select distinct of rows from a table of multiple duplicate columns

create table emp(empid int,empname varchar(50),sal money,status bit)

insert into emp select 1,'satya',20000,1 union all
select 1,'satya',20000,2 union all
select 1,'satya',20000,1000 union all
select 2,'sant',21000,-3 union all
select 3,'chclt',42000,0

alter table emp add cno int identity(1,1)

select empid, empname, sal from emp where cno in (select min(cno) from emp group by empid,empname,sal,comm,status)

output

empid empname sal
1           satya          20000
2           sant            21000
3           chclt           42000

alter table emp drop column cno

----------------------------------------------------

with x as(select *,row_number() over(partition by empid,empname,sal,comm,status order by empid) as count from emp)
delete from x where count>1