The object Type VARRAY

Similar Questions

• Define a map or ORDER method for the object type

  Hi gurus

  I created an object and then its type and then I use this object and type based on line, see below:

  Create the object

  CREATE OR REPLACE

  TYPE test_object

  IS

  OBJECT

  (

  next_appearance_dt DATE, - next_appearance_dt

  youth_adult VARCHAR2 (5) - youth_adult

  ) ;

  
  /

  Create the object Type

  CREATE or REPLACE TYPE t_docket_object IS TABLE OF THE test_object;

  /

  Create function Pipeline

  FUNCTION to CREATE or REPLACE f_report (p_dt date, p_c_cd VARCHAR2)
  return t_test_object pipeline
  IS
  BEGIN
  FOR J IN)
  Select distinct test_object)
  next_appearance_dt,--862,
  'YOUTH '.
  ) AS test_object
  Jen.next_appearance base
  WHERE 1 = 1
  AND (base.next_appearance_dt = p_dt)
  AND (base.circuit_point_cd = p_c_cd)
  - and cse.information_id = 322
  -ORDER 15 - alias_name
  )

  loop
  PIPE ROW (J.test_object);
  END loop;
  END;

  /

  Run function

  SELECT * FROM TABLE (F_REPORT (TO_DATE('25-sep-2015','dd-mon-yyyy'),'1 '))

  Error

  ORA-22950: cannot ORDER objects without map or ORDER method

  ORA-06512: at "F_REPORT", line 5

  22950 00000 - "cannot ORDER objects without map or ORDER method.

  * Cause: an object type must have a defined for map or ORDER method

  all comparisons other than equality and inequality comparisons.

  * Action: Define a map or ORDER method for the object type

  I know the reason of this error and the reason is that I use the clause separate in my pipeline service, but do not know how to get rid of this error...

  Confuse you the type of table with the object type. He forge

  Select test_object (next_appearance_dt) test_object

  Not:

  Select t_test_object (next_appearance_dt) test_object

  Then:

  SQL > CREATE OR REPLACE
  FUNCTION f_report (DATE p_dt 2,
  3 P_C_CD VARCHAR2
  4                   )
  5 t_test_object of RETURN
  6 IN PIPELINE
  7 EAST
  BEGIN 8
  9 FOR (IN) v_rec
  10 WITH () DID
  11. SELECT TO_DATE('01-jan-2015','dd-mon-yyyy') NEXT_APPEARANCE_DT
  the double 12
  13                                  )
  14 select test_object (next_appearance_dt) test_object
  15                          from  t
  16                      ) LOOP
  PIPE 17 ROW (v_rec.test_object);
  18 END OF LOOP;
  END 19;
  20.

  The function is created.

  SY.

• How to fill the value in the nested table by using the object type

  
  Hi gurus

  I created an object type and able to fill the values in it, now I want to create a nested table type of this object and fill it but looks like I'm doing something wrong, see my code below.

  Code example

  CREATE or REPLACE TYPE countries_o
  AS
  OBJECT
  (
  COUNTRY_ID TANK (2 BYTES),
  COUNTRY_NAME VARCHAR2 (40 BYTE),
  REGION_ID NUMBER);
  /

  create or replace type countries_t is table of the countries_o;
  
  /

  CREATE OR REPLACE

  ABC of the PROCEDURE

  IS

  v_print countries_t; -: = arr_countries_t('01','Aus',1);

  BEGIN

  v_print: = countries_t('01','A',11);

  DBMS_OUTPUT. Put_line (v_print. COUNTRY_ID | v_print. COUNTRY_NAME | v_print. REGION_ID);

  END;

  /

  Error

  • Error (6.3): PL/SQL: statement ignored
    
  • Error (6,12): PLS-00306: wrong number or types of arguments in the call to 'COUNTRIES_T '.
    
  • Error (7.3): PL/SQL: statement ignored
    
  • Error (7.32): PLS-00302: component 'COUNTRY_ID' must be declared

  Thanks in advance

  Concerning

  Muzz

  Hi user,

  Here is another method that you can try-

  CREATE OR REPLACE

  ABC of the PROCEDURE

  IS

  v_print countries_t: = countries_t (countries_o('01','A',11));

  BEGIN

  DBMS_OUTPUT. Put_line (v_print (1).) COUNTRY_ID | v_print (1). COUNTRY_NAME | v_print (1). REGION_ID); -you're accessinf the first element of the nested table, which in turn points to the object.

  END;

  In the sections of the declaration you have assigned values to the nested table.

  Kind regards
  Maxou

• How to return data using the object type?

  Hello all - I have an obligation to return the values object type.

  In the same way as

  list - Plan1, Subplan1, Fund1, 2 Fund Fund 3

  list - Plan2, Subplan2, Fund2

  list - plane3, Subplan3, not funds

  
  

  To achieve this I wrote below proc but its giving as response below which is does not correspond with my requirement. Someone has an idea how to write code to get the list of funds against each plan in each line?

  
  

  
  

  Output:
  

  PDB01. () T_T_CONTRACT

  PDB01. T_O_CONTRACT ('p1', 's1', PDB01. T_O_FUND ('p1', 's1', 'f1')),

  PDB01. T_O_CONTRACT ('p1', 's1', PDB01. T_O_FUND ('p1', 's1', 'f2')),

  PDB01. T_O_CONTRACT ('p1', 's1', PDB01. T_O_FUND ('p1', 's1', 'f3')),

  PDB01. T_O_CONTRACT ('p2', 's2', PDB01. T_O_FUND ('p2', 's2', 'f2')),

  PDB01. T_O_CONTRACT ('p3', 's3', PDB01. T_O_FUND (NULL, NULL, NULL))

  )

  
  

  
  

  
  

  DROP TYPE T_T_fund;

  create or replace

  TYPE T_O_fund

  AS OBJECT)

  argument plan_id Varchar2 (128).

  subplan_id Varchar2 (128).

  fund_id Varchar2 (128)

  )

  No final;

  /

  create or replace

  type T_T_FUND

  as the table of T_O_FUND;

  /

  type of projection T_T_CONTRACT;

  create or replace

  TYPE T_O_contract

  AS OBJECT)

  argument plan_id Varchar2 (128).

  SUBPLAN_ID varchar2 (128).

  ov_fund T_o_fund

  )

  no final;

  /

  create or replace

  type T_t_contract as the T_O_contract table;

  /

  -------------------------

  / * Remove T_T_FUND;

  DROP TYPE T_O_fund;

  type of projection T_T_CONTRACT;

  DROP TYPE T_O_contract; * /

  ----------------

  create or replace

  procedure test_cursor (o_c1 OUT sys_refcursor) is

  V_T_T_FUND T_T_FUND;

  v_T_t_contract T_t_contract;

  Start

  WITH (CONTRACTS AS

  SELECT "p1" PLAN_ID, "s1" SUBPLAN_ID FROM DUAL UNION ALL

  SELECT "p2" PLAN_ID, 's2' SUBPLAN_ID FROM DUAL UNION ALL

  SELECT "p3" PLAN_ID, 's3' SUBPLAN_ID FROM DUAL

  ),

  Fund)

  Select "p1" PLAN_ID, SUBPLAN_ID 's1', 'f1' FUND_ID of all the DOUBLE union

  Select "p1" PLAN_ID, SUBPLAN_ID 's1', 'f2' FUND_ID of all the DOUBLE union

  Select plan_id "p1", "s1" subplan_id argument, "f3" fund_id Union double all the

  Select the argument plan_id 'p2', 's2' subplan_id, 'f2' double fund_id

  )

  Select T_O_contract (c.PLAN_ID, c.SUBPLAN_ID, T_o_FUND (f.PLAN_ID, f.SUBPLAN_ID, f.FUND_ID))

  TO COLLECT FEES IN BULK

  in v_T_t_contract

  c CONTRACTS, FUND F

  where C.PLAN_ID = F.PLAN_ID

  and c.SUBPLAN_ID = f.SUBPLAN_ID (+);

  Open the O_C1 for

  SELECT 't' TYP, v_T_t_contract contract_LST

  FROM DUAL;

  end;

  /

  impression o_test

  You can declare the attribute OV_FUND as T_T_FUND data type:

  create or replace type t_o_contract as object (
    plan_id     varchar2(128)
  , subplan_id  varchar2(128)
  , ov_fund     t_t_fund
  );
  /
  

  You will be able to do this:

  with contracts as (
    select 'p1' plan_id, 's1' subplan_id from dual union all
    select 'p2' plan_id, 's2' subplan_id from dual union all
    select 'p3' plan_id, 's3' subplan_id from dual
  ),
  funds as (
    select 'p1' plan_id , 's1' subplan_id, 'f1' fund_id from dual union all
    select 'p1' plan_id , 's1' subplan_id, 'f2' fund_id from dual union all
    select 'p1' plan_id , 's1' subplan_id, 'f3' fund_id from dual union all
    select 'p2' plan_id , 's2' subplan_id, 'f2' fund_id from dual
  )
  select t_o_contract(
           c.plan_id
         , c.subplan_id
         , cast(
             multiset(
               select t_o_fund(f.plan_id, f.subplan_id, f.fund_id)
               from funds f
               where f.plan_id = c.plan_id
               and f.subplan_id = c.subplan_id
             )
             as t_t_fund
           )
         )
  from contracts c ;
  

• Retrieve by using the TYPE attribute of the element type VArray

  I want to recover the varray stores through the type attribute type or no matter WHAT work-around.
  
  for example, our type is defined as SUCH CREATE "READS" AS VARRAY (200) OF NUMBER (21: 6); (reading is with elements of number type varray (21.6))
  
  READING is a column in a table of INTERVALS. INTERVALS is a central table and we batch on the INTERVALS that are running sql store procedures. In the stored procedure we have hardcoded the declarations of variables mapping to the element type of type VArray of READING which is NUMBER (21: 6); for example, the stored procedure has declarations of variables such as
  
  NUMBER OF CONSUMPTION (21: 6);
  
  each Varray definition is changed or varray is deleted and recreated with precision and of different size, ex on number (21.6) past to number (25.9), we need declarations of variables to change in our store to batch process procedures. I am looking for is CONSUMPTION variable declaration, refer to item VArray type. I want something like that
  
  INTERVALS OF CONSUMPTION. READINGS. COLUMN_TYPE % TYPE; (I want something like this, identify the type of the items stored by varray)

  No problem. Discussions forum flags viewers have read so you don't need to keep posting.

  In response to your question I don't know of a direct method, but it doesn't seem to be syntactically possible to anchor via a SLIDER instead diverted the road % TYPE and % ROWTYPE.

  Oracle Database 10g Enterprise Edition Release 10.2.0.4.0 - 64bit Production
  With the Partitioning, OLAP, Data Mining and Real Application Testing options
  
  SQL> CREATE OR REPLACE TYPE type_name
    2  AS
    3     VARRAY (200) OF VARCHAR2 (3);
    4  /
  
  Type created.
  
  SQL>
  SQL> DECLARE
    2     CURSOR cursor_name
    3     IS
    4        SELECT COLUMN_VALUE column_name
    5        FROM   TABLE (type_name ());
    6
    7     record_name cursor_name%ROWTYPE;
    8
    9     variable_name record_name.column_name%TYPE := 'AAAA';
   10  BEGIN
   11     NULL;
   12  END;
   13  /
  DECLARE
  *
  ERROR at line 1:
  ORA-06502: PL/SQL: numeric or value error: character string buffer too small
  ORA-06512: at line 9
  
  SQL>
  

  However, if you try this with a digital item type precision and scale are not kept and you will end up with a NUMBER.

  I said just a subtype corresponding to the same place, declaring variables, on this basis and do with it.

• Function returns the object type

  Hello
  This isn't a duplicate of another thread, I posted earlier with the procedure...
  Now I try the subprogramme with the service, as required by the client., so I opened the question in another thread
  

  CREATE OR REPLACE TYPE Type_Rt IS OBJECT
      (Rt_Type      VARCHAR2(2000),
       cdtRt       VARCHAR2(2000),
       lqdtRt    VARCHAR2(2000),
       Olk              VARCHAR2(2000),
       cdtwh       VARCHAR2(2000) )
   
  CREATE OR REPLACE TYPE Rt_Type_Var IS TABLE OF Type_Rt;
   
   
   
  CREATE OR REPLACE FUNCTION FUNC_RAT (
                              Cp_Id  VARCHAR2,
                                           St_Id    VARCHAR2,
                                           cdt_Rt   VARCHAR2,
                                           liq_Rt      VARCHAR2,
                                           Olk      VARCHAR2,
                                           cdt_Wh VARCHAR2)               
  RETRUN Rt_Type_Var IS
     v_typ_rat_List   Type_Rt ;
     var1_nri varchar2(100) := 'ST';
  BEGIN
     IF ( Cp_Id = 'NTE' AND St_Id = 'Y' ) THEN   
      --select distinct ne_rt_issue into var1_nri from rt_con where ltr_ener = cdt_rt;
           
       v_typ_rat_List := new Type_Rt ('STRT',var1_nri ,liq_Rt,'Stle' ,null);    
     END IF;      
       RETURN v_typ_rat_List;
  END;
  / 

  I get the following error:, I tried it but no luck on my side

  PLS-00382: expression is of wrong type

  After you create the function, I have to call this function as

  SELECT * FROM TABLE(FUNC_RAT ('NTE','Y','AB','C','Y',NULL))

  Could you please help me with this

  The same basic problem as in your previous thread. Confusion between creating an object from a collection/table of this object.

  Here's a basic example:

  SQL> create or replace type TScalar is object(
    2          id      integer,
    3          name    varchar2(10)
    4  );
    5  /
  
  Type created.
  
  SQL>
  SQL> create or replace type TArray is table of TScalar;
    2  /
  
  Type created.
  
  SQL>
  SQL> --// creating a scalar
  SQL> select TScalar( 1, 'John' ) as OBJ from dual;
  
  OBJ(ID, NAME)
  --------------------
  TSCALAR(1, 'John')
  
  SQL>
  SQL> --// creating an array/collection
  SQL> select
    2          TArray(
    3                  TScalar( 1, 'John' ),
    4                  TScalar( 2, 'Tom' )
    5          )                               as ARRAY
    6  from       dual;
  
  ARRAY(ID, NAME)
  --------------------------------------------------
  TARRAY(TSCALAR(1, 'John'), TSCALAR(2, 'Tom'))
  
  SQL> 
  

  So in your function, you will need to place objects in the collection.

  return(
      Rt_Type_Var(                      --// instantiate the collection
             Type_Rt ('STRT',var1_nri ,liq_Rt,'Stle' ,null)  --// place an object into the collection
      )
  );
  

  And use appropriate type names and the object. Poorly chosen and non standard naming conventions just add to the confusion.

• Where I'm going wrong with the object Type

  Hello world
  I am trying to insert data into a table using a type of object
  Here is my code
  Please help me where I'm wrong...
  Thank you
  
  Code for the object. Type

  create or replace type emp_rec_type as object 
  ( empno number
   ,name varchar2(20)
   ,salary number(7,2)
   ,job varchar2(10)
   ,hiredate date
   ,commno number(7,2)
   ,deptno number(4));
   

  Now I want to insert data into the table like this

  begin
    insert into emp5 values(emp_rec_type(5,'jack',1000,'salesman','12-apr-2000',300.00,20));
  end;

  I don't want to create a variable of the object... Initialization type I want to create just to insert the value using the default constructor.
  
  Concerning
  Prost

  You can create the table of the object:

  create table emp5 of emp_rec_type;
  

  Kind regards
  Sayan M.

• Create the object type with a member function that returns an array of the object type

  Hello

  Is possible to compile code like this in Oracle SQL?

  CREATE OR REPLACE TYPE type_obj IS OBJECT (
    MEMBER FUNCTION f RETURN table_obj
  );
  
  CREATE OR REPLACE TYPE table_obj AS TABLE OF type_obj;
  
  

  In Java, it would be possible.

  Thanks in advance

  Circular dependencies must be resolved by means of REF pointers and incomplete type definition.

  See: Oracle objects management

  CREATE or REPLACE TYPE type_obj;

  /

  CREATE or REPLACE TYPE table_obj AS TABLE OF ref type_obj;

  /

  CREATE or REPLACE TYPE type_obj () IS OBJECT

  fake number

  Table_obj RETURN of the FUNCTION MEMBER f

  );

  /

  Now, it must implement the body of type.

  Note that a table of the REFs is not very useful in the plain of PL/SQL, the underlying data must be stored in a nested table if you want to use.

• Test a SP with the object type

  Hi, I have a MS in which I created an object of TYPE and through multiple values as param.
  
  

  TYPE typ_clint_id_rec AS OBJECT
  ( CLIENT_ID VARCHAR2(20);
  
  TYPE typ_clinet_id_tab AS TABLE OF  typ_clint_id_rec;

  SP signature
  

  PROCEDURE test( in_username IN char
                            in_client_name IN   typ_clinet_id_tab,
                            in_out_cur IN OUT out_cursor)
  ;

  Now, I'm testing the PC like this:

  declare
  
  ref_cursor sys_refcursor;
  in_client_name typ_clinet_id_tab := typ_clinet_id_tab ();
  begin
  
  in_client_name := typ_clinet_id_tab ('AAA','BBB');
  test(in_username=> 'test' , in_client_name=>in_client_name ,in_out_cur => ref_cursor);
  end;

  But it gives wrong number or types of arguments in the call to typ_clinet_id_tab?
  
  Can someone tell me what is wrong with that?
  
  Aashish

  Each attribute of your object to table table must consist of the typ_clint_id_rec object.

  So the data must be wrapped as follows;

  typ_clinet_id_tab (typ_clint_id_rec'AAA'),typ_clint_id_rec('BBB'));
  

• Background image, change of color of the object/type

  I retouched an image that I then placed in CC Id as part of the background. Unfortunately, the type and the items that were on top of this image are corrupted. The text looks like it's more "BOLD" and transparent colored box of 50% is much darker where they overlap the picture. This problem appears if I make a PDF print. Anyone know what is happening here, and how I can solve it?  Thanks in advance!

  In InDesign, choose the [Black] swatch is automatically set to overprinting. It is defined in the preferences > appearance of black. Uncheck the option or create your own black shade to K100.

• Function returning the tree used with the object type

  Hi guys!
  
  I'm fighting for some time now of a function that should return the tree structure of the employees. Let me clarify...
  I have a table say Manager and employees (two columns for an example)
  MANAGER_ID
  EMPLOYEE_ID
  
  Example:
  
  MAN_ID - 1; EMPLOYE_ID - 2;
  MAN_ID - 2; EMPLOYE_ID - 3;
  MAN_ID - 2; EMPLOYE_ID - 4;
  MAN_ID - 4; EMPLOYE_ID - 5
  
  The purpose of my function is back for a specified MAN_ID everyone in the tree...
  
  Example:
  
  RETURN_TREE (1) return {2,3,4,5};
  RETURN_TREE (2) returns {3,4,5};
  RETURN_TREE (4) returns {5};
  
  How to get there?
  
  With respect,
  
  PsmakR

  And use BULK COLLECT or the COLLECT function to build the collection:

  create type emp_table as table of number(6);
  /
  

  DECLARE
   v_emp_list emp_table;
  BEGIN
   select cast(collect(employee_id) as emp_table)
   into v_emp_list
   from employees
   connect by prior employee_id = manager_id
   start with manager_id = :p_man_id
  
   -- or
   /*
   select employee_id
   bulk collect into v_emp_list
   from employees
   connect by prior employee_id = manager_id
   start with manager_id = :p_man_id
   */
  END;
  /
  

• Collection to contain the object type? OR typical hash in java?

  Hi people,
  I used to work in perl and use hashes a lot (a typical perl hash is String = > string). Well now, I am doing something a bit dirty - I need something that does what the class that I put in place down, it doesn't... Y at - it such an object which wouldn't bother me that the keys and values are not unique (can be same values with the keys and values). What I must apply myself, or is there something that does this...
  No collection seems to fit in this...
  
  
  public class CantFindYouInJava {}
  private String [] listOfKeys;
  private String [] listOfValues.
  ' Public Sub put (String key, String value) {}
  where int = listOfkeys.length + 1;
  listOfKeys [where] = key;
  listOfValues [where] = value;
  }
  ..
  }

  koszta5 wrote:
  I need an object that did what did the class that I've set up there... Y at - it such an object which wouldn't bother me that the keys and values are not unique (can be same values with the keys and values). What I must apply myself, or is there something that does this...

  It really depends on what the relationship between a key and its associated value, and the kind of performance you expect to recover from.

  Kayaman suggestion is probably the best if the relationship of key / value is 1-to-many; You can also write your own map> class. If it's really one-to-many, and you need good performance in both directions, you may need to wrap two MultiMaps - one go of the key values and a second to go in the other direction. Don't know what you'd call it however.

  Winston

• BEGINNING about the object type indexes per table

  Hi all
  
  I've been tyring just what follows.
  
  declare
  type ty_tab is table of the directory index ty_test;
  
  my_tab ty_tab;
  
  Start
  my_tab (1):=ty_test(1111,ty_info('ashok',1000));
  my_tab (2):=ty_test(2222,ty_info('Rashmi',2000));
  my_tab (3):=ty_test(3333,ty_info('unknown',3000));
  
  for me in my_tab.first... loop of my_tab. Last
  
  dbms_output.put_line (my_tab (i) .empno |) » '|| my_tab (i) .info);
  
  end loop;
  
  end;
  
  /
  
  When running the script, I get the following error.
  ORA-06550: line 13, column 25:
  PLS-00306: wrong number or types of arguments in the call to ' |'
  ORA-06550: line 13, column 4:
  PL/SQL: Statement ignored
  
  Can anyone suggest?
  
  
  Thanx

  the attributes of the type ty_info assuming that are name and val:

  dbms_output.put_line(my_tab(i).empno||' '||my_tab(i).info.name||' '||my_tab(i).info.val);
  

  SY.

  Published by: Solomon Yakobson, March 16, 2010 05:01

• execution of actions on a selection based on the object type

  Hello.

  I am trying to write an AppleScript that considers the current selection, then redefines the scaling of all lines of that selection to 100%, and then sets the absolute horizontal scale of the remaining elements of the selection to 100%.

  My attempts so far are:

  say application «Adobe InDesign CS3»

  put Original_Selection to selection

  put to each graphic line of Original_Selection Lines_Selection -this part is not working

  put transform reference point of window layout 1 to anchor Center

  Choose Lines_Selection

  redefine the scaling to the selection {1.0 , 1.0}

  Choose Original_Selection - but it must be ' Original_Selection less Lines_Selection ' somehow

  put horizontal scale absolute at 100

  end say

  None of this really works as I expect, but I can't find out the required syntaxes. Anyone know where I am going wrong?

  Thank you.

  Try this:

  say application «Adobe InDesign CS3»

  the value transform reference point of window layout 1 of anchorage Center

  redefine the scaling of (each point of selection which class is the line graph) to {1.0, 1.0}

  the horizontal scale absolute value of (each element of selection whose class is not graphic line) to 100

  end say

  --

  Shane Stanley [email protected]>

  AppleScript Pro, April 2010, Florida http://www.applescriptpro.com>

• Type of the object called several times Oracle constructor

  I have an object of type with a custom constructor. In SQL, when I reference attributes the constructor is called several times in Oracle 11.2.0.4.

  1. Why the constructor is called more than once?
  2. How can I stop it?

  My current job is about to reference attributes and use the / * + materialize * / tip.

  
  Problem installation

      create or replace type Foo as object
      (
        Bar1 NUMBER,
        Bar2 NUMBER,
        Bar3 NUMBER,
  
        CONSTRUCTOR FUNCTION Foo(p_Bar1 NUMBER, p_Bar2 NUMBER, p_Bar3 NUMBER)
          RETURN SELF AS RESULT
          DETERMINISTIC
      )
  /
      create or replace type body Foo is
  
        -- Member procedures and functions
        CONSTRUCTOR FUNCTION Foo(p_Bar1 NUMBER, p_Bar2 NUMBER, p_Bar3 NUMBER)
          RETURN SELF AS RESULT
          DETERMINISTIC
        AS
        BEGIN
          SELF.Bar1 := p_Bar1;
          SELF.Bar2 := p_Bar2;
          SELF.Bar3 := p_Bar3;
          dbms_output.put_line('Foo Constructor Called');
          RETURN;
        END;
  
      end;
  

  Problem

      -- Constructor is called 6 times! 
      -- Once for each column and once for each predicate in the where clause.
      SELECT x.f.bar1 AS bar1, x.f.bar2 AS bar2, x.f.bar3 AS bar3, f
      FROM (
        SELECT foo(p_Bar1 => 1, p_Bar2 => 2, p_Bar3 => 3) f
        FROM dual d
      ) x
      WHERE x.f.bar1 = x.f.bar1 AND x.f.bar2 = x.f.bar2
  

  Output

  Foo constructor called

  Foo constructor called

  Foo constructor called

  Foo constructor called

  Foo constructor called

  Foo constructor called

  Workaround

      -- Work Around
      -- Constructor is called 3 times
      -- Once for each column in the inline view. 
      -- Note, I removed column f (the object type) because it's not compatible with the materialize hint.
      WITH y AS (
        SELECT /*+ materialize */ x.f.bar1 AS bar1, x.f.bar2 AS bar2, x.f.bar3 AS bar3
        FROM (
          SELECT foo(p_Bar1 => 1, p_Bar2 => 2, p_Bar3 => 3) f
          FROM dual d
        ) x
      )
      SELECT y.bar1, y.bar2, y.bar3
      FROM y
      WHERE y.bar1 = y.bar1 AND y.bar2 = y.bar2
  

  Another solution is described in this thread... Access to the fields of an object custom type... which makes use of a type of collection combined with SCOREBOARD operator, like this...

  create or replace type FooTable as table of Foo;
  
  SELECT x.bar1 AS bar1, x.bar2 AS bar2, x.bar3 AS bar3, value(x) f
      FROM table(FooTable(
        foo(p_Bar1 => 1, p_Bar2 => 2, p_Bar3 => 3)
      )) x
      WHERE x.bar1 = x.bar1 AND x.bar2 = x.bar2
  ;
  
  BAR1 BAR2 BAR2 F
  1    2    3    (1, 2, 3)
  
  Foo Constructor Called
  

  Hope that helps...

  Gerard