[Stackoverflow] [Progress OpenEdge ABL] Can I specify the contents of the buffer while creating it in Progress-4GL?

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Diego

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Noob to Progress here and self-taught while working so sorry if I missed some obvious things. I learned about buffers yesterday and I'd like to know if it's possible to delimit the scope of what the buffer will search. Below, an example of what I want to know.

Code:
DEFINE BUFFER ex1 FOR emit WHERE emit.id > 50000.

FOR EACH ex1:
    DISP ex1.id ex1.name.
end.

I know I could put the WHERE on the FOR EACH part in this example, but I'd like to know if and how can I delimit the buffer so I can do what I intend to in my code here.

Thanks for the help.

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