1. Migration of ASM files
ASM file migration refers to migrating database files located on the file system to the ASM disk group, or migrating database files located on the ASM disk group to the file system. As shown in:
Ii. migrate from the file
Oracle First chapter: Log Management
1.forcing Log Switches
sql> alter system switch logfile;
2.forcing checkpoints
Sql> alter system checkpoint;
3.adding Online Redo Log groups
sql> ALTER DATABASE Add logfile [Group 4]
Sql> ('/disk3/log4a.rdo ', '
The scenario is as follows:[Email protected] ~]# df-hFilesystem capacity used% mount point available/dev/sda2 28G 26G 585M 98%//DEV/SDA1 190M 12M 169M 7%/bootNone 2.0G 0 2.0G 0%/dev/shm/DEV/SDB3 99G 93M 94G 1%/u02
The root directory is full,
Database files include data files, log files, control files and password files, parameter files, and so on, the management of these files can be considered as the process of adding and removing changes.1. Data file ManagementIncrease:Add a data file
Cannot drop a database link after changing the global_name ORA-02024 [ID 382994.1]
Modified22-nov-2010TypeProblemStatusModerated
In this documentSymptomsCauseSolution
Platforms: 1-914cu;
This
Oracle Database File Management
Database files include data files, log files, control files, password files, and parameter files. Management of these files can be seen as the process of adding, deleting, modifying, and querying.
1. Data File
The procedure is simple: Shut down the source database-copy to the target machine-start to mount state rename-open Database login source Database Host build ing directory 192.168.1.2oradata ing to z: after the disk ing is completed, check whether
Oracle First chapter: Log Management
1.forcing Log Switches
sql> alter system switch logfile;
2.forcing checkpoints
Sql> alter system checkpoint;
3.adding Online Redo Log groups
sql> ALTER DATABASE Add logfile [Group 4]
Sql> ('/disk3/log4a.rdo ',
cannot drop a database link after changing the global_name ORA-02024 (document ID 382994.1)applies To:Oracle database-enterprise edition-version 9.2.0.6 and laterInformation in this document applies to any platform.Checked for relevance on 14-nov-201
Analog failure CD/U01/ORACLE/ORADATA/ORCL Delete all cqwr_tb files [[email protected] orcl]$ RM-FR cqwr_tb_m* sql> Conn cqwr/ Cqwrconnected.sql> SELECT * from t_lte_card_info;select * from T_LTE_CARD_INFO *error at line 1:ora-0111
? Perform a full recovery after losing critical or non-critical data files? Restore with incremental update backup? Switch to image copy for quick recovery? Restore the database to a new host? Using Backup control files for recovery
Using
If you are migrating a tablespace or data file only, you can move the table space or data file offline after the location, andAlert database rename and alter tablespace rename write position changes to the control fileExample migrating a data
To Restore the database on a new host:1. Ensure that the backups of the target database is accessible on the new host.2. Configure the Oracle_sid on HostB.3. Start RMAN on HostB and connect to the target database without connecting to the recovery
The steps are simple: Guan-> copy to target machine-> boot to mount State rename->open database
Login to the source database host
Create map directory 192.168.1.2oradata map to Z: Disk
Check to see if the file is allowed to be written after
Scenario Description:
A friend asked, MSSQLServer to restore the database backup to other machines is very convenient, basically is a fool operation, Oracle has control files, parameter files a pile of things,
Feel that the restoration is very
Application Environment: A table is accidentally deleted. At this time, I cannot restore the entire database, which is too troublesome. So now I will copy the data file from the new database to restore it. Therefore, Oracle cannot only restore a
Rac creates a data file in a non-shared location. oracle 11g 11.2.0.1linux server 64-bit 5.4 node1: Creates a data file '/tmp/rman. dbf' is not stored in the shared disk. Then, a table casd is created and data is added. In this case, the following
Oracle-full recovery of User Management (1) I. categories can be divided into full recovery in non-archive mode and archive mode. full recovery is mainly for archive mode, and it is difficult to achieve full recovery in non-archive mode, unless
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