dba_dependencies scripts

Oracle Tips by Burleson Consulting

Updated 22 July 2015

The dba_dependencies view describes all dependencies in the database between procedures, packages, functions, package bodies, and triggers, including dependencies on views created without any database links.

Also, see these scripts that use dba_dependencies to find all tables that are inside stored procedures and functions.

Also related is the utldtree utility procedure for identifying object dependencies.

Oracle expert Jared Still has a wonderful interactive SQL*Plus script for tracking dependencies:

prompt Dependencies for Owner?:

col cowner noprint new_value uowner
set term off feed off
select upper('&1') cowner from dual;
set term on feed on

prompt Dependencies for Object?:

col cobject noprint new_value uobject
set term off feed off
select upper('&2') cobject from dual;
set term on feed on

set line 142 pages 60

column display_parent format a58
column display_child format a58
column referenced_owner noprint
column referenced_object noprint
column referenced_type noprint
column owner noprint
column object noprint
column type noprint
column last_ddl_time format a22 head 'CHILD DDL TIME'

undef 1 2

with dependencies as (
        -- top down through the heirarchy
        select /*+ no_merge */
                referenced_type || ' "' || referenced_owner || '"."' ||
                referenced_name || '"' as parent,
                type || ' "' || owner || '"."' || name || '"' as child,
                level hlevel,
                referenced_owner, referenced_name, referenced_type,
                owner, name, type
        from dba_dependencies
        start with
                referenced_owner = '&&uowner'
                and referenced_name = '&&uobject'
        connect by
                referenced_owner = prior owner
                and referenced_name = prior name
                and referenced_type = prior type
        union
        -- bottom up through the heirarchy
        select /*+ no_merge */
                referenced_type || ' "' || referenced_owner || '"."' ||
                referenced_name || '"' as parent,
                type || ' "' || owner || '"."' || name || '"' as child,
                level hlevel,
                referenced_owner, referenced_name, referenced_type,
                owner, name, type
        from dba_dependencies
        start with
                owner = '&&uowner'
                and name = '&&uobject'
        connect by
                owner = prior referenced_owner
                and name = prior referenced_name
                and type = prior referenced_type
        order by 1, 2
)
select lpad(' ',2*d.hlevel,' ') || d.parent display_parent, d.child
display_child, o.last_ddl_time
from dependencies d, dba_objects o
where o.owner = d.owner
and o.object_type = d.type
and d.name = o.object_name
order by parent, child
/

Here is another useful script for tracking object dependencies with dba_dependencies:

column c1 heading "object|level"         format a16
column c2 heading "object|name"          format a40
column c3 heading "referencing|object"   format a40

select
   lpad (' ', 2 * (level - 1)) || to_char (level, '999') as c1,
   owner || '.' || name || ' (' || type || ')' as c2,
   referenced_owner || '.' || referenced_name || ' (' || referenced_type || ')' as c3
from
   dba_dependencies
start with
   owner = 'SYS'
and
   name = 'my_tablename'
connect by prior
   referenced_owner = owner
and prior
   referenced_name = name
and prior
   referenced_type = type
and
   type = 'TABLE';

set lines 132

select distinct
   owner,
   name,
   referenced_name
from
   dba_dependencies
where
   type in ('PACKAGE BODY','PROCEDURE','TRIGGER')
and
   referenced_type = 'SEQUENCE';

select
   referenced_name,
   referenced_type
from
   dba_dependencies
where
   name='my_tablename';

select
   referenced_name,
   referenced_type
from
   dba_dependencies
where
   name='CUSTOMER'
and
   referenced_type='TABLE'

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