Doubts

hi

in sql server2005

i am using query in 1st method

(insert into <destinationtable>(no,name)

select a.no,a.name from <sourcetable> a left outer join <destination table> b on a.no=b.no where b.no is null)

2nd method

(insert into <destinationtable>(no,name)

select * from <sourcetable> except <destination table>

Both methods are executing Please tell me which method is executing fast and good performance method tell me reasons..

Thanks

Ram