Passing a Text Variable as output parameter in Store Procedure

Hello All,

i need to pass a Text type variable as a ouput in a store procedure

for example

créate sp_test_text i_a integer, b_t text output

then when i made

select b_text = "xxxxx" i recibe this message

User api layer: internar library error: the bind of result set ítem 1 resulted in truncation

any help will be wellcome

thanks in advance