ET IDENTITY_INSERT
允许将显式值插入表的标识列中。
语法
SET IDENTITY_INSERT [ database.[ owner.] ] { table } { ON | OFF }
SET IDENTITY_INSERT dbo.UserDB ON INSERT INTO UserDB(ID,UserName,HomeURL) VALUES (2,‘NULL‘,‘www.51laugh.cn‘) PRINT ‘OK思密达‘ SET IDENTITY_INSERT dbo.UserDB OFF
原文：https://www.cnblogs.com/Jeremy2001/p/9973898.html