Function body of pl/sql returning the SQL query

Similar Questions

• Any difference between the separate function and aggregation in sql query cost?

  Hello
  I've run many models sql stmts - such as:
  one) using a single table
  (b) using the two tables, using simple joins or outer joins
  
  but I didn't notice a difference in sql stmts in cost and implementation plan...
  In any case, my colleague insists on only using the aggregate function is less expensive compared to
  separate... (something I've not confirmed, that is why I believe that they are exactly the same...)
  
  For the situation described above under 1 sql... We could for example use
  

  select distinct deptno
  
   from emp

  select count(*), deptno
  
   from emp
  
   group by deptno

  select distinct owner, object_type from all_objects

  select count(*), owner, object_type from all_objects
  
  group by owner, object_type

  Have you ever found no difference between the two...?
  
  Note: I use Ora DB 10g v2.
  
  Thank you
  SIM

  Alexandre Gelin says:
  function separate and aggregation are for different uses and can give the same result, but if you use the aggregate function to get the separate records, it will be expensive...

  really? I find them almost identical to 11g. Actually GROUP BY is almost always more fast for me in the old days.

  article about this askTom Re: any difference between the separate function and aggregation in sql query cost?
  This applies mainly to the older oracle versions http://www.oracle.com/technology/products/rdb/pdf/distinct_derivedtables_groupby_sort_tech_article.pdf

• JavaScript Command Window.getComputedStyle (document.body, ': after') .getPropertyValue ('content') returns the content with quotes

  When I use in my css:
  body: after {}
  content: "mobile";
  display: none;
  }
  And by controlling javascript with the command:
  size var = window.getComputedStyle (document.body, ': after') .getPropertyValue ('content');

  I get in firefox (mac v 23.0.1) returns the '' mobile' ' string with double quotes as return and, therefore, checking if size == 'mobile' returns false. In safari, the value returned 'mobile' without the quotes. How is it?

  What you get is a string that represents what you specified in the content.

  A content specification can include other things like a counter: body: after {content: "subjects []" counter (topics) "]" ;}}

  • https://developer.Mozilla.org/en-us/docs/Web/CSS/content

  size = window.getComputedStyle(document.body,_':after').content would give: 'subjects []' counter (topics) "].
  
  If you need test the exact text of the contents: size == ' 'mobile "";

• How to run the function body that is stored in the variable string?

  Hello!

  Let's say we have a function body stored in the string variable, like this:

  ......

  ......

  var body: String = "public function display_message(kom:String):void {mx.controls.Alert.show (kom) ;};

  .....

  Here, I would like to do something with variable 'body' to run the code in this variable, is - it possible?

  ......

  ......

  With regard to the bars.

  d.Eval can do what you want. check it out at http://www.riaone.com/products/deval/index.html

• [need help] Function body of PL/SQL returning the SQL with BI publisher

  Hello
  
  I'm new to BI publisher, back then I used ocj4 for pdf printing, but then we got BI publisher. We want to have a better relationship, since we always used the standard one.
  
  My pl/sql like this look

  DECLARE
    q varchar2(4000);
    list_betreuer htmldb_application_global.vc_arr2;
    list_semester htmldb_application_global.vc_arr2;
    list_status htmldb_application_global.vc_arr2;
  
  BEGIN
  
   -- variable to store the list
   list_betreuer := HTMLDB_UTIL.STRING_TO_TABLE(:P61_BETREUER);
   list_semester := HTMLDB_UTIL.STRING_TO_TABLE(:P61_SEMESTER);
   list_status := HTMLDB_UTIL.STRING_TO_TABLE(:P61_STATUS);
  
   -- Query begins
   q:= 'select p1.name, p1.vorname , a1.tel, a2.tel, '; 
   q:= q||'ab.thema, ab.status, ab.typ, s.bezeichnung, p2.name ';
   
   q:= q||'from person p1, person p2, adresse a1, adresse a2, ';
   q:= q||'zuordnungp_a zpa1,zuordnungp_a zpa2, ';
   q:= q||'abschlussarbeit ab, semester s ';
  
   q:= q||'WHERE ab.SEMESTER = s.OBJECTID (+) ';
   q:= q||'AND ab.STUDENT = p1.OBJECTID (+) ';
   q:= q||'AND ab.BETREUER = p2.OBJECTID (+) ';
  
   q:= q||'and p1.objectid = zpa1.person (+) ';
   q:= q||'and zpa1.adresse  = a1.objectid (+) ';
   q:= q||'and zpa1.art (+)= ''Privat'' ';
  
   q:= q||'and p1.objectid = zpa2.person (+) ';
   q:= q||'and zpa2.adresse  = a2.objectid (+) ';
   q:= q||'and zpa2.art (+)= ''Geschäft'' ';
  
  
   -- Loop for betreuer list
   FOR i in 1..list_betreuer.count
   LOOP
      IF i = 1 THEN
      q:= q||'AND (ab.betreuer = '||list_betreuer(i);
      ELSE
      q:= q||' OR ab.betreuer  = '||list_betreuer(i);
      END IF;
   END LOOP; if (list_betreuer.count>0)THEN q:= q||')'; END IF;
  
    -- Loop for semester list
   FOR i in 1..list_semester.count
   LOOP
      IF i = 1 THEN
      q:= q||'AND (ab.semester = '||list_semester(i);
      ELSE
      q:= q||'OR ab.semester = '||list_semester(i);
      END IF;
   END LOOP; if (list_semester.count>0)THEN q:= q||')'; END IF;
   
   -- Loop for status list
   FOR i in 1..list_status.count
   LOOP
      IF i = 1 THEN
      q:= q||'AND (ab.status = '''||list_status(i)||'''';
      ELSE
      q:= q||'OR ab.status = '''||list_status(i)||'''';
      END IF;
   END LOOP; if (list_status.count>0)THEN q:= q||')'; END IF;
   
   -- htp.p(q);
   return q;
   
  END;

  the question is how can I generate a pdf with this query using BI publisher report, what should I do?
  
  
  
  Thanks in advance
  
  
  Danny

  Check this out to see if this helps you. This article talks about passing parameters to the BI publisher of Apex report.

  http://tylermuth.WordPress.com/2008/03/31/call-bi-Publisher-Web-services-from-apex/

  Thank you!

• function in pipeline does not return the first values of immediately?

  I'm new to features in the pipeline. I want to get the first results of this function in the pipeline as soon as possible. But in my test case, I get all the lines at the end, when the function ends.
  
  create or replace
  dummy function
  return DBMS_DEBUG_VC2COLL
  PIPELINED - NOTE the keyword in pipeline
  is
  Start
  line of conduct (to_char (sysdate, ' DD-MON-YYYY HH24:MI:SS'));))
  DBMS_LOCK. Sleep (90);
  line of conduct (to_char (sysdate, ' DD-MON-YYYY HH24:MI:SS'));))
  return;
  end;
  +/+
  
  I expect
  + January 20, 2009 08:32:51 + immediately
  a 90-second delay
  + 08:34:21 + 20 January 2009 thereafter.
  
  But I have two lines after 90 sec.
  
  Can I change the behavior of this function somehow, or is this the only default behavior and I have to find other solutions?
  
  Thanks in advance
  Martin

  A parameter in your SQL * Plus has an influence on behavior, specifically the ArraySize.

  by your function (pipe_nums), run this:

  select * from table(pipe_nums);
  
  set arrays 5
  
  select * from table(pipe_nums);
  

  and notice the difference

• Clear the cache or return the Web query

  I have a situation where the user selects a combobox control, based on what they choose, it sends and receives data through a web service and fills another drop-down list box.  There is also a clear button that clears all selections of previous drop-down list, the list box washing box drop-down fist with the original list of choices.  If the user will choose the same selection on the first drop-down list box, as above, it does not send it through the service web like system (flex) already think he did.  Is there a way to clear the cache or force the web service to return?

  These links may help:

  http://blog.atrexis.com/index.cfm/2008/9/30/browser-cache-when-Flex-working-with-PHP

  http://StackOverflow.com/questions/300757/preventing-Flex-application-caching-in-browser-m ultiple-modules

• SQL query + html

  Hello

  I have a test_table (col1, col2, col3) on apex.oracle.com.

  First of all:

  I would like to create report as the type of SQL query:

  Select col1, col2, col3 from test_table;

  I want to change the properties of the col2 for example the font or color during the generation.

  I have to write in the report source code (this is only an example?):

  Select col1,

  "< span style =" ' make-weight: bold; ' > ' col2 "</span >", "

  COL3

  from test_table;

  I think it's wrong, but I would like to know what are the first principles of the connection between sql and html.

  Second:

  I create the report in the body of type SQL query return PLSQL function:

  Start

  return "select col1.

  || "< span style =" ' make-weight: bold; ">" | 'col2' | ' </span >', "

  ||' COL3

  from test_table;';

  end;

  What is the problem in the two examples? I can't find it in the documentation. Could you tell me something about the principles.

  Concerning

  Ziut

  Hello

  One way is to query as

  select col1,
  col2,
  col3,
  case when col1 = 'XXX' then
   'bold'
  else
   'normal'
  end as fontweight
  from test_table;
  

  Column of FONTWEIGHT set as hidden.

  Then place the COL2 HTML expression

  #COL2#
  

  Kind regards

  Jari

• How to call a function whose name is stored in the table?

  Dear members,
  
  I have a function with return number and store its name in a table.
  
  now, I want to choose the name of this table function and run it and return the value of a variable in my form.
  
  Here is my code in when pressed to release button.
  

  DECLARE
       v_value number;
       V_FUNC VARCHAR2(100);
       V_PARAM VARCHAR2(100);
  begin
       select FUNCTION_NAME, PARAM 
       INTO V_FUNC, V_PARAM
       from function_table
       where id =1;
        
       message('V_FUNC='||V_FUNC); pause;
       v_value := v_func||';'; --run_tb_function;
       :text01 := v_value;
  end;

  This code gives the following error:
  
  ORA-06502
  
  
  with regard to:
  
  Published by: user2040934 on February 2, 2013 09:47

  You can use EXECUTE IMMEDIATE to call pl/sql dynamic. But you need to wrap it in a db procedure.

  BTW... What is the reason of this dynamic approach, as it is very unusual?

• Get the dynamic query alias name

  Hi all
  
  I have a plsql function using a dynamic query.
  And the function takes an entire sql query as a parameter.
  
  The main problem is that the function must get what aliases or columns were interviewed.
  
  For example,.
  FUNCTION_GET_QUERY_ALIAS ('SELECT 1 AS col1, col2 FROM DUAL 2 AS')
  Inside the function, he must find the alias name COL1 and COL2.
  
  I would be grateful for any help.

  I modified print_table as fact and function to meet your needs.

  SQL> CREATE OR REPLACE TYPE my_column_object AS OBJECT(ruw_number integer, column_name VARCHAR2(1000), column_val VARCHAR2(1000))
    2  /
  
  Type created.
  
  SQL> CREATE OR REPLACE TYPE my_table_type AS TABLE OF my_column_object
    2  /
  
  Type created.
  
  SQL> CREATE OR REPLACE FUNCTION print_table( p_query in varchar2 ) RETURN my_table_type PIPELINED
    2  AS
    3      l_theCursor     INTEGER DEFAULT DBMS_SQL.OPEN_CURSOR;
    4      l_columnValue   VARCHAR2(4000);
    5      l_status        INTEGER;
    6      l_descTbl       DBMS_SQL.DESC_TAB;
    7      l_colCnt        NUMBER;
    8      l_rcount           INTEGER := 0;
    9  BEGIN
   10      DBMS_SQL.PARSE(  l_theCursor,  p_query, dbms_sql.native );
   11
   12      DBMS_SQL.DESCRIBE_COLUMNS( l_theCursor, l_colCnt, l_descTbl );
   13
   14      FOR i IN 1 .. l_colCnt
   15      LOOP
   16          DBMS_SQL.DEFINE_COLUMN(l_theCursor, i, l_columnValue, 4000);
   17      end loop;
   18
   19      l_status := DBMS_SQL.EXECUTE(l_theCursor);
   20
   21      WHILE ( DBMS_SQL.FETCH_ROWS(l_theCursor) > 0 )
   22      LOOP
   23             l_rcount := l_rcount + 1;
   24          FOR i IN 1 .. l_colCnt
   25          LOOP
   26              DBMS_SQL.COLUMN_VALUE( l_theCursor, i, l_columnValue );
   27
   28              PIPE ROW(my_column_object(l_rcount,l_descTbl(i).col_name,l_columnValue));
   29          END LOOP;
   30      END LOOP;
   31
   32     RETURN;
   33  end;
   34  /
  
  Function created.
  
  SQL> select * from table(print_table('select * from emp'))
    2  /
  
  RUW_NUMBER COLUMN_NAME          COLUMN_VAL
  ---------- -------------------- --------------------
           1 EMPNO                7369
           1 ENAME                SMITH
           1 JOB                  CLERK
           1 MGR                  7902
           1 HIREDATE             17-DEC-80
           1 SAL                  800
           1 COMM
           1 DEPTNO               20
           1 DIV                  10
           2 EMPNO                7499
           2 ENAME                ALLEN
  
  RUW_NUMBER COLUMN_NAME          COLUMN_VAL
  ---------- -------------------- --------------------
           2 JOB                  SALESMAN
           2 MGR                  7698
           2 HIREDATE             20-FEB-81
           2 SAL                  1600
           2 COMM                 300
           2 DEPTNO               30
           2 DIV                  10
           3 EMPNO                7521
           3 ENAME                WARD
           3 JOB                  SALESMAN
           3 MGR                  7698
  
  RUW_NUMBER COLUMN_NAME          COLUMN_VAL
  ---------- -------------------- --------------------
           3 HIREDATE             22-FEB-81
           3 SAL                  1250
           3 COMM                 500
           3 DEPTNO               30
           3 DIV                  10
           4 EMPNO                7566
           4 ENAME                JONES
           4 JOB                  MANAGER
           4 MGR                  7839
           4 HIREDATE             02-APR-81
           4 SAL                  2975
  
  RUW_NUMBER COLUMN_NAME          COLUMN_VAL
  ---------- -------------------- --------------------
           4 COMM
           4 DEPTNO               20
           4 DIV                  10
           5 EMPNO                7654
           5 ENAME                MARTIN
           5 JOB                  SALESMAN
           5 MGR                  7698
           5 HIREDATE             28-SEP-81
           5 SAL                  1250
           5 COMM                 1400
           5 DEPTNO               30
  
  RUW_NUMBER COLUMN_NAME          COLUMN_VAL
  ---------- -------------------- --------------------
           5 DIV                  10
           6 EMPNO                7698
           6 ENAME                BLAKE
           6 JOB                  MANAGER
           6 MGR                  7839
           6 HIREDATE             01-MAY-81
           6 SAL                  2850
           6 COMM
           6 DEPTNO               30
           6 DIV                  10
           7 EMPNO                7782
  
  RUW_NUMBER COLUMN_NAME          COLUMN_VAL
  ---------- -------------------- --------------------
           7 ENAME                CLARK
           7 JOB                  MANAGER
           7 MGR                  7839
           7 HIREDATE             09-JUN-81
           7 SAL                  2450
           7 COMM
           7 DEPTNO               10
           7 DIV                  10
           8 EMPNO                7788
           8 ENAME                SCOTT
           8 JOB                  ANALYST
  
  RUW_NUMBER COLUMN_NAME          COLUMN_VAL
  ---------- -------------------- --------------------
           8 MGR                  7566
           8 HIREDATE             19-APR-87
           8 SAL                  3000
           8 COMM
           8 DEPTNO               20
           8 DIV                  10
           9 EMPNO                7839
           9 ENAME                KING
           9 JOB                  PRESIDENT
           9 MGR
           9 HIREDATE             17-NOV-81
  
  RUW_NUMBER COLUMN_NAME          COLUMN_VAL
  ---------- -------------------- --------------------
           9 SAL                  5000
           9 COMM
           9 DEPTNO               10
           9 DIV                  10
          10 EMPNO                7844
          10 ENAME                TURNER
          10 JOB                  SALESMAN
          10 MGR                  7698
          10 HIREDATE             08-SEP-81
          10 SAL                  1500
          10 COMM                 0
  
  RUW_NUMBER COLUMN_NAME          COLUMN_VAL
  ---------- -------------------- --------------------
          10 DEPTNO               30
          10 DIV                  10
          11 EMPNO                7876
          11 ENAME                ADAMS
          11 JOB                  CLERK
          11 MGR                  7788
          11 HIREDATE             23-MAY-87
          11 SAL                  1100
          11 COMM
          11 DEPTNO               20
          11 DIV                  10
  
  RUW_NUMBER COLUMN_NAME          COLUMN_VAL
  ---------- -------------------- --------------------
          12 EMPNO                7900
          12 ENAME                JAMES
          12 JOB                  CLERK
          12 MGR                  7698
          12 HIREDATE             03-DEC-81
          12 SAL                  950
          12 COMM
          12 DEPTNO               30
          12 DIV                  10
          13 EMPNO                7902
          13 ENAME                FORD
  
  RUW_NUMBER COLUMN_NAME          COLUMN_VAL
  ---------- -------------------- --------------------
          13 JOB                  ANALYST
          13 MGR                  7566
          13 HIREDATE             03-DEC-81
          13 SAL                  3000
          13 COMM
          13 DEPTNO               20
          13 DIV                  10
          14 EMPNO                7934
          14 ENAME                MILLER
          14 JOB                  CLERK
          14 MGR                  7782
  
  RUW_NUMBER COLUMN_NAME          COLUMN_VAL
  ---------- -------------------- --------------------
          14 HIREDATE             23-JAN-82
          14 SAL                  1300
          14 COMM
          14 DEPTNO               10
          14 DIV                  10
  
  126 rows selected.
  
  SQL>
  

  Thank you
  Knani.

  Published by: Karthick_Arp on September 23, 2008 12:11 AM

• Export as .xls. Classic report type: SQL (body of function from PL/SQL returning the SQL) query

  Hey guys,.

  I'm using version 4.2.6 apex. The theme is 26.

  IM also using Listener Oracle APEX.

  I can print my classic report in PDF or CSV format.

  But I need to export it as a .xls extension.

  Report type: SQL (body of function from PL/SQL returning the SQL) query

  I need is like this cause my 'where' clause type is dynamic.

  Look at using this method: Tom's Blog: a non-standard export excel 2010 (.xlsx)

  I do something similar for downloads to excel in my projects...

  Thank you

  Tony Miller
  Software LuvMuffin
  Ruckersville, WILL

• SQL (body of function from PL/SQL returning the SQL) query when you use to_char

  We are trying to build a page of Type SQL Query report (body of function from PL/SQL returning SQL query).
  our request is simple, to extract the month of the column recording_date.
  
  declare
  l_query varchar2 (1000);
  Start
  l_query: = 'select to_char (recording_date, 'MM') of re_productive;
  Return l_query;
  end;
  
  but we would like the following for this query problem
  
  Function returning SQL query: query cannot be parsed in the generator. If you believe that your query is syntactically correct, check the box of generic columns below the source of the region without analysis.
  (ORA-06550: line 4, column 42: PLS-00103: encountered the symbol "MY" what awaits one of the following values:.) (* @ % & = - +; <>/ at is mod remains not rem <>or! = or ~ = > = < = <>and or as between | multiset Member SUBMULTISET_ the symbol ".") was inserted before 'MY' to continue.)
  
  Notes:
  1 - the request is correct and it has been tested under sqlplus and toad.
  2. we tried option use generic name (analysis of query runtime only) column, but we get the same problem.
  
  
  any quick help please.

  Hello

  You have not escaped your quote in the string. Try this...

  DECLARE
  l_query VARCHAR2(32767);
  
  BEGIN
  
  l_query:= 'select to_char(recording_date,''MM'') from re_productive';
  
  RETURN l_query;
  
  END;
  

  See you soon

  Ben

• Assigning a page element in the region of the "body of function return PLSQL SQL query.

  I've not been here in a long time. I like the new forum text editor!
  
  I have a search page in my application that contains a return region of query SQL PLSQL function body. I use PLSQL to build a query based on the user entries in various page numbers (search text, serial number, year, etc.). Using PLSQL is very useful to enforce the page quickly because there are 1/2 million lines with a lot of text fields some of which are CLOB.
  
  Users want to know how many rows were returned, but if I allow using a paging system that includes the total performance dies because ApEx has to sort through all the pages of output. Instead, I use ' line varies X to Y "without the part of" Z", and it's pretty fast. I can't use the #TOTAL_ROWS # because it does not work with this system of pagination.
  
  So, I built a code within the region of function body PLSQL to build a second query that counts only the lines based on the input parameters. I can do this query within the region using EXECUTE IMMEDIATE and the number to an output variable. The disconnect is that I can not then assign it to a page element. If I add a statement assigned to a page element, either by
  
  : P45_COUNT: = p_count;
  or
  APEX_UTIL. SET_SESSION_STATE ('P45_COUNT', p_count);
  
  then when I submit the changes I get
  
  ERR-1002 unable to find point item ID 'P45_COUNT' in the application '4000 '.
  
  as if the ApEx is not looking for the item in my application, but in the application development environment. I am able to write the results to a table and then recover data in the next region. That's how I got around the problem, but it seems too complicated and unnecessary.
  
  I wrote the following code just to illustrate the problem.
  
  Make sense? Any ideas?
  
  Thank you!
  
  Bill
  
  
  declare
  p_sql varchar2 (32767).
  p_sql_count varchar2 (32767).
  p_table_count number (2);
  p_count number (10);
  p_instr number (10);
  Start
  p_sql: = q'! Select g.id, g.widget, g.year_made, g.serial!';
  p_sql: = p_sql | q'! g table_g where g.status = 1!';
  
  If: P45_YEAR_MADE is not null then
  p_sql: = p_sql | q'! and $P45_YEAR_MADE = g.year_made!';
  end if;
  If: P45_SERIAL is not null then
  p_sql: = p_sql | q'! and upper (g.serial) like '% "| Upper ($P45_SERIAL) | » %' !';
  end if;
  If: P45_WIDGET_SEARCH is not null then
  p_sql: = p_sql | q'! and upper (g.widget) like '% "| Upper ($P45_WIDGET_SEARCH) | » %' !';
  end if;
  
  p_instr: = instr (p_sql, 'of g table_g where g.status = 1');
  p_sql_count: = ' select count (g.id) of "| substr (p_sql, p_instr);
  
  p_sql_count: = replace (replace (replace (p_sql_count, ' $P45_YEAR_MADE ',: P45_YEAR_MADE), "$P45_SERIAL", "' |: P45_SERIAL |)) ('), "$P45_WIDGET_SEARCH", "' | : P45_WIDGET_SEARCH | '''');
  
  run immediately p_sql_count in p_count;
  
  / * the following
  
  : P45_COUNT: = p_count;
  
  gives this error when I submit the region in the development environment
  
  ERR-1002 unable to find point item ID 'P45_COUNT' in the application '4000 '.
  
  */
  
  Select count (1) in the table_sql p_table_count where app_session =: APP_SESSION.
  If p_table_count = 0 then
  insert into table_sql (app_session, sql_text, session_date, count) values (: APP_SESSION, p_sql_count, sysdate, p_count);
  on the other
  Update table_sql set sql_text = p_sql_count, session_date = sysdate, count = p_count where app_session =: APP_SESSION.
  end if;
  
  / * the above written SQL and count of a table * /.
  
  Return replace(p_sql,'$',':');
  end;

  Hello

  Try the suggestion of Scott in Re: how to get the query region "PL/SQL function body returns the query string"?

  Andy

• How to get the query of the region "PL/SQL function body returns the query string"?

  Hello
  
  is it possible to get the query string from the region of type "PL/SQL function body returns the query string"?
  
  I can get the definition of the region as a PL/SQL procedure, but I am interested in the returned query. I tried to write something like
  
  < pre > v_return_query: = «...» » ;
  : P49_QUERY: = v_return_query;
  Return v_return_query; < / pre >
  
  to save the return on hidden item P49_QUERY string, but it does not work. I get the error message: ERR-1002 cannot find the item for the "P49_QUERY" element ID in the application '4000 '.
  
  Kind regards
  Przemek

  If you need to make reference to a page element in the block then you can use this type of control to avoid having to use generic column names:

  if apex_application.get_current_flow_sgid(:APP_ID) = apex_application.get_sgid then-- runtime  :P9_SQL := vSQL;else-- design time  null;end if;
  

  But if all you want to do is capture the SQL debugging you can take all the references element in the block and use the insert statement (in a debug table) as I showed earlier.

  Scott

• Function body PLSQL returning a sql report returns ORA-01403 no data found

  I'm on APEX 3.1.2.00.02 and Oracle 10 g.
  
  I develop a relationship with the type of SQL query (body of function from PL/SQL returning SQL query). But the performance of the report, I get
  
  error report:
  ORA-01403: no data found
  
  
  Source of the region

  declare
    qry varchar2(32767);
  begin
    --Procedure call
    my_pkg.get_query(qry);
  
    htp.p(qry);
  
    return /*select 1 from dual */ qry;
  end;

  Procedure

  PROCEDURE get_query (V_QRY OUT VARCHAR2)
  IS
    qry varchar2(32767);
  begin
  
    qry := ' select name
       , max(decode(to_char(service_date,''Mon-YY''), ''Jan-09'', value, null)) as "Jan-09"
       , max(decode(to_char(service_date,''Mon-YY''), ''Jan-09'', value, null)) as "Feb-09"
       from MY_TABLE
       group by name ';
    
    V_QRY := qry;
  end;

  The query will be improved later to add more month and year according to the user settings that I am running on this report.
  
  I want to use specific query column names. I saw this suggestion from Scott in a number of threads to use / * select 1 double * / with the query, but does not not in my case.
  
  Please can anyone suggest what I can do to make it work?
  
  Kind regards
  
  Amir

  First of all, unit you have tested the procedure (namely, in the workshop of SQL, SQL * Plus, SQL Developer, etc, etc) to see if it produces the output in the first place right?

  If you have, and the generated query string is valid, try to assign the output to a page element (allowing you to visualize in the session browser), or even through the procedure output window for debugging (using the wwv_flow.debug function). This might indicate a change of State or session that is causing it not to return. You might find this easier to achieve if you switch from one "procedure and output parameter ' combination 'function returning string' approach."

  If not, try to re-create the report in a new region - sometimes I came across strange bugs with parts of the report which were solved in this way.