Result of function returning XMLType truncated in query

Oracle 10.2.0.2.0
myFunc() is a function returning XMLType
The query:
select myFunc() from dual;
return XML about 2Kb
If I try to run the following query:
select XMLElement("Test",(myFunc())) from dual;
then I get a pice of XML with strange symbols at the end (like this L#sП)
in 9.2.8.0 all works properly. What I should do?

CREATE TABLE test_data
(loan_id VARCHAR2(12) NOT NULL,
workparty_id NUMBER,
property_id NUMBER,
contact_id NUMBER,
primary_flag NUMBER,
gen_comment VARCHAR2(4000),
last_updated DATE,
user_name VARCHAR2(50),
deleted_flag NUMBER,
cont_role_id NUMBER,
contact_person_id NUMBER);
CREATE TABLE test_data2
(contact_id NUMBER,
name VARCHAR2(44));
INSERT INTO test_data (LOAN_ID,WORKPARTY_ID,PROPERTY_ID,CONTACT_ID,PRIMARY_FLAG,GEN_COMMENT,LAST_UPDATED,USER_NAME,DELETED_FLAG,CONT_ROLE_ID,CONTACT_PERSON_ID)
VALUES('TEST_L1',10541,12439,11445,1,NULL,TO_DATE('2008-10-17 12:53:32', 'YYYY-MM-DD HH24:MI:SS'),'testuser',0,6,NULL);
INSERT INTO test_data (LOAN_ID,WORKPARTY_ID,PROPERTY_ID,CONTACT_ID,PRIMARY_FLAG,GEN_COMMENT,LAST_UPDATED,USER_NAME,DELETED_FLAG,CONT_ROLE_ID,CONTACT_PERSON_ID)
VALUES('TEST_L1',10542,12439,10697,1,NULL,TO_DATE('2008-10-17 12:53:32', 'YYYY-MM-DD HH24:MI:SS'),'testuser',0,2,NULL);
INSERT INTO test_data (LOAN_ID,WORKPARTY_ID,PROPERTY_ID,CONTACT_ID,PRIMARY_FLAG,GEN_COMMENT,LAST_UPDATED,USER_NAME,DELETED_FLAG,CONT_ROLE_ID,CONTACT_PERSON_ID)
VALUES('TEST_L1',10543,12439,2070,1,NULL,TO_DATE('2008-10-17 12:53:32', 'YYYY-MM-DD HH24:MI:SS'),'testuser',0,10,NULL);
INSERT INTO test_data (LOAN_ID,WORKPARTY_ID,PROPERTY_ID,CONTACT_ID,PRIMARY_FLAG,GEN_COMMENT,LAST_UPDATED,USER_NAME,DELETED_FLAG,CONT_ROLE_ID,CONTACT_PERSON_ID)
VALUES('TEST_L1',10544,12439,2070,1,NULL,TO_DATE('2008-10-17 12:53:32', 'YYYY-MM-DD HH24:MI:SS'),'testuser',0,11,NULL);
INSERT INTO test_data (LOAN_ID,WORKPARTY_ID,PROPERTY_ID,CONTACT_ID,PRIMARY_FLAG,GEN_COMMENT,LAST_UPDATED,USER_NAME,DELETED_FLAG,CONT_ROLE_ID,CONTACT_PERSON_ID)
VALUES('TEST_L1',10545,12439,10527,1,NULL,TO_DATE('2008-10-17 12:53:32', 'YYYY-MM-DD HH24:MI:SS'),'testuser',0,19,33512);
INSERT INTO test_data (LOAN_ID,WORKPARTY_ID,PROPERTY_ID,CONTACT_ID,PRIMARY_FLAG,GEN_COMMENT,LAST_UPDATED,USER_NAME,DELETED_FLAG,CONT_ROLE_ID,CONTACT_PERSON_ID)
VALUES('TEST_L1',12694,12439,11218,1,NULL,TO_DATE('2008-10-17 12:53:32', 'YYYY-MM-DD HH24:MI:SS'),'testuser',0,20,NULL);
INSERT INTO test_data (LOAN_ID,WORKPARTY_ID,PROPERTY_ID,CONTACT_ID,PRIMARY_FLAG,GEN_COMMENT,LAST_UPDATED,USER_NAME,DELETED_FLAG,CONT_ROLE_ID,CONTACT_PERSON_ID)
VALUES('TEST_L1',12695,12439,11219,0,NULL,TO_DATE('2008-10-17 12:53:32', 'YYYY-MM-DD HH24:MI:SS'),'testuser',0,20,NULL);
INSERT INTO test_data (LOAN_ID,WORKPARTY_ID,PROPERTY_ID,CONTACT_ID,PRIMARY_FLAG,GEN_COMMENT,LAST_UPDATED,USER_NAME,DELETED_FLAG,CONT_ROLE_ID,CONTACT_PERSON_ID)
VALUES('TEST_L1',12696,12439,11566,0,NULL,TO_DATE('2008-10-17 12:53:32', 'YYYY-MM-DD HH24:MI:SS'),'testuser',0,20,NULL);
INSERT INTO test_data (LOAN_ID,WORKPARTY_ID,PROPERTY_ID,CONTACT_ID,PRIMARY_FLAG,GEN_COMMENT,LAST_UPDATED,USER_NAME,DELETED_FLAG,CONT_ROLE_ID,CONTACT_PERSON_ID)
VALUES('TEST_L1',11141,12439,10066,0,NULL,TO_DATE('2008-10-17 12:53:32', 'YYYY-MM-DD HH24:MI:SS'),'testuser',0,7,NULL);
INSERT INTO test_data (LOAN_ID,WORKPARTY_ID,PROPERTY_ID,CONTACT_ID,PRIMARY_FLAG,GEN_COMMENT,LAST_UPDATED,USER_NAME,DELETED_FLAG,CONT_ROLE_ID,CONTACT_PERSON_ID)
VALUES('TEST_L1',11142,12439,11215,1,NULL,TO_DATE('2008-10-17 12:53:32', 'YYYY-MM-DD HH24:MI:SS'),'testuser',0,30,NULL);
INSERT INTO test_data (LOAN_ID,WORKPARTY_ID,PROPERTY_ID,CONTACT_ID,PRIMARY_FLAG,GEN_COMMENT,LAST_UPDATED,USER_NAME,DELETED_FLAG,CONT_ROLE_ID,CONTACT_PERSON_ID)
VALUES('TEST_L1',11143,12439,11216,1,NULL,TO_DATE('2008-10-17 12:53:32', 'YYYY-MM-DD HH24:MI:SS'),'testuser',0,5,NULL);
INSERT INTO test_data (LOAN_ID,WORKPARTY_ID,PROPERTY_ID,CONTACT_ID,PRIMARY_FLAG,GEN_COMMENT,LAST_UPDATED,USER_NAME,DELETED_FLAG,CONT_ROLE_ID,CONTACT_PERSON_ID)
VALUES('TEST_L1',11150,12439,10433,1,NULL,TO_DATE('2008-10-17 12:53:32', 'YYYY-MM-DD HH24:MI:SS'),'testuser',0,3,NULL);
INSERT INTO test_data (LOAN_ID,WORKPARTY_ID,PROPERTY_ID,CONTACT_ID,PRIMARY_FLAG,GEN_COMMENT,LAST_UPDATED,USER_NAME,DELETED_FLAG,CONT_ROLE_ID,CONTACT_PERSON_ID)
VALUES('TEST_L1',12307,12439,1984,1,NULL,TO_DATE('2008-10-17 12:53:32', 'YYYY-MM-DD HH24:MI:SS'),'testuser',0,25,NULL);
INSERT INTO test_data (LOAN_ID,WORKPARTY_ID,PROPERTY_ID,CONTACT_ID,PRIMARY_FLAG,GEN_COMMENT,LAST_UPDATED,USER_NAME,DELETED_FLAG,CONT_ROLE_ID,CONTACT_PERSON_ID)
VALUES('TEST_L1',23792,12439,11217,1,NULL,TO_DATE('2008-10-17 12:53:32', 'YYYY-MM-DD HH24:MI:SS'),'testuser',0,15,NULL);
INSERT INTO test_data (LOAN_ID,WORKPARTY_ID,PROPERTY_ID,CONTACT_ID,PRIMARY_FLAG,GEN_COMMENT,LAST_UPDATED,USER_NAME,DELETED_FLAG,CONT_ROLE_ID,CONTACT_PERSON_ID)
VALUES('TEST_L1',87283,12439,14014,0,NULL,TO_DATE('2008-10-17 12:53:32', 'YYYY-MM-DD HH24:MI:SS'),'testuser',0,32,NULL);
INSERT INTO test_data2 (CONTACT_ID,NAME)
VALUES(11218,'11218user');
INSERT INTO test_data2 (CONTACT_ID,NAME)
VALUES(10433,'10433user');
INSERT INTO test_data2 (CONTACT_ID,NAME)
VALUES(11217,'11217user');
INSERT INTO test_data2 (CONTACT_ID,NAME)
VALUES(10066,'10066user');
INSERT INTO test_data2 (CONTACT_ID,NAME)
VALUES(14014,'14014user');
INSERT INTO test_data2 (CONTACT_ID,NAME)
VALUES(11219,'11219user');
INSERT INTO test_data2 (CONTACT_ID,NAME)
VALUES(11566,'11566user');
INSERT INTO test_data2 (CONTACT_ID,NAME)
VALUES(11445,'11445user');
INSERT INTO test_data2 (CONTACT_ID,NAME)
VALUES(10527,'10527user');
INSERT INTO test_data2 (CONTACT_ID,NAME)
VALUES(11215,'11215user');
INSERT INTO test_data2 (CONTACT_ID,NAME)
VALUES(10697,'10697user');
INSERT INTO test_data2 (CONTACT_ID,NAME)
VALUES(2070,'2070user');
INSERT INTO test_data2 (CONTACT_ID,NAME)
VALUES(11216,'11216user');
INSERT INTO test_data2 (CONTACT_ID,NAME)
VALUES(1984,'1984user');
commit;
create or replace function myFuncXML return xmltype is
ret xmltype;
begin
select
XMLElement("WorkingParties",
XMLAgg(
XMLElement("Items",
XMLForest(
wp.workparty_id "ID",
wp.loan_id "LoanID",
wp.property_id "PropertyID",
wp.contact_id "ContactID",
wp.cont_role_id "ContRoleId",
null "ParentContactID",
wp.gen_comment "Description",
wp.primary_flag "PrimaryFlag"
) into ret
from test_data wp
where
nvl(wp.deleted_flag,0) <> 1 and
wp.property_id = 12439
and exists (select contact_id from test_data2 where contact_id = wp.contact_id)
return ret;
end;
This sql returns - ok
select myFuncXML from dual;
This sql - fail
select
XMLElement("Test_root",
myfuncxml
from dual;
if I comment line
and exists (select contact_id from test_data2 where contact_id = wp.contact_id)
in function - all works fine

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Report- Pl/sql function returning sql query parsing page items as text?

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v_sql:= 'select v_candidate_id, v_fname,v_current_employer,v_Experience_years from candidature where V_REQUIREMENT = :JOB_CODE and v_experience_years >= :MIN_EXP and v_experience_years <= :MAX_EXP and source like ' || '''' || '%'|| ':SOURCES1' || '%' || '''';
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select unique(query) from query_list;
select v_candidate_id, v_fname,v_current_employer,v_Experience_years from candidature where V_REQUIREMENT = :JOB_CODE and v_experience_years >= :MIN_EXP and v_experience_years <= :MAX_EXP and source like '%:SOURCES1%'
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JOBCODE MINEX MAXEX SOURCE
21 1 10 donkeyHire
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select v_candidate_id, v_fname,v_current_employer,v_Experience_years from candidature where V_REQUIREMENT = 21 and v_experience_years >= 1 and v_experience_years <= and source like 'donkeyHire'
V_CANDIDATE_ID V_FNAME V_CURRENT_EMPLOYER V_EXPERIENCE_YEARS
2 Vengu Andale Tech 4
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Waiting for an early reply.
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Venkat - You don't want to put ':SOURCES1' in quotes like that.
Scott

APEX, BI Publisher and SQL Query (PL/SQL Function returning SQL Query)..

I don't know if I should be posting this in this Forum or the BI Publisher forum, so I am posting in BOTH forums..
I love APEX, let me say that first.. And appreciate the support offered here by the group, but am running int a confusing issue when BI Publisher tries to build a report from the above type APEX report..
Here is my dilemma:
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An XML file is produced, and I use this to build the RTF format file that I load back into APEX and try to use it for the PDF rendering of the report. I can view the output as a PDF in the Word add on, but when I try using it with the report, it is returning an empty PDF file.
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Tony Miller
UTMB/EHN
Title changed, maybe SOMEONE has an idea on this??
Message was edited by:
Tony Miller

Hi,
1/ first check you are passing the bind variables and
appropriate values in the call to your report - if
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So if your query takes :P10_USERNAME variable then
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f?p=&APP_ID.:0:&SESSION.:PRINT_REPORT=YOUR_REP_QUERY_N
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it fails to render the data (bug in Apex-> Bi
Publisher integration maybe?)
4/ If using the table in the rtf template check its
width does not overflow the page margins - there is a
problem with pdf export
5/ check
/oc4j/j2ee/home/application-deployments/xmlpserver/app
lication.log forthe information on BI Publisher runs
RadoIssue was in the APEX page having issues.. I recoded a new page and am able to generate BI Publisher based PDF files..
Thank you,
Tony Miller
UTMB/EHN

On Submit process not firing -report (PL/SQL function returning SQL query)

Can anyone suggest possible causes / solutions for the following problem?
I have a report region that uses a PL/SQL function returning SQL query. The report allows the user to update multiple fields / rows and then click a button to submit the page which should run the On-Submit process to update the database. However the process does not run and I get a 'HTTP404 page cannot be found' error; and when I navigate back using the Back button I cannot then navigate to any other page in my application without getting the same error. The button was created by a wizard selecting the options to submit the page and redirect to a (same) page. The button does not actually have a redirect in its definition but the wizard created a branch to the same page which should work and the button has the text 'submit as SUBMIT' next to it so it appears to be set up correctly.
I have recreated this page several times in my application and I cannot get the On-Submit process to run. However I have created a cut down version of the same page in the sample application on apex.oracle.com at http://apex.oracle.com/pls/otn/f?p=4550:1:179951678764332 and this works perfectly so I am at a loss to understand why it does not work in my application. I cannot post any part of the application itself but if anybody would like to check out page 30 of the sample application (Customer Update Test tab) updating the surnames only, using credentials ja, demo, demo this is pretty much what I have got in my application.
Any ideas would be much appreciated?

Thanks for the suggestions guys. I have now identified that the problem goes away when I remove the second table from my report query. The original report query retrieved data from two tables and the process was updating only one of the tables. I thought I had approached the task logically i.e. first get the report to display the records from the two tables, then get the process to update the first table and finally to modify the process further to update the second table.
Can anyone point me to an example of multiple row updates on multiple tables using a PL/SQL function returning an SQL query?

SQL Query(PL/SQL Function Returning SQL Query)

I am trying to write a dynamic report using SQL Query(PL/SQL Function Returning SQL Query).
I can get the report to run but I need to concatinate some columns into one, seperated by a comma or a dash.
I have tried select *****||','||***** alias
also select *****||'-'||***** alias
but I always get an error.
Is there a way of doing this please
Gus

This is my full query
declare
v_query varchar2(4000);
begin
if :P63_TRAN_INFO = 2 THEN
v_query := 'select
 A.FILENR,
 A.EXERCISENAME,
A.STARTDATE,
A.ENDDATE,
 A.UNIT,
A.ACCADDRESSES, B.ADDRESS, B.ADDRESS_1, B.POST_CODE, B.TOWN,
 A.EXERCISEAREAS,
 A.TOTALVEHICLES,
A.TOTALTROOPS+A.RNTOTALTROOPS+A.RAFTOTALTROOPS TOTALTROOPS,
A.CAR, A.MINIBUS, A.HGV,
A.NAMERANK, A.ADDRESS, A.ADDRESSI, A.ADDRESSII, A.POSTCODE,
A.TRANSIT,
A.INFOONLY
from BFLOG_AT A, BFLOG_ACCADDRESS B
WHERE A.ACCADDRESSES = B.NAME
AND A.STARTDATE >= :P63_START_DATE
AND A.ENDDATE <= :P63_END_DATE
AND A.AUTHORISED = 1
AND A.INFOONLY = 1' ;
END IF;
RETURN v_query;
END;
This query runs ok, but if I try changing it to the code below with fields concatinated, then it fails
declare
v_query varchar2(4000);
begin
if :P63_TRAN_INFO = 2 THEN
v_query := 'select
 A.FILENR,
 A.EXERCISENAME,
A.STARTDATE,
A.ENDDATE,
 A.UNIT,
A.ACCADDRESSES||','||B.ADDRESS||','||B.ADDRESS_1||','||B.POST_CODE||','||B.TOWN ADDRESS,
 A.EXERCISEAREAS,
 A.TOTALVEHICLES,
A.TOTALTROOPS+A.RNTOTALTROOPS+A.RAFTOTALTROOPS TOTALTROOPS,
A.CAR, A.MINIBUS, A.HGV,
A.NAMERANK, A.ADDRESS, A.ADDRESSI, A.ADDRESSII, A.POSTCODE,
A.TRANSIT,
A.INFOONLY
from BFLOG_AT A, BFLOG_ACCADDRESS B
WHERE A.ACCADDRESSES = B.NAME
AND A.STARTDATE >= :P63_START_DATE
AND A.ENDDATE <= :P63_END_DATE
--AND (A.EXERCISEAREAS LIKE "GAP, OA, OAL")
--OR (A.EXERCISEAREAS LIKE "Harz")
AND A.AUTHORISED = 1
AND A.INFOONLY = 1' ;
END IF;
RETURN v_query;
END;
Cheers
Gus

Column order in SQL Query (PL/SQL function returning a query)

Hi,
when I define a PL/SQL function returning a query inside a region, I often find that the column order is arbitrarily changed.
How do I enforce the column order ?
Bye,
Flavio

I removed the 11th column called service_name from this dynamic query: and now the report says: report error:
ORA-01403: no data found. I messed around with the Headiuns Type. It was set to Custom. I changed it to Column Names. There is no difference.
I am not sure how to fix?
declare topqry varchar2(32000);
whereqry varchar2(32000);
finalqry varchar2(32000);
var_status varchar2(100);
division_status varchar2(50);
office_status varchar2(1000);
user_status varchar2(1000);
overdue_status varchar2(1000);
begin
if :P10_FALLBACK = 'All' then
var_status:= ' and vp.status in (''FA'',''FBA'',''FBI'',''25%'',''50%'',''90%'',''Closed'') ';
elsif :P10_FALLBACK = 'Active' then
var_status:= ' and vp.status in (''FA'',''25%'',''50%'',''90%'',''FBA'') ';
elsif :P10_FALLBACK = 'FB' then
var_status:= ' and vp.status in (''FBA'',''FBI'') ';
elsif :P10_FALLBACK = 'Closed' then
var_status:= ' and vp.status in (''Closed'') ';
elsif :P10_FALLBACK = 'Inactive' then
var_status:= ' and vp.status in (''FBI'') ';
end if;
if :P10_DIVISION = 'All' then
division_status:= ' and vp.vms_division in (''News'',''Ad Services'') ';
elsif :P10_DIVISION = 'News' then
division_status:= ' and vp.vms_division in (''News'') ';
elsif :P10_DIVISION = 'Ad' then
division_status:= ' and vp.vms_division in (''Ad Services'') ';
end if;
if :P10_OFFICE = '%' then
office_status:= ' and OFFICE_ID in (select office
from VMS_OFFICE_ACCESS
where user_id = lower(:P0_user) ) ';
else
office_status:= ' and OFFICE_ID in :P10_OFFICE ';
end if;
if :P10_LIMIT_USER = '%' then
user_status := ' and SALESPERSON in (select first_name || '' '' || last_name
from VMS_PROSPECT_users u
join vms_office_access o
on u.office_id = OFFICE
where o.user_id = lower(:P0_USER) ) ';
else
user_status:= ' and SALESPERSON in (:P10_LIMIT_USER ) ';
end if;
if :P10_SHOW_OVERDUE = 'Show' then
overdue_status:= ' and target_close_date <= sysdate ';
var_status:= ' and vp.status in (''25%'',''50%'',''90%'',''FBA'') ';
else
overdue_status:= ' and FIRST_APPOINTMENT between
nvl(to_date(:P10_FIRST_APPT_START, ''mm/dd/yyyy''),FIRST_APPOINTMENT) and
nvl(to_date(:P10_FIRST_APPT_END,''mm/dd/yyyy''),FIRST_APPOINTMENT) ';
end if;
topqry := 'SELECT OFFICE_ID ,vp.PROSPECT_ID ,ENTRY_DATE ,ACCOUNT , NEXT_CONTACT_DATE ,ACTION_STEP ,
TARGET_CLOSE_DATE ,vp.STATUS ,SALESPERSON ,vp.SALES_TYPE ,service_name , FIRST_APPOINTMENT ,MODIFY_DATE ,EST_ANNUAL_REVENUE ,EST_INCREMENTAL_REVENUE ,
pi.NOTES , pi.SALES_TYPE ,pi.STATUS ,Contact ,Origin_Source FROM VMS_PROSPECTING_ITEMS pi right outer join VMS_PROSPECTS vp on vp.PROSPECT_ID = pi.PROSPECT_ID left outer join VMS_SERVICES vs on vs.service_ID = pi.service_ID where 1 = 1 ';
whereqry := ' and (not exists (select *
from VMS_PROSPECTING_ITEMS i3
where vp.prospect_id = i3.prospect_id)
or exists (select *
from VMS_PROSPECTING_ITEMS i2
where i2.order_id = pi.order_id
and active = ''Y'' )) and instr(upper(ACCOUNT),upper(nvl(:P10_ACCOUNT,ACCOUNT))) > 0 ';
whereqry := whereqry || var_status || division_status || office_status || user_status || overdue_status;
finalqry := topqry || whereqry;
return finalqry ;
end;

EBS ISG using custom PL/SQL functions that return XMLType

Hi,
We have a custom PL/SQL package that we use for interfacing systems and some of the functions in this package ruturn an XMLType. We want to deploy the package functions as web services through the ISG, but it is not working as expected. When deployed through the ISG, the functions with XMLType return type produce a null response from the ISG (they work fine when called in SQL or PL/SQL; functions with non-XMLTypes work fine).
If we change the return type to CLOB (and use getClobVal() on the XMLType) then we get a response from the ISG, but it changes all the angle-brackets in the CLOB (which is still arbitrary XML text) to < > ...
What is the proper way to get the complex XMLType output through the ISG? Anyone have any more experience?
Thanks,
--Walt

Alex,
For the predicate groups that are indexed/stored, the exact operator types (as in equality, inequality, like etc) that are indexed are specified while assigning the default index parameters. In the following example, exf$indexoper is used to specify the list of indexed operators.
BEGIN
DBMS_EXPFIL.DEFAULT_INDEX_PARAMETERS('Car4Sale',
 exf$attribute_list (
 exf$attribute (attr_name => 'HorsePower(Model, Year)',
 attr_oper => exf$indexoper('=','<','>','>=','<='),
 attr_indexed => 'FALSE') --- stored predicate group
END;
/You can find more information about exf$indexoper at
http://download.oracle.com/docs/cd/B28359_01/appdev.111/b28419/t_expfilobj.htm#ARPLS153
Could you confirm that you chose to index 'is null' and 'is not null' while assigning the default index parameters ? This information is available in OPERATOR_LIST column of the USER_EXPFIL_DEF_INDEX_PARAMS view.
Hope this helps,
-Aravind.

Function returning SQL query for mutiple series in a chart

Hi,
I would like to know if there is a way to specify a single PL/SQL function returning the queries for multiple series in a 2D Line Flash Chart. I have multiple series in my chart that has different values in the where clause. I can write a PL/SQL function that can return all these queries in one shot. Is there anyway that I can specify this function as returning the queries for all the series in the chart?
As an example, assume that I am using the following three queries for the series in my chart:
select deptno, count(*) from emp where deptno = 10 group by deptno
select deptno, count(*) from emp where deptno = 20 group by deptno
select deptno, count(*) from emp where deptno = 30 group by deptno
I can't write a PL/SQL function that returns a query in the multiple series syntax (SELECT link, label, series_1_value [, series_2_value [, ...]]FROM ...) as I am using an aggregate function and my where clause is different for each series.
Thanks,
Rupesh

Hi Roel,
Thanks for your reply. I am already using an analytical function (RATIO_TO_REPORT(COUNT(*)) OVER () ) in my actual report. My problem is that the query for one series differs from the other only in one where clause. I will be able to dynamically able to generate all the queries for all the series in one pl/sql function. But the chart definition screen does not allow us to define a single function that returns queries for the all the series - possibly seperated by some seperator like S1: select.... S2:select and so on.
Regards,
Rupesh

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.

Result of function returning XMLType truncated in query

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