DBCC CHECKIDENT(‘TableName‘, RESEED, 0)
http://stackoverflow.com/questions/16971/how-do-i-reset-an-increment-identitys-starting-value-in-sql-server
SQL SERVER 自增长标识列(Auto Increment Identity)的标识种子复位
原文：http://www.cnblogs.com/maizhongfei/p/5372689.html