How to connect the personal namespace with username & password

[#1]

There are more than one namespaces are created by different users with phoneix driver. When I connect the db with url: jdbc:phoenix:zk1,zk2,zk3:2181:/hbase-unsecure, the client (such as SQuirrel SQL) shows all of the namespacs. How should I do if I just want to see the namesapces which I created? And, how to set the permission to the namespace?

My HDP version: 2.6.1.5, phoenix 4.7.

Thank u so much :)