Prevent a region source from executing

I have a SQL Query region and I do not want the source code to run when I arrive on the page. (I want to ask for a parameter on the page and then run the source)
Message was edited by:
Bob Breuning

You set a condition for the region:
you can set the request when you branch to the page and set the condition to "request != Expression1". Then you change the request to Expression1, after the parameter is entered, in order to show the region.

Similar Messages

Prevent/block some SQL from executing in Database

Hi Everybody,
we are working on oracle 10g release 1 on Linux.
we are in the process of identifying some badly written queries.
we identified such queries from trace. we want to trace back from where it is coming.
since there are multi tiers in the system, we are not able to map the queries to application user and there is only one Database user and we are searching in the darkness.
We want to prevent these queries from execution. so that somebody will get back.
Any suggestions/ideas ?
Thank you.

as indicated by LC, i can find out the query again getting fired and can have a job to kill
the session. I don't think this will work. In a n-tier environment you're probably using connection pooling, so the same session is probably used by any number of real users. Killing the session isn't go to stop the app server handing out a new connection to whoever is running these queries.
You are looking for a technical solution to deal with what is really a political issue. You need to start talking to your users or possible the developers, depending on whether the offending SQL is an app query or a freestyle SQL*Plus type thing. If you have only a few "bad" queries then it ought to be possible to at least guess where the source is and arrange a quiet chat.
Alternatively, just live with it until such a point as performance gets really bad. Then throw a hissy fit, take the database down and refuse to bring it back up until you get the head(s) of the offender(s) on a silver platter or the application developers put proper authentication in place. Whichever is easier.
This is a serious problem, not from a performance point of view but from a legal perspective. I don't what your business is, or the exact situation in Brazil, but increasingly audit and compliance issues are rising up the IT agenda. People can be abusing your database in any number of ways for any sort of nefarious purpose and you have no idea who is doing what. That's bad.
Cheers, APC

SQL report region source to call a pl/sql function using DB link

Hi - I have a pl/sql function fn_dbtype(id NUMBER) defined in database X. The pl/sql function executes couple DML statements and returns a string (a SELECT query). I am able to call this function using SQL Plus (Connected to Database X) as below and it works fine:
declare
vSQL VARCHAR2(100);
begin
vSQL := fn_dbtype(1);
end;
The DML operations completed fine and vSQL contains the "Select" query now.
In APEX:
I am trying to create a SQL report in APEX using SQL query(PL/SQL function returning a sql statement) option. I am trying to figure out what to put in the region source so that the output of the "Select" query is displayed in the report.
Moreover APEX is hosted in a different database instance. So I would need to call this pl/sql function using a DB Link.
Please let me know what I need to put in the region source to execute the pl/sql function which returns the "Select" query thereby displaying the query output in the report. Thanks.
Edited by: user709584 on Mar 19, 2009 2:32 PM
Edited by: user709584 on Mar 19, 2009 2:34 PM

try something like this:
return fn_dbtype(1)@dblink;

Get SQL Query from the Region Source

Hi,
The below query gives me the region source code,
SELECT region_source into p_sql_stmt
FROM apex_application_page_regions
WHERE region_id = 01129836282 AND
page_id = 54 AND
application_id = 215;
Initially I use to have only the SQL region source code as mentioned below , So using the above query i use to pass the sql code to p_sql_stmt
SELECT PROJECT_ID,EMPLOYEE_ID,EFFECTIVE_DATE FROM AR_V_ADDRESS_HISTORY WHERE PROJECT_ID = :P51_PROJECT_ID
Now the changes what i did in the page region source is i am using a PLSQL return query which is mentioned below
declare
qry varchar2(32000);
begin
qry := ' SELECT PROJECT_ID,EMPLOYEE_ID,EFFECTIVE_DATE';
for c1 in ( SELECT * FROM AR_ADDRESS_TYPE)
loop
qry := qry ||
' , GET_ADDRESS_LINE_1(PROJECT_ID,EMPLOYEE_ID,' || c1.address_type_id || ' ,TO_DATE(EFFECTIVE_DATE)) "' || c1.name ||'_ADDRESS_TYPE_1"';
qry := qry ||
' , GET_ADDRESS_LINE_1(PROJECT_ID,EMPLOYEE_ID,' || c1.address_type_id || ' ,TO_DATE(EFFECTIVE_DATE)) "' || c1.name ||'_ADDRESS_TYPE_2"';
end loop;
qry := qry || ' FROM AR_V_ADDRESS_HISTORY
WHERE
PROJECT_ID = :P51_PROJECT_ID ';
return(qry);
end;
If i execute the above code in the with dbms_output.put_line in the SQL developer or TOAD it prints the sql query which i wanted, Since i am using this in a apex page i need to get the SQL code from the apex page.
Can any one please suggest me how to get this sql code using the above plsql code.
Please suggest me in this issue
Thanks
Sudhir

One way to get the sql statement is
Create a global variable in the package spec where your function returns sql statement and assign the final sql statement to the package spec variable before the return.
Write a wrapper function to return the stored sql statement value.
Example code below:
create or replace package xx_test_pkg as
g_sql_stmt CLOB;
function get_sql() return clob;
function get_stored_val() return clob;
end;
create or replace body package xx_test_pkg as
function get_sql return clob ..
v_sqlstmt clob;
begin
v_sqlstmt := 'select * from emp';
-- assign to global variable before returning the value
g_sql_stmt := v_sqlstmt;
return v_sqlstmt;
end;
function get_stored_val() ....
begin
return g_sql_stmnt;
end;
end;

An error prevents the Change Management Upgrade script from executing

I have Warehouse Builder 10g on a database 10g R1.
On a server linux I have the repository, and on other server (Sun 5.9) I have runtimes for production.
I want execute an upgrade deploy action on one object but I get this error:
An error prevents the Change Management Upgrade script from executing successfully. We strongly advise that this Upgrade is UNDONE and the problem is investigated. Data loss may occur if you accept this Upgrade
Any idea?
Thanks,
Fernando.

I review the installation, it was made with a diferent user that database, I get same permission, restart runtimes service and problem was resolved.
Fernando.

How to prevent the browser from executing the old version of js file...

Dear sirs,
I have a JSP page that includes a javascript file as given below,
<script type="text/javascript" src="../scripts/validation.js"></script>
Some times modification is needed in this included script file. After the modification, when I load the JSP page in the browser,
the old copy of the script file, which was not modified is getting executed. by the browser.
I would like to know whether any options are availabe in javascript to prevent the browser from executing the old copy that has already downloaded to the temperary interner folder(from caching)and use the modified version available with the new response...
Thank you,
Sudheesh K S

Dear sir,
Thakyou very much for your comment.
I tried this, By doing thisThe .html page of the response will be deleted. But the javascript file will not be removed. It will be remail there.
This lead me to the idea to think about javascript. I heard that some commands are there in javascript like cache ="NO" but not sure. I searched in the net but no favourable result found...
Thank you,
Sudheesh....

Problem with SQL query region source containing OLAP clauses

Hi team,
I believe I found a bug when HTMLDB validates the SQL Query in a report region.
My query includes an ORDER BY clause within a windowing function and HTMLDB refuses to accept the source owing to the presence of the ORDER BY and the column heading sort preference.
Clearly the order-by in a window function has little to do with the column heading sort, but this error prevents me from updating the conditional display item in the page definition.
Note also that the page was imported smoothly from the 1.5 version, so probably the region source is not checked at that time, but only when you update it "manually".
So, in the end, if I don't change anything the page works because the sql query is assumed to be correct but unfortunately I need to change the condition and I cannot.
The problem shows up in page 126 of app 21670, SQL query region.
Bye,
Flavio
PS: may be I can work around this by using the pl/sql function returning the sql query.

Flavio,
We're aware of this problem. For now, your workaround is described in this thread:
HTMLDB 1.6 and "order by" in analytic functions
Sergio

Region Source - Dynamic Where Clause

I cannot find anyway to call a function to dynamically generate a where clause for a SQL Query for the region source. For a given set of html text input types. The where clause builds is build based on the populated values of the textfields, if they are null then it excludes it from the where clause.
For example:
Select a,b,c,d,e,f
from tablename
where function_build_where(&CUSTOMER_NAME., &POSTCODE., &FNAME.)
I keep on getting an invalid relational operator.
If I execute the function directly it returns the correct statement that I want.
Any help will be great
Thanks
Graeme

Losing my marbles !
I am really stuck here. It makes sense but I cannot get this to work. I have written a very basic example. I keep getting this error message:
ORA-06550: line 5, column 1: PLS-00372: In a procedure, RETURN statement cannot contain an expression ORA-06550: line 5, column 1: PL/SQL: Statement ignored
Debug:
1: begin
2: declare
3: q varchar2(2000) := '';
4: begin
5: q:= 'select PB_ID, PB_NAME from PB';
6: return q;
7: end;
8: end;
Seems like apex wraps a begin end.
Here is the code:
declare
q varchar2(2000) := '';
begin
q:= 'select PB_ID, PB_NAME from PB';
return q;
end;
Is there a way to simply just call a pl/sql function or sp?
e.g. Region Source = GetPBData()
Using dynamic PL/SQL opens up another can of worms as one cannot pre-format any fields, does this mean one has to use the API to control the length of columns etc.
Many thanks
Regards
Graeme

How to retrieve report region source statement programmatically?

Hi all,
I have several report regions in an apex application each
of type "PL/SQL function body returning SQL query"
and of same structure like:
bq. declare \\ stmt varchar2(32767); \\ ... \\ begin \\ /* some stuff preparing sql query string */ \\ stmt := 'select' || ' a,b,c' || 'from table'; \\ return stmt; \\ end;
Now I need to retrieve the region source returned sql statement programmatically.
The region source is stored in apex view "apex_application_page_regions.region_source".
But what is the best way to retrieve the SQL statement value, by executing
the anonymous pl/sql block OR how does it work in apex internally?
An "execute immediate +region_source+ ... " approach does not work due to PLS-00372.
Any hints?
Regards,
Matthias

Dear Matthias,
an interesting problem you raise here. The solution is to create a function from the region source, call that function and then do something useful with the result.
Let's suppose your region source is :
declare v_text varchar2(100); begin return(''select * from emp''); end;
- put this text instead of the first declare
declare
v_statement varchar2(4000) := '
declare
function test return varchar2 is
- put this code behind the source:
begin
dbms_output.put_line(test);
end;';
begin
execute immediate v_statement;
end;
Now you have created a anonymous PL/SQL block that can be performed. The whole code looks like:
declare
v_statement varchar2(4000) := '
declare
function test return varchar2 is
begin return(''select * from emp''); end;
begin
dbms_output.put_line(test);
end;';
begin
execute immediate v_statement;
end;
Instead of the put_line you might set a package variable, so that you can use the result in another way,
good luck, DickDral

Can I use an IF Statement in a Region Source

Hello, Im using Apex 3.x. I have a standard report page whose Region Source is a simple select statement..... SELECT xyz FROM...WHERE
I need to add an IF statement to this Region Source, but when I do I get an error - Query cannot be parsed within the Builder.
IF :P2_FILTER = 'A' THEN
SELECT abc FROM...WHERE
ELSIF :P2_FILTER = 'B' THEN
SELECT abc FROM...WHERE
END IF;
The columns selected are the same in both scenarios. Is there any way to add an IF statement to the region source?
Thank
you

I guess Scott is suggesting creating 2 regions (with different source query ) , then define the codition for each one. Ex. for region 1 >> condition >> plsql expression >> :P2_FILTER = 'A'
for region 2 >> condition >> plsql expression >> :P2_FILTER = 'B'
Hope this helps,
Sam
Edited by: Sam_06 on Aug 17, 2010 12:20 PM

Application Item Not Working as Bind Variable in Region Source

I've created an application variable - APP_AC_CODE - a value for which - PA1 - I set as part of the column link on page A that branches to page B.
I use APP_AC_CODE as part of a region title on page B - &APP_AC_CODE. Parameters - which evaluates successfully to 'PA1 Parameters'.
However when I try to use APP_AC_CODE on the same page as part of the SQL query that drives the report for that region it fails to retrieve any records.
If I set the region source to:
SELECT idi FROM v_parameters WHERE aircraft_code = :APP_AC_CODE ;
then it fails but if I explicitly state the where clause:
SELECT idi FROM v_parameters WHERE aircraft_code = 'PA1' ;
then it works just fine and retrieves the records as expected.
If I check the session state then the right value is assigned to APP_AC_CODE; if I check debug then it shows the right value - binding: ":APP_AC_CODE"="APP_AC_CODE" value="PA1". Also, it displays fine as a substitution string.
I'm very confused. I'll be very grateful if someone can shed a little light. I expect I'm doing something stupid - new user and all that - but I haven't got a clue what that is.

Thanks for the reply Scott, but unfortunately I can't upload the app for business reasons. I appreciate that might make it impossible for you to diagnose the problem.
I don't know if I'm making progress with the problem but I've tried adding a hidden page item, setting that value from page A and using it from page B with the same results. Check the session state, the debug messages, or use it as a substitution variable and the right value is there.
I then tried setting the value of the page item with the value of the application item and (according to session and debug) the right value ends up in the page item. Still didn't work though.
I then created a new page (using the sql report wizard in case I was doing something wrong manually) and tried using the application item in the same way with the same problem.
Given that no records are being returned I assume that the database server doesn't care for the SQL query it sees. Is there a way of seeing what this is? When I look at the debug messages, all I see is 'parse query' and 'binding' messages. Any way I can see what the database server eventually sees?
Matt

How to get save result from EXECUTE from a dynamic SQL query in another table?

Hi everyone,
I have this query:
declare @query varchar(max) = ''
declare @par varchar(10)
SELECT @par = col1 FROM Set
declare @region varchar(50)
SELECT @region = Region FROM Customer
declare @key int
SELECT @key = CustomerKey FROM Customer
SET @query = 'SELECT CustomerKey FROM Customer where ' + @par + ' = '+ @key+ ' '
EXECUTE (@query)
With this query I want get col1 from SET and compare it to the column Region from Customer. I would like to get the matching CustomerKey for it.
After execution it says commands are executed successfully. But I want to save the result from @query in another table. I looked it up and most people say to use sp_executesql. I tried a few constructions as sampled and I would always get this error:
Msg 214, Level 16, State 2, Procedure sp_executesql, Line 12
Procedure expects parameter '@statement' of type 'ntext/nchar/nvarchar'.
So the output should be a list of CustomerKeys in another table.
How can I save the results from EXECUTE into a variable? Then I assume I can INSERT INTO - SELECT in another table.
Thanks

CREATE TABLE Customer
(CustomerKey INT , Name NVARCHAR(100));
GO
INSERT dbo.Customer
VALUES ( 1, N'Sam' )
GO
DECLARE @query nvarchar(max) = ''
declare @par varchar(10) = 'Name',
@key varchar(10) = 'Sam'
CREATE TABLE #temp ( CustomerKey INT );
SET @query =
insert #temp
SELECT CustomerKey
FROM Customer
where ' + @par + ' = '''+ @key+ ''' '
PRINT @query
EXEC sp_executesql @query
SELECT *
FROM #temp
DROP TABLE #temp;
DROP TABLE dbo.Customer
Cheers,
Saeid Hasani
Database Consultant
Please feel free to contact me at [email protected] as well as on Twitter and Facebook.
[My Writings on TechNet Wiki] [T-SQL Blog] [Curah!]
[Twitter] [Facebook] [Email]

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...

How to prevent iTunes for Windows from "Updating iTunes Library"? (Library is on a NAS and managed by iTunes for Mac. Now getting update wars between Mac and Windows versions of the player.

How to prevent iTunes for Windows from "Updating iTunes Library"?
My library is on a NAS and managed by iTunes on a Mac. I can connect from wife's Windows laptop using iTunes for Windows but every time I do, it Updates iTunes Library. Next time I log in from my Mac it Updates iTunes Library in return. It appears I'm experiencing "Update Wars" between the Mac and Windows versions of iTunes. I would like to allow my wife to stream iTunes songs to her new laptop but I don't want any updates from this source... prefer to manage the library from my Mac and not allow Windows to do any thing other than listen to existing playlists.
Thanks for any help/suggestions.

Connect the PC to the library on the NAS. Wait while "updated".
Under Edit > Preferences > Advanced make sure the media folder is correctly pointed at the media folder on the NAS. If not correct, close iTunes, wait a few moments, then open iTunes again.
Close iTunes on the PC. Do not open iTunes on the Mac.
Copy the library files, iTunes Library.itl, iTunes Library Extras.itdb, iTunes Library Genius.itdb, sentinel and the folder Album Artwork into an empty iTunes folder on the PC, for example C:\iTunes.
Click the icon to start iTunes and immediately press and hold down SHIFT. Keep holding until prompted to choose or create a library. Click choose and browse to the copied .itl file, e.g. C:\iTunes\iTunes Library.itl
The library should now work properly on the PC, however check the setting for the media folder. If needs be correct, close iTunes and reopen.
Open iTunes on the Mac. It will update again, but that should be last time.
tt2

Using CASE WHEN THEN in dynamic Region Source area

Hi all,
I've been knocking my head around on this one for a while. Hope someone can show me some guidance. So far, the SQL Query in the Region Source works ok except after the THEN ''||'LINK'||'' . All text between the single quotes displays, and not just the hyperlink LINK. (My goal is to this simple test working, then go back an substitute in APP_ID, Page#, SESSION variables.) But I'm stuck with this problem. Searched the forum but this is as far as I got. Below is the code I'm using in the Region Source area. Perhaps a region attribute setting is needed but I'm unsure. Thanks for any assistance. -Mike
select DISTINCT
    AWARD,
    CASE
    WHEN WINNER_NAME = 'India Retail Support Team'
   THEN '<A HREF="http://www.hotmail.com">'||'LINK'||'</A>'         *----------------HREF link (LINK) is working fine here but doesn't work ok in Region Source.
    ELSE WINNER_NAME
    END WN,
        GBU_WINNER,
        DORDER
from   GBUSERVICEPACESETTERAWARDS
where FY = '2012'
and TYPE = 'Service Award'

>
As previously requested, please update your forum profile with a real handle instead of "user10734329".
I've been knocking my head around on this one for a while. Hope someone can show me some guidance. So far, the SQL Query in the Region Source works ok except after the THEN ''||'LINK'||'' . All text between the single quotes displays, and not just the hyperlink LINK.Not clear from this what the problem is. It appears to me that LINK is all of the "text between the single quotes". What do you mean by "all text"? (An example on apex.oracle.com is a good way to resolve such ambiguities...)
The usual cause of unexpected results when the separation of concerns is breached and HTML is directly generated in report queries is having the Display Text As report column attribute wrongly set. Ensure it is Standard Report Column rather than the default Display as Text (escape special characters).

Prevent a region source from executing

Similar Messages

Maybe you are looking for