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The idea is to unload lobs just from the lob segment.

Situation

This document details the steps that need to be taken to engage to begin the process for performing DUL on one or more database
datafiles.

ORACLEデータベースを正常にオープンできない場合やマウントできない場合、データベースが損傷した場合等にオラクルデータベースファイル(～.dbf)を直接読み込むことによって、ファイルから有効なデータを抽出するツールです。

the osd header is endian specific. Remember that the settings should be

for the original database platform. So this only requires some attention when cross unloading. For instance when

mode

Stream mode is the most compact SQL*Loader format, the records to be loaded are variable in size and terminated

DUL an Oracle database scavenger tool

Disk header copy

Lately there is an extra copy of the asm disk header. This copy can be used to fix the real header using kfed with the

amdu

Always good to know that starting from 11g amdu is included in the distribution. Amdu is the asm dump utility. Apart