In Firebird would be a way to auto-update coincident rows in a INSERT procedure?

if you are running a query that inserts a new set of records in a table from other one, t开发者_开发技巧here is a way to force the update of the coincident pk record in the destination table, without deleting records or split the process in two others (insert new and update existing)?

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In Firebird 2.1, you can do Update or Insert

UPDATE OR INSERT INTO T1 (F1, F2)
    VALUES (:F1, :F2)
    MATCHING (F1);