Querying PL/SQL function which returns SYS_REFCURSOR

Hello:
I have a PL/SQL function with return type of SYS_REFCURSOR.
In SQLPlus, I can query it either as
var c refcursor
exec :c := func(...)
print c
or
select func(...) from dual;
Running the latter in Eclipse 3.3 with oracle DTP extensions installed gives me OracleResultSetImpl object in the SQL Results view.
Can the code be a little smarter and recognize that a sql query may return "indirect" resultset?
Regards,
Ernest

This is noted; will be the interface better to handle the return values. Thanks

Similar Messages

SQL Query ( PL/SQL function body returning query ) page

Hello Friends,
I have a page with type SQL Query ( PL/SQL function body returning query ).
I have written a pl/sql block that returns a sql query - select statment.
Some times i am getting no data found error - does it got to do with the variable that stores the query .
=======================
ORA-06502: PL/SQL: numeric or value error: character string buffer too small
Error ERR-1101 Unable to process function body returning query.
OK
=====================
When the query is returned with records where exactly the records are stored is it in the variable declared in pl/sql block or with the Oracle Apex implicit cursor.
Here's the pl/sql block ..
The query is generated while the user is navigating through pages ..
====================
declare
l_return_stmt varchar2(32767);
l_select varchar2(32000);
l_from varchar2(32000);
l_where varchar2(32000);
l_order_by varchar2(32000);
l_stmt_recordcount varchar2(32000);
l_recordcount number ;
begin
l_select := 'select '||:P10_VARLIST1||:P10_VARLIST2||:P10_VARLIST3
||:P10_VARLIST4||:P10_VARLIST5;
l_from := ' from '||:P10_RELATION;
if length(:P10_WHERE) > 0 then
l_where := ' where '||:P10_WHERE;
else
l_where := '';
end if;
if length(:P10_ORDER_BY) > 0 then
l_order_by := ' order by '||:P10_ORDER_BY;
else
l_order_by := '';
end if;
l_return_stmt := l_select||l_from||l_where||l_order_by;
:P10_STMT := l_return_stmt;
return l_return_stmt;
end;
=============================
Appreciate your help in this regard.
thanks/kumar
Edited by: kumar73 on Apr 22, 2010 6:38 AM

It looks like the query string you are trying to pass back exceeds the 32K limit for a varchar. Where this is happening is kind of difficult to tell as it could be any number of points, and also depends on what you are passing into the process via page items.
I would first try to establish what combination of page items causes this error to occur. Then, starting from the bottom and working your way backwards, I would start 'switching off' some of the items you use to build your query until it breaks again, thus establishing which part is leading to the error.
Also, I'm not sure what :P10_STMT is doing (are you maybe using this for visiblity of the query created)?
It looks like the query string you are trying to pass back exceeds the 32K limit for a varchar. Where this is happening is kind of difficult to tell as it could be any number of points, and also depends on what you are passing into the process via page items.
I would first try to establish what combination of page items causes this error to occur. then, starting from the bottom and working your way backwards, I would start 'switching off' some of the items you use to build your query until it breaks again, thus establishing which part is leading to the error.
Also, I'm not sure what :P10_STMT is doing (are you maybe using this for visiblity of the query created)?

SQL Query (PL/SQL Function Body returning SQL query) doesn't return any row

I have a region with the following type:
SQL Query (PL/SQL Function Body returning SQL query).
In a search screen the users can enter different numbers, separated by an ENTER.
I want to check these numbers by replacing the ENTER, which is CHR(13) || CHR(10) I believe, with commas. And then I can use it like this: POD IN (<<text>>).
It's something like this:
If (:P30_POD Is Not Null) Then
v_where := v_where || v_condition || 'POD IN (''''''''||REPLACE(''' || :P30_POD || ''', CHR(13) || CHR(10), '','')||'''''''''')';
v_condition := ' AND ';
End If;
But the query doesn't return any rows.
I tried to reproduce it in Toad:
select * from asx_worklistitem
where
POD IN (''''||REPLACE('541449200000171813'||CHR(13) || CHR(10)||'541449206006341366', CHR(13) || CHR(10), ''',''')||'''')
==> This is the query that does't return any rows
select (''''||REPLACE('541449200000171813'||CHR(13) || CHR(10)||'541449206006341366', CHR(13) || CHR(10), ''',''')||'''')
from dual;
==> This returns '541449200000171813','541449206006341366'
select * from asx_worklistitem
where pod in ('541449200000171813','541449206006341366');
==> and when I copy/paste this in the above query, it does return my rows.
So why does my first query doesn't work?
Doe anyone have any idea?
Kind regards,
Geert
Message was edited by:
Zorry

Thanks for the help.
I made it work, but via the following code:
If (:P30_POD Is Not Null) Then
v_pods := REPLACE(:P30_POD, CHR(13) || CHR(10));
v_where := v_where || v_condition || 'POD IN (';
v_counter := 1;
WHILE (v_counter < LENGTH(v_pods)) LOOP
v_pod := SUBSTR(v_pods, v_counter, 18);
IF (v_counter <> 1) THEN
v_where := v_where || ',';
END IF;
v_where := v_where || '''' || v_pod || '''';
v_counter := v_counter + 18;
END LOOP;
v_where := v_where || ')';
v_condition := ' AND ';
End If;But now I want to make an update of all the records that correspond to this search criteria. I can give in a status via a dropdownlist and that I want to update all the records that correspond to one of these POD's with that status.
For a region you can build an SQL query via PL/SQL, but for a process you only have a PL/SQL block. Is the only way to update all these records by making a loop and make an update for every POD that is specified.
Because I think this will have a lot of overhead.
I would like to make something like a multi row update in an updateable report, but I want to specify the status from somewhere else. Is this possible?

SQL query (pl/sql function body returning query) performance issue

I create my report in building my sql instruction with ( SQL Query pl/sql function body returning sql query );
My report take more than 20 seconds however if i did a cut and paste with the sql code in TOAD the same sql take 1 second.
To try to discover the source of the problem; i take the sql generated by the function and i create another report ( sql query ) this new report take 2 seconds.
My query is very big 25,000 characters with database link.
What is the difference between SQL-quey and sql-query(pl/sql function body returning sql query)
Thanks
Marc

Marc,
Firstly...don't compare the timings from Toad, since often Toad only fetches the first few records for you (i.e. it pages them).
Secondly....the database link could be a factor here, but without seeing your query it's too hard to say.
Can you post the query somewhere (on a webserver say)?

SQL Query (pl/sql function body returning Sql query)

Hi All,
I have created a region of "SQL Query (pl/sql function body returning Sql query)" type and it is working fine , but when I am migrating(export /import) this application from development to systest environment ,
It gives error for this region :
Error ERR-1101 Unable to process function body returning query.
OK
ORA-06550: line 1, column 52: PLS-00306: wrong number or types of arguments in call to 'FU_TRADE_REPORT_QUERY' ORA-06550: line 1, column 45: PL/SQL: Statement ignored
Any pointer ...why this is happening.
Thanks
Dikshit

If your function is a stored function that is called from within APEX (function body not coded into the app itself), have you made sure that the function has been created and compiles ok prior to installing your apex app.
If there are some dependency issues between other PL/SQL units or database objects that are causing your function not to be compiled, you apex install will fail as you are trying to reference an uncompelled bit of pl/sql.
Let me know how you get on
Regards
Duncan

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

Sql query(PL/SQL function body return SQL query) with in(x,y,z) condition

Hello,
I've set up a region definition of type "SQL Query(PL/SQL function body return SQL query). In my query I make use of an "in" condition. When I populate :P755_INC_BARG_UNIT with a value of 0F (no quotes), I get the correct count. However, when I set :P755_INC_BARG_UNIT to 0F, 0E I get an invalid count. What do I have to set the page item to?
When running the query in TOAD, and setting :P755_INC_BARG_UNIT to the string inside the brackets (0F, 0E) I get the proper count.
The code I use is shown below. Any help would be appreciated,
Alex.
DECLARE
v_sql VARCHAR2(32767);
BEGIN
SELECT count(*) "cnts",
''Faculty data file IDs missing in appt table'' "err_type"
FROM hradmin.et_faculty_salary fs left outer join
hradmin.appointments appt
ON trim(fs.empl_id) = appt.emp_emp
and appt.ear_activ <> ''Z''
and appt.ear_type = ''F''
and (appt.ear_class in (''A'',''B'',''C'',''D''))
and appt.ear_bargunit in ( :P755_INC_BARG_UNIT )
WHERE appt.emp_emp is null
RETURN v_sql;
END;

Alex,
try something like:
DECLARE
v_sql VARCHAR2(32767);
BEGIN
v_sql := <YOUR_SQL_STATEMENT_WITH_P755_INC_BARG_UNIT_IN_IT>;
v_sql := REPLACE(v_sql, ':P755_INC_BARG_UNIT',:P755_INC_BARG_UNIT);
RETURN v_sql;
END; But before doing it read this:
http://asktom.oracle.com/pls/apex/f?p=100:11:0::::P11_QUESTION_ID:210612357425
After reading you will be able to find the best solution yourself.
Lev

SQL Query (PL/SQL function body returning SQL query) Error

I'm an ApEx newbie, not a PL/SQL developer (more of a Web application developer) and I'm getting an error that prevents me from saving some PL/SQL code. I've looked over it all afternoon, but can't tell what's wrong. I may even be trying to do something inappropriately, or really stupid.
The code is below. The error I get is - "Function returning SQL query: Query cannot be parsed within the Builder". Any help is appreciated, and thanks in advance. If you need more details of what I'm trying to do let me know.
= = = = = = =
DECLARE
v_ID NUMBER;
v_SITE_ID NUMBER;
v_SITE_CODE VARCHAR2(15);
v_ADDR1 VARCHAR2(240);
v_CITY VARCHAR2(25);
v_STATE VARCHAR2(150);
v_ZIP VARCHAR2(20);
v_ORG_ID VARCHAR2(10);
BEGIN
IF :G_ORG_ID = '' THEN
SELECT "VENDOR_ID", "VENDOR_SITE_ID", "VENDOR_SITE_CODE", "ADDRESS_LINE1", "CITY", "STATE", "ZIP", "ORG_ID"
INTO v_ID, v_SITE_ID, v_SITE_CODE, v_ADDR1, v_CITY, v_STATE, v_ZIP, v_ORG_ID
FROM "PO_VENDOR_SITES_ALL_V"
WHERE ("VENDOR_ID" = :P4_VENDOR_ID);
ELSE
SELECT "VENDOR_ID", "VENDOR_SITE_ID", "VENDOR_SITE_CODE", "ADDRESS_LINE1", "CITY", "STATE", "ZIP", "ORG_ID"
INTO v_ID, v_SITE_ID, v_SITE_CODE, v_ADDR1, v_CITY, v_STATE, v_ZIP, v_ORG_ID
FROM "PO_VENDOR_SITES_ALL_V"
WHERE (("VENDOR_ID" = :P4_VENDOR_ID) AND ("ORG_ID" = :G_ORG_ID));
END IF;
END;

Denes,
Good question.
Before I answer that question I'll give some detail on the application. That may help too. The application is a supplier search which searches the Oracle vendor tables (po.vendors, po_vendor_sites_all, po_vendor_contacts). The vendor/vendor site relationship is one to many. The site is based on the Org_ID. The supplier search is built to work solo, or to be called by another application. If it is called by another application one of the values passed is the Org_ID, so that only the sites that pertain to the user's org_id are shown. If the appl is called solo the Org_ID is not known, so the SQL should return all sites.
I figured the easiest way to check if the program was running solo or was called was to check the G_ORG_ID value in my PL/SQL that builds the site report. You helped me with that code. (I am hiding buttons by checking if the G_ORG_ID field is null and they display/hide properly.)
So, how is G_ORG_ID populated? It is on Page Zero, and is populated via the URL when the appl is called. (That aspect works great.) If it is called by another application G_ORG_ID is populated and my PL/SQL works. But, if the appl is called solo the field is not populated. When the PL/SQL runs I cannot get it to run the code for when G_ORG_ID is not populated.
I am at the point that I don't know if I need to populate G_ORG_ID in some way when the appl is running solo (kinda tricky, because I need to use that field to determine if it is running solo), or if I need to check it differently in the PL/SQL IF.
I have experimented with both the default value, and have checked for different values in the PL/SQL IF, but nothing works.
Thanks for your help, and let me know if you have any other questions on this matter.
Thanks, Tony

PL/SQL function body returning SQL query - ORA-06502: PL/SQL: numeric or value error

I'm attempting to dynamically generate a rather large SQL query via the "PL/SQL function body returning SQL query" report region option. The SQL query generated will possibly be over 32K. When I execute my page, I sometimes receive the "ORA-06502: PL/SQL: numeric or value error" which points to a larger than 32K query that was generated. I've seen other posts in the forum related to this dynamic SQL size limitation issue, but they are older (pre-2010) and point to the 32K limit of the DNS (EXECUTE IMMEDIATE) and DBMS_SQL. I found this post (dynamic sql enhancements in 11g) which discusses 11g no longer having the 32K size limitation for generating dynamic SQL. Our environment is on 11gR2 and using ApEx 4.2.1. I do not know which dynamic SQL method -- DNS or DBMS_SQL -- ApEx 4.2.1 is using. Can someone clarify for me which dynamic SQL method ApEx uses to implement the "PL/SQL function body returning SQL query" option?
As a test, I created a page on apex.oracle.com with a report region with the following source:
declare
l_stub varchar2(25) := 'select * from sys.dual ';
l_sql clob := l_stub || 'union all ';
br     number(3) := 33;
begin
while length ( l_sql ) < 34000 loop
    l_sql := l_sql || l_stub || 'union all ';
end loop;
l_sql := l_sql || l_stub;
for i in 1 .. ceil ( length ( l_sql ) / br ) loop
    dbms_output.put_line ( dbms_lob.substr ( l_sql, br, ( ( i - 1 ) * br ) + 1 ) );
end loop;
return l_sql;
end;
The dbms_output section is there to be able to run this code in SQL*Plus and confirm the size of the SQL is indeed larger than 32K. When running this in SQL*Plus, the procedure is successful and produces a proper SQL statement which can be executed. When I put this into the report region on apex.oracle.com, I get the ORA-06502 error.
I can certainly implement a work-around for my issue by creating a 'Before Header' process on the page which populates an ApEx collection with the data I am returning and then the report can simply select from the collection, but according to documentation, the above 32K limitation should be resolved in 11g. Thoughts?
Shane.

What setting do you use in your report properties - especially in Type and in Region Source?
If you have Type="SQL Query", then you should have a SELECT statement in the Region Source. Something like: SELECT .... FROM ... WHERE
According to the ERR-1101 error message, you have probably set Type to "SQL Query (PL/SQL function body returning SQL query)". In this situation APEX expects you to write a body of a PL/SQL function, that will generate the text of a SQL query that APEX should run. So it can be something like:
declare
mycond varchar2(4000);
begin
if :P1_REPORT_SEARCH is not null THEN
mycond:='WHERE LAST_NAME like :P1_REPORT_SEARCH ||''%''';
end if;
return 'select EMPLOYEE_ID, FIRST_NAME, LAST_NAME from EMPLOYEES ' ||mycond;
end;
And for escaping - are you interested in escaping the LIKE wildcards, or the quotes?
For escaping the wildcards in LIKE function so that when the user enters % you will find a record with % and not all functions, look into the SQL Reference:
http://download-uk.oracle.com/docs/cd/B19306_01/server.102/b14200/conditions007.htm
(You would than need to change the code of your function accordingly).
If you are interested in escaping the quotes, try to avoid concatenating the values entered by the user into the SQL. If you can, use bind variables instead - as I have in my example above. If you start concatenating the values into the text of SQL, you are open to SQLInjection - user can enter anything, even things that will break your SQL. If you really need to allow users to choose the operator, I would probably give them a separate combo for operators and a textfield for values, than you could check if the operator is one of the allowed ones and create the condition accordingly - and than still use bind variable for inserting the filtering value into the query.

Using Package to produce pl/sql function body returning sql query Report

I have existing code that we want to use in building reports in APEX. We are needing to modify it slightly to handle some new requirements, but would like to use them in reports based upon SQL query (pl/sql function body returning sql query) functionality.
Any suggestions as how to call these in an APEX report region?
Thank you,
Tony Miller
UTMB/EHN

Hi Tony-
I am also v new to Apex and you may have answered a question I was in search of. I, however, now have a couple more. First a bit of background-- Like in your situation, my college has a lot of existing code (400 +) that we need to get into Apex. The majority of this canned code contains one/both: 1) many lines, sometimes containing multiple select statements 2) imbedded create table & view statements (temp user owned). Up until reading your post, I was unable to figure out an easy way of getting this existing code into the product. Thanks. Now the questions, do you know how I would go about dealing with the create tables/views. I've read some posts on this forum which suggest temporary tables being unstable in this environment. Also, do you know if there's a size limitation when passing sql code via a function?
As you may/may not be able to tell, I'm a bit lost right now... so any info you can provide would be appreciated. Thanks.
Don

Region source (PL/SQL function body returning SQL query)

Hi, guys.
Here is what i try to do:
Create a region of type SQL Query (PL/SQL function body returning SQL query). In the source area i tried to put this:
DECLARE
v_new VARCHAR2(10);
v_SQL varchar2(32000);
BEGIN
v_new := :P102_HDN_NEW;
-- htp.p(v_new);
IF v_new = 'N-Set' THEN
v_SQL := 'select ' ||
ELSIF v_new = 'Y-Set' THEN
v_SQL := 'select ' ||
END IF;
RETURN v_SQL;
END;
And here is the reply from APEX:
1 error has occurred
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. The query can not be parsed, the cursor is not yet open or a function returning a SQL query returned without a value.
Now.
1. Variable is set with the right value.
2. Each statement (separately) returns SQL that works with no problems
3. Problem occures if i try to put IF statement around the SQL creation.
4. If i select "Use Generic Column Names (parse query at runtime only)" instead of "Use Query-Specific Column Names and Validate Query" then the script returns SQL properly, however report's column names are set to Col1, Col2,Col3 ......
Thnks in advence
Mike

OK. Here is enire statement:
DECLARE
v_new VARCHAR2(10);
v_SQL varchar2(32000);
BEGIN
v_new := :P102_HDN_NEW;
htp.p(v_new);
IF v_new = 'N-Set' THEN
v_SQL := 'select ' ||
'APEX_ITEM.DISPLAY_AND_SAVE(10,c.sdescr) descr, ' ||
'APEX_ITEM.DISPLAY_AND_SAVE(12,DECODE(ld.level,''All'', ''All Categories'',ld.level)) level, ' ||
'apex_item.checkbox(1, ld.opt_in_auto_flag, decode(ld.opt_in_auto_flag,NULL,''disabled'',''Y'',''checked'')) auto_in, ' ||
'apex_item.checkbox(2, ld.opt_in_manual_flag, decode(ld.opt_in_manual_flag,NULL,''disabled'',''Y'',''checked'')) manual_in, ' ||
'apex_item.checkbox(3, ld.opt_out_auto_flag, decode(ld.opt_out_auto_flag,NULL,''disabled'',''Y'',''checked'')) auto_out, ' ||
'apex_item.checkbox(4, ld.opt_out_manual_flag, decode(ld.opt_out_manual_flag,NULL,''disabled'',''Y'',''checked'')) manual_out, ' ||
'DECODE(c.code, ''NMBR'', NULL,''Change to '' || DECODE(ld.level,''All'',''Categories'',''All Categories'')) link_change, ' ||
'APEX_ITEM.DISPLAY_AND_SAVE(11,c.code) code ' ||
'from ' ||
'tbl1 c, ' ||
'tbl2 ld ' ||
'where c.code = ld.code ' ||
'and c.type = ''TYPE1'' ' ||
'and c.active = ''Y'' ' ||
'order by c.sorting ';
ELSIF v_new = 'Y-Set' THEN
v_SQL := 'select ' ||
'APEX_ITEM.DISPLAY_AND_SAVE(10,c.sdescr) descr, ' ||
'APEX_ITEM.DISPLAY_AND_SAVE(12,''All Categories'') level, ' ||
'apex_item.checkbox(1, c.option_1, decode(c.option_1,NULL,''disabled'',''Y'',''checked'')) auto_in, ' ||
'apex_item.checkbox(2, c.option_3, decode(c.option_3,NULL,''disabled'',''Y'',''checked'')) manual_in, ' ||
'apex_item.checkbox(3, c.option_2, decode(c.option_2,NULL,''disabled'',''Y'',''checked'')) auto_out, ' ||
'apex_item.checkbox(4, c.option_4, decode(c.option_4,NULL,''disabled'',''Y'',''checked'')) manual_out, ' ||
'DECODE(c.code, ''AAA'', NULL,''Options by AAA'') link_change, ' ||
'APEX_ITEM.DISPLAY_AND_SAVE(11,c.code) code ' ||
'from ' ||
'tbl1 c ' ||
'where 1 = 1 ' ||
'and c.type = ''TYPE1'' ' ||
'and c.active = ''Y'' ' ||
'order by c.sorting ';
END IF;
RETURN v_SQL;
END;
If i put just this
DECLARE
v_new VARCHAR2(10);
v_SQL varchar2(32000);
BEGIN
v_new := :P102_HDN_NEW;
htp.p(v_new);
v_SQL := 'select ' ||
'APEX_ITEM.DISPLAY_AND_SAVE(10,c.sdescr) descr, ' ||
'APEX_ITEM.DISPLAY_AND_SAVE(12,DECODE(ld.level,''All'', ''All Categories'',ld.level)) level, ' ||
'apex_item.checkbox(1, ld.opt_in_auto_flag, decode(ld.opt_in_auto_flag,NULL,''disabled'',''Y'',''checked'')) auto_in, ' ||
'apex_item.checkbox(2, ld.opt_in_manual_flag, decode(ld.opt_in_manual_flag,NULL,''disabled'',''Y'',''checked'')) manual_in, ' ||
'apex_item.checkbox(3, ld.opt_out_auto_flag, decode(ld.opt_out_auto_flag,NULL,''disabled'',''Y'',''checked'')) auto_out, ' ||
'apex_item.checkbox(4, ld.opt_out_manual_flag, decode(ld.opt_out_manual_flag,NULL,''disabled'',''Y'',''checked'')) manual_out, ' ||
'DECODE(c.code, ''NMBR'', NULL,''Change to '' || DECODE(ld.level,''All'',''Categories'',''All Categories'')) link_change, ' ||
'APEX_ITEM.DISPLAY_AND_SAVE(11,c.code) code ' ||
'from ' ||
'tbl1 c, ' ||
'tbl2 ld ' ||
'where c.code = ld.code ' ||
'and c.type = ''TYPE1'' ' ||
'and c.active = ''Y'' ' ||
'order by c.sorting ';
RETURN v_SQL;
END;
it works fune...

PL/SQL function body return sql query, no data found problem

Hi all,
we are trying to build a dynamic report based on item selection by user. we are using SQL Query (PL/SQL function body returning SQL query). However when a user change the item and submit the page . The following error appears.
ORA-01403: no data found.
our query is so simple
declare
l_query varchar2(30000) default 'select id from chw';
begin
if(:P11_PARA=1) then
l_query:='select name from chw';
end if;
return l_query;
end;
any quick help please.

Hello Mike,
I tried it, the problem still exists.
ORA-01403: no data found
my new code is
declare
l_query varchar2(30000) default 'select id from chw';
begin
if (nvl(TO_NUMBER(:P11_PARA),0) = 1) then
l_query:='select name from chw';
end if;
return (l_query);
end;
note, there is no process in this page.
Edited by: M.Jabr on Oct 14, 2009 6:13 AM

How to use a select list value in a PL/SQL function body returning SQLquery

Hi Friends,
I have a select list P6_TEST with values 'nav' anf 'jyo'. I am trying to create a report using "SQL Query (PL/SQL
function body returning SQL query)". In my report query can i check if P6_TEST='nav' and do something like the
code shown below.How can i do that.
DECLARE
v_sql VARCHAR2(3000);
BEGIN
IF :P6_TEST = 'nav' THEN
v_sql :=
'SELECT
* from department';
........................Thanks,
Nav

Nav:
What you have should work. Give it a go. Post back if you run into issues.
Varad

Error while calling the function which returns SQL Query!!!

Hi,
I have a Function which returns SQL query. I am calling this function in my APEX report region source.
The query is dynamic SQL and its size varies based on the dynamic "where clause" condition.
But I am not able to execute this function.It gives me the following error in APEX region source.
ORA-06502: PL/SQL: numeric or value error: character string buffer too small
Even in SQL* Plus or SQL developer also same error .
The length of my query is more than 4000. I tried changing the variable size which holds my query in the function.
Earlier it was
l_query varchar2(4000)
Now I changed to
l_query varchar2(32767).
Still it is throwing the same error.
Can anybody help me to resolve this.???
Thanks
Alaka

Hi Varad,
I am already using 32k of varchar2. Then also it is not working.
It is giving the same error. I think there is something to do with buffer size.
My query size is not more than 4200. Even if i give 32k of varchar2 also buffer is able to hold only 3997 size of the query only.
Error is
ORA-06502: PL/SQL: numeric or value error: character string buffer too small
Tried CLOB also. It is not working.
Any other solution for this.
Thanks
Alaka

Error in report when executing pl/sql function body returning sql query.

Hi,
I have used the pl/sql function body returning sql query for creating a report. I have created a datepicker(
P10_TASK_DATE) which can be submitted.The code is as below
DECLARE
v_sql varchar2(3000);
BEGIN
if :P10_TASK_DATE is not null THEN
v_sql:='select
* from tasks';
return v_sql;
else
v_sql:='select * from discovery';
return v_sql;
END IF;
END;if the date field is empty "select * from discovery" is executed and report is getting generated. But when we give a
date using date picker the page is submitted and i get "report error: ORA-01403: no data found" even
though the "tasks" table has data in it. Plz help
Thanks,
TJ

hi
Please try this
1. Create 2 region
1st region source=
select * from tasks'
go to the tab -> condition =
item NOT NULL
EXpression1 =:P10_TASK_DATE
this will run whenever the item have any date
2. open your 2 nd region source code= select * from discovery
put the condition
item is NULL
EXpression1 =:P10_TASK_DATE
thanks
Mark Wyatt

Querying PL/SQL function which returns SYS_REFCURSOR

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