How do I rename a redo log file?

  1. Shut down the database. SHUTDOWN.
  2. Copy the redo log files to the new location. Operating system files, such as redo log members, must be copied using the appropriate operating system commands.
  3. Startup the database, mount, but do not open it.
  4. Rename the redo log members.
  5. Open the database for normal operation.

How do you rename redo log file online or offline give the command?

Rename the online redo log members. SQL> ALTER DATABASE RENAME FILE ‘/diska/logs/log1a. rdo’, ‘/diska/logs/log2a. rdo’ TO ‘/diskc/logs/log1c.

How do you rename a log file in Oracle?

Rename and/or move a logfile

  1. Shutdown the database.
  2. Copy the logfile to the new name/location at the operating system level.
  3. Mount the database. SQL> STARTUP MOUNT.
  4. Rename the file.
  5. Open the database.
  6. Remove the logfile(s) from the old location at the operating system level.

How do I rename a file in Datafile?

To rename datafiles in a single tablespace, complete the following steps:

  1. Take the tablespace that contains the datafiles offline.
  2. Rename the datafiles using the operating system.
  3. Use the ALTER TABLESPACE statement with the RENAME DATAFILE clause to change the filenames within the database.
  4. Back up the database.

How do I change the redo log location in Oracle 12c ASM?

Moving Datafiles and Redo Log Files From Filesystem To ASM Storage

  1. 1- If Block Change Tracking is enabled then you must disable it.
  2. 2- Change default location of datafiles and control files as +DATA disk group.
  3. 3- Reset control_files parameter in the spfile parameter file.

How do I rename a file in ASM?

There is no way to rename a system generated ASM filename. Once a user-created-alias is added in the diskgroup, then you can use “rename alias” to rename the filename within ASM.

How do I delete a redo log in Oracle?

To drop specific inactive redo log members, use the ALTER DATABASE statement with the DROP LOGFILE MEMBER clause. The following statement drops the redo log /oracle/dbs/log3c. rdo : ALTER DATABASE DROP LOGFILE MEMBER ‘/oracle/dbs/log3c.

How do I rename a control file in ASM?

ASM files can be renamed like any other files in a standard filesystem. For ASM, rename is peformed through some type of statements (ADD ALIAS, RENAME ALIAS, ADD DIRECTORY) to manipulate filenames, alias, and directories.

How do I create a redo log in Oracle?

To create a new group of redo log files, use the SQL statement ALTER DATABASE with the ADD LOGFILE clause. The following statement adds a new group of redo logs to the database: ALTER DATABASE ADD LOGFILE (‘/oracle/dbs/log1c. rdo’, ‘/oracle/dbs/log2c.

What is ASM alias?

Alias names, or aliases, are intended to provide a more user-friendly means of. referring to Oracle ASM files, rather than using the system-generated file names. Creating an Alias Name for an Oracle ASM File Name. SQL> alter diskgroup DG_TST_DATA add alias ‘+DG_TST_DATA/TST1T/datafile1.

How do I move an ASM datafile to another Diskgroup?

Answer: Moving data files from one ASM diskgroup to another diskgroup involves these steps:

  1. Step 1: Get the data file name: select. file_name. from.
  2. Step 2: Identify the target diskgroup to migrate to: select. name. from.
  3. Step 3: Take the old data file offline: alter database datafile. ‘+MYDB_OLDDATA/mysid/app_data.nnn’

Can we delete redo log files?

It is permissible to drop redo log files so that a multiplexed redo log becomes temporarily asymmetric. For example, if you use duplexed groups of redo log files, you can drop one member of one group, even though all other groups have two members each.