SQL IDENTITY INSERT问题

Question

您能否请帮助。

我运行下面的查询：

set identity_insert sites_dynamic ON 

insert into sites_dynamic 
    select * 
    from gpbatt_archive.dbo.sites_dynamic 
    where site_serial_number = 49955 

set identity_insert sites_dynamic OFF 

set identity_insert sites_static ON 

insert into sites_static 
    select * 
    from gpbatt_archive.dbo.sites_static 
    where static_site_id in (select static_site_id 
          from gpbatt_archive.dbo.sites_dynamic 
          where site_serial_number = 49955) 

set identity_insert sites_static OFF 

返回错误是：

消息8101，级别16，状态1，行3
在表中标识列的显式值'sites_dynamic'只能在使用列列表且IDENTITY_INSERT为ON时指定。

任何人都可以帮助我吗？我是新手

Answer 1

使用set identity_insert <tablename> on时，您的插入语句必须包含列列表。

这里是做正确的方法：

set identity_insert targetTable on 

insert into targetTable (col1, col2 [, coln]) 
select col1, col2 [, coln] 
from sourceTable 

set identity_insert targetTable off 

正如评论说Nick.McDermaid - 这是最好的做法是始终包括列清单。