thanks for the reply, i want to continue to use sql procedures, not java fucntions (or other languages).

thanks for the suggestion, my application doesn't have an heavy db usage so also if calling sub procedures is not optimal is not a problem (if in future we begin to have performance problem i will remember your suggestion :) )

i'm using fb 2.5 superclassic on windows.

maybe what i'm asking is related to the ui application used to manage the db (i'm using flame robin that is very simple and with few tools),
i want only same way to group / hide procedures to better organize them, so it will be more easy to manage them.