Du kan få opkald til procedurer inden for en pakke med PL/Scope, startende med:
alter session set plscope_settings = 'IDENTIFIERS:ALL';
Hvis du så omkompilerer din pakke, her ved hjælp af en simpel oversigt baseret på din beskrivelse:
create or replace package p42 as
procedure a;
procedure b;
procedure c;
procedure d;
function f return number;
end p42;
/
create or replace package body p42 as
procedure a is
begin
b;
c;
end a;
procedure b is
n number;
begin
n := f;
end b;
procedure c is
n number;
begin
n := f;
end c;
procedure d is
begin
null;
end d;
function f return number is
begin
return 42;
end f;
end p42;
/
så kan du se de forskellige referencer i user_identifiers udsigt. Brug eksemplet fra dokumentationen til at få en disposition:
WITH v AS (
SELECT Line,
Col,
INITCAP(NAME) Name,
LOWER(TYPE) Type,
LOWER(USAGE) Usage,
USAGE_ID,
USAGE_CONTEXT_ID
FROM USER_IDENTIFIERS
WHERE Object_Name = 'P42'
AND Object_Type = 'PACKAGE BODY'
)
SELECT RPAD(LPAD(' ', 2*(Level-1)) ||
Name, 20, '.')||' '||
RPAD(Type, 20)||
RPAD(Usage, 20)
IDENTIFIER_USAGE_CONTEXTS
FROM v
START WITH USAGE_CONTEXT_ID = 0
CONNECT BY PRIOR USAGE_ID = USAGE_CONTEXT_ID
ORDER SIBLINGS BY Line, Col
/
IDENTIFIER_USAGE_CONTEXTS
-------------------------------------------------------------
P42................. package definition
A................. procedure definition
B............... procedure call
C............... procedure call
B................. procedure definition
N............... variable declaration
Number........ number datatype reference
N............... variable assignment
F............. function call
C................. procedure definition
N............... variable declaration
Number........ number datatype reference
N............... variable assignment
F............. function call
D................. procedure definition
F................. function definition
Number.......... number datatype reference
For at komme noget tættere på det, du ønsker, har du stadig brug for en hierarkisk forespørgsel for at finde navnet på hver procedure/funktion, der kalder en anden, da du ikke er interesseret i (f.eks.) tildelingstrinnene, bare hvor de skete.
Som udgangspunkt kunne du gøre:
select *
from (
select name, type, connect_by_root(name) as root_name,
connect_by_root(type) as root_type, connect_by_isleaf as isleaf
from user_identifiers
start with object_type = 'PACKAGE BODY'
and object_name = 'P42'
and type in ('FUNCTION', 'PROCEDURE')
and usage = 'DEFINITION'
connect by object_type = prior object_type
and object_name = prior object_name
and usage_context_id = prior usage_id
)
where type in ('FUNCTION', 'PROCEDURE');
NAME TYPE ROOT_NAME ROOT_TYPE ISLEAF
---- ------------------ --------- --------- ----------
A PROCEDURE A PROCEDURE 0
B PROCEDURE A PROCEDURE 1
C PROCEDURE A PROCEDURE 1
B PROCEDURE B PROCEDURE 0
F FUNCTION B PROCEDURE 1
C PROCEDURE C PROCEDURE 0
F FUNCTION C PROCEDURE 1
D PROCEDURE D PROCEDURE 1
F FUNCTION F FUNCTION 0
filtrer derefter bladknuderne og kombiner dem, der ringer:
select root_name, root_type,
listagg(case when name = root_name then null else name end, ', ')
within group (order by name) as callers
from (
select name, type, connect_by_root(name) as root_name,
connect_by_root(type) as root_type, connect_by_isleaf as isleaf
from user_identifiers
start with object_type = 'PACKAGE BODY'
and object_name = 'P42'
and type in ('FUNCTION', 'PROCEDURE')
and usage = 'DEFINITION'
connect by object_type = prior object_type
and object_name = prior object_name
and usage_context_id = prior usage_id
)
where type in ('FUNCTION', 'PROCEDURE')
and isleaf = 1
group by root_name, root_type;
ROOT_NAME ROOT_TYPE CALLERS
--------- --------- --------------------
A PROCEDURE B, C
B PROCEDURE F
C PROCEDURE F
D PROCEDURE
Men det viser ikke F; du kan tilføje en ydre forbindelse for at få det:
with ui as (
select * from user_identifiers
where object_type = 'PACKAGE BODY'
and object_name = 'P42'
),
calls as (
select object_type, object_name, name, type, signature,
connect_by_root(name) as root_name,
connect_by_root(type) as root_type,
connect_by_root(signature) as root_signature,
connect_by_isleaf as isleaf
from ui
start with type in ('FUNCTION', 'PROCEDURE')
and usage = 'DEFINITION'
connect by usage_context_id = prior usage_id
and prior usage != 'CALL'
)
select ui.name, ui.type,
listagg(case when c.name = c.root_name then null else c.name end, ', ')
within group (order by c.name) as callers
from ui
left join calls c on c.object_type = ui.object_type
and c.object_name = ui.object_name
and c.root_type = ui.type
and c.root_name = ui.name
and c.root_signature = ui.signature
and c.type in ('FUNCTION', 'PROCEDURE')
and c.isleaf = 1
where ui.type in ('FUNCTION', 'PROCEDURE')
and ui.usage = 'DEFINITION'
group by ui.name, ui.type;
NAME TYPE CALLERS
---- ------------------ --------------------
A PROCEDURE B, C
B PROCEDURE F
C PROCEDURE F
D PROCEDURE
F FUNCTION
Jeg er ret sikker på, at det kan forenkles...
At få hoved/slave/uafhængig flag er lidt vanskeligere; du skal beslutte, hvad hver af disse betyder (f.eks. main har opkald, der går ud, men ingen opkald, der kommer ind; independent har ingen opkald ind eller ud; slave alt andet) muligvis med yderligere joins for at finde ud af tingene.
Så dette er et udgangspunkt, der giver dig nogle af oplysningerne og forhåbentlig peger på ting, du skal udforske for at få al den information, du har brug for, i det format, du har brug for det.