TSQL Comparing two Sets

Question

When two sets are given

s1 ={ a,b,c,d} s2={b,c,d,a}

(i.e)

TableA

Item
a
b
c
d

TableB

Item
b
c
d
a

How to write Sql quer

Answer 1

My monstrocity:

;with SetA as
(select 'a' c union
select 'b' union
select 'c') 
, SetB as 
(select 'b' c union
select 'c' union
select 'a' union 
select 'd'
) 
select case (select count(*) from (
select * from SetA except select * from SetB
union 
select * from SetB except select * from SetA
)t)
when 0 then 'Equal' else 'NotEqual' end 'Equality'