1、flashback 全库

SQL> select flashback_on from v$database;

FLASHBACK_ON
------------------------------------
YES

SQL> show parameter flashback

NAME TYPE VALUE
------------------------------------ ---------------------- ------------------------------
db_flashback_retention_target integer 1440

（1）flashback 还原点

SQL> create table test as select * from dba_objects;

Table created.

SQL> create restore point rp guarantee flashback database;

Restore point created.

SQL> drop table test purge;

Table dropped.

SQL> shutdown immediate

SQL> startup mount

SQL> flashback database to restore point rp;

Flashback complete.

SQL> alter database open read only;

Database altered.

SQL> select count(*) from test;

COUNT(*)
----------
72385

SQL> shutdown immediate

SQL> startup mount

SQL> alter database open resetlogs;

SQL> select count(*) from test;

COUNT(*)
----------
72385

（2）flashback scn

SQL> select current_scn from v$database;

CURRENT_SCN
-----------
2253002

SQL> drop table test purge;

SQL> shutdown immediate

SQL> startup mount

SQL> flashback database to scn 2253002;

SQL> alter database open resetlogs;

SQL> select count(*) from test;

COUNT(*)
----------
72385

（3）flashback timestamp

SQL> select sysdate from dual;

SYSDATE
-------------------
2022-10-24 14:32:32

SQL> drop table test purge;
SQL> startup mount

SQL> flashback database to timestamp to_timestamp('2022-10-24 14:32:32','yyyy-mm-dd hh24:mi:ss');

SQL> alter database open resetlogs;

SQL> select count(*) from test;

COUNT(*)
----------
72385

2、flashback pdb

SQL> show pdbs

CON_ID CON_NAME OPEN MODE RESTRICTED
---------- ------------------------------ ---------- ----------
2 PDB$SEED READ ONLY NO
3 PDB1 READ WRITE NO
4 PDB2 READ WRITE NO
5 PDB3 READ WRITE NO
SQL> alter session set container=pdb2;

Session altered.

（1）flashback cdb 还原点

SQL> create table pdb2 as select * from dba_objects;

Table created.

SQL> select count(*) from dba_objects;

COUNT(*)
----------
72357

SQL> shutdown immediate
Pluggable Database closed.

SQL> show pdbs

CON_ID CON_NAME OPEN MODE RESTRICTED
---------- ------------------------------ ---------- ----------
4 PDB2 MOUNTED

SQL> flashback pluggable database pdb2 to restore point rp;

Flashback complete.

SQL> alter pluggable database pdb2 open resetlogs;

SQL> select count(*) from pdb2;
select count(*) from pdb2
*
ERROR at line 1:
ORA-00942: table or view does not exist

（2）flashback pdb 还原点

SQL> create table pdb2 as select * from dba_objects;

Table created.

SQL> select count(*) from dba_objects;

COUNT(*)
----------
72357

SQL> create restore point pdb;

Restore point created.

SQL> drop table pdb2 purge;

SQL> shutdown immediate

SQL> flashback pluggable database pdb2 to restore point pdb;

SQL> alter database open;
alter database open
*
ERROR at line 1:
ORA-01113: file 16 needs media recovery
ORA-01110: data file 16: '/u01/app/oracle/oradata/ORCL/pdb2/users01.dbf'

SQL> alter pluggable database pdb2 open resetlogs;

SQL> select count(*) from pdb2;

COUNT(*)
----------
72356

（3）flashback scn

SQL> select current_scn from v$database;

CURRENT_SCN
-----------
2262490

SQL> drop table pdb2 purge;

SQL> shutdown immediate

SQL> flashback pluggable database pdb2 to scn 2262490;

SQL> alter pluggable database pdb2 open resetlogs;

SQL> select count(*) from pdb2;

COUNT(*)
----------
72356

（4）flashback timestamp

SQL> select sysdate from dual;

SYSDATE
-------------------
2022-10-24 14:48:46

SQL> drop table pdb2 purge;

SQL> shutdown immediate

SQL> flashback pluggable database pdb2 to timestamp to_timestamp('2022-10-24 14:48:46','yyyy-mm-dd hh24:mi:ss');

SQL> alter pluggable database pdb2 open resetlogs;

SQL> select count(*) from pdb2;

COUNT(*)
----------
72356

3、删除还原点

SQL> alter session set container= pdb2;

Session altered.

SQL> drop restore point pdb;

Restore point dropped.

SQL> conn / as sysdba
Connected.

SQL> drop restore point rp;

Restore point dropped.

flashback全库和pdb相关推荐

oracle8616,ORACLE11G-数据库备份恢复之RMAN全库备份恢复
文章模拟数据库在有rman全库备份并在备份后有事务产生后数据库崩溃的恢复过程,欢迎交流学习. 1.rman全库备份 RMAN> backup as compressed backupset da ...
【原创】rman 全库备份脚本
rman 全库备份脚本 run { allocate channel d1 type disk; allocate channel d2 type disk; backup full database ...
使用network管理DD恢复全库操作步骤
使用network管理DD恢复全库操作步骤基本信息: 系统平台:RHEL 5.4_86_64 database版本:11.2.0.2.0-64bit 1.检查目标主机是否安装networker客户端 ...
SQL Server存储过程里全库查找引用的数据库对象(表、存储过程等)
SQL Server存储过程全库匹配数据库对象(表.存储过程等) 简介可以通过自定义存储过程sp_eachdb来遍历每个数据库然后结合sys.objects 关联sys.sql_modules后的d ...
oracle快速备份全库,做了两次rman 全库备份，如何快速删除第一次的备份？
[20160728]删除备份集问题.txt --itpub有人问的问题,链接:http://www.itpub.net/thread-2064530-1-1.html 做了两次rman 全库备份,如何 ...
全库模式用户模式表模式_暗模式，亮模式和用户的故事
全库模式用户模式表模式 I have been working on designing a UI for an app that has individuals over the age of ...
mysql dump gtid_mysqldump命令详解 Part 3- 备份全库
前面说了MySQL Linux平台和Windows平台的安装下面开始是MySQL的一些学习笔记前面我们说了如果构造数据这节开始说MySQL 的备份环境为MySQL 5.7.25 在解释命令之前 ...
mysql 快照能否恢复某个表_mysql全库备份恢复某个表
早上小红过来问我说网站的一个功能没了,看了下数据库,少了个表.好吧,心里mmp,开始恢复数据环境: 全库备份恢复某一个表 1.1 查看备份数据 [aiye@aiye mysql_backup]$l ...
mysql sqlsugar_【开源框架】SqlSugarRepository 全库ORM 正式发布
SqlSugarRepository.dll 全库开发框架支持四种数据库:SqlServer. MySql .Oracle和Sqlite. SqlSugarRepository是为全库开发而生的OR ...

flashback全库和pdb

1、flashback 全库

（1）flashback 还原点

（2）flashback scn

（3）flashback timestamp

2、flashback pdb

（1）flashback cdb 还原点

（2）flashback pdb 还原点

（3）flashback scn

（4）flashback timestamp

3、删除还原点

flashback全库和pdb相关推荐

最新文章

热门文章