Using substitution string

I know you can refer to a substitution string by doing *&string.*
Can you refer to it by doing *:string* also
Howard

Howard
You can use the :item_name syntax as a bind variable in Sql and pl/sql within an APEX application.
APEX substitution strings are described here http://download.oracle.com/docs/cd/E14373_01/appdev.32/e11838/concept.htm#insertedID6
varad

Similar Messages

How to reference the Instance name using Substitution string or SQL

All:
We have an Application that will be replicated in multiple Apex instances and would like to display the current Oracle Apex Instance name ( Similar to the &APP_USER. on the Welcome portion of the page ) .
Is there a substitution string for this ?
We plan on using a Show/Hide region on the splash page titled [About], that when clicked displays an HTML region with the subsitution strings.
If no substitution strings, can someone help with an SQL that returns the Instance name ?
Thanks for all the help.
Aubrey Fernandes

Aubrey Fernandes wrote:
I currently have 3 URLs to get to my Development, QA and Production servers & will have many more production servers with different Application Ids.
Development = http://canqa101:7777/pls/ngcrmd01/apex
QA = http://canqa101:7777/pls/ngcrmq01/f?p=100:1
Production = http://cancs105:7777/pls/ngcrmp01/f?p=100:1
What I need are the portions before the final forward slash ( canqa101:7777/pls/ngcrmd01 ) which I assumed is the Oracle Apex instance.That information is determined by the web server configuration (e.g. the DADs when using OHS) rather than through APEX itself. There are no built-in substitution strings for this. Create an application item and an On New Instance (new session) computation to set the value using the function<tt>owa_util.get_cgi_env</tt> function to get the CGI environment variables <tt> HTTP_HOST</tt> and <tt>SCRIPT_NAME</tt>. You can then reference the value in the region using substitution string syntax.

Can't find the variable used in Apex using Substitution String #

Hi,
Someone put in a substitution string for a user defined variable. #variable#. I can't find it. Looked through the shared components. Any advice? Thanks.

Export your application and use a good text editor to search on that string and you will find it if it is there.
Denes Kubicek
http://deneskubicek.blogspot.com/
http://www.opal-consulting.de/training
http://apex.oracle.com/pls/otn/f?p=31517:1
-------------------------------------------------------------------

Substitution strings in chart sql query

Hi Guys,
I am creating line charts and bar charts based on a query in HTML DB 1.5. I am using substitution strings in the query. Though I can use substitution strings in the line chart, I cannot do it in the bar chart. I am using almost the same sql query in both line and bar charts.
The sql query in line chart is
SELECT null, TO_CHAR(t1.extract_date, 'W-MON-YYYY') extractdate,
MIN_OF_AVERAGES(AVG(&P40_METRICS.),:P40_REGION_LIST,:P40_SUBREGION_LIST,NULL,:P40_METRICS,'ind') orgid
FROM ind t1,geography t2
WHERE t1.country_id = t2.country_id(+)
AND t2.region_name like
DECODE(:P40_REGION_LIST,'ALL REGIONS','%',:P40_REGION_LIST)
AND t2.subregion_name like
NVL(:P40_SUBREGION_LIST,'%')
GROUP BY TO_CHAR(extract_date, 'W-MON-YYYY')
order by to_date(extractdate,'DD-MON-YY')
The sql query in bar chart is
SELECT null, TO_CHAR(t1.extract_date, 'W-MON-YYYY') extractdate,AVG(&P40_METRICS.) orgid
FROM ind t1,geography t2
WHERE t1.country_id = t2.country_id(+)
AND t2.region_name like
DECODE(:P40_REGION_LIST,'ALL REGIONS','%',:P40_REGION_LIST)
AND t2.subregion_name like
NVL(:P40_SUBREGION_LIST,'%')
GROUP BY TO_CHAR(extract_date, 'W-MON-YYYY')
order by to_date(extractdate,'DD-MON-YY')
The min_of_averages function in the line chart query is some function I am calling. Even if I cut-paste the line chart query in the bar chart I get the error.
The substitution string which is giving the problem is "&P40_METRICS."
The error I am getting is
Query cannot be parsed, please check the syntax of your query. (ORA-00909: invalid number of arguments)
The only difference I see is that line chart query is inside a series and bar chart is not, does this make a difference??? Or is it because I am using the substitution string in choosing the column??? Please help!!!!
Thanks,
Swaroop

Swaroop,
You might be using an HTML bar chart and an SVG line chart, I can't tell, but their implementations differ. You won't be able to use a substitution string to replace a column name in the query in the situation you found, you'd have to figure out a way to construct the query string before it gets executed and I'm not sure the chart pages will let you do that.
Scott

Substitution String in URL

I would like to use Substitution String in url,
I defined Substitution String Name => #APPSERVERNAME#
and its value as => 100.77.33.22
and URL link as
http://&APPSERVERNAME.:7777/pls/apex/f?p=108:72:&SESSION.:::::
but the like is like
http://:7777/pls/apex/f?p=108:72:&SESSION.:::::
has anyone an idea?
regards

Hello,
In Shared Components - Definition - Substitution String: HOST - value: 100.77.33.22
Reference it like &HOST.
So I guess if you take out the # it should work.
Regards,
Dimitri
-- http://dgielis.blogspot.com/
-- http://apex-evangelists.com/
-- http://apexblogs.info/

Can substitution strings be changed at runtime?

I need to deploy my application such that it can run with different sets of tables, which are otherwise identical in design.
My client has multiple versions of the tables. For instance, they may have
CHICAGO.EMPLOYEES
CHICAGO.DEPARTMENTS
or
LONDON.EMPLOYEES
LONDON.DEPARTMENTS
or even
CHICAGO.EMPLOYEES_V01
CHIGAGO.DEPARTMENTS_V01
I can of course create a separate installation for each one of these, but this is neither elegant nor efficient.
Is there I way I can have a UNIQUE APEX application installation and then use substitution strings to switch between variants?
Ideally, I should modify the LOGIN screen adding two new fields, Location and Version and then designate the tables as
$LOCATION..EMPLOYEES_$VERSION.
$LOCATION..DEPARTMENTS_$VERSION
This means that I need to retrieve the two variables at login and then use them to help point to the right tables.
I know about substitution strings, but as far as I am aware they can only be changed statically during the development. Is it possible to change them at runtime? If yes, how?
I would greatly appreciate any response.
Mike

Hello Mike,
If your location is equivalent to the parsing schema you can use the APEX built-in substitution string *#OWNER#*.
You still need to resort to Peter’s advices where dynamic table names are concerned. Bear in mind that in this case, you won’t be able to use the APEX built-in DML processes, and you’ll need to write your own fetch/insert/update/delete processes, which might be a lot of work. Working in a multi-user environment adds the complexity factor of concurrency control (lost updates).
Regards,
Arie.
&diams; Please remember to mark appropriate posts as correct/helpful. For the long run, it will benefit us all.
&diams; Author of Oracle Application Express 3.2 – The Essentials and More

Can substitution strings be used for table name references?

Hi,
I was wondering if it's possible to use substituion strings for table names in SQL queries. This would allow for me to edit all references to a table at one location. For instance, if a table name or dblink changed, I could edit the substitution string or application item to ensure all the queries reference the new table.
For example:
select * from &table1.
table1 would be the substitution string for the actual table name
I know this is possible if I used a pl/sql function returning a query, but I would much rather use a substition string in a SQL query.
Thanks in advance.
Brian

i think not
because how create the fields of * in this case
in the other because all is dynamic, i think that you obtain only an error

Footer navigation using pl/sql - substitution strings

Hi
I want to make a footer navigation (a BLAF like footer with the same captions and links that appear in the Tabs and the Navigation Bar) using a PL/SQL region. The code I want to use should work for any HTML DB application.
The procedure could be defined like this:
PROCEDURE prb_footer_navigation( p_application_id VARCHAR2
, p_page_id VARCHAR2
, p_session_id VARCHAR2);
p_application_id will be used to get the caption and links of the specific application and p_page_id will be used to know which tab is selected.
I'm using this query in the procedure:
SELECT t.tab_text caption
, t.tab_target link
, t.tab_sequence num
FROM flows_010600.wwv_flow_toplevel_tabs t
WHERE t.flow_id = p_application_id
ORDER BY t.tab_sequence
(the user has been granted select from flows_010600.wwv_flow_toplevel_tabs)
The problem is:
tab_target has substitution strings like '&XXX.' or '&PX_XXX.', so how can I get the real link with resolved substitution strings using pl/sql?
Something like function_resolve_string(p_string, p_session_id) would be appreciated...
Thanks in advance!

A.U.,
Have you considered looking at how the navigation bar gets onto your page by examining the page template? You'll find something like this in the body section:
<table width="100%" cellpadding="0" cellspacing="0" border="0" summary="">
 <tr>
 <td valign="top" class="t1Logo">#LOGO#</td>
 <td align="right" valign="top">#NAVIGATION_BAR#</td>
 </tr>
</table>Just copy and paste that onto the end of the body section, or into the footer section of the template, although the footer might not support all the same substitution patterns.
If that's the kind of result you have in mind, do the same thing for the (html) tables that contain #PARENT_TAB_CELLS# and #TAB_CELLS#. I don't guarantee this will work, but it's worth experimenting with.
Scott

Substitution string used in custom Report column name does not display in PDF version of report

I am using Apex 4.2.6.00.03, Apex Listener 2 via Glassfish4 and have set up all my applications and reports on this system. We previously used Oracle 10.2, with Apache with a custom fopping document.
My issue is that I have a report that has custom column headings using a substitution string to pull in the begin or end date for the report. When the report is run and displayed, the column headings appropriately display the date. However, when I try to set up the Print to PDF option, the column headings are not displaying correctly.
Is it possible to use a substitution string in the column heading? I am able to use the substitution string in the Page Header and Page Footer and those display correctly.
In the Report Attributes setup I have set the "Strip HTML" to Yes and I have four columns that are using the &"ITEM NAME". string. See below for actual display:
The report column headings in APEX displays correctly (bold is the substitution detail):
Fund Account Description Balance 07/01/2014 Budget/Goal FY 14-15 YTD Actual 02/28/2015 Ending Balance 02/28/2015
In the Print Attributes setup, when I get to the Report Columns section, the Heading column displays the headings as set up in the Report Attributes custom and I am not able to edit these names. See below:
In the version of the report that is Printed to PDF I get the following for display:
Fund Account Description Balance %26amp;P347_BEGIN_DATE. Budget/Goal %26amp;P347_FY. YTD Actual %26amp;P347_END_DATE. Ending Balance %26amp;P347_END_DATE.
Any assistance would be greatly appreciated.
Thanks,
Pat

First, the misspelled word is a test object and not data.
Second, all data display correctly.
Third, text object is displaying the old misspelled word.
Fourth, I have eliminated the possibility that problems in of my pdf export routine cause this issue by exporting directly from Crystal Reports Viewer. I print the report to the crystal report viewer. The report looks good. The text object is spelled correctly. Then I click the Crystal Reports viewer's export button in the left upper corner and I export to both EXCEL and PDF. The excel export looks good. The pdf export is misspelled. All the export occurs internally in Crystal reports.
Fifth, I found outthat all users who have this problem have the ADOBE PDF writer installed. I am just suspicious that ADOBE writer is interferring with Crystal export
Sixth, I cannot recreate this problem on any of our development and test machines. It only happens on end-user laptops.
Seventh, I changed the name of the report that had this problem and created a new version and installed on end-user laptop. The behaviour still persists. User saved the report as both RPT and PDF. RPT export looks good. PDF version has the spelling problem. Data on both reports is up-to-date and good. I copied the same RPT export to my PC and exported it to PDF, the pdf looks good. That is why I think something on the end-users laptops is causing the export to use some cached template.
One more thing I did was to change the report name in VB.NET project, recreated a new package and installed on end-user's laptop. The same exact problem is still there.
I have worked with Crystal Reports more than 15 years and I have never such a weird behaviour before. I know this sounds very weird. We are all baffled by what is happening.

Using default application date format substitution string

I'd like to reference something like ":app_default_date_format" to set date formats in sql statements.
Does a substitution string exist that returns the default application date format?
Thanks,
-Ken

Hello Ken,
>> I'd like to reference something like ":app_default_date_format" to set date formats in sql statements.
Isn’t the whole point of defining an application date format to avoid the need to specifically reference date formats?
>> Does a substitution string exist that returns the default application date format?
I’m not familiar with an official substitution string for the application date format but you can use wwv_flow.g_date_format .
Regards,
Arie.
&diams; Please remember to mark appropriate posts as correct/helpful. For the long run, it will benefit us all.
&diams; Author of Oracle Application Express 3.2 – The Essentials and More

Conditional column display in report using column substitution string

Hi everone,
I was wondering if it's possible to display a column conditionally, based on a values in another column of the same report.
Can you use the column substitution strings or does the condition strictly require SQL, PL/SQL
or page item values?
kind regards,
Cleo

I dont think we can add a condition to display the column in a report based on the other column of the same report,
Just add a (CASE WHEN <your condition satisfies> THEN column ELSE null END) in your report source for the column you want to display conditionally.
--Mahesh

Report template substitution strings? (APEX 2.2.0)

Hi all,
I am trying to customize a report template. I would like to know if there is a way to get the sort link that goes into the column headers. The next page and previous page links have the #LINK# substitution string. #COLUMN_HEADER# doesn't give me enough flexibility.
Would I have to use a named column template for this? (I don't have much idea what that is. I read about it on Scott Spendolini's blog entry on "Click in a Row".)
Cheers!

Hello,
>> I could using JavaScript rewrite the column header to be what I want after the page renders, but I'd rather it show up the way I want in the first place
Can you be more specific about what is it that you want? The report engine allows you to use custom headings. Can’t that feature help you achieve what you want?
>> Is there a list of the substitutions strings that are available to the column header?
The substitution strings you see on the templates populated by the APEX engine with snippets of code you can’t control. You can define your own substitution strings, in the application definition page (under shared components), set them with the code you need, and use them throughout the application, including in templates. The way to use them is a bit different – instead of the “#STRING# syntax, you need to use the “&STRING.” Syntax.
Regards,
Arie.

Feature Request - show substitution string values in session state display

Hi!
I would like to request that in addition to page and application items and session state values that the value of substitution string values be shown. Another option would be to have a separate link (like session) to display them. This would allow developers to see all of the available substitution values and how they change across pages, etc.
Thanks!
Dave Venus

Dave - What are some examples of values that you are not seeing in the session state report that would be useful?
Scott

Substitution String in Row Template order dependant

Hi Folks,
This questions is related to an earlier Complex Detail Report Layout: Can it be done? about building a complex row template (thanks for your help, Vikas!). 
Having built the row template (Named Columns) and tested it in a separate application, I have been preparing to incorporate it into the target application. (Here's a screen shot of the work in progress.) I decided to see if I could use column aliases with the substitution strings and so added an alias to the query for the report. 
Strange values appeared (like a "Y" for a Project Name) and initially I thought the aliases wouldn't work, so I backed the change out. However, it was now quite apparent that the substitution strings were not taking their values from the column names, as I expected. I was able to put the values in the correct place by modifying the order of the columns selected in the query. 
Am I misunderstanding? Shouldn't the order of the columns in the select statement be irrelevant when named columns are used? 
Since the order in the query is NOT the order displayed in the template, and I have nearly 30 fields, (many of which are dates, and I couldn't possible guess which is which if the substitution doesn't work properly), it seems important to understand how to ensure the proper values appear in the report. 
Many thanks for your help, 
Petie

I take it back. This is whacked. Please take a look at the picture (http://tinypic.com/view/?pic=nygyu0)
OK, I had a select statement:
select ps.project_name, ps.project_manager, ps.gts_dependant, ps.gxp_relevant from project_status ps, eprs_program p
where
ps.program_id = p.id and
p.program_number = :P6_PROGRAM_NUMBERThis populated the fields #PROJECT_NAME#, #PROJECT_MANAGER#, etc. properly.
I even switched the order around and put the ps.project_manager ahead of the ps.project_name and template still worked.
I restored the order and checked again. All is good.
I changed the query and added an alias like so:
select ps.project_name as "PROJ_NAME", ps.project_manager, ps.gts_dependant, ps.gxp_relevant from ...The report showed the substitution string "#PROJECT_NAME#" (as expected, because the column was now aliased.) So this is good.
I went to the row template definition and changed the substitution string #PROJECT_NAME# to #PROJ_NAME# to match the query -- and the substitution strings broke again!
The report template now behaves as described earlier; being position dependant. Now I suspect that this is a bug, and not something caused by my mucking around.
I would greatly appreciate your thoughts on the matter and potential workaround. At this point, I will likely delete the region and try creating a new region. I would hate to loose the whole page, the top part was a lot of effort. <sigh>
Thanks,
Petie

Query stats substitution strings on IR region

Hello,
Are the query stats substitution strings, like #ROWS_FETCHED#, #TOTAL_ROWS#, #FIRST_ROW_FETCHED# and #LAST_ROW_FETCHED#, should be active in an IR region?
Currently, it seems they are not active, and I’m asking if it’s intentional or a bug.
Thanks,
Arie.

Hi Marco,
Thanks on your reply, and the enhancement request.
In the meantime, can you think of a work around? I’m trying to derived a row (serial) index on a paginated view, using ROWNUM. In classic report, you can subtract the current ROWNUM from the #FIRST_ROW_FETCHED#.
Thanks,
Arie.

Using substitution string

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