TSQL 根据表名生成UPDATE SELECT INSERT

USE [AdventureWorks2012]
go

IF object_id('USP_GENERATEDML') IS NOT NULL
BEGIN 
    PRINT 'Dropping procedure USP_GENERATEDML'
    DROP PROCEDURE [USP_GENERATEDML]  
    IF @@ERROR = 0 PRINT 'Procedure USP_GENERATEDML dropped'
END
go

CREATE PROCEDURE [USP_GENERATEDML]
 
@TBLNAME NVARCHAR(100)
AS
BEGIN
    SET NOCOUNT ON ;

DECLARE @result as TABLE (
[PREFIX] [varchar](1500)  ,
[NAME] [nvarchar](2630)  ,
[ENDFIX] [nvarchar](2800)  ,
[STARTFLAG] [bigint]  ,
[TABLE_SCHEMA]  [nvarchar](2800)  ,
[TABLE_NAME]  [nvarchar](2800)  ,
[FLAG] [varchar](600)  
)  
; 
WITH cte AS (
        SELECT ROW_NUMBER() OVER(
                PARTITION BY t.TABLE_SCHEMA,
                t.TABLE_NAME ORDER BY c.name ASC
            )  AS  startflag, ROW_NUMBER() OVER(
                PARTITION BY t.TABLE_SCHEMA,
                t.TABLE_NAME ORDER BY c.name DESC
            )  AS endflag, QUOTENAME(t.TABLE_SCHEMA) AS TABLE_SCHEMA,QUOTENAME(t.TABLE_NAME) AS TABLE_NAME, QUOTENAME(c.name) AS name
        FROM   INFORMATION_SCHEMA.TABLES AS t
            INNER JOIN syscolumns c
                    ON  id = OBJECT_ID( t.TABLE_SCHEMA + '.' + t.TABLE_NAME)
        WHERE  t.TABLE_TYPE = 'BASE TABLE'
    )
SELECT * INTO #COLHELP 
FROM   cte  t  
INSERT INTO @result
SELECT CASE T.STARTFLAG WHEN 1 THEN 'SELECT ' ELSE '' END AS PREFIX,
T.NAME,CASE T.ENDFLAG WHEN 1 THEN ' FROM '+t.TABLE_SCHEMA+'.'+t.TABLE_NAME ELSE ',' END AS ENDFIX,
T.STARTFLAG,t.TABLE_SCHEMA, t.TABLE_NAME,'SELECT' AS FLAG  
FROM #COLHELP T  
UNION
SELECT CASE T.STARTFLAG WHEN 1 THEN 'INSERT INTO '+t.TABLE_SCHEMA+'.'+t.TABLE_NAME+'( ' ELSE '' END AS PREFIX,
T.NAME,CASE T.ENDFLAG WHEN 1 THEN ' ) '  ELSE ',' END AS ENDFIX,
T.STARTFLAG,t.TABLE_SCHEMA, t.TABLE_NAME,'INSERT' AS FLAG
FROM #COLHELP T  
UNION
SELECT CASE T.STARTFLAG WHEN 1 THEN 'VALUES ( ' ELSE '' END AS PREFIX,
'@'+SUBSTRING(T.NAME,2,LEN(T.NAME)-2) AS NAME ,CASE T.ENDFLAG WHEN 1 THEN ' ) '  ELSE ',' END AS ENDFIX,
T.STARTFLAG+5000 AS STARTFLAG,t.TABLE_SCHEMA, t.TABLE_NAME,'INSERT' AS FLAG
FROM #COLHELP T   
UNION
 
SELECT CASE T.STARTFLAG WHEN 1 THEN 'UPDATE T1 SET  ' ELSE '' END AS PREFIX,
'T1.'+T.NAME+'=T2.'+T.NAME AS NAME ,CASE T.ENDFLAG WHEN 1 THEN
    ' FROM '+t.TABLE_SCHEMA+'.'+t.TABLE_NAME+' T1 INNER JOIN T2' ELSE ',' END AS ENDFIX,
T.STARTFLAG,t.TABLE_SCHEMA, t.TABLE_NAME,'UPDATE' AS FLAG  
FROM #COLHELP T  


if exists(select * from tempdb..sysobjects where id=object_id('tempdb..#COLHELP'))
DROP TABLE #COLHELP 
--SELECT * FROM #RESULT ORDER BY t.TABLE_SCHEMA, t.TABLE_NAME,T.FLAG,t.startflag 
IF @tblname='ALL'
SELECT t.PREFIX, t.NAME, t.ENDFIX,CASE  t.STARTFLAG when 1 then  '/*'+t.flag+' '+ t.TABLE_SCHEMA+'.'+ t.TABLE_NAME+'*/'  ELSE '' END AS anno
FROM @result AS t ORDER BY  t.TABLE_SCHEMA, t.TABLE_NAME,t.flag,t.startflag 
 
ELSE
    SELECT t.PREFIX, t.NAME, t.ENDFIX,CASE  t.STARTFLAG when 1 then  '/*'+t.flag+' '+ t.TABLE_SCHEMA+'.'+ t.TABLE_NAME+'*/'  ELSE '' END AS anno
FROM @result AS t
WHERE OBJECT_ID( t.TABLE_SCHEMA + '.' + t.TABLE_NAME)=OBJECT_ID(@tblname)
 ORDER BY  t.TABLE_SCHEMA, t.TABLE_NAME,t.flag,t.startflag 
END
go

IF @@ERROR = 0 PRINT 'Procedure USP_GENERATEDML created'
go
EXEC [USP_GENERATEDML] 'PERSON.PERSON'

EXEC [USP_GENERATEDML] 'ALL'