SQL DATEADD() 原来日期时间上增加日期时间 函数

update [dbo].[Table] set [ExpirationDate]= DATEADD(YEAR,1, [ExpirationDate])where RenewId =72 and LockDeviceUuid is not null and LockDeviceUuid!=''and IsLock=1 and IsUse=1and Id=70772