Passing global variables

I am currently using Station Globals for sharing values among the main sequence and subsequence files. But I constantly need to add the variables on the many computers we own.
I tried using the File Globals in the main sequence file, but the variables are not displayed in or passed to the subsequence file. It works just like a local variable.
I also tried selecting the option "propagnate to subsequence" for the local variable in the main sequence, but still didn't get passed to the subsequence.
Thanks!
ph2

ph2 wrote:
I am currently using Station Globals for sharing values among the main sequence and subsequence files. But I constantly need to add the variables on the many computers we own.
I tried using the File Globals in the main sequence file, but the variables are not displayed in or passed to the subsequence file. It works just like a local variable.
I also tried selecting the option "propagnate to subsequence" for the local variable in the main sequence, but still didn't get passed to the subsequence.
Thanks!
ph2
I'd recommend you consider using sequence parameters rather than globals. If you use globals, and you someday want to switch to a multi-socket test system, you might have to make signficant changes to your code because you likely would not want all of the threads using the same globals. If you use parameters instead, then every thread already would automatically have its own copy of the variables. Also parameters do not have the problem you are asking about here.
-Doug

Similar Messages

Passing global variable values from databse to forms

I am using forms 6i and database is oracle 9i.
I am trying to run a form stand alone ( by pressing CTRL-R) without putting it in the application.
since when this form is placed in the application menu it works fine as it has been passed global variables values from the database .
now i am trying to run the form without menu and thus i want to pass the values of global variables .please let me know where should i pass these values in form .is it be WHEN-NEW-FORM-Instance trigger or in Pre-form trigger.
i know what are the global variable values passing into the form from database.
i can hard code any values to check if the form runs well or not.

If you intend to do this sort of testing regularly you might want to consider creating a seperate form with a control block which allows entry of the name of the form you want to run, the names of the globals and their values, and do a CALL_FORM.

Passing Global Variable in Sql Object

Hi
How can i pass my global variable into SQL object? I tried to pass it but then I tried to update the schema it giving me the error at varble
Please advise me

The Update schema is used only to get the structure for the Output.
Once you have a valid structure and the SQL Parses without any variables use the syntax for applying variables as in any Script within DI.
$GV_MyVar enclosed within square brackets will be replaced by Value of the variable.
$GV_MyVar enclosed within curly brackets will be replaced by Value of the variable enclosed in single quotes.
When the job runs, the variables will be replaced with values OR values with quotes. It is at this time, the SQL send to the database is validated for syntax.
Therefore, you will not know the validity of your SQL with Global Variables until you run the job.
Hope this helps!
Thanks & Regards
Tiji
Edited by: Tiji Mathew on May 8, 2009 3:40 PM
The actual syntax was being posted as a link. edited to make the text descriptive.

Pass Global Variables to another forms(urgent)

Hi,
Can someone tell me what is the best way to pass a global variable from one form to another forms. I havn't trouble with that.
Please advise.
Thank you very much
Tim
null

You can use a parameter.
Helena
null

How to pass global variables to call stored procedure in form personalizati

Hi,
We want to call a custom store procedure with 2 paramterts, I am storing values into 2 global variables.
We want call the custom store procedure with global variable values in form personalizations.
We tried like
='declare
begin
SUR_TEST_ORDER_LINE_UPD.update_order_line (:global.xx_line_id, :global.ship_set_id);
end'
Could you please suggest.
Advance Thanks
Subbu

Hi,
Doc number (MOS Doc 743490.) is avaiable in metalink or ?Yes.
Note: 743490.1 - Customization in Oracle Applications
https://metalink2.oracle.com/metalink/plsql/ml2_documents.showDocument?p_database_id=NOT&p_id=743490.1
Regards,
Hussein

How can I pass Global Variable from Page1 to Page2

I have the following senario.
Pag1 - report is based on following PL\SQL
declare
g1 varchar2(100);
begin
g1 = select * from emp where dept = 10;
return g1;
end;
Now I have Page2 - based on following PL\SQL
declare
g2 varchar2(100);
begin
g2 := g1; -- here i want to use variable g1???
return g2;
end;
My question is - How can I use variable g1 from P1 in my new page P2.
Thanks,
Deepak

Hi Andy,
Thanks for the clarification.
I did exactly the same, created a new Region with HTML (PL\SQL) and got the output. it was fine.
Now when I am using exactly the same code in a Report (PL/SQL function returning a SQL Query), I am getting the following error.
DECLARE
g VARCHAR2(100);
BEGIN
g := 'This is a test string';
APEX_UTIL.SET_SESSION_STATE('G_SQL_STRING', g);
htp.p(v('G_SQL_STRING'));
END;
ERR-1002 Unable to find item ID for item "FLOW_SECURITY_GROUP_ID" in application "4000".
ERR-1002 Unable to find item ID for item "G_SQL_STRING" in application "4000".
I am doing the same thing, nothing changed....only difference is in 1st case I am using HTML (PL\SQL) Region and in 2nd case using the REPORT Region (PL/SQL function returning a SQL Query)
thanks,
deepak

Passing global variable

HI,
WHEN-Button-pressed on first from
:global.a_sale_order_no := :sale_order.sale_order_no;
open_FORM('C:\test_report\final_to_be_added_to_main\DELEVERY_MASTER_new');ANd the open_form DELEVERY_MASTER_new
WHEN-NEW-FROM-INSTANCE(code) is
Set_Window_Property('DELIVERY_DETAIL', WINDOW_STATE, Maximize);
SELECT s.cust_id,s.SALE_ORDER_NO,s.PARTY_NAME,s.SEASON_YEAR, s.DEL_DATE,c.CURRENCY,S.delivery_address,S.SHOWROOM_ADDRESS,
S.INVOICE_ADDRESS,s.SHIP,s.PAYMENT_TERM,s.CONTACT_PERSON||chr(10)||s.CONTACT_NO,s.vat_no INTO :delivery_master.cust_id,
:delivery_master.sale_order_no,:delivery_master.CUSTOMER_NAME,:delivery_master.SEASON,:delivery_master.DEL_PERIOD,
:delivery_master.CURRENCY,:delivery_master.DELIVERY_ADDRESS,:delivery_master.CUSTOMER_ADDRESS,
:delivery_master.ACCOUNTS_ADDRESS,:delivery_master.SHIPPER,:delivery_master.PAYMENT_TERMS,
:delivery_master.CONTACT_INFORMATION,:delivery_master.vat_no
     FROM sale_order s,customer_master c
     WHERE c.CUST_ID=s.cust_id and SALE_ORDER_NO = :global.a_sale_order_no ;I want when i press the button on first form then if sale_order_no already in delevery_master_new then message already in delevery_master_new
Please Guide
Thanks And Regards
Vikas Singhal

Vikas,
Change the WHEN-BUTTON-PRESSED trigger in first form with this one. And giving file path in the OPEN_FORM built-in is not advisable.
DECLARE
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     Num_Temp NUMBER := NULL;
BEGIN
     OPEN Cur_SOrder;
     FETCH Cur_SOrder INTO Num_Temp;
     CLOSE Cur_SOrder;
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          MESSAGE('Already in Delivery Master');
          RAISE FORM_TRIGGER_FAILURE;
     END IF;
     :GLOBAL.a_sale_order_no := :SALE_ORDER.SALE_ORDER_NO;
     OPEN_FORM('DELEVERY_MASTER_new');
END;Regards,
Manu.
If my response or the response of another was helpful, please mark it accordingly

How to pass environment variables in Host file

Hi Gurus,
I'm having a requirement where I need to send my report output file as an attachment to customer. I achieved this by using host program and connecting to db server by using ftp. I am placing my output file in db server. From there onwards by using pl/sql scripts I am sending output file as attachment. The program is working fine for me no issues.
Now in this program i am hardcoding ip number, user name of Ip and pwd of ip. Our client don't want all those info needs to be displayed in the host(.prog) FILE.
For this i've written all variables in the .env file. But the .prog file triggers from application server. And I've written my variables in .env file which is in db server(different ip). When I am reading these values in the .prog it is throwing error saying the .env does not exists in the application server. Which is true since this is residing at db server.
Please help me how can i pass global variables to this .prog file. Remeber that I am able to send output file by hardcoding user name and password.
Appreciate your help in advance.
Regards,
Nagendra

Hi Hussain,
Thanks for your reply.
My requirment is not related to the apps password. I know the four parameters which we can default, my requirement is further ahead.
In my host program I am connecting to db server. As it is evident .prog file runs from appl server. I need to transfer file from appl server to db server. For that I want to use global variables kind. Like if I write in .env file then I can use that parameters in across all the programs. But what I've seen from instance is that my .env file resides in db server means if i want to initialize those global variables i need to connect db server then only I can connect.
Now I need to use global variables in appl server where I don't have any .env file at this level. If say parameters through program we can pass but it is password of db server which I need to secure from users and rest others for that I need to declare global variables at appl server level. How is that possible.
The threads I've checked them already those are related to passing parameters which is possible but my requirement is to pass parameter which is hidden and through programatically it has to trigger in to the program. If my program is pure shell file and resides and db server then no issues. Here the complexity is that .prog file resides in appl server and I want to do transfer from appl server to db server.
Thaks for your patience.
Regards,
Nagendra
Edited by: 838961 on Mar 19, 2012 12:23 AM

How do i create and pass a global variable from one vi to several sub-vi's?

Hi Guys,
I am trying to create a program that opens several front panels (sub-VI's) in sequence. in each front panel, the user would open a file that the name is obtained from the previous sub-VI. I would like to know how i could pass the filename and refnum of the file thorough from one sub-vi to another. A global variable would do it in VB, but how do we do global vars in LABWIEW. thanks
Papish

I put together a sample VI and Sub VI that illustrates how to pass a Refnum and access a data file while in a Sub VI.
For multiple VIs just repeat the sub VI process.
You probably don't wanna use a Global Variable if not needed (can add to the mess down the road haha).
Let me know if it helps you out! Or if I can clarify anything else!
Chances are if you have seen VI in the forest it hasn't fallen.
Attachments:
Passing Refnum.zip ‏21 KB

How can I pass a value field to a global variable?

I have a doubt,
I wnat to know if is possible to pass a value field to a global variable inside of DataFlow?
That a try to do is at the time to execute a JOB on line (real time), depending of the value field that i receive, only certain DATAFLOWS will be executed depending of the value field.
I hope you can help me.
Kind regards!!!

It can be done via various ways, your approach is kind of odd, though.
You are saying you have one kind if Input message, depending on the flag you want to do different transformations. The way you envision that is by loading that flag into a global variable and use different dataflows then.
Can you use different dataflows within one Realtime Job? Yes, usually the first loads an in-memory datastore.
Can you write into a global variable? Yes and No. Not directly, but you can write the value into e.g. a database and using the sql() function read it from there. But why would you. You could write it into the in-memory datastore. And then you run your n dataflows, each has a filter. So only one of these dataflows will actually process the data.
Are there other approaches? I would have a Case transform at the beginning and route the data into different queries depending on the data. So all in one dataflow. Your approach is fine for a batch dataflow where a dataflow is started, does something and then ends. But that's not how it works in Realtime!

Can i pass parameter or global variable in view from 6i form

hi master
sir can i pass parameter or global variable in view from 6i form
i use view for some diff column calculation within the date then i use
where date between data1 and date2
in view but view not create
please give me idea how i pass external value in view
thank
aamir

Hi Antony!
I feel it may not produce the right results if you
dont include the where clause and using only group by
in view.You felt? Please clear, logical thoughts put here, not feelings.
(It may very well have all the Debit, Credit
for all the Accid where as the user wants only for
r some date range)Data range is determinated in Form by user, so if view should give final data set then you must back
on Ranjana first question: How to pass parameter or global variable to view from 6i form?
And also as Ranjit pointed out, If you have only
accid, sum(debit), sum(credit) in View, wheres this
enddate ??Of course, column entdate (or enddate?) must be included in view...
Cheers!

How to pass the global variable in enter_query mode

Dear Friends
I am calling the form and in enter_query mode ,but my global variable is not pass to the form when it is in enter_query mode , me be the field is clear after the enter_query is called ,in which triger do I have to keep my variable
:H_DOC_CODE := :global.offer_no ; so that it will be assign to the field
:H_DOC_CODE this my script is keept in
WHEN-NEW-FORM-INSTANCE.
waiting for your valuable answer.
best regards
Jamil Alshaibani
-- this my script
DECLARE
     V_STATUS NUMBER;
BEGIN
     :system.MEssage_level := 25;
     :GLOBAL.V_STATUS := 0;
     CLEAR_FORM(NO_VALIDATE);
     enter_query ;
:H_DOC_CODE := :global.offer_no ;
END;

I'm not quite sure what you mean with
But the document number is not pass to the called form field and : H_DOC_CODE is a field in the called form.Do you want that the form is in ENTER-QUERY-mode and the field H_DOC_CODE contains the field of the GLOBAL?
Or do you want to automatically execute a query with that H_DOC_CODE.
For the first, you have to assign the global in the WHEN-NEW-RECORD-INSTANCE-trigger instead of the PRE-QUERY:
IF :SYSTEM.MODE='ENTER-QUERY' THEN
:H_DOC_CODE :=:global.offer_no ;
END IF;For doing an automatic query the suggested solution with the PRE-QUERY-trigger is right, but you would have to issue an EXECUTE_QUERY in the WHEN-NEW-FORM-INSTANCE instead of an ENTER-QUERY.

Can the output of a Generate Occurrence be passed in Local/Global Variable?

Can the output of a Generate Occurrence function, which is a refnum, be passed in Local/Global Variable so that it does not need to be wired to all parties directly?
Can more than one party be waiting on the same Occurrence and will all waiting function be released together?

dbaechtel wrote:
Answer was not given:
Can the output of a Generate Occurrence function, which is a refnum, be passed in Local/Global Variable so that it does not need to be wired to all parties directly? Is this possible?
I am not worried about whether it is bad form or not, as yet. That is for me to decide on a case by case basis.
Yikes! That is not a very good way to learn.
Anyways, to avoid any more bold emphasis on words, I will answer your question. Locals can only be linked to controls/indicators not individual wires. If you want to get the effect of a local/global variable with a wire value, search the forum for action engines or functional globals. Those will work for passing a wire value between threads.
That said, what are you trying to use occurences for? There may be (and probably is) a more accepted way to implement what you are trying to do instead of using local variables
CLA, LabVIEW Versions 2010-2013

What is the difference between using a global variable,passing a valuee and using a reference?

I have created a project that consists of several VIs. Only the main VI has a front panel and the others perform functions. The function VIs are dependent on controls on the main VI's front panel. I have several ways of passing the value of the controls. One is to use a global variable and just place it on the dependent VIs. Another option is to strictly connect the terminal from the control to a VI connector block and pass the value directly. My last option is to create a reference of the control and reference it inside the dependent VIs, but this would also require connections to be made to the VI block.
What are the advantages/disadvantages of these options?
-Stephen

5thGen wrote:
I have created a project that consists of several VIs. Only the main VI has a front panel and the others perform functions. The function VIs are dependent on controls on the main VI's front panel. I have several ways of passing the value of the controls.
1) One is to use a global variable and just place it on the dependent VIs.
2) Another option is to strictly connect the terminal from the control to a VI connector block and pass the value directly.
3) My last option is to create a reference of the control and reference it inside the dependent VIs, but this would also require connections to be made to the VI block.
What are the advantages/disadvantages of these options?
-Stephen
1) Globals are evil and introduce race conditions.
2) The sub-VI only get the value when it was called and updates that occur while the sub-VI is runing are not sensed by the sub-VI
3) This uses property node "value" or "value signaling" both of which run the user interface thread which is single-threaded and you incur a thread swap hit to performance. You also have a potential for race conditions.
The are various methods for sharing dat to/from sub-VI which include Queues and Action Engines.
I hope that hleps,
Ben
Ben Rayner
I am currently active on.. MainStream Preppers
Rayner's Ridge is under construction

Passing values to global variables while running job via management console

Hi All,
I have a requirement, where I have to use HANA view with input parameters as source. I am doing the same by placing the HANA query for view with input parameters, in SQL transform and assigning values to placeholders using global variables. This is working fine at the designer level.
But where I am stuck is, it possible to pass values to global variables while running job in Management console or in a third party scheduler. Should I do any changes in the batch job to achieve the same ?
Please help me with the same and also let me know whether my approach of using Global variables to assign values to input parameter of HANA view is right?
Thanks,
Deepa

Select Batch > Batch Job Configuration > Add Schedule and Expand the Global Variables section in the Schedule Batch Job tab. You can then specify a value for all your global variables.
Alternatively, work with control tables and assign values to the global variables in an initialisation script.

Passing global variables

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