Renaming datafiles in oracle 11gr2 asm mathijs bruggink. Single node, relying on your rmanbackup on disk, which is fortunately copied to tape. Io balancing for performance reasons, or to rectify incorrect naming standards. The dbnewid utility allows the dbid to be altered for the first time and makes changing the dbname simpler. To rename datafiles in a single tablespace, complete the following steps. In order to rename file in the tablesapce you need. Oracle, oracle 8i, oracle 9i are registered trademarks of oracle corporation. You have moved or renamed a datafile at operating system level but forgot to rename it within oracle. How to rename or move oracle tablespace datafile to. Oct 07, 2012 how to rename system tablespace datafile in oracle in windows please follow the steps listed below. Oracle database does not have an easytouse interface and this is a major problem when you want to rename move a data file of tablespace. Previous to oracle9i, when you dropped a tablespace.
While the database is open, put the tablespace offline, rename the datafile at the operating system level, rename the datafile at the database level and finally take the. How to rename a datafile which has blank characters or whitespace. In 12c and beyond, it is easy to rename a data file. Oracle 12c includes the alter database move datafile command, which performs an online move of a datafile. While the database is open, put the tablespace offline, rename the datafile at the operating system level, rename the datafile at the database level and finally take the tablespace online again. Oracle keeps track of the copied file and the old file and is dropping the old file during the alter database datafile rename action whereas the second scenario means you will have to do some afterwork in asmcmd since the original old file remains in place since in rman a copy and switch to is. You can add more datafiles as you run out of space. How to rename an unnamed datafile unnamed00004 to original. This updates the entry for the datafiles in the controlfile. Complete the following steps to rename or move your data files. Your problem to me looks like a lack of a skilled dba.
In the following post we will explain how to access to the information of oracle datafiles without the original database, only with the database files. Datafile offline alter database datafile offline 2. Oracle is the worlds most flexible database and we have many methods for renaming tablespaces and the underlying data files. How to rename a datafile which has blank characters or. Data file has a different name and or is in a different location e. The datafile pointers for the files that make up the users tablespace, recorded in the control file of the associated database, must now be changed from the old names to the new names. To answer my own comment, if the datafile is present in the control file then it will be renamed even before its actually created in by the recover database you can see rman creating an empty datafile when it does a restore from the full backup. How to resolve ora01111, ora01110, ora01157 there are many reasons for a file being created as unnamed or missing in the standby database, including insufficient disk space on standby site or improper parameter settings related to file management. Oracle tablespace rename, datafile rename and resize scripts. Aug 03, 2015 how to rename a datafile in a physical standby environment 1. Oct 23, 2012 senior oracle dba, oracle 10g, oracle 11g oce, oracle 12c and oracle 11g opn certified specialist, ocp certified in oracle 9i,10g, 11g and 12c. If the tablespace is offline but the database is open, use the alter tablespace. One step only is required for any of these actions and the database remains entirely available in read and write for users, without any data loss.
After this procedure the old backups and archivelog files will no longer be valid or reconigized, but you can restore to this backup. Oracle keeps track of the copied file and the old file and is dropping the old file during the alter database datafile rename. Renaming datafile on standby database oracle dba tips. Oracle tablespace rename, datafile rename and resize. Procedure for renaming and relocating datafiles in multiple tablespaces. Oct 01, 2014 let take users datafile for demonstration, we have one omf users datafile, size 8gb. Script to move oracle datafiles an oracle spin by alex lima. Datafile status offline oracle 9i solutions experts exchange.
Renaming of tablespace has been simplified to an extent of a single alter tablespace command. Start oracle database in mount state with startup mount command. Renaming datafile on standby database oracle dba tips and. In 12c and beyond, it is easy to rename a data file here is an example of the 12c new feature for a online move of a data file. Rename a tablespacedatafile in oracle 9i10g blog about cooking. In oracle 9i multiple blocksize that is different block size for different tablespaces, can be defined, all datafiles of a same tablespace have the same block size. The value of next is the minimum size of the increments added to the file when it extends. Whereas oracle allows a datafile to have any number of newline or whitespace characters, it is not a great practice to create datafiles with these special characters and as noticed above it is not a straightforward rename exercise. Please find the steps to rename an unnamed datafile to original name in standby database. Apr 17, 2010 this document will detail the steps to move rename a datafile using oracle 11g r2 on linux. Sql alter tablespace test1 rename to test2 the rename only works in oracle 10, and updates the dictionary entries for user quotas. Oracle 12c features a new command that allows to move datafiles when both database and datafile are online. There is no simple way to rename a tablespace in oracle 9, you have to use expimp, so, you cannot issue this online.
Issue the alter database rename file command to rename the file within the oracle dictionary. Lets see how renaming of tablespace can be done in 10g. Procedure for renaming datafiles in a single tablespace. Modify the controlfile alter database rename file 4. Oracle 12c includes an enhancement to the alter database command to allow datafiles to be moved online. Movingrenaming datafiles while the database is online. The 9i db crashing allowed the 2nd 11g database creation attempt to succeed. How to rename a data file of an oracle database or move it to a. Dear vijay, 1 make tablespace offline 2 at operating system level rename the datafilemv command 3 rename datafile at oracle level alter database rename file to. Gone are the days where you had to put a tablespace or your complete database offline in order to move or rename a datafile. Prior to oracle 12c, moving nonasm data files on or between storage arrays required taking data files offline and negotiating an outage with the business, with oracle 12c this is no longer the case. How to drop and recreate temp tablespace in oracle 9i10g11g technology.
Oracle 12c online database move datafile pure storage blog. The datafile movement can be performed without a database restart for those tablespaces, which can be taken offline all except system, undo or temp. I suspect this will have overwritten the 9i system tablespace datafile and probably controlfile, which unfortunately makes things unrecoverable. Always provide complete filenames including their paths to properly identify the old and new datafiles. Restoration and datafile media recovery with usermanaged procedures 125. Renaming and moving data files while the database is open. You must first take it offline or take the tablespace offline. Moving a database datafile and controlfile and redo log file from file system to asm storage duration. Renaming datafile in asm save time by using rman posted. The rename or move place task has to be performed via the oracle sqlplus command line interface and the database administrator has to be very careful in executing the commands. How to rename or move oracle tablespace datafile to another. Apr 30, 2015 sql alter tablespace users rename to psapuser.
Error on renaming tablespaces on oracle 9i solutions. By laurent schneider if you rename a file with alter database on your primary database, it will not propagate to the standby database. Rename or move datafiles and logfiles in many situations. Be careful though, adding more datafiles may take its toll on the database performance. Reenable the automatic standby file management and dg broker and restart the recovery start db in mount status if you use data guard. After creating this newer tablespace, you can switch older to newer undo tablespace online without affecting any ongoing transactions. Oracle goldengate on oracle cloud marketplace part 3 april 19, 2020 oracle goldengate on oracle cloud marketplace part 2 april 19, 2020 data migration to autonomous database using mv2adb april 19, 2020. From time to time a dba might need move an oracle database datafile from one location to another.
How to read oracle datafiles without oracle rdbms oracle. Rename a tablespacedatafile in oracle 9i10g blog about. Dec 03, 2014 in the following post we will explain how to access to the information of oracle datafiles without the original database, only with the database files. In his post frits is offering two scenarios to do this action. Take the tablespace that contains the datafiles offline. Consider this, youve got no dataguard at your disposal. I think the 2 ways described above shoulg work without rebuilding whole database.
Shutdown the database instance with shutdown command. The value of maxsize is the maximum size to which the file can automatically extend. Create a full database backup just in case you miss a step or something goes wrong. To perform media recovery on a datafile, the database can remain open and mounted with the damaged datafiles offline unless the file is part of the system tablespace. You can rename and move data files while the database is open. Online move datafile in oracle database 12c release 1 12. Personally i favor the first once since it holds less risk. The following example enables automatic extension for a datafile added to the users tablespace. Oct 25, 2010 to rename a tablespace in oracle 10g is very easy. Find answers to datafile status offline oracle 9i from the expert community at experts exchange. I want to rename a data file on a data guard standby database.
In the post i will detail how the new alter database move datafile feature can be used to to move data files online to a different location, disk or storage system. When you rename and relocate datafiles with these procedures, only the pointers to the datafiles, as recorded in the database control file, are changed. It is possible to move and or rename datafiles while the database is online provided the tablespace in which the files belong is a non system tablespace and does not contain any active rollback or temporary segments this document will detail the steps to moverename a datafile using oracle 11g r2 on linux. Here is a nice script if you need to move your datafiles to a new location.
At times, to fix the space crunch in a filesystem or to follow the filesystem standards or proper naming conventions, a dba might have to moverename an oracle datafile. This document explains how to move an asm datafile to another diskgroup. Take the tablespace containing the datafile offline. Prior to the introduction of the dbnewid utility alteration of the internal dbid of an instance was impossible and alteration of the dbname required the creation of a new controlfile. Procedures for renaming and relocating datafiles in a single tablespace. Add a datafile to an oracle tablespace black atlas creative. The datafiles reside under home oracle orahome1databasesora9 and have go to home oracle databasesora9. To properly move the datafile around or rename the datafile, follow this guide. The database has problems writing to a datafile and. Analyze asm datapump data guard data redaction dbv dbvisit standby enterprise manager exportimport linux manual data guard mongodb v3 mysql offline backup online backup ora600 oraxxxxx oracle oraclelinux oracle 10g oracle 11g oracle 12c oracle how tos oracle scripts oracle vm manager other postgresql rac redhat rman sql server sql server. More examples morgans library god grant us the serenity to accept the things we cannot change, courage to change the things we can, and wisdom to know the difference.
Rename the file with alter database rename file old to new. How to rename tablespaces to a new name in oracle 9i 10g 11g. How to rename system tablespace datafile in oracle technado. Oraclebase online move datafile in oracle database 12c. However our production dba said the oracle database has to be rebuilt, otherwise the file links get messed up. Praveen kumar chandrashekatr database analysist senior. From that point on all instances should be able to see the files. In older versions of oracle database such as oracle 9i etc, one can stop a. A similar but slightly different procedure is when a datafile has newline or whitespace character in it. Renaming datafile in asm save time by using rman nikhil kumar.
This is particularly useful in case that you had some kind of disaster and the information has to be recovered at any cost. If the database is up and you try to shut it down normal or immediate, you get ora01116 ad ora01110. Next transfer the files to a shared device and rename the file to the newfile. The following command will add a new datafile to an existing tablespace. Copy the datafiles to the new location using the operating system copy command.
Feb 03, 2010 dear vijay, 1 make tablespace offline 2 at operating system level rename the datafile mv command 3 rename datafile at oracle level alter database rename file to. The following sqlplus output shows how this is done. Now lets take users tablespace offline to rename the datafile using command alter tablespace users offline once tablespace is offline, copy omf users datafile user managed datafile inside the asm. All you need to do is take the file or tablespace offline. Firstly we need to establish if this is what happened. This chapter describes the various aspects of datafile and tempfile management, and contains the following topics guidelines for managing datafiles. Rename orand move the datafiles at operating system level. During database running and in 247 environment, you should need to create new undo tablespace with new location of undo datafile. Reinhold niebuhr the 12 step program related oracle commands.
In oracle database 10g we can easily rename a tablespace. How to rename a datafile in a physical standby environment. There were certain techniques you could employ to minimize that downtime, but you couldnt remove it completely. Oracle cloud marketplace goldengate classic environment april 19, 2020. The datafiles reside under homeoracleorahome1databasesora9 and have go to homeoracledatabasesora9. Please find the steps to rename an unnamed datafile to. You must determine what tablespace the data files belong to and put the tablespace in read only mode.
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