Gediminas,

G> I needed to enter into insert state & then everything is working ok.

do you mean you were trying to insert records without calling Insert()
first? It's strange it worked at all then. :-O

G> how to get generator value manually? GetGeneratorValue or smth like this

Many different possibilities here. The Gen_ID method in TIB_Connection
is a rather convenient one.
Ciao
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