将逗号分隔的主数据替换为列中的描述

Question

有2个SQL Server表：

产品：

Name               Status Code
------------------------------------
Product 1          1001, 1003
Product 2          1001, 1005, 1006

状态：

Code               Description
------------------------------------
1001               State A
1003               State B
1005               State C
1006               State D
...

我希望得到类似的内容：

Product          Status
---------------------------------------------
Product 1        State A, State B
Product 2        State A, State C, State D

Answer 1

您可以使用如下查询：

的 See working demo

create table Products (Name varchar(100), [Status Code] varchar(100));
insert into Products values
('Product 1', '1001, 1003')
,('Product 2', '1001, 1005, 1006');
create table [Status] (Code varchar(100),      Description varchar(100));
insert into [Status] values
('1001',   'State A')
,('1003',   'State B')
,('1005',   'State C')
,('1006',   'State D')

; WITH X AS 
(
    SELECT 
     P1.Name,
     S.Description
    FROM
     (
     SELECT *,
     cast('<X>'+replace(P.[Status Code],',','</X><X>')+'</X>' as XML) AS xmlprods FROM Products P
     )P1
     CROSS APPLY
     ( 
     SELECT fdata.D.value('.','varchar(100)') AS splitdata 
     FROM P1.xmlprods.nodes('X') AS fdata(D)) O
     LEFT JOIN [Status] S
     ON S.Code=  LTRIM(RTRIM(O.splitdata ))
    ) 

SELECT 
    Name,
    Description= STUFF((
  SELECT ',' + Description FROM x AS x2 
  WHERE x2.Name = x.Name
  ORDER BY Name FOR XML PATH, 
  TYPE).value(N'.[1]',N'varchar(max)'), 1, 1, '')
  FROM 
  X
GROUP BY Name 

Answer 2

你可以试试这个。我使用了临时表，但你可以使用任何你想要的方法

  

SELECT p.Product，p.Status，s.Description INTO #tmp FROM（     SELECT Name Product，TRIM（value）Status FROM tblProduct CROSS   申请STRING_SPLIT（TRIM（StatusCode），＆＃39;，＆＃39;））p JOIN tblStatus s ON   s.Code = p.Status

     

选择不同的产品       ， 东西（（           选择＆＃39;，＆＃39; + tmp2.Description           来自#tmp tmp2           其中tmp2.Product = tmp1.Product           按tmp2.Product排序           用于xml路径（＆＃39;＆＃39;）       ），1,1，＆＃39;＆＃39;）作为StatusCode来自#tmp tmp1 group by Product

Answer 3

查询下方将有助于将任何逗号分隔为列表。

SELECT A.OtherID, 
       Split.a.value('.', 'VARCHAR(100)') AS Data
FROM 
(
    SELECT OtherID, 
           CAST ('<M>' + REPLACE(Data, ',', '</M><M>') + '</M>' AS XML) AS Data 
    FROM  Table1
) AS A CROSS APPLY Data.nodes ('/M') AS Split(a)