Can I call a function in another package?

Question

Dear all,
Can I call a function in another package?
Say I have package A, and package B.
Is it possible for me to call a function in inside package A, within a function inside package B?
If yes, what's the syntax.
Thanks in advance!

Answer 1

The variable in the calling package that will receive the value of the function in the other package needs to be defined based on that type in the other package directly:
sql>create or replace package pkg_a
  2  is
  3    type testTable is table of varchar2(10) index by binary_integer;
  4 
  5    function f_a return testTable;
  6  end;
  7  /
Package created.
sql>create or replace package body pkg_a
  2  is
  3    function f_a
  4      return testTable
  5    is
  6      v_table testTable;
  7    begin
  8      v_table(1) := 'One';
  9      v_table(2) := 'Two';
10      return v_table;
11    end; 
12  end;
13  /
Package body created.
sql>create or replace package pkg_b
  2  is
  3    procedure p_b;
  4  end; 
  5  /
Package created.
sql>create or replace package body pkg_b
  2  is
  3    procedure p_b
  4    is
  5      v_table pkg_a.testTable;  -- this variable has to be based on the type in pkg_a
  6    begin
  7      v_table := pkg_a.f_a;
  8      for i in 1..v_table.count loop
  9        dbms_output.put_line( v_table(i) );
10      end loop;
11    end;
12  end; 
13  /
Package body created.
sql>exec pkg_b.p_b
One
Two
PL/SQL procedure successfully completed.