insert row if not exit -MSSQL

How to insert a row in MS SQL if the row already not inserted. There are two approach for this task

Solution 1

If Not Exists(select * from REP where NAME=? AND CODE='SALIH')

Begin

insert into REP (NAME,CODE) values ('SALIH','SALIH')

End

Solution 2

insert into REP (code,NAME)

 Select 'SAFVAN1','SAFVAN' Where not exists(select * from REP where code='SAFVAN1' AND NAME='SAFVAN')