No, You do not have to create connection for each schema, But it is possible while making a connection you had specified some default schema, and then only that schema is visible in you database explorer tree.
Have you tried right click on the Database connection visible in DB Explorer window?
No, You do not have to create connection for each schema, But it is possible while making a connection you had specified some default schema, and then only that schema is visible in you database explorer tree.
Have you tried right click on the Database connection visible in DB Explorer window?