How to select a max row for each group in SQL ( with distinct code )

Question

Dear friends, 
My table is as show in below…  for each ‘grpid’ I want get row with Max tiv value and code should be distinct. Ie in result, code & grpid will come only once.
grpid
code
Tiv
2
GB
9
2
IN
7
1
GB
11
1
US
10
Result:    ( we are selecting   IN even though for grpid 2
 ‘GB’ has max value )
grpid
code
Tiv
2
IN
7
1
GB
11
-Sajid

Answer 1

Thanks for reply..
please see my  DML+  DL
CREATE TABLE [dbo].[tab](
[grpid] [int] NOT NULL,
[code] [varchar](2) NOT NULL,
[Tiv] [int] NOT NULL
) ON [PRIMARY]
delete from tab
insert into tab values (2 , 'GB' ,12)
insert into tab values (2 , 'IN' ,10)
insert into tab values (1 , 'GB' ,11)
insert into tab values (1 , 'US' ,10)
insert into tab values (3 , 'GB' ,10)
insert into tab values (3 , 'US' ,9)
insert into tab values (3 , 'UA' ,10)
insert into tab values (3 , 'IN' ,8)
Result:
grpid      code     
tiv
1             
US          10
2             
GB          12
3             
UA          10
Thanks in Advance..
-Sajid
CREATE TABLE [dbo].[tab](
[grpid] [int] NOT NULL,
[code] [varchar](2) NOT NULL,
[Tiv] [int] NOT NULL
) ON [PRIMARY]
delete from tab
insert into tab values (2 , 'GB' ,12)
insert into tab values (2 , 'IN' ,10)
insert into tab values (1 , 'GB' ,11)
insert into tab values (1 , 'US' ,10)
insert into tab values (3 , 'GB' ,10)
insert into tab values (3 , 'US' ,9)
insert into tab values (3 , 'UA' ,10)
insert into tab values (3 , 'IN' ,8)
;with mycte as
(select grpid,code,tiv , row_number() over(Partition by code Order by Tiv DESC) rn1, row_number() over(Partition by grpid Order by Tiv DESC) rn2
from tab)
,mycte1 as (Select *
, row_number() over(Partition by grpid, rn1 Order by rn2 ASC) rn3
from mycte
WHERE rn1=1
Select grpid,code,tiv from mycte1
Where rn3=1
drop table tab