Thursday, July 4, 2013

Turn off redo log generation

Turn off redo log generation

The new TRANSFORM option introduced in data pumps import provides the flexibility to turn off the redo generation for the objects during the course of import. When DISABLE_ARCHIVE_LOGGING values is specified with theTRANSFORM option, redo generation for the objects in the context will be turned off during the entire import duration. This feature provides a great relief when importing large tables, and reduces the excessive redo generation, which results in quicker imports. This attribute applies to tables and indexes.
This example demonstrates this feature:
$ ./impdp directory=dpump dumpfile=abcd.dmp logfile=abcd.log TRANSFORM=DISABLE_ARCHIVE_LOGGING:Y

2 comments:

  1. Connected to: Oracle Database 11g Enterprise Edition Release 11.2.0.4.0 - 64bit Production
    With the Partitioning option
    ORA-39001: invalid argument value
    ORA-39042: invalid transform name DISABLE_ARCHIVE_LOGGING

    ReplyDelete
    Replies
    1. New feature in 12c, not avail. in 11g

      Delete