Wrong number or types of arguments in call to procedure name

Question

assuming i have this pl/sql code:
CREATE OR REPLACE PACKAGE MyPackage AS
TYPE tab_array IS TABLE OF VARCHAR2(300);
PROCEDURE my_procedure(in_values IN tab_array);
END MyPackage;
CREATE OR REPLACE PACKAGE BODY MyPackage AS
PROCEDURE my_procedure(in_values IN tab_array) IS
BEGIN
DBMS_OUTPUT.PUTLINE('This is only a test');
END my_procedure;
END MyPackage;
when i tried typing this on SQL*Plus
execute mypackage.my_procedure('value1, value2, value3');
it gives an error like:
PLS-00306: wrong number or types of arguments in call to 'MY_PROCEDURE'
PL/SQL: Statement ignored
Is my parameters incorrect? What should the parameter be? Please give me a sample code.
Thanks.

Answer 1

Hi,
1. typing error: there should be an underline.
i.e. DBMS_OUTPUT.PUT_LINE('This is only a test');
2. Since the tab_array type is user defined (although
it is VARCHAR2), When the package is called, it cannot
recognize what you pass in even if you declare it in
the calling block.
You should create it as global type, then this type
can be visible to all other PL/SQL, stored procedure &
stored package. you can type the following in the SQL/PLUS:
SQL> CREATE TYPE tab_array AS TABLE OF VARCHAR2(300);
2 /
3. Remove the declaration line for the tab_array in the package
and package body. If you declare it locally in the package,
it will override the global one and cannot be recognized again.
So just remove it. it should be compiled and run.
Hope you succeed.
Thanks.