[QUOTE][i]Originally posted by pwoneill [/i]
[B]Check out [url]http://technet.oracle.com/doc/oracle8i_816/server.816/a76989/ch4d2.htm#37749[/url]

To modify a LOB you use

MODIFY LOB (lob item)
not
MODIFY (column name) LOB (column name)

The lob item is the column name.

Whenever you have a command syntax problem it's best and fastest to check technet's sql reference for your version of the database, you'll also learn more about it. [/B][/QUOTE]

I have tried the syatax as suggested by you.
ALTER TABLE (table)
MODIFY LOB(lob item)
STORE AS(tablespace);

I aam still getting the same error.