How to determine which columns are shared between two tables?

Question

Very new to SQL Sever here... I understand the concept of joining tables, etc. but what is the easiest way to determine which columns are shared?

Say for instance we ha

Answer 1

Use following query (name used to show coman columns list)

select name from syscolumns s1 where id = object_id('table1') and            exists(select 1 from syscolumns s2 where s2.name = s1.name and s2.id = object_id('table2'))