默认情况下，SSMS尝试连接到主服务器，但是您的新帐户无权访问主服务器；我假设只有用户数据库.

By default, SSMS tries to connect to master, but your new account does not have access to master; only the user database I presume.

在SSMS的登录屏幕上，还需要指定数据库名称.只需单击选项>> 图标，即可打开连接属性"选项卡.在其中，指定您要连接的数据库名称.

On the login screen of SSMS, you need to specify the database name as well; just click on the Options >> icon, which opens up the Connection Properties tab. In there, specify the database name you are trying to connect to.