Select LONG column from Remote table

Hi to all.
I have the following problem: I can't select a LONG column from remote database, when there are Join operation in the query. Example:
SELECT long_column FROM remote_table@DB
-> that's OK, but:
SELECT long_column FROM remote_table@DB INNER JOIN remote_table2@DB ON ...
-> returns: "ORA-00997: Illegal use of LONG datatype"
I cannot even perform (because there a LONG column in the joined table):
SELECT nonlong_column FROM remote_table@DB INNER JOIN remote_table2@DB ON ...
That's very strange to me because:
SELECT long_column FROM local_table INNER JOIN local_table2 ON ...
-> is OK!
Can someone help me to SELECT a long column from remote in SELECT query with JOIN clause!
Thanks a lot!

Hi
"Distributed queries are currently subject to the restriction that all tables locked by a FOR UPDATE clause and all tables with LONG columns selected by the query must be located on the same database. " by otn docs.
I have no idea.
Ott Karesz
http://www.trendo-kft.hu

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961796 wrote:
I am using an Oracle DB 10g. I have a table with 250 columns and I need to select 200 columns out of them. The table holds around 0.1 million rows. But when I run the select sql it takes 15 mins to return .1 million rows. Where as if I select only 10 or 15 columns the sql runs in less than a minute returning same number of rows. My sql looks like below:
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