01: restore complete, elapsed time: 00:00:03 Executing: alter database datafile 5 offline Executing: alter database datafile 7 offline Executing: alter database datafile 6 offline Executing: alter database datafile 9 offline Executing: alter database datafile 10 offline Executing: alter database datafile 8 offline starting media recovery archived log for thread 1 with sequence 176 is already on disk as file /u01/app/oracle/product/11.2.0/dbhome_1/dbs/arch1_176_1081291239.dbf archived log for thread 1 with sequence 177 is already on disk as file /u01/app/oracle/product/11.2.0/dbhome_1/dbs/arch1_177_1081291239.dbf archived log for thread 1 with sequence 178 is already on disk as file /u01/app/oradata/PROD/redo2.log archived log file name=/u01/app/oracle/product/11.2.0/dbhome_1/dbs/arch1_176_1081291239.dbf thread=1 sequence=176 archived log file name=/u01/app/oracle/product/11.2.0/dbhome_1/dbs/arch1_177_1081291239.dbf thread=1 sequence=177 archived log file name=/u01/app/oradata/PROD/redo2.log thread=1 sequence=178 media recovery complete, elapsed time: 00:00:06 Finished recover at 19-NOV-21 released channel: ch01
4、检查数据,
[oracle@ora11g ~]$ export ORACLE_SID=PROD [oracle@ora11g ~]$ sqlplus / as sysdba SQL*Plus: Release 11.2.0.4.0 Production on Fri Nov 19 17:54:29 2021 Copyright (c) 1982, 2013, Oracle. All rights reserved. Connected to: Oracle Database 11g Enterprise Edition Release 11.2.0.4.0 - 64bit Production With the Partitioning, OLAP, Data Mining and Real Application Testing options SQL> SET LINE 222 SQL> select * from scott.t1; no rows selected [oracle@ora11g ~]$ export ORACLE_SID=TWO [oracle@ora11g ~]$ sqlplus / as sysdba SQL*Plus: Release 11.2.0.4.0 Production on Fri Nov 19 17:54:29 2021 Copyright (c) 1982, 2013, Oracle. All rights reserved. Connected to: Oracle Database 11g Enterprise Edition Release 11.2.0.4.0 - 64bit Production With the Partitioning, OLAP, Data Mining and Real Application Testing options SQL> select * from t1; select * from t1 * ERROR at line 1: ORA-01219: database not open: queries allowed on fixed tables/views only SQL> alter database open read only; Database altered. SQL> set line 222 SQL> select * from scott.t1; EMPNO ENAME JOB MGR HIREDATE SAL COMM DEPTNO ---------- -------------------- ------------------ ---------- ------------ ---------- ---------- ---------- 1111 JACK AAAA 0 11111 7369 SMITH CLERK 7902 17-DEC-80 800 20 7499 ALLEN SALESMAN 7698 20-FEB-81 1600 300 30 7521 WARD SALESMAN 7698 22-FEB-81 1250 500 30 7566 JONES MANAGER 7839 02-APR-81 2975 20 7654 MARTIN SALESMAN 7698 28-SEP-81 1250 1400 30 7698 BLAKE MANAGER 7839 01-MAY-81 2850 30 7782 CLARK MANAGER 7839 09-JUN-81 2450 10 7788 SCOTT ANALYST 7566 19-APR-87 3000 20 7839 KING PRESIDENT 0 17-NOV-81 5000 10 7844 TURNER SALESMAN 7698 08-SEP-81 1500 0 30 EMPNO ENAME JOB MGR HIREDATE SAL COMM DEPTNO ---------- -------------------- ------------------ ---------- ------------ ---------- ---------- ---------- 7876 ADAMS CLERK 7788 23-MAY-87 1100 20 7900 JAMES CLERK 7698 03-DEC-81 950 30 7902 FORD ANALYST 7566 03-DEC-81 3000 20 7934 MILLER CLERK 7782 12-OCT-21 1300 10 15 rows selected.
在TWO实例中数据已恢复，余下的事就好处理了，resetlogs开库后，根据数据量的大小可以采取dblink及数据泵的方式来取回数据。
再来对比一下新旧实例的名字。
SQL> show parameter name; NAME TYPE VALUE ------------------------------------ ---------------------- ------------------------------ cell_offloadgroup_name string db_file_name_convert string db_name string PROD db_unique_name string PROD global_names boolean FALSE instance_name string PROD lock_name_space string log_file_name_convert string processor_group_name string service_names string PROD SQL> show parameter name; NAME TYPE VALUE ------------------------------------ ---------------------- ------------------------------ cell_offloadgroup_name string db_file_name_convert string db_name string PROD db_unique_name string TEST global_names boolean FALSE instance_name string TWO lock_name_space string log_file_name_convert string processor_group_name string service_names string TEST
实验中执行的RESTORE与RECOVER命令
run{ sql 'alter session set nls_date_format="yyyy-mm-dd hh24:mi:ss"'; set until time '2021-11-18 23:00:00'; allocate channel ch01 device type disk; allocate channel ch02 device type disk; set newname for datafile 1 to '/u01/app/oradata/TWO/system01.dbf'; set newname for datafile 2 to '/u01/app/oradata/TWO/sysaux01.dbf'; set newname for datafile 3 to '/u01/app/oradata/TWO/undotbs01.dbf'; set newname for datafile 4 to '/u01/app/oradata/TWO/users01.dbf'; restore tablespace SYSTEM,SYSAUX,UNDOTBS1,USERS; switch datafile all; release channel ch01; release channel ch02; } run{ sql 'alter session set nls_date_format="yyyy-mm-dd hh24:mi:ss"'; set until time '2021-11-18 23:00:00'; allocate channel ch01 device type disk; recover database skip tablespace DATA1,DATA2,BMI,DATA3; switch datafile all; release channel ch01; }