Different NLS_LENGTH_SEMANTICS in two dbs...and ORA-12899

Question

Hi,
I have created two db instances on the same server. One with db characterset EL8MSWIN1253(single-byte characterset) , NLS_LENGTH_SEMANTICS=BYTE and the other with UTF8(multi-byte characterset) NLS_LENGTH_SEMANTICS=CHAR.
I'm trying to export a table from db1 and import to db2 ... respectively reffered above.
This table has the following definition:
SQL> CREATE TABLE TEST(A NUMBER(1) , B VARCHAR2(10));
Table created
SQL> INSERT INTO TEST VALUES(1 , 'TEST_TEST');
1 row inserted
SQL> COMMIT;
Commit complete
SQL> INSERT INTO TEST VALUES(2 , 'ΤΕΣΤ_ΤΕΣΤ');     <------------greek chars 1 row inserted
SQL> COMMIT;
Commit completeIn order to accomplish the aim....
1) I exported the table
2) I imported it without the rows - only to 'precreate' the tables
3) I imported it with rows ... but error ORA-12899 (current value exceeds the max length specified) occurs....
Of course this type of error is not a suprise ...since after step 2 , when i issue the command:
SQL> DESC TEST;
Name Type              Nullable Default Comments
A    NUMBER(1)         Y                        
B    VARCHAR2(10 BYTE) Y                        <---------the NLS_LENGTH_SEMANTICS of the exported file has been used...Issuing the command
SQL> alter table test modify b varchar2(10 char);
Table alteredbefore step 3 and after repeating step 3 ... solves the problem(ORA-12899).
However , is there any other way to do this .....????? (imagine that there are some hundreds/thousands of tables....to be imported in such a db)...
Note: I use Db10g v.2
Thanks...
Sim

Answer 1

Actually.. there is one ...Metalink - Note : 313175.1...
However , i tried to modify/accomplish the scenarios expressed on :
1)Metalink Note: 144808.1 (point E1 - How to go to CHAR semantics ? -> use exp/imp ) and
2)the steps described on:
http://otn.oracle.com/oramag/oracle/03-mar/o23sql.html
Have anybody accomplished it with exp/imp as described above on two dbs running different db charactrer sets(one single-byte and the other UTF8)...????
Thanks....
Sim