SQL> create table t4(c1 clob) tablespace users;
Table created.
SQL> alter table t4 move lob(c1) store as (tablespace tools);
Table altered.
Under 8i and 9i, the LOB index is located in the same tablespace as the LOB segment. The tablespace specification and storage values for LOB index are ignored.
Alternatively, you can exp, pre-create CLOB tables, and imp with "ignore=y".
Also see Metalink Doc ID 159995.1
