Calling Procedure or function in the package - oracle

I have Created a Package and procedure and functions within.
I have a small doubt.
If I have created procedure name employee_dtls in the package and at the same time
employee_dtls procedure as an independent object in the schema.
But i want to call the independent procedure employee_dtls inside my package but when I am trying to call
the procedure within the package is getting executed an independent one is not being called.
I assume since the name of both the procedures are the same it is calling the procedure inside the package.
Please help what can I do in this case?

What can you do? Qualify procedure name (as Justin commented). Here's how (read comments within code):
Standalone procedure:
SQL> create or replace procedure p_test is
2 begin
3 dbms_output.put_line('...standalone P_TEST procedure');
4 end;
5 /
Procedure created.
Packaged procedure:
SQL> create or replace package pkg_test is
2 procedure p_test;
3 procedure p_run;
4 end;
5 /
Package created.
SQL> create or replace package body pkg_test is
2 procedure p_test is
3 begin
4 dbms_output.put_line('...packaged P_TEST procedure');
5 end;
6
7
8 procedure p_run is
9 begin
10 dbms_output.put_line('calling P_TEST');
11 p_test; -- no qualifier - runs the packaged procedure (that's what you have now)
12
13 dbms_output.put_line('calling SCOTT.P_TEST');
14 scott.p_test; -- procedure name preceded by owner name - runs the standalone procedure
15
16 dbms_output.put_line('calling PKG_TEST.P_TEST');
17 pkg_test.p_test; -- procedur ename preceded by package name - runs the packaged procedure
18 end;
19 end;
20 /
Package body created.
Testing:
SQL> set serveroutput on;
SQL> exec pkg_test.p_run;
calling P_TEST
...packaged P_TEST procedure
calling SCOTT.P_TEST
...standalone P_TEST procedure
calling PKG_TEST.P_TEST
...packaged P_TEST procedure
PL/SQL procedure successfully completed.
SQL>

Related

procedure compiling in oracle is not working

I have written below procedure in oracle but its getting compiled with error.
CREATE OR REPLACE PROCEDURE PROC_MIGRATE_ONEIBER
AS
BEGIN
-- EXECUTE PROCEDURE ONEFIBER_LNK_MIGRATE;
execute ONEFIBER_LNK_MIGRATE;
execute ONEFIBER_LNK_MIGRATE_CITY;
execute ONEFIBER_LNK_MIGRATE_NLDC;
END;
-- NULL;
END PROC_MIGRATE_ONEIBER;
I have to execute 3 procedures in one main procedure without any IN or OUT parameters. But its not working
Just remove the execute keyword. Whenever you want to call another procedure within the procedure you can directly use the procedure name and parameters, If any.
CREATE OR REPLACE PROCEDURE PROC_MIGRATE_ONEIBER AS
BEGIN
-- EXECUTE PROCEDURE ONEFIBER_LNK_MIGRATE;
ONEFIBER_LNK_MIGRATE;
ONEFIBER_LNK_MIGRATE_CITY;
ONEFIBER_LNK_MIGRATE_NLDC;
--END;
-- NULL;
END PROC_MIGRATE_ONEIBER;
/
Update: Check this small code of how it should be. All procedures created in this answer are just for demo. (Make sure that the procedure that you are calling is not INVALID)
SQL>
SQL> CREATE OR REPLACE PROCEDURE ONEFIBER_LNK_MIGRATE AS
2 BEGIN
3 NULL;
4 END;
5 /
Procedure created.
SQL>
SQL> CREATE OR REPLACE PROCEDURE ONEFIBER_LNK_MIGRATE_CITY AS
2 BEGIN
3 NULL;
4 END;
5 /
Procedure created.
SQL>
SQL> CREATE OR REPLACE PROCEDURE ONEFIBER_LNK_MIGRATE_NLDC AS
2 BEGIN
3 NULL;
4 END;
5 /
Procedure created.
SQL>
SQL> CREATE OR REPLACE PROCEDURE PROC_MIGRATE_ONEIBER AS
2 BEGIN
3 ONEFIBER_LNK_MIGRATE;
4 ONEFIBER_LNK_MIGRATE_CITY;
5 ONEFIBER_LNK_MIGRATE_NLDC;
6 END PROC_MIGRATE_ONEIBER;
7 /
Procedure created.
SQL>

ORA-00900: invalid SQL statement- when run a package in oracle 12c

I am using Oracle 12c database and trying to run a package using SQL commands.
CREATE OR REPLACE PACKAGE "PK_CP_OTM" as
FUNCTION F_CP_OPTIMIZATION (
v_current_day IN VARCHAR2,
v_branch_code IN VARCHAR2)
RETURN VARCHAR2;
END PK_CP_OTM;
When I try to execute it using:
DECLARE
BEGIN
EXECUTE IMMEDIATE PK_CP_OTM.F_CP_OPTIMIZATION('20190409','BRNCD001');
END;
It shows:
ORA-00900: invalid SQL statement
ORA-06512: at line 3
00900. 00000 - "invalid SQL statement"
Thanks for your help.
As #Littlefoot said, you don't need dynamic SQL here, you can make a static call; but as you are calling a function you do need somewhere to put the result of the call:
declare
l_result varchar2(30); -- make it a suitable size
begin
l_result := pk_cp_otm.f_cp_optimization('20190409','BRNCD001');
end;
/
In SQL*Plus, SQL Developer and SQLcl you can use the execute client command (which might have caused some confusion) and a bind variable for the result:
var result varchar2(30);
exec :result := pk_cp_otm.f_cp_optimization('20190409','BRNCD001');
print result
There's nothing dynamic here, so - why would you use dynamic SQL at all?
Anyway: if you insist, then you'll have to select the function into something (e.g. a local variable). Here's an example
First, the package:
SQL> set serveroutput on
SQL>
SQL> create or replace package pk_cp_otm
2 as
3 function f_cp_optimization (v_current_day in varchar2,
4 v_branch_code in varchar2)
5 return varchar2;
6 end pk_cp_otm;
7 /
Package created.
SQL> create or replace package body pk_cp_otm
2 as
3 function f_cp_optimization (v_current_day in varchar2,
4 v_branch_code in varchar2)
5 return varchar2
6 is
7 begin
8 return 'Littlefoot';
9 end;
10 end pk_cp_otm;
11 /
Package body created.
How to call the function?
SQL> declare
2 l_result varchar2 (20);
3 begin
4 execute immediate
5 'select pk_cp_otm.f_cp_optimization (''1'', ''2'') from dual'
6 into l_result;
7
8 dbms_output.put_line ('result = ' || l_result);
9 end;
10 /
result = Littlefoot
PL/SQL procedure successfully completed.
SQL>

plsql procedures while executing an error invalid identifier 00904

Error message
CREATE TABLE DEPARTMENT(DID INT,DNAME VARCHAR2(20),DLOC VARCHAR2(20));
INSERT INTO DEPARTMENT VALUES(101,'SRINATH','HINDUPUR');
INSERT INTO DEPARTMENT VALUES(102,'SAINATH','ANANTAPUR');
create or replace PROCEDURE ADD_DEPARTMENT
(P_DID IN DEPARTMENT.DID%TYPE,
P_DNAME IN DEPARTMENT.DNAME%TYPE,
P_DLOC IN DEPARTMENT.DLOC%TYPE,
P_ERROR_MSG OUT VARCHAR2)
IS
BEGIN
INSERT INTO DEPARTMENT(DID,DNAME,DLOC)VALUES(P_DID,P_DNAME,P_DLOC);
COMMIT;
EXCEPTION
WHEN OTHERS THEN
P_ERROR_MSG:=SQLERRM;
END ADD_DEPARTMENT;
iam writing a simple procedure try to excute but it shows object_id:invalid identifier how i can solve
complete procedure execution image
One of your column names may be wrong in the parameter list/insert. Try just using varchar2 for all of them and see if that helps
create or replace PROCEDURE ADD_DEPT2
(P_DEPTNO IN VARCHAR2,
P_DNAME IN VARCHAR2,
P_LOC IN VARCHAR2,
P_ERROR_MSG OUT VARCHAR2)
IS
BEGIN
INSERT INTO DEPT1(DEPTNO,DNAME,LOC)VALUES(P_DEPTNO,P_DNAME,P_LOC);
COMMIT;
EXCEPTION
WHEN OTHERS THEN
P_ERROR_MSG :=SQLERRM;
END ADD_DEPT2;
"it will come same error can be displayed"
No, no it won't. Let's prove it by running the code you posted.
Here is your table:
SQL> CREATE TABLE DEPARTMENT(DID INT,DNAME VARCHAR2(20),DLOC VARCHAR2(20));
Table created.
SQL> INSERT INTO DEPARTMENT VALUES(101,'SRINATH','HINDUPUR');
1 row created.
SQL> INSERT INTO DEPARTMENT VALUES(102,'SAINATH','ANANTAPUR');
1 row created.
SQL>
Here is your procedure:
SQL> create or replace PROCEDURE ADD_DEPARTMENT
2 (P_DID IN DEPARTMENT.DID%TYPE,
3 P_DNAME IN DEPARTMENT.DNAME%TYPE,
4 P_DLOC IN DEPARTMENT.DLOC%TYPE,
5 P_ERROR_MSG OUT VARCHAR2)
6 IS
7 BEGIN
8 INSERT INTO DEPARTMENT(DID,DNAME,DLOC)VALUES(P_DID,P_DNAME,P_DLOC);
9 COMMIT;
10 EXCEPTION
11 WHEN OTHERS THEN
12 P_ERROR_MSG:=SQLERRM;
13 END ADD_DEPARTMENT;
14 /
Procedure created.
SQL>
And lo! not only does it compile but it runs without error too.
SQL> set serveroutput on
SQL> declare
2 v varchar2(128);
3 begin
4 add_department(666, 'Area 51', 'Roswell', v);
5 end;
6 /
PL/SQL procedure successfully completed.
SQL> select * from department;
DID DNAME DLOC
---------- -------------------- --------------------
101 SRINATH HINDUPUR
102 SAINATH ANANTAPUR
666 Area 51 Roswell
SQL>
So once again I ask, what is the problem?
"PLS-00905: object SCOTT.ADD_DEPARTMENT is invalid"
In SQL*Plus:
Connect as SCOTT
alter procedure add_department compile;
show errors
Or apply the equivalent sequence for whatever IDE you use to write your code.

Procedure in package specification

I have a package named save_db_values
I have two procedures named store_records and another one called db_activities.
db_activities will be called from my application by passing all values in db_activities I will be calling store_records procedure to do insert and delete.
Do I need to define store_records procedure in package specification? When I did not define store_records in specification I am getting error store_records not declared in this scope.
store_records procedure I do not want to expose and hence I did not add in specification.
How can I resolve this issue?
If you do not want some procedures to be publicly available you may not to declare them in the package specification. Declare them only in the package body. The cause of the error you are facing is declaration order of the procedures in the package body or lack of forward declaration. For example:
create or replace package Test_pkg as
2 procedure Proc1;
3 end;
4 /
Package created
create or replace package body Test_pkg as
2
3 procedure proc1 is
4 begin
5 proc2;
6 end;
7
8 procedure Proc2 is
9 begin
10 dbms_output.put_line('proc2 is being executed');
11 end;
12
13 end;
14 /
Warning: Package body created with compilation errors
Error: PLS-00313: 'PROC2' not declared in this scope
This is happening because we are calling Proc2 which declared later in the package. In this case our choices are:
Declare pro2 before the procedure which calls it
create or replace package body Test_pkg as
2
3
4 procedure Proc2 is
5 begin
6 dbms_output.put_line('proc2 is being executed');
7 end;
8
9 procedure proc1 is
10 begin
11 proc2;
12 end;
13
14 end;
15 /
Package body created
Use forward declaration.
create or replace package body Test_pkg as
2
3 procedure Proc2;
4
5 procedure proc1 is
6 begin
7 proc2;
8 end;
9
10 procedure Proc2 is
11 begin
12 dbms_output.put_line('proc2 is being executed');
13 end;
14
15
16 end;
17 /
Package body created
SQL> exec test_pkg.Proc1;
proc2 is being executed
PL/SQL procedure successfully completed
You can declare procedures just in the body, but the order in which they appear is relevant; the calling procedure must be defined after the called procedure. Or you use a forward declaration to make it easier:
package save_db_values is
procedure db_activities;
end save_db_values;
package body save_db_values is
procedure store records; -- forward declaration
procedure db_activities is
begin
store_records;
end;
procedure store records is
begin
null;
end;
end save_db_values;
It is happening because of writing procedure's body in the package body .
if you are not declaring any procedure in the package specification then you should write it at first place.
it will work :)

Get the name of the calling procedure or function in Oracle PL/SQL

Does anyone know whether it's possible for a PL/SQL procedure (an error-logging one in this case) to get the name of the function/procedure which called it?
Obviously I could pass the name in as a parameter, but it'd be nice to make a system call or something to get the info - it could just return null or something if it wasn't called from a procedure/function.
If there's no method for this that's fine - just curious if it's possible (searches yield nothing).
There is a package called OWA_UTIL (which is not installed by default in older versions of the database). This has a method WHO_CALLED_ME() which returns the OWNER, OBJECT_NAME, LINE_NO and CALLER_TYPE. Note that if the caller is a packaged procedure it will return the PACKAGE name not the procedure name. In this case there is no way of getting the procedure name; this is because the procedure name can be overloaded, so it's not necessarily very useful.
Find out more.
Since 10gR2 there is also the $$PLSQL_UNIT special function; this will also return the OBJECT NAME (i.e. package not packaged procedure).
I found this forum: http://www.orafaq.com/forum/t/60583/0/. It may be what you are looking.
Basically, you can use the Oracle supplied dbms_utility.format_call_stack:
scott#ORA92> CREATE TABLE error_tab
2 (who_am_i VARCHAR2(61),
3 who_called_me VARCHAR2(61),
4 call_stack CLOB)
5 /
Table created.
scott#ORA92>
scott#ORA92> CREATE OR REPLACE PROCEDURE d
2 AS
3 v_num NUMBER;
4 v_owner VARCHAR2(30);
5 v_name VARCHAR2(30);
6 v_line NUMBER;
7 v_caller_t VARCHAR2(100);
8 BEGIN
9 select to_number('a') into v_num from dual; -- cause error for testing
10 EXCEPTION
11 WHEN OTHERS THEN
12 who_called_me (v_owner, v_name, v_line, v_caller_t);
13 INSERT INTO error_tab
14 VALUES (who_am_i,
15 v_owner || '.' || v_name,
16 dbms_utility.format_call_stack);
17 END d;
18 /
Procedure created.
scott#ORA92> SHOW ERRORS
No errors.
scott#ORA92> CREATE OR REPLACE PROCEDURE c
2 AS
3 BEGIN
4 d;
5 END c;
6 /
Procedure created.
scott#ORA92> CREATE OR REPLACE PROCEDURE b
2 AS
3 BEGIN
4 c;
5 END b;
6 /
Procedure created.
scott#ORA92> CREATE OR REPLACE PROCEDURE a
2 AS
3 BEGIN
4 b;
5 END a;
6 /
Procedure created.
scott#ORA92> execute a
PL/SQL procedure successfully completed.
scott#ORA92> COLUMN who_am_i FORMAT A13
scott#ORA92> COLUMN who_called_me FORMAT A13
scott#ORA92> COLUMN call_stack FORMAT A45
scott#ORA92> SELECT * FROM error_tab
2 /
WHO_AM_I WHO_CALLED_ME CALL_STACK
------------- ------------- ---------------------------------------------
SCOTT.D SCOTT.C ----- PL/SQL Call Stack -----
object line object
handle number name
6623F488 1 anonymous block
66292138 13 procedure SCOTT.D
66299430 4 procedure SCOTT.C
6623D2F8 4 procedure SCOTT.B
6624F994 4 procedure SCOTT.A
66299984 1 anonymous block
scott#ORA92>
Basically, all you need to do is to define vars and pass them in a call to a utility method to fill them up with values:
create or replace procedure some_test_proc (p_some_int int)
is
owner_name VARCHAR2 (100);
caller_name VARCHAR2 (100);
line_number NUMBER;
caller_type VARCHAR2 (100);
begin
....
OWA_UTIL.WHO_CALLED_ME (owner_name,caller_name,line_number,caller_type);
-- now you can insert those values along with systimestamp into a log file
....
end;

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