Question

创建表脚本：

CREATE TABLE #tempClient 
(
     ClientCode int,
     ClientName nvarchar(250),
     BranchType varchar(1), 
     Address nvarchar(250), 
     Mobile Nvarchar(250), 
     HomePh nvarchar(250)
)

INSERT INTO #tmpClient 
VALUES (1001, 'Test Client', 'H', 'Maxis Street Petaling Jaya', '0125566789', '0355234678'),
       (1001, 'Test Client', 'B', 'J street','0168899123', ''),
       (1002, 'SUper Client', 'H', 'Bukit Bintang', '01289898', '03232232'),
       (1002, 'Super Client', 'B', 'Klang Road', '0168892345', ''),
       (1002, 'Super Client', 'B', 'Puteri', '016223344', '035222322')

我有一个要求，即客户端有一个总部和多个分支机构，所以我想动态地显示行数据。我正在尝试使用枢轴，但我无法提出任何建议

输出应为：

ClientCode  ClientName  BranchType  Address                       Mobile         HomePh      BAddr1     BMobile1   BHomePh1  BAddr2  BMobile2    BHomePh2
1001        Test Client  H          Maxis Street Petaling Jaya    0125566789     0355234678  J street   0168899123  NULL     NULL     NULL        NULL
1002        SuperClient  H          Bukit Bintang                 01289898       03232232    Klang Road 0168892345  NULL     Puteri   016223344   035222322

Answer 1

我无法完全达到答案，但在查询之下我会想到的伎俩。您应该在查询中采用唯一的1 Row_number。

DECLARE @limit INT, 
        @counter INT =1,
        @dynamicSQL NVARCHAR(MAX)
 Set @limit = (Select MAX(countClientcode) FROM (Select COUNT(ClientCode) As countClientcode,ClientCode FROM #tempClient Group By ClientCode)t)
 SET @dynamicSQL = 'Select  ROW_NUMBER() OVER(PARTITION BY t1.ClientCode Order By t1.ClientCode),* FROM #tempClient t1'
WHILE @counter < @limit
BEGIN
    SET @dynamicSQL += ' LEFT JOIN #tempClient t'+CONVERT(NVARCHAR(5),@counter+1)
                        +' ON t'+CONVERT(NVARCHAR(5),@counter)
                            +'.ClientCode = t'+CONVERT(NVARCHAR(5),@counter+1)
                                +'.ClientCode AND t'+CONVERT(NVARCHAR(5),@counter+1)
                                    +'.BranchType = ''B'' AND t'+CONVERT(NVARCHAR(5),@counter)
                                        +'.Address <> t'+CONVERT(NVARCHAR(5),@counter+1)+'.Address'
    SET @counter +=1
END

SET @dynamicSQL += ' WHERE t1.BranchType = ''H'''
EXEC( @dynamicSQL)

SQL Server行到列方式

1 个答案: