同一台主机使用RMAN的duplicate复制数据库,linux操作系统中有一套正在运行的数据库enmoedu 复制后的数据库aux
任务:同一台主机使用RMAN的duplicate复制数据库,linux操作系统中有一套正在运行的数据库enmoedu 复制后的数据库aux
实验步骤:
1. 主库RMAN备份
[Oracle@test ~]$ export ORACLE_SID=enmoedu
[oracle@test ~]$ rman target /
Recovery Manager: Release 11.2.0.3.0 - Production on Fri Jun 6 00:43:13 2014
Copyright (c) 1982, 2011, Oracle and/or its affiliates. All rights reserved.
connected to target database: ENMOEDU (DBID=108163061)
RMAN> backup database plus archivelog;
Starting backup at 06-JUN-14
using target database control file instead of recovery catalog
allocated channel: ORA_DISK_1
channel ORA_DISK_1: SID=61 device type=DISK
channel ORA_DISK_1: starting full datafile backup set
channel ORA_DISK_1: specifying datafile(s) in backup set
input datafile file number=00001 name=/11g/app/oracle/oradata/enmoedu/system01.dbf
input datafile file number=00002 name=/11g/app/oracle/oradata/enmoedu/sysaux01.dbf
input datafile file number=00005 name=/11g/app/oracle/oradata/enmoedu/example01.dbf
input datafile file number=00003 name=/11g/app/oracle/oradata/enmoedu/undotbs01.dbf
input datafile file number=00006 name=/11g/app/oracle/oradata/enmoedu/pitr.dbf
input datafile file number=00007 name=/11g/app/oracle/oradata/enmoedu/pitr_ind.dbf
input datafile file number=00008 name=/11g/app/oracle/oradata/enmoedu/index01.dbf
input datafile file number=00010 name=/11g/app/oracle/oradata/enmoedu/ts_users_1.dbf
input datafile file number=00004 name=/11g/app/oracle/oradata/enmoedu/users01.dbf
input datafile file number=00009 name=/11g/app/oracle/oradata/enmoedu/ts_users.dbf
input datafile file number=00011 name=/11g/app/oracle/oradata/enmoedu/ts_users1.dbf
channel ORA_DISK_1: starting piece 1 at 06-JUN-14
channel ORA_DISK_1: finished piece 1 at 06-JUN-14
piece handle=/11g/app/backup/db_53pa49ha_1_1.bak tag=TAG20140606T004322 comment=NONE
channel ORA_DISK_1: backup set complete, elapsed time: 00:00:25
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
including current SPFILE in backup set
channel ORA_DISK_1: starting piece 1 at 06-JUN-14
channel ORA_DISK_1: finished piece 1 at 06-JUN-14
piece handle=/11g/app/backup/db_54pa49i3_1_1.bak tag=TAG20140606T004322 comment=NONE
channel ORA_DISK_1: backup set complete, elapsed time: 00:00:01
Finished backup at 06-JUN-14
RMAN>quit
--------------------------------------------------------------------------------
RMAN 配置归档日志删除策略
Oracle基础教程之通过RMAN复制数据库
RMAN备份策略制定参考内容
RMAN备份学习笔记
Oracle数据库备份加密 RMAN加密
Linux-6-64下安装Oracle 12C笔记
在CentOS 6.4下安装Oracle 11gR2(x64)
Oracle 11gR2 在VMWare虚拟机中安装步骤
Debian 下 安装 Oracle 11g XE R2
--------------------------------------------------------------------------------
2. 配置监听文件及tnsnames.ora
--监听改静态 listener.ora 因为复制的aux库是nomount状态,pmon是mount的时候去动态注册,所以需要加静态注册。
Listener.ora文件修改后:
SID_LIST_LISTENER =
(SID_LIST =
(SID_DESC =
(GLOBAL_DBNAME = enmoedu)
(ORACLE_HOME = /11g/app/oracle/product/11.2.0/dbhome)
(SID_NAME = enmoedu)
)
(SID_DESC =
(GLOBAL_DBNAME = aux)
(ORACLE_HOME = /11g/app/oracle/product/11.2.0/dbhome)
(SID_NAME = aux)
)
)
Tnsnames.ora文件中添加:
aux =
(DESCRIPTION =
(ADDRESS = (PROTOCOL = TCP)(HOST = 192.168.10.8)(PORT = 1521))
(CONNECT_DATA =
(SERVER = DEDICATED)
(SERVICE_NAME = aux)
)
)
3. 通过enmoedu库的SPFILE生成PFILE,复制PFILE文件,,将SID名字更改为aux,并且将文件中参数进行修改。
[oracle@test ~]$ sqlplus / as sysdba
SQLPlus Release 11.2.0.3.0 Production on Thu Jun 5 235614 2014
Copyright (c) 1982, 2011, Oracle. All rights reserved.
Connected to
Oracle Database 11g Enterprise Edition Release 11.2.0.3.0 - 64bit Production
With the Partitioning, OLAP, Data Mining and Real Application Testing options
SQL select instance_name,status from v$instance;
INSTANCE_NAME STATUS
---------------- ------------
enmoedu OPEN
SQL create pfile from spfile;
File created.
SQLexit
[oracle@test ~]$ cd $ORACLE_HOMEdbs
[oracle@test dbs]$ cp initenmoedu.ora initaux.ora
修改前initaux.ora
enmoedu.__db_cache_size=201326592
enmoedu.__java_pool_size=4194304
enmoedu.__large_pool_size=4194304
enmoedu.__oracle_base='/11g/app/oracle'#ORACLE_BASE set from environment
enmoedu.__pga_aggregate_target=293601280
enmoedu.__sga_target=545259520
enmoedu.__shared_io_pool_size=0
enmoedu.__shared_pool_size=318767104
enmoedu.__streams_pool_size=8388608
*._shared_io_pool_size=0
*.audit_file_dest='/11g/app/oracle/admin/enmoedu/adump'
*.audit_trail='db'
*.compatible='11.2.0.0.0'
*.control_files='/11g/app/oracle/oradata/enmoedu/control01.ctl','/11g/app/oracle/oradata/enmoedu/control02.ctl'
*.db_block_size=8192
*.db_cache_size=201326592
*.db_create_file_dest=''
*.db_domain=''
*.db_flashback_retention_target=2880
*.db_name='enmoedu'
*.db_recovery_file_dest_size=2147483648
*.db_recovery_file_dest='/11g/app/backup'
*.db_writer_processes=2
*.diagnostic_dest='/11g/app/oracle'
*.java_pool_size=4194304
*.large_pool_size=4194304
*.log_archive_format='%t_%s_%r.arc'
*.memory_target=0
*.open_cursors=300
*.pga_aggregate_target=293601280
*.processes=300
*.remote_login_passwordfile='EXCLUSIVE'
*.sga_target=0
*.shared_pool_size=318767104
*.streams_pool_size=8388608
*.undo_tablespace='UNDOTBS1'
修改后initaux.ora(具体参数可根据自己环境进行调整)标黄色部分为更改项,要建立更改后的路径目录
aux.__db_cache_size=201326592
aux.__java_pool_size=4194304
aux.__large_pool_size=4194304
aux.__oracle_base='/11g/app/oracle'#ORACLE_BASE set from environment
aux.__pga_aggregate_target=293601280
aux.__sga_target=545259520
aux.__shared_io_pool_size=0
aux.__shared_pool_size=318767104
aux.__streams_pool_size=8388608
*._shared_io_pool_size=0
*.audit_file_dest='/11g/app/oracle/admin/aux/adump'
*.audit_trail='db'
*.compatible='11.2.0.0.0'
*.control_files='/11g/app/oracle/oradata/aux/control01.ctl','/11g/app/oracle/oradata/aux/control02.ctl'
*.db_block_size=8192
*.db_cache_size=201326592
*.db_create_file_dest=''
*.db_domain=''
*.db_flashback_retention_target=2880
*.db_name='aux'
*.db_recovery_file_dest_size=2147483648
*.db_recovery_file_dest='/11g/app/flashback_aux'
*.db_writer_processes=2
*.diagnostic_dest='/11g/app/oracle'
*.java_pool_size=4194304
*.large_pool_size=4194304
*.log_archive_format='%t_%s_%r.arc'
*.memory_target=0
*.open_cursors=300
*.pga_aggregate_target=293601280
*.processes=300
*.remote_login_passwordfile='EXCLUSIVE'
*.sga_target=0
*.shared_pool_size=318767104
*.streams_pool_size=8388608
*.undo_tablespace='UNDOTBS1'
*.db_file_name_convert='/11g/app/oracle/oradata/enmoedu/','/11g/app/oracle/oradata/aux/'
*.log_file_name_convert='/11g/app/oracle/oradata/enmoedu/','/11g/app/oracle/oradata/aux/'
更多详情见请继续阅读下一页的精彩内容:

mysqlviewshavelimitations:1)他們不使用Supportallsqloperations,限制DatamanipulationThroughViewSwithJoinsOrsubqueries.2)他們canimpactperformance,尤其是withcomplexcomplexclexeriesorlargedatasets.3)

porthusermanagementinmysqliscialforenhancingsEcurityAndsingsmenting效率databaseoperation.1)usecReateusertoAddusers,指定connectionsourcewith@'localhost'or@'%'。

mysqldoes notimposeahardlimitontriggers,butacticalfactorsdeterminetheireffactective:1)serverConfiguration impactactStriggerGermanagement; 2)複雜的TriggerSincreaseSySystemsystem load; 3)largertablesslowtriggerperfermance; 4)highConconcConcrencerCancancancancanceTigrignecentign; 5); 5)

Yes,it'ssafetostoreBLOBdatainMySQL,butconsiderthesefactors:1)StorageSpace:BLOBscanconsumesignificantspace,potentiallyincreasingcostsandslowingperformance.2)Performance:LargerrowsizesduetoBLOBsmayslowdownqueries.3)BackupandRecovery:Theseprocessescanbe

通過PHP網頁界面添加MySQL用戶可以使用MySQLi擴展。步驟如下:1.連接MySQL數據庫,使用MySQLi擴展。 2.創建用戶,使用CREATEUSER語句,並使用PASSWORD()函數加密密碼。 3.防止SQL注入,使用mysqli_real_escape_string()函數處理用戶輸入。 4.為新用戶分配權限,使用GRANT語句。

mysql'sblobissuitableForStoringBinaryDataWithInareLationalDatabase,而ilenosqloptionslikemongodb,redis和calablesolutionsolutionsolutionsoluntionsoluntionsolundortionsolunsonstructureddata.blobobobissimplobisslowdeperformberbutslowderformandperformancewithlararengedata;

toaddauserinmysql,使用:createUser'username'@'host'Indessify'password'; there'showtodoitsecurely:1)choosethehostcarecarefullytocon trolaccess.2)setResourcelimitswithoptionslikemax_queries_per_hour.3)usestrong,iniquepasswords.4)Enforcessl/tlsconnectionswith

toAvoidCommonMistakeswithStringDatatatPesInMysQl,CloseStringTypenuances,chosethirtightType,andManageEngencodingAndCollationsEttingSefectery.1)usecharforfixed lengengtrings,varchar forvariable-varchar forbariaible length,andtext/blobforlargerdataa.2 seterters seterters seterters


熱AI工具

Undresser.AI Undress
人工智慧驅動的應用程序,用於創建逼真的裸體照片

AI Clothes Remover
用於從照片中去除衣服的線上人工智慧工具。

Undress AI Tool
免費脫衣圖片

Clothoff.io
AI脫衣器

Video Face Swap
使用我們完全免費的人工智慧換臉工具,輕鬆在任何影片中換臉!

熱門文章

熱工具

SublimeText3 Linux新版
SublimeText3 Linux最新版

SublimeText3漢化版
中文版,非常好用

Dreamweaver CS6
視覺化網頁開發工具

VSCode Windows 64位元 下載
微軟推出的免費、功能強大的一款IDE編輯器

SublimeText3 Mac版
神級程式碼編輯軟體(SublimeText3)