Using 'Function Returning SQL Query' with Flash charts

I have created a pl/sql function that returns a SQL query as a varchar2 of this form:
select null link
<x value> value
<Series1 y value> Series 1 Label
<Series2 y value> Series 2 Label
<Series3 y value> Series 3 Label
from tablea a
join tableb b
on a.col = b.col
order by <x value>
If I now call the function from a Flash Chart Series SQL box with the Query Source Type set to 'Function Returning SQL Query' like this:
return functionname(to_date('30-sep-2010', 'dd-mon-yyyy'))
it parses correctly and the page is saved; however, when I run the page I don't get any output - nor any error messages or other indication of a problem.
Now, if I call the function in a SQL client, capture the SQL query output using dbms_output and paste that into the Flash Chart Series SQL box - changing the Query Source Type to SQL Query - and save the page it works fine when I run it and returns a multi-series flash chart.
Can anyone suggest either;
1. What have I might have missed or done wrong?
2. Any way to usefully diagnose the problem...
I have tried using the Apex debugger - which is very nice, by the way - but it doesn't provide any info on what my problem might be. I even tried writing my own debug messages from my function using the apex_debug_message package - got nothing...
Thanks,
Eric

Hi Eric,
Try expressing the source as this:
begin
   return functionname(to_date('30-sep-2010', 'dd-mon-yyyy'));
end;That works fine for me, and if I take out the begin-end and the trailing semicolon from the return statement I get the same behavior as you.
It does mention in the help for the source (only during the wizard though) that this source type has to be expressed that way, but I agree it would be helpful if the tool would validate for this format when 'Function Returning SQL Query' is used or give some sort of indication of the trouble. Anyway, this should get you going again.
Hope this helps,
John
If you find this information useful, please remember to mark the post "helpful" or "correct" so that others may benefit as well.

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    Are you sure?
    Do as Paul has suggested and post the code that doesn't work (including your extra line) using the {noformat}{noformat} tags +exactly+ as you had it in the region source.
    Cheers
    Ben                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                               

  • SQL Query (PL/SQL function body returning SQL query) when using to_char

    we are trying to build a report page of Type SQL Query (PL/SQL function body returning SQL query).
    our query is so simple, we need to extract the month from the recording_date column.
    declare
    l_query varchar2(1000);
    begin
    l_query:='select to_char(recording_date,'MM')from re_productive';
    return l_query;
    end;
    but we are having the following problem for this query
    Function returning SQL query: Query cannot be parsed within the Builder. If you believe your query is syntactically correct, check the generic columns checkbox below the region source to proceed without parsing.
    (ORA-06550: line 4, column 42: PLS-00103: Encountered the symbol "MON" when expecting one of the following: . ( * @ % & = - + ; < / > at in is mod remainder not rem <> or != or ~= >= <= <> and or like between || multiset member SUBMULTISET_ The symbol ". was inserted before "MON" to continue.)
    Notes:
    1-the query is correct and it was tested under Toad and SQL Plus.
    2- we tried Use Generic Column Names (parse query at runtime only) option but we get the same problem.
    any quick help please.

    Hi
    You haven't escaped your quotes 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;Cheers
    Ben

  • PL/SQL function body returning SQL Query Problem

    I have wandered around the forums and found quite a bit of helpful information that has gotten me to the point I am now at. Unfortuntely, PL/SQL is not my strongest point and I am getting an error when I attempt to run my report.
    This is what I have for my package:
    CREATE OR REPLACE PACKAGE LIB2.report_query
    is
    function create_report2(v1 IN varchar2) RETURN VARCHAR2;
    end report_query;
    CREATE OR REPLACE PACKAGE BODY LIB2.report_query
    as
    function create_report2(v1 in varchar2) return varchar2
    is
    l_vc_format HTMLDB_APPLICATION_GLOBAL.VC_ARR2 := HTMLDB_UTIL.STRING_TO_TABLE(v1);
    l_format varchar2(255) := HTMLDB_UTIL.TABLE_TO_STRING(l_vc_format);
    q1 varchar2(32767) := ' ';
    begin
    q1 :=
    'select b.BOOK_ID, bk.book_id bkid, bkk.book_id bkkid, b.TITLE, b.SUBTITLE, b.SERIES, b.VOLUME, b.ISBN, f.FORMAT_RET, b.DESCRIPTION, .PUBLISHED,'
    ||'b.PURCHASED_FROM, b.COMMENTS, b.WEBSITE, c.LENGTH_MINS, stragg(p.last_name || '', '' || p.first_name) Author, '
    ||'stragg(p.person_id) person_id, '
    ||'pb.name PUBLISHER, decode(b.abridged, ''Y'',''Abridged'',''N'',''Unabridged'') Abridged,'
    ||'(nvl(d.disk01,0)+nvl(d.disk02,0)+nvl(d.disk03,0)+nvl(d.disk04,0)+nvl(d.disk05,0)+nvl(d.disk06,0)+nvl(d.disk07,0)+nvl(d.disk08,0)+'
    ||'nvl(d.disk09,0)+nvl(d.disk10,0)+nvl(d.disk11,0)+nvl(d.disk12,0)+nvl(d.disk13,0)+nvl(d.disk14,0)+nvl(d.disk15,0)+nvl(d.disk16,0)+nvl(d.disk17,0)+'
    ||'nvl(d.disk18,0)+nvl(d.disk19,0)+nvl(d.disk20,0)+nvl(d.disk21,0)+nvl(d.disk22,0)+nvl(d.disk23,0)+nvl(d.disk24,0)+nvl(d.disk25,0)+nvl(d.disk26,0)+'
    ||'nvl(d.disk27,0)+nvl(d.disk28,0)+nvl(d.disk29,0)+nvl(d.disk30,0)+nvl(d.disk31,0)+nvl(d.disk32,0)+nvl(d.disk33,0)+nvl(d.disk34,0)+nvl(d.disk35,0)+'
    ||'nvl(d.disk36,0)+nvl(d.disk37,0)+nvl(d.disk38,0)+nvl(d.disk39,0)+nvl(d.disk40,0)+nvl(d.disk41,0)+nvl(d.disk42,0)+nvl(d.disk43,0)+nvl(d.disk44,0)+'
    ||'nvl(d.disk45,0)+nvl(d.disk46,0)+nvl(d.disk47,0)+nvl(d.disk48,0)+nvl(d.disk49,0)+nvl(d.disk50,0)) total_tracks'
    ||'from book b, '
    ||'book bk,'
    ||'book bkk,'
    ||'person p,'
    ||'lkup_book_author la,'
    ||'lkup_book_publisher lp,'
    ||'lkup_book_format lkf,'
    ||'format f,'
    ||'publisher pb,'
    ||'conversion_info_audio c,'
    ||'lkup_book_disk_info d'
    ||'where b.book_id = la.book_id'
    ||'and b.book_id = bk.book_id'
    ||'and b.book_id = bkk.book_id'
    ||'and p.person_id = la.author_id'
    ||'and b.book_id = lp.book_id'
    ||'and b.book_id = c.book_id'
    ||'and b.book_id = d.book_id'
    ||'and b.book_id = lkf.book_id'
    ||'and lkf.format_id = f.format_id'
    ||'and pb.publisher_id(+) = lp.publisher_id'
    ||'and b.wishlist = ''N'''
    ||'and (upper(b.book_id) like ''%'' || upper(:P40_SEARCH) || ''%'''
    ||'or upper(b.title) like ''%'' || upper(:P40_SEARCH) || ''%'''
    ||'or upper(b.subtitle) like ''%'' || upper(:P40_SEARCH) || ''%'''
    ||'or upper(b.series) like ''%'' || upper(:P40_SEARCH) || ''%'''
    ||'or upper(b.volume) like ''%'' || upper(:P40_SEARCH) || ''%'''
    ||'or upper(b.isbn) like ''%'' || upper(:P40_SEARCH) || ''%'''
    ||'or upper(b.format) like ''%'' || upper(:P40_SEARCH) || ''%'''
    ||'or upper(b.description) like ''%'' || upper(:P40_SEARCH) || ''%'''
    ||'or upper(b.published) like ''%'' || upper(:P40_SEARCH) || ''%'''
    ||'or upper(b.purchased_from) like ''%'' || upper(:P40_SEARCH) || ''%'''
    ||'or upper(b.comments) like ''%'' || upper(:P40_SEARCH) || ''%'''
    ||'or upper(b.website) like ''%'' || upper(:P40_SEARCH) || ''%'''
    ||'or upper(p.last_name) like ''%'' || upper(:P40_SEARCH) || ''%'''
    ||'or upper(p.first_name) like ''%'' || upper(:P40_SEARCH) || ''%'''
    ||'or upper(pb.name) like ''%'' || upper(:P40_SEARCH) || ''%'''
    ||'or upper(:P40_SEARCH) is null)'
    ||'and ((upper(b.title) like ''%'' || upper(:P40_TITLE) || ''%'' or upper(:P40_TITLE) is null))'
    ||'and ((upper(b.series) like ''%'' || upper(:P40_SERIES) || ''%'' or upper(:P40_SERIES) is null))'
    ||'and ((upper(p.last_name) like ''%'' || upper(:P40_LASTNAME) || ''%'' or upper(:P40_LASTNAME) is null))'
    ||'and ((upper(p.first_name) like ''%'' || upper(:P40_FIRSTNAME) || ''%'' or upper(:P40_FIRSTNAME) is null))'
    ||'and ((upper(f.format_ret) in (upper(l_vc_format)) or upper(:P40_FORMAT) is null))'
    ||'group by b.BOOK_ID, bk.book_id, bkk.book_id, b.TITLE, b.SUBTITLE, b.SERIES, b.VOLUME, b.ISBN, f.FORMAT_ret, b.DESCRIPTION, '
    ||'b.PUBLISHED, b.PURCHASED_FROM, b.COMMENTS, b.WEBSITE, c.LENGTH_MINS, pb.name, b.abridged, '
    ||'(nvl(d.disk01,0)+nvl(d.disk02,0)+nvl(d.disk03,0)+nvl(d.disk04,0)+nvl(d.disk05,0)+nvl(d.disk06,0)+nvl(d.disk07,0)+nvl(d.disk08,0)+'
    ||'nvl(d.disk09,0)+nvl(d.disk10,0)+nvl(d.disk11,0)+nvl(d.disk12,0)+nvl(d.disk13,0)+nvl(d.disk14,0)+nvl(d.disk15,0)+nvl(d.disk16,0)+nvl(d.disk17,0)+'
    ||'nvl(d.disk18,0)+nvl(d.disk19,0)+nvl(d.disk20,0)+nvl(d.disk21,0)+nvl(d.disk22,0)+nvl(d.disk23,0)+nvl(d.disk24,0)+nvl(d.disk25,0)+nvl(d.disk26,0)+'
    ||'nvl(d.disk27,0)+nvl(d.disk28,0)+nvl(d.disk29,0)+nvl(d.disk30,0)+nvl(d.disk31,0)+nvl(d.disk32,0)+nvl(d.disk33,0)+nvl(d.disk34,0)+nvl(d.disk35,0)+'
    ||'nvl(d.disk36,0)+nvl(d.disk37,0)+nvl(d.disk38,0)+nvl(d.disk39,0)+nvl(d.disk40,0)+nvl(d.disk41,0)+nvl(d.disk42,0)+nvl(d.disk43,0)+nvl(d.disk44,0)+'
    ||'nvl(d.disk45,0)+nvl(d.disk46,0)+nvl(d.disk47,0)+nvl(d.disk48,0)+nvl(d.disk49,0)+nvl(d.disk50,0))';
    RETURN q1;
    EXCEPTION
    WHEN OTHERS THEN
    RETURN q1;
    end create_report2;
    end;
    And here is what I have for my Region Source on my report:
    return lib2.report_query.create_report2(v('P40_FORMAT'));
    Here is my error when I run the page:
    failed to parse SQL query:
    ORA-00936: missing expression
    I have tried the region source line in many variations, this is just my latest one. None of them have worked. I am quite obviously missing something quite important and probably extremely silly. Any ideas?
    Thanks!
    Chrissy

    Chrissy,
    This is what the package returns as a query:
    select b.BOOK_ID, bk.book_id bkid, bkk.book_id bkkid,
    b.TITLE, b.SUBTITLE, b.SERIES, b.VOLUME, b.ISBN, f.FORMAT_RET,
    b.DESCRIPTION, .PUBLISHED,b.PURCHASED_FROM, b.COMMENTS, b.WEBSITE,
    c.LENGTH_MINS, stragg(p.last_name || ', ' || p.first_name) Author,
    stragg(p.person_id) person_id, pb.name PUBLISHER, decode(b.abridged,
    'Y','Abridged','N','Unabridged') Abridged,
    (nvl(d.disk01,0)+nvl(d.disk02,0)+nvl(d.disk03,0)+nvl(d.disk04,0)+nvl(d.disk05,0)
    nvl(d.disk06,0)nvl(d.disk07,0)+nvl(d.disk08,0)+nvl(d.disk09,0)+nvl(d.disk10,0)
    nvl(d.disk11,0)nvl(d.disk12,0)+nvl(d.disk13,0)+nvl(d.disk14,0)+nvl(d.disk15,0)
    nvl(d.disk16,0)nvl(d.disk17,0)+nvl(d.disk18,0)+nvl(d.disk19,0)+nvl(d.disk20,0)
    nvl(d.disk21,0)nvl(d.disk22,0)+nvl(d.disk23,0)+nvl(d.disk24,0)+nvl(d.disk25,0)
    nvl(d.disk26,0)nvl(d.disk27,0)+nvl(d.disk28,0)+nvl(d.disk29,0)+nvl(d.disk30,0)
    nvl(d.disk31,0)nvl(d.disk32,0)+nvl(d.disk33,0)+nvl(d.disk34,0)+nvl(d.disk35,0)
    nvl(d.disk36,0)nvl(d.disk37,0)+nvl(d.disk38,0)+nvl(d.disk39,0)+nvl(d.disk40,0)
    nvl(d.disk41,0)nvl(d.disk42,0)+nvl(d.disk43,0)+nvl(d.disk44,0)+nvl(d.disk45,0)
    nvl(d.disk46,0)nvl(d.disk47,0)+nvl(d.disk48,0)+nvl(d.disk49,0)+nvl(d.disk50,0)) total_tracksfrom book b,
    book bk,book bkk,person p,lkup_book_author la,lkup_book_publisher lp,
    lkup_book_format lkf,format f,publisher pb,conversion_info_audio c,
    lkup_book_disk_info dwhere b.book_id = la.book_idand b.book_id = bk.book_idand b.book_id = bkk.book_idand p.person_id = la.author_idand
    b.book_id = lp.book_idand b.book_id = c.book_idand b.book_id = d.book_idand
    b.book_id = lkf.book_idand lkf.format_id = f.format_idand pb.publisher_id(+) = lp.publisher_idand
    b.wishlist = 'N'and (upper(b.book_id) like '%' || upper(:P40_SEARCH) || '%'
    or upper(b.title) like '%' || upper(:P40_SEARCH) || '%'or upper(b.subtitle) like '%' ||
    upper(:P40_SEARCH) || '%'or upper(b.series) like '%' || upper(:P40_SEARCH) || '%'or
    upper(b.volume) like '%' || upper(:P40_SEARCH) || '%'or upper(b.isbn) like '%' ||
    upper(:P40_SEARCH) || '%'or upper(b.format) like '%' || upper(:P40_SEARCH) || '%'or upper(b.description) like '%' || upper(:P40_SEARCH) || '%'or upper(b.published)
    like '%' || upper(:P40_SEARCH) || '%'or upper(b.purchased_from) like '%' ||
    upper(:P40_SEARCH) || '%'or upper(b.comments) like '%' || upper(:P40_SEARCH)
    || '%'or upper(b.website) like '%' || upper(:P40_SEARCH) || '%'or
    upper(p.last_name) like '%' || upper(:P40_SEARCH) || '%'or upper(p.first_name)
    like '%' || upper(:P40_SEARCH) || '%'or upper(pb.name) like '%' ||
    upper(:P40_SEARCH) || '%'or upper(:P40_SEARCH) is null)and
    ((upper(b.title) like '%' || upper(:P40_TITLE) || '%' or
    upper(:P40_TITLE) is null))and ((upper(b.series) like '%' ||
    upper(:P40_SERIES) || '%' or upper(:P40_SERIES) is null))and
    ((upper(p.last_name) like '%' || upper(:P40_LASTNAME) || '%' or
    upper(:P40_LASTNAME) is null))and ((upper(p.first_name) like '%' ||
    upper(:P40_FIRSTNAME) || '%' or upper(:P40_FIRSTNAME) is null))and
    ((upper(f.format_ret) in (upper(l_vc_format)) or upper(:P40_FORMAT) is null))
    group by b.BOOK_ID, bk.book_id, bkk.book_id, b.TITLE, b.SUBTITLE, b.SERIES, b.VOLUME,
    b.ISBN, f.FORMAT_ret, b.DESCRIPTION, b.PUBLISHED, b.PURCHASED_FROM, b.COMMENTS, b.WEBSITE,
    c.LENGTH_MINS, pb.name, b.abridged, (nvl(d.disk01,0)+nvl(d.disk02,0)+nvl(d.disk03,0)
    nvl(d.disk04,0)nvl(d.disk05,0)+nvl(d.disk06,0)+nvl(d.disk07,0)+nvl(d.disk08,0)
    nvl(d.disk09,0)nvl(d.disk10,0)+nvl(d.disk11,0)+nvl(d.disk12,0)+nvl(d.disk13,0)
    nvl(d.disk14,0)nvl(d.disk15,0)+nvl(d.disk16,0)+nvl(d.disk17,0)+nvl(d.disk18,0)
    nvl(d.disk19,0)nvl(d.disk20,0)+nvl(d.disk21,0)+nvl(d.disk22,0)+nvl(d.disk23,0)
    nvl(d.disk24,0)nvl(d.disk25,0)+nvl(d.disk26,0)+nvl(d.disk27,0)+nvl(d.disk28,0)
    nvl(d.disk29,0)nvl(d.disk30,0)+nvl(d.disk31,0)+nvl(d.disk32,0)+nvl(d.disk33,0)
    nvl(d.disk34,0)nvl(d.disk35,0)+nvl(d.disk36,0)+nvl(d.disk37,0)+nvl(d.disk38,0)
    nvl(d.disk39,0)nvl(d.disk40,0)+nvl(d.disk41,0)+nvl(d.disk42,0)+nvl(d.disk43,0)
    nvl(d.disk44,0)nvl(d.disk45,0)+nvl(d.disk46,0)+nvl(d.disk47,0)+nvl(d.disk48,0)
    nvl(d.disk49,0)nvl(d.disk50,0))
    This query will never work. I marked only couple of errors you have there. Actually,
    I meant "formating" errors rather than "syntactical" errors. You are missing spaces
    all over the place. This is why I suggested to use a CLOB column in a test table
    to return the query for debugging purposes - this is how I do it at least, when I need
    to escape and concatenate a lot of code.
    If you are referencing item values from a user session in a function or a procedure,
    then you need to use the v('ITEM') syntax instead of :ITEM syntax. However, if the
    output of this procedure will be used as a function returning SQL query, you will
    be fine with :ITEM.
    Denes Kubicek
    http://deneskubicek.blogspot.com/
    http://htmldb.oracle.com/pls/otn/f?p=31517:1
    -------------------------------------------------------------------

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