欢迎进入Oracle社区论坛，与200万技术人员互动交流 >>进入 Starting restore at 2013/07/25 14:33:29 ---开始restore allocated channel: ORA_AUX_DISK_1 channel ORA_AUX_DISK_1: SID=134 device type=DISK channel ORA_AUX_DISK_1: starting datafile back
欢迎进入Oracle社区论坛，与200万技术人员互动交流 >>进入
Starting restore at 2013/07/25 14:33:29 --->开始restore
allocated channel: ORA_AUX_DISK_1
channel ORA_AUX_DISK_1: SID=134 device type=DISK
channel ORA_AUX_DISK_1: starting datafile backup set restore
channel ORA_AUX_DISK_1: restoring control file --->首先restore controlfile
channel ORA_AUX_DISK_1: reading from backup piece /u01/database/sybo3/flash_recovery_area/SYBO3/autobackup/2013_07_25/
o1_mf_s_821695291_8z0x1vsf_.bkp
channel ORA_AUX_DISK_1: piece handle=/u01/database/sybo3/flash_recovery_area/SYBO3/autobackup/2013_07_25/
o1_mf_s_821695291_8z0x1vsf_.bkp tag=TAG20130725T084131
channel ORA_AUX_DISK_1: restored backup piece 1
channel ORA_AUX_DISK_1: restore complete, elapsed time: 00:00:01 -->controlfile restore完成
output file name=/u01/database/sybo5/controlf/control01.ctl -->output到的位置
output file name=/u01/database/sybo5/controlf/control02.ctl -->注意此时的控制文件中记录的信息依旧是sybo3的，即target db
Finished restore at 2013/07/25 14:33:30
database mounted -->数据库切换到mount状态，对应语句alter clone database mount
contents of Memory Script: -->这些SQL语句用于设置auxiliary db 数据文件位置
{
set until scn 886687; -->Oracle自动设定了相应的scn
set newname for datafile 1 to
"/u01/database/sybo5/oradata/system01.dbf";
set newname for datafile 2 to
"/u01/database/sybo5/oradata/sysaux01.dbf";
set newname for datafile 3 to
"/u01/database/sybo5/oradata/undotbs01.dbf";
set newname for datafile 4 to
"/u01/database/sybo5/oradata/users01.dbf";
set newname for datafile 5 to
"/u01/database/sybo5/oradata/example01.dbf";
restore --> 发布restore命令
clone database
;
}
executing Memory Script
executing command: SET until clause
executing command: SET NEWNAME
executing command: SET NEWNAME
executing command: SET NEWNAME
executing command: SET NEWNAME
executing command: SET NEWNAME
Starting restore at 2013/07/25 14:33:35 -->开始数据文件的restore
using channel ORA_AUX_DISK_1 -->根据控制文件的信息读取备份集并还原到set newname位置
channel ORA_AUX_DISK_1: starting datafile backup set restore
channel ORA_AUX_DISK_1: specifying datafile（s） to restore from backup set
channel ORA_AUX_DISK_1: restoring datafile 00001 to /u01/database/sybo5/oradata/system01.dbf
channel ORA_AUX_DISK_1: restoring datafile 00002 to /u01/database/sybo5/oradata/sysaux01.dbf
channel ORA_AUX_DISK_1: restoring datafile 00003 to /u01/database/sybo5/oradata/undotbs01.dbf
channel ORA_AUX_DISK_1: restoring datafile 00004 to /u01/database/sybo5/oradata/users01.dbf
channel ORA_AUX_DISK_1: restoring datafile 00005 to /u01/database/sybo5/oradata/example01.dbf
channel ORA_AUX_DISK_1: reading from backup piece /u01/database/sybo3/flash_recovery_area/SYBO3/backupset/2013_07_25/
o1_mf_nnndf_TAG20130725T083959_8z0wz06c_.bkp
channel ORA_AUX_DISK_1: piece handle=/u01/database/sybo3/flash_recovery_area/SYBO3/backupset/2013_07_25/
o1_mf_nnndf_TAG20130725T083959_8z0wz06c_.bkp tag=TAG20130725T083959
channel ORA_AUX_DISK_1: restored backup piece 1
channel ORA_AUX_DISK_1: restore complete, elapsed time: 00:01:15 -->完成数据文件restore
Finished restore at 2013/07/25 14:34:50
contents of Memory Script: -->下面的脚本将新的数据文件全部更新到控制文件
{
switch clone datafile all;
}
executing Memory Script
datafile 1 switched to datafile copy
input datafile copy RECID=7 STAMP=821716490 file name=/u01/database/sybo5/oradata/system01.dbf
datafile 2 switched to datafile copy
input datafile copy RECID=8 STAMP=821716491 file name=/u01/database/sybo5/oradata/sysaux01.dbf
datafile 3 switched to datafile copy
input datafile copy RECID=9 STAMP=821716491 file name=/u01/database/sybo5/oradata/undotbs01.dbf
datafile 4 switched to datafile copy
input datafile copy RECID=10 STAMP=821716491 file name=/u01/database/sybo5/oradata/users01.dbf
datafile 5 switched to datafile copy
input datafile copy RECID=11 STAMP=821716491 file name=/u01/database/sybo5/oradata/example01.dbf
contents of Memory Script: -->下面的脚本Oracle自动设置了scn后发布recover命令
{
set until scn 886687;
recover
clone database
delete archivelog
;
}
executing Memory Script
executing command: SET until clause
Starting recover at 2013/07/25 14:34:51 -->下面使用archivelog进行recover
using channel ORA_AUX_DISK_1
starting media recovery
archived log for thread 1 with sequence 16 is already on disk as file /u01/database/sybo3/flash_recovery_area/SYBO3/
archivelog/2013_07_25/o1_mf_1_16_8z16rk6o_.arc -->此时运用到了一个sybo3已经存在的归档日志，sequence 为16
channel ORA_AUX_DISK_1: starting archived log restore to default destination -->接下来还原归档日志到缺省位置
channel ORA_AUX_DISK_1: restoring archived log
archived log thread=1 sequence=15 -->从备份的归档日志中读取 sequence为15 的
channel ORA_AUX_DISK_1: reading from backup piece /u01/database/sybo3/flash_recovery_area/SYBO3/backupset/2013_07_25/
o1_mf_annnn_TAG20130725T084129_8z0x1syh_.bkp
channel ORA_AUX_DISK_1: piece handle=/u01/database/sybo3/flash_recovery_area/SYBO3/backupset/2013_07_25/
o1_mf_annnn_TAG20130725T084129_8z0x1syh_.bkp tag=TAG20130725T084129
channel ORA_AUX_DISK_1: restored backup piece 1
channel ORA_AUX_DISK_1: restore complete, elapsed time: 00:00:01
archived log file name=/u01/database/sybo5/flash_recovery_area/SYBO5/archivelog/2013_07_25/o1_mf_1_15_8z1krh5x_.arc thread=1 sequence=15
channel clone_default: deleting archived log（s） -->删除归档日志
[1] [2] [3] [4]
MySQL: BLOB and other no-sql storage, what are the differences?May 13, 2025 am 12:14 AMMySQL'sBLOBissuitableforstoringbinarydatawithinarelationaldatabase,whileNoSQLoptionslikeMongoDB,Redis,andCassandraofferflexible,scalablesolutionsforunstructureddata.BLOBissimplerbutcanslowdownperformancewithlargedata;NoSQLprovidesbetterscalabilityand
MySQL Add User: Syntax, Options, and Security Best PracticesMay 13, 2025 am 12:12 AMToaddauserinMySQL,use:CREATEUSER'username'@'host'IDENTIFIEDBY'password';Here'showtodoitsecurely:1)Choosethehostcarefullytocontrolaccess.2)SetresourcelimitswithoptionslikeMAX_QUERIES_PER_HOUR.3)Usestrong,uniquepasswords.4)EnforceSSL/TLSconnectionswith
MySQL: How to avoid String Data Types common mistakes?May 13, 2025 am 12:09 AMToavoidcommonmistakeswithstringdatatypesinMySQL,understandstringtypenuances,choosetherighttype,andmanageencodingandcollationsettingseffectively.1)UseCHARforfixed-lengthstrings,VARCHARforvariable-length,andTEXT/BLOBforlargerdata.2)Setcorrectcharacters
MySQL: String Data Types and ENUMs?May 13, 2025 am 12:05 AMMySQloffersechar, Varchar, text, Anddenumforstringdata.usecharforfixed-Lengthstrings, VarcharerForvariable-Length, text forlarger text, AndenumforenforcingdataAntegritywithaetofvalues.
MySQL BLOB: how to optimize BLOBs requestsMay 13, 2025 am 12:03 AMOptimizing MySQLBLOB requests can be done through the following strategies: 1. Reduce the frequency of BLOB query, use independent requests or delay loading; 2. Select the appropriate BLOB type (such as TINYBLOB); 3. Separate the BLOB data into separate tables; 4. Compress the BLOB data at the application layer; 5. Index the BLOB metadata. These methods can effectively improve performance by combining monitoring, caching and data sharding in actual applications.
Adding Users to MySQL: The Complete TutorialMay 12, 2025 am 12:14 AMMastering the method of adding MySQL users is crucial for database administrators and developers because it ensures the security and access control of the database. 1) Create a new user using the CREATEUSER command, 2) Assign permissions through the GRANT command, 3) Use FLUSHPRIVILEGES to ensure permissions take effect, 4) Regularly audit and clean user accounts to maintain performance and security.
Mastering MySQL String Data Types: VARCHAR vs. TEXT vs. CHARMay 12, 2025 am 12:12 AMChooseCHARforfixed-lengthdata,VARCHARforvariable-lengthdata,andTEXTforlargetextfields.1)CHARisefficientforconsistent-lengthdatalikecodes.2)VARCHARsuitsvariable-lengthdatalikenames,balancingflexibilityandperformance.3)TEXTisidealforlargetextslikeartic
MySQL: String Data Types and Indexing: Best PracticesMay 12, 2025 am 12:11 AMBest practices for handling string data types and indexes in MySQL include: 1) Selecting the appropriate string type, such as CHAR for fixed length, VARCHAR for variable length, and TEXT for large text; 2) Be cautious in indexing, avoid over-indexing, and create indexes for common queries; 3) Use prefix indexes and full-text indexes to optimize long string searches; 4) Regularly monitor and optimize indexes to keep indexes small and efficient. Through these methods, we can balance read and write performance and improve database efficiency.
Hot AI Tools
Undresser.AI Undress
AI-powered app for creating realistic nude photos
AI Clothes Remover
Online AI tool for removing clothes from photos.
Undress AI Tool
Undress images for free
Clothoff.io
AI clothes remover
Video Face Swap
Swap faces in any video effortlessly with our completely free AI face swap tool!
Hot Article
Hot Tools
PhpStorm Mac version
The latest (2018.2.1) professional PHP integrated development tool
DVWA
Damn Vulnerable Web App (DVWA) is a PHP/MySQL web application that is very vulnerable. Its main goals are to be an aid for security professionals to test their skills and tools in a legal environment, to help web developers better understand the process of securing web applications, and to help teachers/students teach/learn in a classroom environment Web application security. The goal of DVWA is to practice some of the most common web vulnerabilities through a simple and straightforward interface, with varying degrees of difficulty. Please note that this software
SublimeText3 Chinese version
Chinese version, very easy to use
SecLists
SecLists is the ultimate security tester's companion. It is a collection of various types of lists that are frequently used during security assessments, all in one place. SecLists helps make security testing more efficient and productive by conveniently providing all the lists a security tester might need. List types include usernames, passwords, URLs, fuzzing payloads, sensitive data patterns, web shells, and more. The tester can simply pull this repository onto a new test machine and he will have access to every type of list he needs.
Dreamweaver Mac version
Visual web development tools
