SQL>
SQL>
SQL> create table my_lob(
2 id number,
3 c clob )
4 /
Table created.
SQL> insert into my_lob values ( 1, empty_clob() );
1 row created.
SQL>
SQL>
SQL> select dbms_lob.getchunksize( c ) from my_lob;
DBMS_LOB.GETCHUNKSIZE(C)
------------------------
8132
1 row selected.
SQL>
SQL> drop table my_lob;
Table dropped.
SQL> --