AUL(MyDUL) can read rows directly from Oracle data files without Oracle environment, so it can be used to perform recovery when you cannot open the database while you have no backup available. DBAs sometimes hit the following case...
AUL (MyDUL) has recovered a lot of data for global customers. As it can read the rows out from data files without Oracle environment just as Oracle DUL can do, we can use it in the following case...
When you need Oracle database recovery, before you choosing AUL(MyDUL), please check the following. Because AUL(MyDUL) can only be the last method you should choose, and it's not free, you will be charged. Do you have...
AUL(MyDUL) use a dynamic license model, every time you start AUL, you need register license to remove the demo limit (2 Files and 256MB only). By this way, you can perform the data recovery with my online support...
In Oracle we know that it's possible to contain some corrupted blocks that cannot be read, We could use dbv or rman to check them. But in AUL/MyDUL, it's still possible to recover rows from these corrupted blocks,...
Download the binary and put it into a directory with enough free space to hold the recovered data, then prepare a text file (db10g.cfg) to tell AUL (MyDUL) where the data files is. As following. # FILE# RFILE# NAME...
AUL (MyDUL) can recover the data to dump file by setting the output style, the character set and the national character set. As following, 871 is the UTF8 character set id. AUL> SET OUTPUT_STYLE DMP Current OUTPUT_STYLE is...
To correctly unload data, you need to tell AUL some option values by the "SET" command. Currently 12 options are available. Some are used to tell AUL the datafile format, some to set the output file format, and...
I have seems somebody truncated their tables by mistaken several times, because of they connect to wrong database and run the script without careful check. To save data, the first thing they need to do is stop the...
All the table structure informations are stored in system tablespace, in the user data tablespace, there are only a data object id and the rows you wanted. So we could scan all the data files and recover all...
AUL version 4 support LOB data type, including inline LOB, in row LOB and out of row LOB. I need to introduce few new options of AUL, the following two are only related to CLOB data type: ...
How many files can be stored in on directory? I don't know the answer. But when one directory have a lot of files, it will be very hard to operate, and may slow down the file access speed....
All the blocks of a chunk must be continual with a single extent, because you cannot specify a chunk size larger than the next extent size. Based on this rule, I add different chunk size support to AUL...
When you prepare to do recovery of partitioned table with LOB columns with AUL4, you must modify the LOB index's partition name first in "AULOBJ.TXT". I have thought that the LOB index have the same partition name with...
I provide Oracle data recovery service for you, it's not free, so you will be charged, we need get an agreement on the charge first. How much you will be charged? I am not selling a product or...
Oracle compress can save a lot of storage for us, so I believe that more and more companys will start to use it. I spent few days free time on it, and add the compress feature support in...
I rewrote severl key functions in AUL to add the compress table support, but I found that the DMP format support is more robust in AUL 5. When I use the latest AUL 4 to unload table "SYS.IND$"...
I provide Oracle data recovery service by internet. When I say data recovery, always means cases without valid backup available, and have to use AUL/MyDUL to read data directly from existing data files. There are four types of...
I have been writing and maintaining AUL/MyDUL software for three years. Just wondering how much lines of C code I have wrote and did a count, strangely there are less lines than I have expected (10000 lines). ...
AUL just focus on the data recovery, it does not generate the source code of the stored procedures, but we can recover them. Just recover some kernel table's data and load them into new database, then run query...
AUL just focus on the data recovery, it does not generate the SQL of creating the indexes, but we can recover them. Just recover some kernel table's data and load them into new database, then run query to...
This year I got few cases that Oracle DUL cannot recover the data well for you, while AUL/MyDUL can do it well. In the following cases, you should choose AUL/MyDUL as the recovery tool. CLOB data...
It has been four years since AUL help it's first customer from Hongkong to get the data back. In the last four years, AUL does help a lot of custoemrs in disaster data recovery situation without valid backup....
It has been 5 years since I released the first version of AUL utility, and I have helped lots of customers to get their data back from corrupted database, such as lost system tablespace, table dropped or truncated....
I create a tablespace based on an Oracle ASM disk group with two physical disks, and create a table with 499999 rows to make sure the data distributed on two disks evenly. SQL> select disk_number, name,path from v$asm_disk;...
AUL is a well known Oracle data recovery utility, it has helped lot's of customers to find their data back from corrupted Oracle database (file corrupted, system dropped, table truncated etc). New AUL license is required...
I create a tablespace based on an Oracle ASM disk group with two physical disks, and create a table with 499999 rows to make sure the data distributed on two disks evenly. SQL> select disk_number, name,path from v$asm_disk;...
