Script: code_dep_tree.sql

-- -----------------------------------------------------------------------------------
        -- Author       : Pavan Yennampelli
    -- Description  : Displays a tree of dependencies of specified object.
    -- Call Syntax  : @code_dep_tree (schema-name) (object-name)
    -- 
    -- -----------------------------------------------------------------------------------
    SET VERIFY OFF
    SET LINESIZE 255
    SET PAGESIZE 1000

    COLUMN referenced_object FORMAT A50
    COLUMN referenced_type FORMAT A20
    COLUMN referenced_link_name FORMAT A20

    SELECT RPAD(' ', level*2, ' ') || a.referenced_owner || '.' || a.referenced_name AS referenced_object,
           a.referenced_type,
           a.referenced_link_name
    FROM   all_dependencies a
    WHERE  a.owner NOT IN ('SYS','SYSTEM','PUBLIC')
    AND    a.referenced_owner NOT IN ('SYS','SYSTEM','PUBLIC')
    AND    a.referenced_type != 'NON-EXISTENT'
    START WITH a.owner = UPPER('&1')
    AND        a.name  = UPPER('&2')
    CONNECT BY a.owner = PRIOR a.referenced_owner
    AND        a.name  = PRIOR a.referenced_name
    AND        a.type  = PRIOR a.referenced_type;

    SET VERIFY ON
    SET PAGESIZE 22