Reg: WMSYS. WM_CONCAT or LISTAGG

Similar Questions

• Wm_concat or Listagg

  Hi all
  
  I need a suggestion that one we should use wm_concat or listagg.
  My db is 11g Standard Edition.
  
  Please Guide!

  Yes, that's wht which suggest to my blog...

  Alexander gelin
  http://nimishgarg.blogspot.com

• am getting error error when am with funcation wm_concat.

  Hi all
  am getting error error when am with funcation wm_concat.
  

  SQL> DECLARE
  2 ex VARCHAR2(200);
  3 BEGIN
  4 SELECT wm_concat(ename) INTO EX FROM EMP WHERE deptno=30;
  5 DBMS_OUTPUT.PUT_LINE(EX);
  6 END;
  7 
  8 .
  SQL> 
  SQL> /
  DECLARE
  *
  ERROR at line 1:
  ORA-06550: line 4, column 10:
  PL/SQL: ORA-00904: "WM_CONCAT": invalid identifier
  ORA-06550: line 4, column 3:
  PL/SQL: SQL Statement ignored

  Thanks to all in advance
  
  Published by: Maldini on 9 January 2012 22:02

  Cool wrote:
  Hello

  Please check the version of database you are using.

  wm_concat is available from 11 g Release 2.

  Incorrect answer.

  wm_concat is undocumented and should not be used.

  Even Tom Kyte tell you... Re: SEPARATE does not not with wmsys.wm_concat

  11 GR 2, there is a documented feature called LISTAGG...

  http://docs.Oracle.com/CD/E11882_01/server.112/e26088/functions089.htm

• Pls help to return the results in, separted.

  Hello

  To get the comma separated list I wrote below the user-defined function. Available in Oracle 10 g release2 any pre defined function.

  I tried wmsys.wm_Concat but invalid identifier. I tried SYS_CONNECT_BY_PATH but I could not able to get result. Please help on this

  If I run under function with input = 7 8.9 result gives.

  Currently I have writtenmy function like this

  FUNCTION get_file_child_meta_data (i_parent_metadata_id as a WHOLE) RETURN VARCHAR2

  AS

  v_text VARCHAR2 (50): = NULL;

  BEGIN

  FOR (IN) cur_rec

  SELECT element_metadata_id

  OF cw_elements_meta_lookup

  WHERE parent_metadata_id = i_parent_metadata_id ORDER BY element_metadata_id)

  LOOP

  v_text: = v_text | ',' || cur_rec.element_metadata_id;

  END LOOP;

  Ltrim (v_text, ',') RETURN;

  END get_file_child_meta_data;

  The only time where I couldn't use SYS_CONNECT_BY_PATH was inside trigger Forms 6i code, while the DB 10 g. You use directly in PL/SQL?

• GROUP_CONCAT

  Hi all
  
  What is the equivalent of 'GROUP_CONCAT' in mysql to oracle?
  
  as in group_concat (emp_name) select from emp where dept_no = '10';
  
  output is 1 row: JUSTIN, HEMANT, BILLY, AMAN, SBT, ASAHI, BLU, ED, FRANK, RP, APC, WHOELSE
  
  
  Thank you

  asahide wrote:
  11g R1, you can use the wmsys.wm_concat function.
  But this func func undocumented...

  Kind regards

  and

  Alexandre Gelin says:
  Here's a simple example
  http://nimishgarg.blogspot.in/2010/02/Oracle-new-string-aggregation.html

  the two recommendations for use wm_concat are stupid.

  As mentioned, it is undocumented. This means that the mode of operation is not completely know we as developers. It also means that Oracle can change its operation in the different versions of the database, or they can even choose to get rid of the service overall, then you're going to have a broken application and Oracle are not required to support any application code that uses an undocumented feature.

  There are many examples of aggregation of the chain in the FAQ: {message identifier: = 9360005}
  including a link to where Tom Kyte says you shouldn't use wm_concat (and therefore it should not yet be recommended as an option by anyone)...
  {message: id = 9965699}

  Samir, he is also considered as a poor forum tag (and is frowned upon by the RTO admin that tighten the rules), to just post responds that the link to your own blog. It is enough just to link to your blog in support of an answer you gave on the forums, but the answer just directing people to your blog is close to being a bad use of the forums, and I think that I already warned you about this before, so please refrain from doing.

• How do I get the data in order by date

  Hello
  
  I get the data as below, I need the data with null values
  
  Date col1 col2 col3 col4
  16 November 11 23
  November 17 11 12
  18 November 11 321
  19 November 11 23
  20 November 11 132
  2321 16 November 11
  17 November 11 112
  18 November 11 211
  19 November 11 132
  November 20, 11 12
  16 November 11 45
  17 November 11 465
  2123 18 November 11
  19 November 11 132
  20 November 11 65
  16 November 11 456
  17 November 11 546
  4656 November 18, 11
  19 November 11 566
  20 November 11 564
  
  need output like below
  
  Date col1 col2 col3 col4
  16 November 11 23 2321 45 456
  November 17 11 12 112 465 546
  18 November 11 321 211 2123 4656
  19 November 11 23 132 132 566
  20 November 11 132 12 65 564
  
  Thanks in advance,
  Vincent.

  Delighted ADIK wrote:
  Please post requests INSERT such as requested by another user of the forum. Also mention the version of Oracle.

  Please search for WM_CONCAT.

  http://www.Oracle-base.com/articles/Misc/StringAggregationTechniques.php

  Yes, search for WM_CONCAT, and then COMPLETELY IGNORE IT because it is not the right way to do things. It is undocumented and should not be used similarly recommended.

  Even Tom Kyte says that you should not use it...

  Re: SEPARATE does not not with wmsys.wm_concat

  WM_CONCAT is also an aggregation of chain function, and is not what the OP's request.

  Frank gave the good solution, as evidenced by...

  SQL> ed
  Wrote file afiedt.buf
  
    1  with t as (select to_date('16-Nov-11','DD-Mon-RR') as dt, 23 as col1, null as col2, null as col3, null as col4 from dual union
    2             select to_date('17-Nov-11','DD-Mon-RR'), 12, null, null, null from dual union all
    3             select to_date('18-Nov-11','DD-Mon-RR'), 321, null, null, null from dual union all
    4             select to_date('19-Nov-11','DD-Mon-RR'), 23, null, null, null from dual union all
    5             select to_date('20-Nov-11','DD-Mon-RR'), 132, null, null, null from dual union all
    6             select to_date('16-Nov-11','DD-Mon-RR'), null, 2321, null, null from dual union all
    7             select to_date('17-Nov-11','DD-Mon-RR'), null, 112, null, null from dual union all
    8             select to_date('18-Nov-11','DD-Mon-RR'), null, 211, null, null from dual union all
    9             select to_date('19-Nov-11','DD-Mon-RR'), null, 132, null, null from dual union all
   10             select to_date('20-Nov-11','DD-Mon-RR'), null, 12, null, null from dual union all
   11             select to_date('16-Nov-11','DD-Mon-RR'), null, null, 45, null from dual union all
   12             select to_date('17-Nov-11','DD-Mon-RR'), null, null, 465, null from dual union all
   13             select to_date('18-Nov-11','DD-Mon-RR'), null, null, 2123, null from dual union all
   14             select to_date('19-Nov-11','DD-Mon-RR'), null, null, 132, null from dual union all
   15             select to_date('20-Nov-11','DD-Mon-RR'), null, null, 65, null from dual union all
   16             select to_date('16-Nov-11','DD-Mon-RR'), null, null, null, 456 from dual union all
   17             select to_date('17-Nov-11','DD-Mon-RR'), null, null, null, 546 from dual union all
   18             select to_date('18-Nov-11','DD-Mon-RR'), null, null, null, 4656 from dual union all
   19             select to_date('19-Nov-11','DD-Mon-RR'), null, null, null, 566 from dual union all
   20             select to_date('20-Nov-11','DD-Mon-RR'), null, null, null, 564 from dual)
   21  --
   22  -- end of test data
   23  --
   24  select dt
   25        ,max(col1) as col1
   26        ,max(col2) as col2
   27        ,max(col3) as col3
   28        ,max(col4) as col4
   29  from t
   30  group by dt
   31* order by dt
  SQL> /
  
  DT                COL1       COL2       COL3       COL4
  ----------- ---------- ---------- ---------- ----------
  16-Nov-2011         23       2321         45        456
  17-Nov-2011         12        112        465        546
  18-Nov-2011        321        211       2123       4656
  19-Nov-2011         23        132        132        566
  20-Nov-2011        132         12         65        564
  
  SQL>
  

• Reg: WM_CONCAT

  Dear friends.
  
  I face this error
  ORA-06502: PL/SQL numeric or value error: character string buffer too small.
  ORA-06512: at the ' WMSYS '.»» WM_CONCAT_IMPL ".
  
  
  
  I keep files on my table and I want to display records in separate by commas.
  
  output 101,101,102,103 there are a thousand documents in the column.
  but when I used above function to concatenate its gave me error.
  
  Please help me or give me another Solution on it how do I record with comma.

  output 101,101,102,103 there are a thousand documents in the column.

  See this example:

  SQL> select deptno, rtrim (xmlagg (xmlforest (empno || ',' e)).extract ('//text()').getclobval (), ',') empnos
      from emp
  group by deptno
  /
      DEPTNO EMPNOS
  ---------- ----------------------------------------
          10 7782,7839,7934
          20 7369,7902,7876,7788,7566
          30 7499,7698,7654,7844,7900,7521           
  
  3 rows selected.
  

• How can'i use wm_concat in ODI 10

  Hello

  I would like to know how to use the wm_concat function in an ODI interface (I use 10 ODI)

  For example, I have the following source data

  A    B     C
  ---       --- -------
  20     5     SMITH
  30     3     ALLEN
  30     2     WARD
  20     4     JONES
  30     2     MARTIN
  30     3     BLAKE
  10     1     CLARK
  20     3     SCOTT
  10     3     KING
  30     5     TURNER
  20     2     ADAMS
  30     5     JAMES
  20     1     FORD
  10     5     MILLER
  

  and I want to insert the next data kes

  A     sum(B)     wm_concat(c)
  ---    --- ------------------------
  10     9        CLARK,KING,MILLER
  20     15      SMITH,FORD,ADAMS,SCOTT,JONES
  30     20      ALLEN,BLAKE,MARTIN,TURNER,JAMES,WARD
  

  by adding a function of sum () in the column mapping B.

  The following query generates the ODI

  SELECT A, SUM (B), WM_CONCAT (C)
  FROM <table>
  GROUP BY A, WM_CONCAT (C);
  

  This means that the ODI does not recognize WM_CONCAT as aggregate function.

  don't you think that it is possible to say ODI to do not function in the group by

  PS: I use an Oracle 11 g database 2 which recognizes the WM_CONCAT function.

  Thank you very much

  Hello

  WM_Concat is no longer valid, that it has been deprecated by oracle, a long time ago.

  Using the LISTAGG function instead... It should work in ODI...

  SELECT deptno, LISTAGG (ename, ',') INTRA GROUP (ORDER BY ename) as employees

  WCP

  GROUP BY deptno;

  DEPTNO EMPLOYEES

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

  10 CLARK, KING, MILLER

  ADAMS, FORD, JONES 20, SCOTT, SMITH

  ALLEN, JAMES, MARTIN, BLAKE, TURNER, WARD 30

  If this solves your problem... close the thread...

  Thank you

  ASP.

• without using the listagg function

  Hi Sir,

  Today my Bishop asked me to write a sql query to display comma separated values using listagg, sys_connect_by_path, wm_concat?

  I said, we can write with the cursor... without predefined oracle functions? is this correct? or a Counselor about it?

  Please help me

  Concerning

  AR

  SQL > create table SEPM (deptno number (2), ename varchar2 (2));

  Table created

  SQL > insert all
  2 in samp (deptno, ename) values (10, 'A')
  3 in the SEPM (deptno, ename) values (20, 'd')
  4 in the samp (deptno, ename) values (20, 'E')
  5 SELECT * FROM DUAL;

  3 lines inserted

  SQL > SELECT * FROM SAMP;

  DEPTNO ENAME
  ------ -----
  10A
  20 D
  20 E

  Need to display like this

  10A

  20 D, E

  http://www.sqlsnippets.com/en/topic-11787.html

• lines due to the wm_concat() in double request gorge yourself

  Here's the query I need to run
  
  SELECT the separate user interface. Index_name, UI. Owner, UI. Table_name, wm_concat (uic.column_name) on column_name (partition by order of position_colonne uic.index_name), the ui.index_type, the parameters
  Of
  all_IND_COLUMNS UI all_INDEXES JOIN UIC
  ON UIC. INDEX_NAME = UI. INDEX_NAME
  where
  SUBSTR (UI.index_name, 1, 3) not IN ("PK_", 'UQ_', ' DR$ ")
  and ui.index_name not like 'SYS_C00% '.
  and ui.index_name not like 'SYS_IOT_TOP_ %' and owner = 'USER1 '.
  control of the user interface. INDEX_NAME
  
  
  
  The problem is wm_concat() because the all_IND_COLUMNS table contains the entry duplicated for index (index1 of the table(column1,column2,column3) type)
  
  for this wm_concat returns the result as below:
  --------------------
  Column1
  Column1, Column2
  Column1, Column2, Column3
  
  But in * result I don't need it for a particular name of index (separate index)
  
  as an example, I have two indexes in schema:
  index1 on table1 (column1, column2, column3) and
  Index2 on table2 (column5)
  
  This result need
  Row1 - index1 Column1, Column2, Column3
  Index2 column 5 row2-
  
  
  my query returns
  index1 Column1 row1-
  row2 - index1 Column1, Column2
  row3 - index1 Column1, Column2, Column3
  row4 - column 5 index2

  Are you trying this?

  SELECT UI.INDEX_NAME,
    ui.owner ,
    UI.TABLE_NAME ,
    ui.index_type,
    parameters,
    listagg(column_name,',') within GROUP (
  ORDER BY column_position) column_name
  FROM all_INDEXES UI
  JOIN all_IND_COLUMNS UIC
  ON  ( UIC.INDEX_NAME                    = UI.INDEX_NAME
        and uic.index_owner = ui.owner)
  WHERE SUBSTR(ui.index_name,1,3) NOT IN ('PK_', 'UQ_','DR$')
  AND ui.index_name NOT LIKE 'SYS_C00%'
  AND ui.index_name NOT LIKE 'SYS_IOT_TOP_%'
  GROUP BY UI.INDEX_NAME,
    ui.owner ,
    UI.TABLE_NAME ,
    ui.index_type,
    parameters
  ORDER BY UI.INDEX_NAME;
  

• WM_CONCAT() not available

  Hello
  
  I tried the below in Oracle 10 g XE.
  In fact, my requirement is, I have a table named "table1" that has a column ID.
  The values are:

  1
  2
  3
  4

  I need the result form:

  1,2,3,4

  I tried the query below:

  select wm_concat(ID) from table1
  select listagg(ID,',') from table1

  Two permits ORA-00904.
  Please help me to achieve this goal.
  
  Thank you

  Try this-

  SELECT rtrim(xmlagg(xmlelement(e,column_name,',').extract('//text()')),',') aa
  from TABLE_NAME;
  

• ORA-06512: at "WMSYS. WM_CONCAT_IMPL', line 30

  Select No, wm_concat (cleared) in the clr of the association_1 group by the;
  
  That's what I get at the end;
  
  ERROR:
  ORA-06502: PL/SQL: digital or value error: character string buffer too small
  ORA-06512: at "WMSYS. WM_CONCAT_IMPL', line 30
  
  
  even if I use the 2nd method by creating type I still get the same error
  
  Select No, row_col (cleared) in the clr of the association_1 group by the;
  
  
  ORA-06502: PL/SQL: digital or value error: character string buffer too small
  ORA-06512: at "ALI. T_ROW_COL', line 22
  
  

  REATE OR REPLACE TYPE t_row_col AS OBJECT
  (
    g_string  VARCHAR2(32767),
  
    STATIC FUNCTION ODCIAggregateInitialize(sctx  IN OUT  t_row_col)
      RETURN NUMBER,
  
    MEMBER FUNCTION ODCIAggregateIterate(self   IN OUT  t_row_col,
                                         value  IN      VARCHAR2 )
       RETURN NUMBER,
  
    MEMBER FUNCTION ODCIAggregateTerminate(self         IN   t_row_col,
                                           returnValue  OUT  VARCHAR2,
                                           flags        IN   NUMBER)
      RETURN NUMBER,
  
    MEMBER FUNCTION ODCIAggregateMerge(self  IN OUT  t_row_col,
                                       ctx2  IN      t_row_col)
      RETURN NUMBER
  );
  /
  
  
  CREATE OR REPLACE TYPE BODY t_row_col IS
    STATIC FUNCTION ODCIAggregateInitialize(sctx  IN OUT  t_row_col)
      RETURN NUMBER IS
    BEGIN
      sctx := t_row_col(NULL);
      RETURN ODCIConst.Success;
    END;
  
    MEMBER FUNCTION ODCIAggregateIterate(self   IN OUT  t_row_col,
                                         value  IN      VARCHAR2 )
      RETURN NUMBER IS
    BEGIN
      SELF.g_string := self.g_string || '/' || value;
      RETURN ODCIConst.Success;
    END;
  
    MEMBER FUNCTION ODCIAggregateTerminate(self         IN   t_row_col,
                                           returnValue  OUT  VARCHAR2,
                                           flags        IN   NUMBER)
      RETURN NUMBER IS
    BEGIN
      returnValue := RTRIM(LTRIM(SELF.g_string, '/'), '/');
      RETURN ODCIConst.Success;
    END;
  
    MEMBER FUNCTION ODCIAggregateMerge(self  IN OUT  t_row_col,
                                       ctx2  IN      t_row_col)
      RETURN NUMBER IS
    BEGIN
      SELF.g_string := SELF.g_string || '/' || ctx2.g_string;
      RETURN ODCIConst.Success;
    END;
  END;
  /
  
  
  CREATE OR REPLACE FUNCTION row_col (p_input VARCHAR2)
  RETURN VARCHAR2
  PARALLEL_ENABLE AGGREGATE USING t_row_col;
  /
  ************************************************************************************

  How can I fix this erros

  It is because there is a limit to how big a varchar2 can result (4000 bytes), and you exceed.

  What you need is to use a version of the CLOB basis rather for example

  create or replace
    type clobagg_type as object(
                                text clob,
                                static function ODCIAggregateInitialize(
                                                                        sctx in out clobagg_type
                                                                       )
                                  return number,
                                member function ODCIAggregateIterate(
                                                                     self  in out clobagg_type,
                                                                     value in     clob
                                                                    )
                                  return number,
                                member function ODCIAggregateTerminate(
                                                                       self        in     clobagg_type,
                                                                       returnvalue    out clob,
                                                                       flags       in     number
                                                                      )
                                  return number,
                                member function ODCIAggregateMerge(
                                                                   self in out clobagg_type,
                                                                   ctx2 in     clobagg_type
                                                                  )
                                  return number
                               );
  /
  create or replace
    type body clobagg_type
      is
        static function ODCIAggregateInitialize(
                                                sctx in out clobagg_type
                                               )
          return number
          is
          begin
              sctx := clobagg_type(null) ;
              return ODCIConst.Success ;
        end;
        member function ODCIAggregateIterate(
                                             self  in out clobagg_type,
                                             value in     clob
                                            )
          return number
          is
          begin
              self.text := self.text || value ;
              return ODCIConst.Success;
        end;
        member function ODCIAggregateTerminate(
                                               self        in     clobagg_type,
                                               returnvalue    out clob,
                                               flags       in     number
                                              )
          return number
          is
          begin
              returnValue := self.text;
              return ODCIConst.Success;
          end;
        member function ODCIAggregateMerge(
                                           self in out clobagg_type ,
                                           ctx2 in     clobagg_type
                                          )
          return number
          is
          begin
              self.text := self.text || ctx2.text;
              return ODCIConst.Success;
          end;
  end;
  /
  create or replace
    function clobagg(
                     input clob
                    )
      return clob
      deterministic
      parallel_enable
      aggregate using clobagg_type;
  / 
  
  SQL> select trim(',' from clobagg(ename||',')) as enames from emp;
  
  ENAMES
  -----------------------------------------------------------------------------------
  SMITH,ALLEN,WARD,JONES,MARTIN,BLAKE,CLARK,SCOTT,KING,TURNER,ADAMS,JAMES,FORD,MILLER
  
  SQL>
  

• Order WM_CONCAT

  Hello
  
  Is it possible to put the values in the WM_CONCAT function:
  
  Statement:
  wm_concat (rental_next_date) rental_date,
  
  Output:
  25-FEB-11,25-OCT-12,25-APR-12,25-DEC-11,25-APR-11
  
  The above dates is controllable by Crescent?
  
  Thank you

  sliderrules wrote:
  Thank you all for your comments. The listagg has no effect on the order of dates.

  That's because you ordered solely on the id. If you want to order on the dates, you will have to ask him.

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