Add two columns in one row

Hi,

I am having two tables
One table: campid,primarykey ,surname varchar(),Givenname varchar(50)
second table: Rid int, campid,,surname varchar(),Givenname varchar(50)

how to retrieve these tables in a single row
like
in first table: campid,surname,givenname
1 xyz xyz

in first table: campid,surname,givenname
1 abc abc
2 asdf adf

i want to output like this

campid surname givenname
1 abc abc

1 xyz xyz

2 asdf adf

How to do this

Regards
Venkatesh