How to use a global variable for reading a query resultset in JDBC lookup?

Hi Friends,
Using JDBC lookup, I am trying to read from a table Emp1 using a user defined function. In PI 7.0, this function returns values of a single column only even if you fire a " Select * " query. I am planning to use a global variable(array) that stores individual column values of the records returned by a "select *" query. Need pointers on as to how a global variable can be declared and used to acheive the above scenario. Kindly explain with an example. Any help would be appreciated.
Thanks,
Amit.

Hi Amit,
Sounds like a good idea but then you would need an external db and update the table in a thread safe way !.
Regarding your question as to how to work with global variable please refer https://www.sdn.sap.com/irj/scn/weblogs?blog=/pub/wlg/1352. [original link is broken] [original link is broken] [original link is broken]
Rgds
joel

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How do I set global variables for use by ALL form1.#subform[0] items?

Hi All,
I know how to code javascript but am new to Adobe LiveCycle. When I open script editor, I have the following code (all code is in un-bolded):
----- form1.#subform[0]::initialize: - (FormCalc, client) ------------------------------------------
// BEGIN: SET GLOBAL PRICES //
var Cityscope_Sydney_CostUser1 = 60.39;
var Cityscope_Sydney_CostUsers2to5 = 3.02;
var Cityscope_Sydney_CostUsers6to20 = 1.21;
var Cityscope_Sydney_CostHardCopyWithOnline = 14.59;
var Cityscope_Sydney_CostHardCopyWithoutOnline = 54.67;
var Cityscope_Sydney_CostHardCopyAdditional = 14.59;
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// END: SET GLOBAL PRICES //
----- form1.#subform[0]::enter: - (FormCalc, client) -----------------------------------------------
----- form1.#subform[0]::exit: - (FormCalc, client) ------------------------------------------------
----- form1.#subform[0]::calculate: - (FormCalc, client) -------------------------------------------
----- form1.#subform[0]::validate: - (FormCalc, client) --------------------------------------------
----- form1.#subform[0]::preSave - (FormCalc, client) ----------------------------------------------
<<======= etc etc etc =======>>
----- form1.#subform[0].Item1Cost::initialize: - (JavaScript, client) ------------------------------
----- form1.#subform[0].Item1Cost::enter: - (FormCalc, client) -------------------------------------
----- form1.#subform[0].Item1Cost::exit: - (FormCalc, client) --------------------------------------
----- form1.#subform[0].Item1Cost::calculate: - (JavaScript, client) -------------------------------
//Store form values in user-friendly names.
var AreaSelected = Item1Area.rawValue;
var NumberOfUsersSelected = Item1Users.rawValue;
//Declare other vars.
var Users1Calculation;
var Users2to5Calculation;
var Users6to20Calculation;
//Calculate individual User Cost "components" based on number of users selected for the area.
switch(true)
case (NumberOfUsersSelected < 2):
Users1Calculation = NumberOfUsersSelected * Cityscope_Sydney_CostUser1;
Users2to5Calculation = 0.00;
Users6to20Calculation = 0.00;
break;
case (NumberOfUsersSelected > 1 && NumberOfUsersSelected < 6):
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Users6to20Calculation = 0.00;
break;
case (NumberOfUsersSelected > 5):
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Users2to5Calculation = 4 * Cityscope_Sydney_CostUsers2to5;
Users6to20Calculation = (NumberOfUsersSelected - 5) * Cityscope_Sydney_CostUsers6to20;
break;
default:
alert("BROKEN: Calculate individual User Cost components based on number of users selected for the area.");
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Item1Cost.rawValue = Users1Calculation + Users2to5Calculation + Users6to20Calculation;
----- form1.#subform[0].Item1Cost::validate: - (FormCalc, client) ----------------------------------
----- form1.#subform[0].Item1Cost::mouseEnter: - (FormCalc, client) --------------------------------
----- form1.#subform[0].Item1Cost::mouseExit: - (FormCalc, client) ---------------------------------
----- form1.#subform[0].Item1Cost::change: - (FormCalc, client) ------------------------------------
----- form1.#subform[0].Item1Cost::full: - (FormCalc, client) --------------------------------------
----- form1.#subform[0].Item1Cost::mouseUp: - (FormCalc, client) -----------------------------------
----- form1.#subform[0].Item1Cost::mouseDown: - (FormCalc, client) ---------------------------------
----- form1.#subform[0].Item1Cost::click: - (FormCalc, client) -------------------------------------
----- form1.#subform[0].Item1Cost::preSave - (FormCalc, client) ------------------------------------
----- form1.#subform[0].Item1Cost::postSave - (FormCalc, client) -----------------------------------
----- form1.#subform[0].Item1Cost::prePrint - (FormCalc, client) -----------------------------------
----- form1.#subform[0].Item1Cost::postPrint - (FormCalc, client) ----------------------------------
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----- form1.#subform[0].Item1Cost::docReady - (FormCalc, client) -----------------------------------
----- form1.#subform[0].Item1Cost::docClose - (FormCalc, client) -----------------------------------
----- form1.#subform[0].Item1Cost::ready:form - (FormCalc, client) ---------------------------------
----- form1.#subform[0].Item1Cost::ready:layout - (FormCalc, client) -------------------------------
----- form1.#subform[0].Item1Users::initialize: - (FormCalc, client) -------------------------------
----- form1.#subform[0].Item1Users::enter: - (FormCalc, client) ------------------------------------
----- form1.#subform[0].Item1Users::exit: - (FormCalc, client) -------------------------------------
----- form1.#subform[0].Item1Users::calculate: - (FormCalc, client) --------------------------------
----- form1.#subform[0].Item1Users::validate: - (FormCalc, client) ---------------------------------
----- form1.#subform[0].Item1Users::mouseEnter: - (FormCalc, client) -------------------------------
----- form1.#subform[0].Item1Users::mouseExit: - (FormCalc, client) --------------------------------
----- form1.#subform[0].Item1Users::change: - (FormCalc, client) -----------------------------------
----- form1.#subform[0].Item1Users::full: - (FormCalc, client) -------------------------------------
----- form1.#subform[0].Item1Users::mouseUp: - (FormCalc, client) ----------------------------------
----- form1.#subform[0].Item1Users::mouseDown: - (FormCalc, client) --------------------------------
----- form1.#subform[0].Item1Users::click: - (FormCalc, client) ------------------------------------
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----- form1.#subform[0].Item1Users::postPrint - (FormCalc, client) ---------------------------------
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----- form1.#subform[0].Item1Users::docReady - (FormCalc, client) ----------------------------------
----- form1.#subform[0].Item1Users::docClose - (FormCalc, client) ----------------------------------
----- form1.#subform[0].Item1Users::ready:form - (FormCalc, client) --------------------------------
----- form1.#subform[0].Item1Users::ready:layout - (FormCalc, client) ------------------------------
...and so on and so forth....
In short, I want the code within:
----- form1.#subform[0].Item1Cost::calculate: - (JavaScript, client) -------------------------------
...to be able to access the variables I have created in:
----- form1.#subform[0]::initialize: - (FormCalc, client) ------------------------------------------
(I have assumed that this is where I would store Global variables)
At this stage, the global variables cannot be accessed with the configuration above. The only was I can get this to work is to cut and paste the global vairables into each form1.#subform[0] item, which of course defeats the purpose of global variables! I plan to have many more items so would not want to duplicate the global variables for all of them!
Can somebody show me how to do this?
Any help is very much appreciated!
Thanks
Stanbridge
Message was edited by: stanbridgej - colors and or fonts won't save. Have bolded my question to make code (non-bolded) easier to read (I hope).

Hi MorisTM,
Thanks for the reply!
Yes, I saw that option (I should have mentioned I already knew about it), but was wondering if there is a way I can do this via code.
There are two reason I want to be able to do it via code (only one of which may be valid):
1) I can automatically generate my pricing code form another inhouse app.
2) I am hoping that later on once I get this working I will be able take it a step further and get the data directly from a MySQL database!
Cheers though!
Any other suggestions?
Regards,
Stanbridge

How to use one Bex Variable for two purposes in one query?

Hi,
I want to prompt for a UOM in a query. Then I want to use that one UOM variable to do 2 tasks in the query:
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Gregg

Oh, it all seems so easy now! Hindsight 20-20...
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How to Use Same Navigation Panal for two different query

Hello,
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Use global Variable for Formatstring

Hello
I wanna use a global variable for a format string. see picture. But I don't work.
Can anybody give me an idea, why it won't work?
Thanks a lot!!!
Attachments:
GlobalVariable.jpg ‏61 KB

As others said, the problem is not the global.
See attached a picture of how to do what you want. Since the Format String is unknown at edit time, you must provide the types to all inputs that are not DBL.
From your example, the while loop has been coded exactly like a for loop. It can be replaced with a for loop with auto-indexing, unless you really want the local variable to be update at each iteration every 50 ms. This delay is not necessary unless the computed array is huge and you want to leave some CPU time to other code in your application. Even then you can enter a delay of 0ms to force to swap to other tasks.
I don't know what your INT>BOOL VI does but using Scan from String you can read a number directly into a boolean. The number i
s rounded to an unsigned integer and 0 is False and >0 is True.
For example you scan a string for a boolean with format string %d.
"0" --> False
"24" --> True
"-18" -- False (coerced to unsigned = 0)
You scan a string for a boolean with format string %f:
Negative number up to "0.5" --> False (coerced and rounded to 0)
Number greater that 0.5 --> True
LabVIEW, C'est LabVIEW
Attachments:
diag.jpg ‏15 KB

How can I define global variable in user exit whic I can use anywhere.

Hi all,
How can I define global variable( Table ) which I can use when it come back to same user exit where I defined and stored some data.
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Thanks a lot in advance.

You can use EXPORT TO MEMORY ID and IMPORT FROM MEMORY ID Statement for this.
EXPORT T_ITAB FROM T_ITAB TO MEMORY ID 'ABC'.
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How to Set multiple Global Variables without using Controls or Indicators

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ariable and its value.
In LabView you can use the "Invoke Node / Set Control Value" and "Get Control Value" properties to achieve the same thing. But as mentioned above, you need to create a control for each global variable and that is a big pain in my case, with many global variables. Furthermore, the global variables are read from a Configuration Text File to this VI. Is there a way to do it without using the control? Thank you in advance for any help.

Actually you could create the same sort of facility in LV. All you have to do is create a LV2-style global that behaves as follows:
To write a value to it, you supply a value name and the value. These pieces of data are save internally in seperate arrays.
To read a value, you supply a value name. The VI looks up this name in the value name array to return an index into the value array. Output the value you find.
Frankly though, it sounds like what you really need is not hundreds of globals, but a good way to manage configuration data.
Mike...
Certified Professional Instructor
Certified LabVIEW Architect
LabVIEW Champion
"... after all, He's not a tame lion..."
Be thinking ahead and mark your dance card for NI Week 2015 now: TS 6139 - Object Oriented First Steps

Pass the value of the current case in a case structure to a global variable for use in VIs.

I have built a large queued state machine (>100 cases). In each state, I run a VI that I have created. These VIs are usually not very different from one another. In many cases, I could simply use the same VI over and over again. There is only one problem with that. None of these VIs know which case to send the program to next. I have to change the value of the "NEXT_CASE" constants in the VI and save it under a new name to be inserted into each new case. Now my program consists of hundreds of VIs whose only difference is the value of their "NEXT_CASE" constants. This causes all kind of headaches when I have to insert new cases into the state machine, and it is just too much for me to deal with.
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Instead of defining the next state inside the subvi, why not do it in the main vi inside each state case? An output from the subvi could be used with a case structure to determine the next state. Sort of like, if the subvi returns 0 then next state is State3, else if the subvi returns 1 then next state is State4.
Message Edited by tbob on 08-19-2005 03:15 PM
- tbob
Inventor of the WORM Global
Attachments:
NextState.PNG ‏5 KB

How to Set and Use a global variable within a session?

Dear All,
I'm new to jsp, and would like to ask how to set and use a global variable within a session?
Thanks in advance.
Regards,
Cecil

With session.setAttribute("name",object) you can store a Attribute in the session object.
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How to declare global variables using another global variable in ODI

I am declaring a gloabal variable using another global variable.
say for example:
I have a global variable empid.
I am decalaring another global variable empname in refreshing tab of global variables and the select statment is
select empname from emp where empno = #GLOBAL.empid -------if i write like this i am getting error as invalid character.
select empname from emp where empno = '#GLOBAL.empid'-------if i write like this i am getting error as invalid number.
I have kept the datatype as numeric and action as non persistent
Please help
Thank you in advance.

Hi,
You cant test/refresh empname standalone.
You need to create a new package drag and drop both variables and make them as refresh variable and execute that package and test.
Flow,
empid----> empname
Thanks,
Guru

How use the same variable in read and write way?

I don't know how to use the same variable in a .vi like an indicator and a
control at the same time.
Can someone help me?
Thnks.

Thanks!!!
I'll try.
"Adam Russell" escribió en el mensaje
news:bkavdl$rd021$[email protected]..
> Create local variables from the control (or indicator) and you can make
> each local either read or write. Be careful of race conditions.
>
> "Urban" wrote in message
> news:bkam3b$c4k$[email protected]..
> > I don't know how to use the same variable in a .vi like an indicator and
a
> > control at the same time.
> > Can someone help me?
> >
> > Thnks.
> >
> >
>
>

How can I programmatically create and use a global variable?

I have an app where the number of AI DAQmx tasks I create are specified in a config file. I have a monitor task that periodically looks at the latest values from all DAQ tasks. I've been doing this with a set of global variables because it was the simplest way to do it. But to do this, I have to explicitly create a separate AI task that uses the hard-coded global variable name for the DAQmx samples. I would prefer to only write one VI for the DAQ loop that writes to a global variable that I programmatically create based on the config file. The only solution I can think of is to use a global variable "pool" that is sized bigger than I expect to need, and then have a big switch case to select which one I want based on the task index. But this sounds pretty silly.

I tend to agree with Ben. I don't buy the concept of taking the asy way out (globals) because it very rarely will things remain static. You almost always have to extend the features and functionality of an application and then you will run into issues with sloppy and lazy implementations. The solutions offered may require a little time to learn but once you do it doesn't really require any extra effort.
Mark Yedinak
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How to declare a global variable from a PL/SQL package

Hi All,
Using a global variable is a bad practise for all language. However, in my case, I have a PL/SQL package defines all constants, and I want to use them directly via SQL statement, for instance,
PACKAGE my_const
IS
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FUNCTION get_default_zip_code RETURN VARCHAR2
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thanks
Edited by: user4184769 on Jul 19, 2010 8:36 AM

riedelme wrote:
thanks for the info. Your scope explanation makes sense even though it is not intuitive to me. I think the usage of package variables should be supported by SQL (they're just values to be copied) Maybe look at it from another language's perspective. You want to use a global PL package variable in Java/C#/Delphi/VB/etc. How would you do it?
None of these languages can crack open the data segment of a PL code unit, inspect the variables in it, and extract a value from it. Instead, it needs to be done as follows:
Using sqlplus as the client illustrates how all these languages will need to do it:
SQL> var value varchar2(20);
SQL> begin
2>     :value := SomePackage.someVar;
3> end;
4> /So why should SQL behave differently? It is not the same as the PL language. It is not a subset of the PL language. Yeah, PL/SQL blurs the line between these 2 languages making it very simple for us to mix their source code. But PL/SQL is SQL integrated with PL - not PL integrated with SQL. PL has tight hooks into SQL, creating cursors for you, defining bind variables, binding variables and doing the whole Oracle Call Interface bit for you.
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How can I access global variables in a loaded Applescript?

How can I access global variables in a loaded script, in Xcode, ApplescriptObjC? Basically, I have a global variable defined in my parent script using "property", and I need to modify objects connected to those variables inside of a loaded script.
Example:
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script AppDelegate
property myTextField : missing value
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One other possibility is to pass a reference to the property to the handler. Not sure if that works in AS of if that would satisfy our requirement of not passing the variable through the handler
<edit>
Another though have you tried to define the property outside the script? That is
property myTextField : missing value
script AppDelegate
Not sure if that will work.
You might also want to have a look at Scope of Properties and Variables Declared in a Script Object

How to create a global variable in forms 6i

How to create a global variable in forms 6i

:GLOBAL.my_var := 15; Well, this statement is not correct! Global variables
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:GLOBAL.my_var := 15;
;)

How to use a global variable for reading a query resultset in JDBC lookup?

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