怎么写东西功能？ | 怎么写东西功能

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问题描述

我正在尝试编写一个查询，但没有解决错误部分..

这里我提到了我的查询..

I am trying to write one query but did't get to solve the error part..

here i mentioned my query..

SELECT DISTINCT empcode,
  STUFF(
  (
    SELECT distinct ',' + Cast(Day([Date]) AS varchar)
    FROM dcr p1
    WHERE p.empcode= p1.empcode
    FOR XML PATH(''), TYPE
  )
  --.value('.', 'NVARCHAR(MAX)')
  ,1,1,'') as DateConcate
FROM dcr p;

但收到错误..

but getting error..

Msg 8116, Level 16, State 1, Line 1<br />
Argument data type xml is invalid for argument 1 of stuff function.

推荐答案

SELECT DISTINCT empcode, STUFF((
    SELECT distinct ',' + Cast(Day([Date]) AS varchar(20))
    FROM dcr p1
    WHERE p.empcode= p1.empcode
    FOR XML PATH('')),1,1,'') as DateConcate
FROM dcr p;

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