一、判斷某個逗號隔開的字段中有某個值

FIND_IN_SET(‘a‘,‘a,b,c,d‘) 用 CHARINDEX(‘,‘+‘b‘+‘,‘ , ‘,‘+‘a,b,c‘+‘,‘) > 0 替代

二、模仿mysql的group_concat的示例

SELECT id,     
       val=( SELECT [value] +‘,‘     
               FROM tb AS b     
               WHERE b.id = a.id
               FOR XML PATH(‘‘)  )     
FROM tb AS a      
GROUP BY id

SELECT id,     
       [val]=STUFF( (SELECT ‘,‘+[value]     
                     FROM tb AS b     
                     WHERE b.id = a.id     
                     FOR XML PATH(‘‘)) , 1 , 1 , ‘‘ )    
FROM tb AS a      
GROUP BY id

--刪除、創建臨時表
drop table #table1;
select * into #table1
from (
SELECT myId,‘auto‘ as type
)allData
--把數據按myId分類鏈接，然後按鏈接後數據的長度倒序排序
select * from (
  select myId,
  val=STUFF( (SELECT ‘、‘+type     
                     FROM #table1 AS b     
                     WHERE b.myId = ta.myId     
                     FOR XML PATH(‘‘)) , 1 , 1 , ‘‘ )
  from #table1 ta
  group by myId
) dd order by LEN(val) desc

本文出自 “風之痕_雪虎” 博客，請務必保留此出處http://snowtiger.blog.51cto.com/12931578/1929498

sqlserver模仿mysql函數FIND_IN_SET,group_concat的功能