Question about cursors

This is an easy one, but I haven't yet found the answer in the doc (still looking)

When is a cursor implicitely closed ?

I can close it explicitely with the CLOSE verb, but does it get closed as soon as we exit from the procedure that created/opened it? Can we call the procedure in a loop, and each time get, say, the next row from that cursor? That's what I would need to do. If that isn't possible then I would have to do a select where key > previous_key or something like this in that cursor and reopen the cursor every time the procedure is called.

Thanks.

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Syltrem
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