Understanding About Object Creation with same name | Object Overloading in PLSQL

 
-- FIRST Session  ===================================


XXSD_TEST_FUN(PAR_1)

XXSD_TEST_FUN(PAR_1,PAR_2)

XXSD_TEST_FUN(PAR_1,PAR_1_2,PAR_3)


--=======================================
can we create DB Object with same name  ? 
how to use whenever it is required ?
--=======================================

---======  TABLE --==========

select * from XXMK_TEST

create table XXMK_TEST ( EMPID NUMBER, EMPNAME VARCHAR2(100) )

create table XXSD.XXMK_TEST ( EMPID NUMBER, EMPNAME VARCHAR2(100) )


create table XXMK_TEST ( EMPID NUMBER )

create table XXSD.XXMK_TEST ( EMPID NUMBER )

select * from all_objects 
where object_name = 'XXMK_TEST' 

edit  XXMK_TEST

select * from XXMK_TEST

edit  XXSD.XXMK_TEST

select * from XXSD.XXMK_TEST


---======  VIEW--==========


create or replace view  XXMK_TEST as 
select * from  APPS.XXMK_TEST

create or replace view  XXSD.XXMK_TEST as 
select * from  APPS.XXMK_TEST

create or replace view  XXMK_TEST_V as 
select * from  APPS.XXMK_TEST

--drop view XXSD.XXMK_TEST

select * from all_objects 
where object_name like 'XXMK_TEST%'

select * from XXMK_TEST_V


---======  SUB Program  Function -==========


create or replace function XXMK_TEST RETURN NUMBER  
AS
V_NUM NUMBER;
BEGIN

select 1 INTO V_NUM from dual;
RETURN V_NUM;

END;



--drop function XXMK_TEST1

select * from all_objects 
where object_name = 'XXMK_TEST'

---======  SUB Program  Procedure -==========

create or replace procedure XXMK_TEST
AS
V_NUM NUMBER;
BEGIN

select 1 INTO V_NUM from dual;
dbms_output.put_line (V_NUM);

END;


--drop procedure XXMK_TEST1 

select * from all_objects 
where object_name = 'XXMK_TEST'



--=================  between Function and Procedure --===============

create or replace procedure XXMK_TEST_SUBPROGRAM 
AS
V_NUM NUMBER;
BEGIN

select 1 INTO V_NUM from dual;
dbms_output.put_line (V_NUM);

END;



create or replace function XXMK_TEST_SUBPROGRAM RETURN NUMBER 
AS
V_NUM NUMBER;
BEGIN

select 1 INTO V_NUM from dual;
dbms_output.put_line (V_NUM);

return V_NUM;

END;


--======================================
But when we change schema 
--======================================


create or replace function XXSD.XXMK_TEST_SUBPROGRAM RETURN NUMBER 
AS
V_NUM NUMBER;
BEGIN

select 1 INTO V_NUM from dual;
dbms_output.put_line (V_NUM);

return V_NUM;

END;



select * from all_objects 
where object_name = 'XXMK_TEST_SUBPROGRAM' 


--=========================================
can we create same subprogram with different -2 parameter  same as
--=========================================


create or replace function XXMK_SUBPROGRAM ( P_PARA_1 NUMBER) RETURN NUMBER 
AS

BEGIN

return P_PARA_1;

END;

create or replace function XXMK_SUBPROGRAM ( P_PARA_1 NUMBER, P_PARA_2 NUMBER) RETURN NUMBER 
AS

BEGIN

return P_PARA_2;

END;


create or replace function XXMK_SUBPROGRAM ( P_PARA_1 NUMBER, P_PARA_2 NUMBER, P_PARA_3 NUMBER) RETURN NUMBER 
AS

BEGIN

return P_PARA_3;

END;

---  How to use ablove all

select XXMK_SUBPROGRAM(1,2,3)  from dual


select * from all_objects 
where object_name = 'XXMK_SUBPROGRAM'

--=======================================
--yes we can create a function with same name in differnet schema
--=======================================

create  function XXMK_SUBPROGRAM_N ( P_PARA_1 NUMBER) RETURN NUMBER 
AS

BEGIN

return P_PARA_1;

END;



create  function XXSD.XXMK_SUBPROGRAM_N ( P_PARA_1 NUMBER, P_PARA_2 NUMBER) RETURN NUMBER 
AS

BEGIN

return P_PARA_2;

END;




--==========================================
--can we create procedure with same name or different schema
--==========================================

create or replace procedure XXMK_TEST_SUBPROGRAM ( P_PARA_1 IN NUMBER)  
AS

BEGIN

dbms_output.put_line (P_PARA_1);

END;

create or replace procedure XXMK_TEST_SUBPROGRAM ( P_PARA_1 IN NUMBER, P_PARA_2 IN NUMBER)  
AS

BEGIN

dbms_output.put_line (P_PARA_2);

END;


create or replace procedure XXSD.XXMK_TEST_SUBPROGRAM ( P_PARA_1 IN NUMBER, P_PARA_2 IN NUMBER,P_PARA_3 IN NUMBER)  
AS

BEGIN

dbms_output.put_line (P_PARA_3);

END;

--========================================
can we create same in different schema -- NO
--========================================

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