MERGE 用法

1、不带输出的
SET ANSI_NULLS ON
GO
SET QUOTED_IDENTIFIER ON
GO
ALTER proc [dbo].[InsertShiGongJiao] 
@number varchar(100),
@companyindex int,
@lineid int,
@stationid int,
@direct int,
@stationname nvarchar(50),
@stationindex int,
@distance int,
@type int
as 
MERGE dbo.t_BusArrive_ShiGongJiao AS target
    USING (SELECT @number n)  AS source
    ON (target.number=source.n)
    WHEN MATCHED THEN
    UPDATE SET companyindex=@companyindex,
            lineid=@lineid,
            direct=@direct,
            stationname=@stationname,
            stationid=@stationid,
            stationindex=@stationindex,
            distance=@distance,
            type=@type,
            updatetime=GETDATE()
    WHEN NOT MATCHED THEN
    INSERT(number,lineid,companyindex,direct,stationid,stationname,distance,stationindex,updatetime,type)
VALUES(    @number,@lineid,@companyindex,@direct,@stationid,@stationname,@distance,@stationindex,GETDATE(),@type);

2、带输出的

ALTER PROCEDURE [dbo].[FG_BM_MakeLSH_test] (
@TYPE VARCHAR(20),
@mc    VARCHAR(12), 
@lsh    INT OUTPUT) 
AS
MERGE FGHIS5_ZY.dbo.住院_编码流水号 AS T 
USING(SELECT @mc n,@TYPE t) AS source
ON (T.名称=source.n AND T.分类=source.t)
WHEN MATCHED THEN 
UPDATE SET 流水号 = 流水号 + @lsh,更新时间=GETDATE() 
WHEN NOT MATCHED THEN 
INSERT(分类,名称,流水号,创建时间)VALUES (@TYPE,@mc,0,GETDATE())
OUTPUT Inserted.流水号 as 流水号;