查询自动生成Guid列

--newid()可以在查询的时候自动生成Guid列

select   top   10   *,newid()   as   Random   from   ywle where   ywlename=''   ordey   by   Random       

--创建对应的列  用 uniqueidentifier 类型

IF NOT EXISTS (
        SELECT *
        FROM dbo.SysObjects
        WHERE ID = object_id(N'[RMA_ExchangeOrderAddTempInfo]')
            AND OBJECTPROPERTY(ID, 'IsTable') = 1
        )
BEGIN

SET ANSI_NULLS ON

SET QUOTED_IDENTIFIER ON

CREATE TABLE [dbo].[RMA_ExchangeOrderAddTempInfo](
    [Id] [int] IDENTITY(1,1) NOT NULL,
    RandNum uniqueidentifier  NULL,
    )
END

GO

        /// <summary>
        /// 随机数作主键(接收和传参在后台用Guid类型)
        /// </summary>
        public Guid RandNum { get; set; }