On 22-11-2019 15:10, Alexandre Vinhaes - Tecnico - Tecnologia
alexandre.vinhaes@... [firebird-support] wrote:
> I have a problem here during an update statement that call the function
> MOD. Althougt I have done related grant command "grant execute on
> function MOD to users1" the erro message persists:
>
> no permission for EXECUTE access to function MOD
>
> I´m not able to find out my mistake.

Which Firebird version are you using? And is this the built-in function
MOD (introduced in 2.1), or a custom function? For the built-in
function, you shouldn't need a grant AFAIK, so that could indicate a bug.

Mark
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Mark Rotteveel