如何向一个自增字段插值

-- 如何向一个自增字段插值

create   table tablename(id int   identity ( 1 , 1 ))
go
insert   into tablename default   values
go


set   identity_insert   tablename on
insert tablename(id) select   11
select   *   from tablename
go
-- set identity_insert   tablename  off

drop   table tablename

/*
id
----
1
11
*/