Strange issue with Global Variables - Forms 12c

User_28QL8

Hello,

I have recently taken up a project where forms written in 10g needs to be converted into 12c.   When looking at  these forms,  there is extensive use of these global variables.

One odd thing I see with these global variables is that they are not declared anywhere in these forms.  Usually, we declare and assign a value to a global variable in WHEN-NEW-FORM-INSTANCE trigger.

Whereas this trigger (WNFI), shows no reference whatsoever for these Global variables.

Now , I am at a loss here,  these Global variables are used every where in these forms, but they simply do not exist in WNFI where they should have been declared and assigned a value in the first place.

Where else these Global variables could be getting it's value or would have been declared? Any idea?

Thank you,

Darsh

Michael Ferrante-Oracle

You can have global variables anywhere in your application.  The only criteria is that you initialize them upon creating them.  In other words, you must give it a value the first time you call it.  You can't just do :global.foo := X.  The first time it is called, a value must be assigned to it.  So something like :global.foo := 0  After that you can do whatever is needed.

User_28QL8

Hi Michael,

Exactly.   To quote your example to describe my issue further:

In these forms, I see  following everywhere

a_variable := :global.foo;

b_variable := :global.foo;

c_variable := :global.foo;

But I do not see this anywhere at all.

:global.foo := 0;

Thanks,

Darsh

User_G4WFE

Good Morning everyone

I´m using Oracle forms 12.2.1.4

Question: What is best (in performance terms): use GLOBAL variables or Package variables ?

Thanks in advance...

Michael Ferrante-Oracle

@User_G4WFE Please do not hijack the thread. If you have a question about using Forms Global variables, create a new post.

User_G4WFE

Good afternoon

I´m so sorry... I will not happen again...