Oracle Dependency Tree

SELECT LPAD(' ', (A.NIVEL - 1) * 2) || OBJ.NAME A,
LPAD(' ', (A.NIVEL - 1) * 2) || CONS.NAME B
FROM SYS.OBJ$ OBJ,
SYS.CON$ CONS,
(SELECT OBJ# OBJ#, CON#, LEVEL NIVEL
FROM SYS.CDEF$
WHERE RCON# IS NOT NULL AND ROBJ# IS NOT NULL
CONNECT BY ROBJ# = PRIOR OBJ# AND ROBJ# != OBJ# AND
PRIOR ROBJ# != PRIOR OBJ#
START WITH ROBJ# = (SELECT OBJ#
FROM SYS.OBJ$
WHERE NAME = UPPER('fnd_concurrent_requests') AND TYPE# = 2 AND
OWNER# = USERENV('SCHEMAID'))) A
WHERE CONS.CON# = A.CON# AND OBJ.OBJ# = A.OBJ# AND OBJ.TYPE# = 2
UNION ALL
SELECT LPAD(' ', (A.NIVEL - 1) * 2) || OBJ.NAME A, TO_CHAR(NULL)
FROM SYS.OBJ$ OBJ,
(SELECT D_OBJ# OBJ#, LEVEL NIVEL
FROM SYS.DEPENDENCY$
CONNECT BY P_OBJ# = PRIOR D_OBJ#
START WITH P_OBJ# = (SELECT OBJ#
FROM SYS.OBJ$
WHERE NAME = UPPER('fnd_concurrent_requests') AND
OWNER# = USERENV('SCHEMAID'))) A
WHERE OBJ.OBJ# = A.OBJ# AND OBJ.TYPE# != 2