同系统Oracle RMAN 异机数据库移植,Oracle RMAN 备份和恢复详解
环境:
源服务器:
VM7.14 rhel5.5-32 Oracle 11.2.0.0g
172.16.3.202
目标服务器
VM7.14 rhel5.5-32 oracle 11.2.0.0g
172.16.3.204
源服务器
一、在数据库中加入验证表和数据:
[oracle@ebs01 ~]$ sqlplus "/as sysdba"
SQL*Plus: Release 11.2.0.1.0 Production on Sun Jun 10 13:09:43 2012
Copyright (c) 1982, 2009, Oracle. All rights reserved.
Connected to:
Oracle Database 11g Enterprise Edition Release 11.2.0.1.0 - Production
With the Partitioning, OLAP, Data Mining and Real Application Testing options
SQL> create table addr1(city varchar(20),phone number);
Table created.
SQL> insert into addr1 values('beijing',1580118);
1 row created.
SQL> insert into addr1 values('shanghai',1501005);
1 row created.
SQL> insert into addr1 values('nanjing',1598888);
1 row created.
SQL> commit;
Commit complete.
SQL> select * from addr;
CITY PHONE
-------------------- ----------
beijing 1.5801E+10
shanghai 1.5010E+10
nanjing 1.5988E+10
二、清空备份目录,或者新建一个都行,并备份必要文件。
[oracle@ebs01 ~]$ cd /u01/backup
[oracle@ebs01 backup]$ rm *
1)开始备份,备份数据文件连同归档日志:
[oracle@ebs01 backup]$ rman target /
Recovery Manager: Release 11.2.0.1.0 - Production on Mon Jun 11 09:16:52 2012
Copyright (c) 1982, 2009, Oracle and/or its affiliates. All rights reserved.
connected to target database: ORCL (DBID=1290854593)
RMAN> run {
allocate channel c1 device type disk;
allocate channel c2 device type disk;
backup incremental level 0
format '/u01/backup/db_full_%U.bkp'
tag '2012-06-11-FULL'
database plus archivelog;
release channel c1;
release channel c2;
} 2> 3> 4> 5> 6> 7> 8> 9> 10>
using target database control file instead of recovery catalog
allocated channel: c1
channel c1: SID=41 device type=DISK
allocated channel: c2
channel c2: SID=28 device type=DISK
Starting backup at 11-JUN-12
current log archived
channel c1: starting archived log backup set
channel c1: specifying archived log(s) in backup set
input archived log thread=1 sequence=19 RECID=1 STAMP=784809253
input archived log thread=1 sequence=20 RECID=2 STAMP=784809551
input archived log thread=1 sequence=21 RECID=3 STAMP=785592038
channel c1: starting piece 1 at 11-JUN-12
channel c2: starting archived log backup set
channel c2: specifying archived log(s) in backup set
input archived log thread=1 sequence=22 RECID=4 STAMP=785592147
input archived log thread=1 sequence=23 RECID=5 STAMP=785595880
channel c2: starting piece 1 at 11-JUN-12
channel c1: finished piece 1 at 11-JUN-12
piece handle=/u01/backup/db_full_0mnd8mo1_1_1.bkp tag=2012-06-11-FULL comment=NONE
channel c1: backup set complete, elapsed time: 00:00:08
channel c1: starting archived log backup set
channel c1: specifying archived log(s) in backup set
input archived log thread=1 sequence=24 RECID=6 STAMP=785668864
channel c1: starting piece 1 at 11-JUN-12
channel c2: finished piece 1 at 11-JUN-12
piece handle=/u01/backup/db_full_0nnd8mo1_1_1.bkp tag=2012-06-11-FULL comment=NONE
channel c2: backup set complete, elapsed time: 00:00:08
channel c1: finished piece 1 at 11-JUN-12
piece handle=/u01/backup/db_full_0ond8mo9_1_1.bkp tag=2012-06-11-FULL comment=NONE
channel c1: backup set complete, elapsed time: 00:00:01
Finished backup at 11-JUN-12
Starting backup at 11-JUN-12
channel c1: starting incremental level 0 datafile backup set
channel c1: specifying datafile(s) in backup set
input datafile file number=00001 name=/u01/app/oracle/oradata/orcl/system01.dbf
input datafile file number=00005 name=/u01/app/oracle/oradata/orcl/example01.dbf
channel c1: starting piece 1 at 11-JUN-12
channel c2: starting incremental level 0 datafile backup set
channel c2: specifying datafile(s) in backup set
input datafile file number=00002 name=/u01/app/oracle/oradata/orcl/sysaux01.dbf
input datafile file number=00003 name=/u01/app/oracle/oradata/orcl/undotbs01.dbf
input datafile file number=00004 name=/u01/app/oracle/oradata/orcl/users01.dbf
channel c2: starting piece 1 at 11-JUN-12
channel c2: finished piece 1 at 11-JUN-12
piece handle=/u01/backup/db_full_0qnd8mob_1_1.bkp tag=2012-06-11-FULL comment=NONE
channel c2: backup set complete, elapsed time: 00:00:56
channel c2: starting incremental level 0 datafile backup set
channel c2: specifying datafile(s) in backup set
including current control file in backup set
channel c2: starting piece 1 at 11-JUN-12
channel c2: finished piece 1 at 11-JUN-12
piece handle=/u01/backup/db_full_0rnd8mq4_1_1.bkp tag=2012-06-11-FULL comment=NONE
channel c2: backup set complete, elapsed time: 00:00:09
channel c2: starting incremental level 0 datafile backup set
channel c2: specifying datafile(s) in backup set
including current SPFILE in backup set
channel c2: starting piece 1 at 11-JUN-12
channel c2: finished piece 1 at 11-JUN-12
piece handle=/u01/backup/db_full_0snd8mqs_1_1.bkp tag=2012-06-11-FULL comment=NONE
channel c2: backup set complete, elapsed time: 00:00:07
channel c1: finished piece 1 at 11-JUN-12
piece handle=/u01/backup/db_full_0pnd8mob_1_1.bkp tag=2012-06-11-FULL comment=NONE
channel c1: backup set complete, elapsed time: 00:01:48
Finished backup at 11-JUN-12
Starting backup at 11-JUN-12
current log archived
channel c1: starting archived log backup set
channel c1: specifying archived log(s) in backup set
input archived log thread=1 sequence=25 RECID=7 STAMP=785668983
channel c1: starting piece 1 at 11-JUN-12
channel c1: finished piece 1 at 11-JUN-12
piece handle=/u01/backup/db_full_0tnd8mro_1_1.bkp tag=2012-06-11-FULL comment=NONE
channel c1: backup set complete, elapsed time: 00:00:01
Finished backup at 11-JUN-12
released channel: c1
released channel: c2
2)备份当前控制文件:
RMAN> backup current controlfile format '/u01/backup/controlfile20120611.bak';
Starting backup at 11-JUN-12
allocated channel: ORA_DISK_1
channel ORA_DISK_1: SID=41 device type=DISK
channel ORA_DISK_1: starting full datafile backup set
channel ORA_DISK_1: specifying datafile(s) in backup set
including current control file in backup set
channel ORA_DISK_1: starting piece 1 at 11-JUN-12
channel ORA_DISK_1: finished piece 1 at 11-JUN-12
piece handle=/u01/backup/controlfile20120611.bak tag=TAG20120611T093224 comment=NONE
channel ORA_DISK_1: backup set complete, elapsed time: 00:00:02
Finished backup at 11-JUN-12
3)备份参数文件
RMAN> backup spfile format '/u01/backup/spfile20120611.bak';
Starting backup at 11-JUN-12
using channel ORA_DISK_1
channel ORA_DISK_1: starting full datafile backup set
channel ORA_DISK_1: specifying datafile(s) in backup set
including current SPFILE in backup set
channel ORA_DISK_1: starting piece 1 at 11-JUN-12
channel ORA_DISK_1: finished piece 1 at 11-JUN-12
piece handle=/u01/backup/spfile20120611.bak tag=TAG20120611T093402 comment=NONE
channel ORA_DISK_1: backup set complete, elapsed time: 00:00:01
Finished backup at 11-JUN-12
RMAN>

存储过程是MySQL中的预编译SQL语句集合,用于提高性能和简化复杂操作。1.提高性能:首次编译后,后续调用无需重新编译。2.提高安全性:通过权限控制限制数据表访问。3.简化复杂操作:将多条SQL语句组合,简化应用层逻辑。

MySQL查询缓存的工作原理是通过存储SELECT查询的结果,当相同查询再次执行时,直接返回缓存结果。1)查询缓存提高数据库读取性能,通过哈希值查找缓存结果。2)配置简单,在MySQL配置文件中设置query_cache_type和query_cache_size。3)使用SQL_NO_CACHE关键字可以禁用特定查询的缓存。4)在高频更新环境中,查询缓存可能导致性能瓶颈,需通过监控和调整参数优化使用。

MySQL被广泛应用于各种项目中的原因包括:1.高性能与可扩展性,支持多种存储引擎;2.易于使用和维护,配置简单且工具丰富;3.丰富的生态系统,吸引大量社区和第三方工具支持;4.跨平台支持,适用于多种操作系统。

MySQL数据库升级的步骤包括:1.备份数据库,2.停止当前MySQL服务,3.安装新版本MySQL,4.启动新版本MySQL服务,5.恢复数据库。升级过程需注意兼容性问题,并可使用高级工具如PerconaToolkit进行测试和优化。

MySQL备份策略包括逻辑备份、物理备份、增量备份、基于复制的备份和云备份。1.逻辑备份使用mysqldump导出数据库结构和数据,适合小型数据库和版本迁移。2.物理备份通过复制数据文件,速度快且全面,但需数据库一致性。3.增量备份利用二进制日志记录变化,适用于大型数据库。4.基于复制的备份通过从服务器备份,减少对生产系统的影响。5.云备份如AmazonRDS提供自动化解决方案,但成本和控制需考虑。选择策略时应考虑数据库大小、停机容忍度、恢复时间和恢复点目标。

MySQLclusteringenhancesdatabaserobustnessandscalabilitybydistributingdataacrossmultiplenodes.ItusestheNDBenginefordatareplicationandfaulttolerance,ensuringhighavailability.Setupinvolvesconfiguringmanagement,data,andSQLnodes,withcarefulmonitoringandpe

在MySQL中优化数据库模式设计可通过以下步骤提升性能:1.索引优化:在常用查询列上创建索引,平衡查询和插入更新的开销。2.表结构优化:通过规范化或反规范化减少数据冗余,提高访问效率。3.数据类型选择:使用合适的数据类型,如INT替代VARCHAR,减少存储空间。4.分区和分表:对于大数据量,使用分区和分表分散数据,提升查询和维护效率。

tooptimizemysqlperformance,lofterTheSeSteps:1)inasemproperIndexingTospeedUpqueries,2)使用ExplaintplaintoAnalyzeandoptimizequeryPerformance,3)ActiveServerConfigurationStersLikeTlikeTlikeTlikeIkeLikeIkeIkeLikeIkeLikeIkeLikeIkeLikeNodb_buffer_pool_sizizeandmax_connections,4)


热AI工具

Undresser.AI Undress
人工智能驱动的应用程序,用于创建逼真的裸体照片

AI Clothes Remover
用于从照片中去除衣服的在线人工智能工具。

Undress AI Tool
免费脱衣服图片

Clothoff.io
AI脱衣机

Video Face Swap
使用我们完全免费的人工智能换脸工具轻松在任何视频中换脸!

热门文章

热工具

Dreamweaver CS6
视觉化网页开发工具

SublimeText3 英文版
推荐:为Win版本,支持代码提示!

SublimeText3汉化版
中文版,非常好用

WebStorm Mac版
好用的JavaScript开发工具

VSCode Windows 64位 下载
微软推出的免费、功能强大的一款IDE编辑器