Other forms of global variables

[tfg]

How can I create a variable that can be manipulated in all procedures of a form without using global?

[dr_gori]

Global \r\n

Really, global are not legal, because they occupy 256 bytes and are always char. (You can even store numbers, but they are converted at the time of use).

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:global.sua_var:='sua_string';

Parameters \r\n


has the parameters, which are better than global As they support a larger number of bytes. (not only 256).

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:parameter.seu_par:='sua_string';

Forms Packages - Best Practice! [/ Size]

You create a package Specs and declares a variable there. So you can use it or change it anywhere in the program. (Of course, you can use all types of variables, including Boolean).

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PACKAGE PKG_TESTE IS 
  sua_var     varchar2(10):='TESTE'; 
  valida_trig boolean; 
END;

I think the global should be used only when you want to transfer information between several distinct forms. If it is only between procedures of the same form, it is best to use variable packages.

[eduardo]

One thing happened to me today: By assigning a numbering value to my global variable in Runtime gave error 06502: inconsistent datatypes; I had to put a toar to the assignment.

: Global.Conta_Transacoes = to_char (3);

To assign letter to number is from which version of Forms?

[mprocha]

The packages can also be used in a global way between the invoked forms, but they must be defined in PLL and it should be stabbed in all forms that will use these global variables.
At the time of calling the forms you must use Call_Form by passing the Share_Library_Data parameter, so the defined and assigned variables in these packages can be manipulated by all forms that share this PLL.
I particularly use much for popular and read arrays between a form and another.
ABS,