count without group

Question

I have one table named GUYS(ID,NAME,PHONE) and i need to add a count of how many guys have the same name and at the same time show all of them so i can\'t group them. exampl

Answer 1

DECLARE @tbl table 
(ID int,NAME varchar(20), PHONE int)
insert into @tbl
select 
1  ,'John',  335   
union all
select 
2  ,'Harry', 444
union all
select 
3  ,'James', 367
union all
select 
4  ,'John',  742
union all
select 
5  ,'John',  654

SELECT
 ID
 , Name
 , Phone
 , count(*) over(partition by Name)
FROM @tbl 
ORDER BY ID