sqlserver merge into

create table #ttt(id int,name nvarchar(10));merge into #ttt t using (select 1 as id ,‘eee‘ as name ) b on (t.id = b.id) when matched then update set t.name = b.name when not matched then insert(id,name) values(b.id,b.name);

select * from #ttt;

merge into  ausing  b on (a.id = b.id) when matched then update set a.name = b.name when not matched then insert(id,name) values(b.id,b.name);

select * from a;