adding all entries from one collection to another?

Hello

my database is a 11g

I have a function (in a box) than returnes a collection.

I want to call the function multiple times and the caller must combine all entries selected in a single collection (new?):

create or replace package my_test is
  procedure public_proc;
end my_test;

create or replace package body my_test is

cursor test_data(selected_type varchar2) is
  select (1+ABS(MOD(dbms_random.random,100000))) as id, selected_type||level as my_value from dual connect by level<5;

type my_type is table of test_data%row_type;

function private_function(selected_type varchar2) return  my_type is
  v_my_type my_type := my_type();
begin
  open  test_data(selected_type=> selected_type);
  fetch  test_data bulk collect into  v_my_type;
  close  test_data;
  return  v_my_type;
end  private_function;

procedure public_proc is
  v_my_type_a my_type := my_type();
  v_my_type_b my_type := my_type();
  v_my_type_ab my_type := my_type();
begin
  v_my_type_a := private_function(selected_type=>'A');
  v_my_type_b := private_function(selected_type=>'B');
  -- simplest solution to combine  v_my_type_a and  v_my_type_b to  v_my_type_ab, possible without explicit loop?
for i in  v_my_type_ab.first..v_my_type_ab.last loop
    dbms_output.put_line('id: '||v_my_type_ab(i).id||', value:'||v_my_type_ab(i).my_value);
end loop;
end public_proc;
end my_test;

desired output (x instead of random number):

id:x, value:A1
id:x, value:A2
id:x, value:A3
id:x, value:A4
id:x, value:B1
id:x, value:B2
id:x, value:B3
id:x, value:B4

Good bye

DPT

I can also do a big collect in against a collection of nested type?

OK – what a trick question?

You ask if you can do what the code you first published already does?

Hmmm - well, I'll say YES - since your code is already doing it.

What type of collection, exactly, do you think that you have agreed with this line?

type my_type is % row_type test_data table;

Of course, 'row_type' is not valid; It is % ROWTYPE.

If you are unsure what type of collection which is then I suggest that you only consider "with the help of the Collections of PL/SQL and Records" in the language PL/SQL doc

http://docs.Oracle.com/CD/B28359_01/AppDev.111/b28370/Collections.htm

He explained each of the collection types, explain how to choose one that suits and examples of their use.

DECLARE

cursor emp_data (my_job emp.job%type) is select *.

from emp where job = my_job;

type my_emp_data is table of the emp_data % rowtype;

my_emp_data v1.

my_emp_data v2.

my_emp_data v3;

BEGIN

Open emp_data ("REGISTRAR");

extraction emp_data bulk collect in v1;

close emp_data;

Open emp_data ("SELLER");

extraction emp_data bulk collect in v2;

close emp_data;

v3: = v1 v2 of MULTISET UNION;

for me in v3.first... loop v3. Last

dbms_output.put_line (v3 (i) .ename |) ' - ' || V3 (i) .job);

end loop;

END;

/

SMITH - CLERK

ADAMS - CLERK

JAMES - CLERK

MILLER - CLERK

ALLEN - SELLER

WARD - SELLER

MARTIN - SELLER

TURNER - SELLER

Also note that I do NOT use a query to combine collections:

v3: = v1 v2 of MULTISET UNION;

Tags: Database

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