There are roughly speaking two kinds of systems. The kind of system where Bachelor is the default degree you get from university, and you can go on to get a Masters and/or a doctorate. And the other kind of system where the default university degree is a combined Bachelor and Masters, and you can study further to get a doctorate. The latter kind is in use in a lot of continental Europe, at least.
There are roughly speaking two kinds of systems. The kind of system where Bachelor is the default degree you get from university, and you can go on to get a Masters and/or a doctorate. And the other kind of system where the default university degree is a combined Bachelor and Masters, and you can study further to get a doctorate. The latter kind is in use in a lot of continental Europe, at least.