Oracle View Metadata  ..

SET LONG 20000 LONGCHUNKSIZE 20000 PAGESIZE 0 LINESIZE 1000 FEEDBACK OFF VERIFY OFF TRIMSPOOL ON
BEGIN
   DBMS_METADATA.set_transform_param (DBMS_METADATA.session_transform, 'SQLTERMINATOR', true);
   DBMS_METADATA.set_transform_param (DBMS_METADATA.session_transform, 'PRETTY', true);
END;
/


SELECT DBMS_METADATA.get_ddl ('VIEW', view_name, owner) FROM   dba_views
WHERE  1=1
AND view_name = '&View_name';




SET LONG 20000 LONGCHUNKSIZE 20000 PAGESIZE 0 LINESIZE 1000 FEEDBACK OFF VERIFY OFF TRIMSPOOL ON
BEGIN
   DBMS_METADATA.set_transform_param (DBMS_METADATA.session_transform, 'SQLTERMINATOR', true);
   DBMS_METADATA.set_transform_param (DBMS_METADATA.session_transform, 'PRETTY', true);
END;
/

SELECT DBMS_METADATA.get_ddl ('VIEW', view_name, owner)
FROM   dba_views
WHERE  owner      = UPPER('&1')
AND    view_name = DECODE(UPPER('&2'), 'ALL', view_name, UPPER('&2'));

SET PAGESIZE 14 LINESIZE 100 FEEDBACK ON VERIFY ON

set long 200000 pages 0 lines 150

select dbms_metadata.GET_DDL('VIEW',u.view_name,DECODE(u.owner,'SYS','',owner)) 

from   all_views u

where 1=1

and  owner IN ('SYS') 

--and owner IN ('ANUJ') 

and view_name='ALL_IND_STATISTICS'

order by owner,view_name ;

Or 

select

  dbms_metadata.get_ddl('VIEW', 'ALL_IND_STATISTICS') stmt

from

  dual;