how i give the usrename and password in the sql command?

:setvar Maindbserver "NHSserver"

:setvar Maindb "NHS_031209"

:Connect $(Maindbserver)

go

$ maindb

this is my code.

in this script how i can give user name and password?

My question is if diff servers has diffrent password then

what is the solution for this.

you must give Password and usrename.