Questions about connect to remote database

[Lesiok]

Maybe firewall on Yours computer blocks MS SQL ports off.

[stmk]

thanks for your reply.

so, my program setting is correct?

it is possible to access to the remote database by qt programming?

[tbscope]

it is possible to access to the remote database by qt programming?

I already answered you that in the other post on this same forum asking the exact same question!
The problem is you, you do not understand what you're doing. I suggest you read as much as you can about the subject.