error with function returning values 'multiple '.

Hello

I am trying to write a function to return values "multiple".

However, he returned the following error when compiling

Errors of compilation for the sch1.myfn FUNCTION

Error: PLS-00382: expression is of the wrong type
Online: 19
Text: RETURN V_res;

Error: PL/SQL: statement ignored
Online: 19
Text: RETURN V_res;


question:

is 1 - necessary to always declare an array? as he's going to return only a single record with multiple columns





Create or REPLACE the TYPE as result_t table;

CREATE or REPLACE TYPE result_t as object
(comments of the user varchar2 (100), varchar2 (4000));



FUNCTION to CREATE or REPLACE myfn (IN_ID IN VARCHAR2, IN_BEGIN IN DATE) result IS
type V_res_t is RECORD (user varchar2 (100) comments varchar2 (4000));
V_res V_res_t;
BEGIN
Select a.user, a.comment
in V_res.user, V_res.comments
from View1,.
(select distinct id,
begin_time,
Max (Time) on max_time (order by times desc) of view2 b
where id = IN_LOTID
and begin_time = IN_BEGIN) b
where a.id = b.id
and a.begin_time = b.begin_time
and a.time = max_time
and a.id = IN_ID
and a.begin_time = IN_BEGIN;

RETURN V_res; -> This is the line that the system keep complaining
END;

Note: ignore pls if the results returned is correct, but I expect to always return one row

pls advise

TKS & rgds

Forget your 'result' of tabular type of.

SQL> CREATE OR REPLACE TYPE result_t as object
  2  (user# varchar2(100), comments varchar2(4000));
  3  /

Type created.

SQL>
SQL> CREATE OR REPLACE FUNCTION myfn (IN_ID IN VARCHAR2, IN_BEGIN IN DATE) RETURN result_t IS
  2  user# varchar2(100);
  3  comments varchar2(4000);
  4  BEGIN
  5  RETURN result_t(user#,comments);
  6  END;
  7  /

Function created.

SQL>

Nicolas.

Tags: Database

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    XYZ < teacher > < / teacher >
    < / student >
    < / students >


    is it possible to display data in the format using a query oracle below.
    ---------------------------------------------------------------------------------------------------
    teacher id school_name
    --------------------- ------- ------------
    abc_school 101 abc
    abc_school 102 xyz
    abc_school 102 onp
    RSM abc_school 102


    I used the slot request, throwing an error - too many return values for a single node

    SELECT school_name, teacher
    ExtractValue (value (x), ' / / key ') like student_id
    extractValue (value (x), ' / / value ') AS teacher
    SCHOOL t,.
    TABLE)
    XMLSequence (extract (obj_xml, ' / students/pupils '))
    ) x

    Please post How can I modify this query, the teacher tags may vary for each student

    Published by: user7955917 on May 8, 2012 04:00

    As mentioned in your other thread today, it would be helpful if you could post your exact version of db.
    Samples of work would be appreciated too, the XML data, you gave are not correct.

    I would do it with two XMLTables, like this:

    SQL> SELECT school_name
  2       , x1.id
  3       , x2.teacher
  4  FROM school t
  5     , XMLTable('/students/student'
  6         passing t.obj_xml
  7         columns id       number   path 'id'
  8               , teachers xmltype  path 'teacher'
  9       ) x1
 10     , XMLTable('/teacher'
 11         passing x1.teachers
 12         columns teacher  varchar2(30) path '.'
 13       ) x2
 14  ;

SCHOOL_NAME                            ID TEACHER
------------------------------ ---------- ------------------------------
abc_school                            101 abc
abc_school                            102 xyz
abc_school                            102 onp
abc_school                            102 rsm
def_school                            301 pqr
def_school                            302 xyz

6 rows selected

  • Function returned no value error

    create or replace function dssppv.hra_find_short_path (
   p_new_rgmn_grp_gid    in   number
  ,p_tail_rgmn_grp_gid   in   number
  ,p_mkt_cnfgr_gid       in   number
)
   return string

is
   v_rgmn_grp_path varchar2 ( 2000 );
   check_step varchar2 ( 2000 );
begin
   dbms_output.put_line
      ( 'Begin of function  hra_find_short_path to Check Circular Loop : '
        || to_char ( sysdate, 'YYYY-MM-DD HH24:MI:SS' )
      );
   check_step                 := ' Step 1 - Circular loop Check up.';

   --Checking for the circular loop
   select rgmn_path || '/' || gt.rgmn_grp_nam
   into   v_rgmn_grp_path
   from   ( select  min_rgmn_node
                   ,rgmn_path
                   ,rgmn_grp_gid
           from     ( select    level as min_rgmn_node
                               ,dt.rgmn_grp_gid
                               ,dt.tail_rgmn_grp_gid
                               ,gp.rgmn_grp_nam
                               ,rtrim
                                   ( reverse
                                        ( sys_connect_by_path
                                                  ( reverse ( gp.rgmn_grp_nam )
                                                   ,'/ '
                                                  )
                                        )
                                    ,'/ '
                                   ) as rgmn_path
                     from       dssppv.t_market_cnfgr_rgmn_grp_dtl dt join dssppv.t_market_cnfgr_rgmn_grp gp
                                on (     dt.rgmn_grp_gid = gp.rgmn_grp_gid
                                     and gp.mkt_cnfgr_gid = p_mkt_cnfgr_gid
                                   )
                     start with dt.tail_rgmn_grp_gid = p_new_rgmn_grp_gid
                     connect by nocycle prior dt.rgmn_grp_gid =
                                                          dt.tail_rgmn_grp_gid )
           where    rgmn_grp_gid = p_tail_rgmn_grp_gid
           order by min_rgmn_node )
         ,dssppv.t_market_cnfgr_rgmn_grp gt
   where  gt.rgmn_grp_gid = p_new_rgmn_grp_gid and rownum = 1;

   dbms_output.put_line ( ' Circular Loop is formed as shown :'
                          || v_rgmn_grp_path
                        );

   if ( v_rgmn_grp_path is not null )
   then
      dbms_output.put_line ( ' Circular Loop is formed as shown :'
                             || v_rgmn_grp_path
                           );
   else
      dbms_output.put_line ( ' No Loop is formed.' );
   end if;

   dbms_output.put_line
         ( 'End of function  hra_find_short_path to Check Circular Loop : '
           || to_char ( sysdate, 'YYYY-MM-DD HH24:MI:SS' )
         );
   return v_rgmn_grp_path;
exception
 --  when no_data_found
  -- then
   --   dbms_output.put_line
    --     ( 'End  of function  hra_find_short_path to Check Circular Loop : '
     --      || to_char ( sysdate, 'YYYY-MM-DD HH24:MI:SS' )
      --   );
      --return null;
   when others
   then
      dbms_output.put_line
                     ( 'Error in function DSSPPV.hra_find_short_path at: '
                       || check_step
                     );
      dbms_output.put_line ( sqlerrm );
      dbms_output.put_line
         ( 'End of function  hra_find_rgmn_grp_loops to Check Circular Loop : '
           || to_char ( sysdate, 'YYYY-MM-DD HH24:MI:SS' )
         );
end hra_find_short_path;
/
    I have fully commented goal no. Data Exception not found top check if she is to return null when no record is found.

    But he was wrong in not found exception when there is no data record.

    But when run sql separately he showed zero records without don't raise the no found error of data.

    He would not even through the loop fi... Please correct me if I did something wrong
     if ( v_rgmn_grp_path is not null )
   then
      dbms_output.put_line ( ' Circular Loop is formed as shown :'
                             || v_rgmn_grp_path
                           );
   else
      dbms_output.put_line ( ' No Loop is formed.' );
   end if;

    You may not assume that v_rgmn_grp_path will retain the NULL value if the query returns no rows. In this case AS the value of the variable is not defined. I suggest yo change:

    Select rgmn_path. '/' || gt.rgmn_grp_nam

    TO

    Select count (*) case when 1 then max(rgmn_path ||) '/' || end of gt.rgmn_grp_nam)

    This way NO_DATA_FOUND will not be raised and the v_rgmn_grp_path will be NULL if there is no corresponding line.

    SY.

  • Calling a function multiple return values...

    Hello

    I wrote a simple function 2 return values. It comes to my own understanding.

    create or replace function func1 (empid number)

    Return number

    is

    number of SAL;

    number of deptID;

    Start

    Select the wage in sal of employees where employee_id = empid;

    Select department_id from deptid from employees where employee_id = empid;

    return of sal;

    deptid return;

    end;

    I tried to call the function like below: -.

    declare

    number of performance(1);

    Result2 number;

    Start

    performance(1): = func1 (101);

    Result2: = func2 (101);

    dbms_output.put_line(result ||) '' || Result2);

    end;

    output:-1700 1700

    the salary was posted twice.

    I understand that the second query has not been taken into account.

    Please let me know how this can be achieved.

    Thanks and greetings

    Here is an example of functions Oracle return multiple values - dBforums:

    CREATE or REPLACE TYPE pmc_tab AS TABLE OF NUMBER;

    CREATE TABLE v_stats_daily (start_date date, number of Field1, Field2 number, field3 number);

    INSERT INTO v_stats_daily VALUES('08-OCT-2003',10,20,30);

    INSERT INTO v_stats_daily VALUES('08-OCT-2003',40,50,60);

    INSERT INTO v_stats_daily VALUES('08-OCT-2003',70,80,90);

    CREATE OR REPLACE FUNCTION PMC_STATS

    (pStatDate Date) IS BACK pmc_tab

    MyArray pmc_tab;

    NUMBER of vstat1;

    NUMBER of vstat2;

    NUMBER of vstat3;

    BEGIN

    MyArray: = pmc_tab();

    SELECT sum (Field1), sum (field2), sum (field3)

    IN vstat1, vstat2, vstat3

    OF v_stats_daily

    WHERE the arguments start_date = pStatDate;

    MyArray.EXTEND;

    MyArray (1): = vstat1;

    MyArray.EXTEND;

    MyArray (2): = vstat2;

    MyArray.EXTEND;

    MyArray (3): = vstat3;

    RETURN MyArray;

    END;

    /

    Set serveroutput ON

    DECLARE

    MyDate DATE;

    MyArray pmc_tab;

    I have SEVERAL;

    numOut NUMBER;

    BEGIN

    MyArray: = pmc_stats('08-OCT-2003');

    dbms_output.put_line (' number of Table: ' | to_char (myArray.Count));

    FOR i IN 1.MyArray.last LOOP

    numOut: = MyArray (i);

    -If numOut is null then

    dbms_output.put_line (' value: ' | to_char (numOut));

    -end if;

    END LOOP;

    END;

    /

    /

    Table number: 3

    Value: 120

    Value: 150

    Value: 180

    PL/SQL procedure successfully completed.

    /

    Post edited by: Elya

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