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Transfer 'LONG RAW" data from one database to another

Posted on 2000-04-28
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Last Modified: 2008-03-06
Hi Expert,
I have two database. IE database 1 and database 2. Both have a table that contain a column with "LONG RAW" data type.
I would like to transfer some of this column data from database 1 to database 2.
Pls propose a solution for this.
Thks!
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Question by:jiayiloo
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Accepted Solution

by:
askjervold earned 50 total points
ID: 2758961
If you do not want all the data transfered you ought to copy the table to a working table:

create table tmp_table as
select * from table;

in database 1,

and then export and import the table to database 2 using exp and imp utilities.

in database 2 use direct load to insert data into the table:

insert into table
select * from tmp_table
where <your clause for selecting data>;

This data is inserted above HWM (High Water mark) so if this is big tables you should give this a thought.

rgds andy
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Expert Comment

by:mphilipp
ID: 2761779
I don't think this will work, Andy. You can't copy LONG fields like that(ORA-0997 - illegal use of Long datatype). There are two options:

1-export/import. Here you can't make a selection of the records you want to transfer.
2-write the content of the long field to a file and read them with SQL*Loader. I did that once, but was only able to do it because ot was ASCII data in a LONG collumn. I'm not sure if you can do the same thing with a binary values. Maybe you should try something in Visual Basic, for Oracle doesn't leave you with much option for LONG columns.
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