在 SSIS/SQL 中的列数据类型上透视 Table

Question

我受命改造以下table:

    +---------------+----------+---------+-------------+-----+-------------+--------+
    | AnnualRevenue |   City   | Company | CreatedDate | Id  | IsConverted | UserId |
    +---------------+----------+---------+-------------+-----+-------------+--------+
    | NULL          | New York | ABC     | 1/03/2015   | 123 |           0 | A1     |
    | 200           | NULL     | DEF     | 2/03/2016   | 456 |           1 | A1     |
    +---------------+----------+---------+-------------+-----+-------------+--------+

在 SQL 查询或 SSIS 中：

+-----+---------------+----------+-----------+------+------+--------+
| Id  |     name      | nvarchar |   date    | int  | bit  | UserId |
+-----+---------------+----------+-----------+------+------+--------+
| 123 | AnnualRevenue | NULL     | NULL      | NULL | NULL | A1     |
| 123 | City          | New York | NULL      | NULL | NULL | A1     |
| 123 | Company       | ABC      | NULL      | NULL | NULL | A1     |
| 123 | CreatedDate   | NULL     | 1/03/2015 | NULL | NULL | A1     |
| 123 | IsConverted   | NULL     | NULL      | NULL | 0    | A1     |
| 456 | AnnualRevenue | NULL     | NULL      | 200  |      | A1     |
| 456 | City          | NULL     | NULL      | NULL | NULL | A1     |
| 456 | Company       | DEF      | NULL      | NULL | NULL | A1     |
| 456 | CreatedDate   | NULL     | 2/03/2016 | NULL | NULL | A1     |
| 456 | IsConverted   | NULL     | NULL      | NULL | 1    | A1     |
+-----+---------------+----------+-----------+------+------+--------+

我尝试在线研究并在 SSIS 中找到了 PIVOT 转换，但我以前从未使用过它。我无法弄清楚如何使用它来达到预期的结果。谁能指出我正确的方向？

Answer 1

此选项将动态地将您的数据和 link 数据类型转换为信息架构。

我应该注意，XML 字段名称 ID 和 UserId 区分大小写

例子

Select A.ID
      ,A.Name
      ,[nvarchar] = case when data_type='nvarchar' then value end
      ,[date]     = case when data_type='date'     then value end
      ,[int]      = case when data_type='int'      then value end
      ,[bit]      = case when data_type='bit'      then value end
      ,A.UserID
 From (
        Select C.*
         From  YourTable A
         Cross Apply (Select XMLData = cast((Select A.* For XML Raw) as xml)) B
         Cross Apply (
                        Select Id     = r.value('@Id','int')
                              ,UserID = r.value('@UserId','varchar(25)')
                              ,Name   = attr.value('local-name(.)','nvarchar(100)')
                              ,Value  = attr.value('.','nvarchar(max)') 
                         From  B.XMLData.nodes('/row') as A(r)
                         Cross Apply A.r.nodes('./@*') AS B(attr)
                         Where attr.value('local-name(.)','varchar(100)') not in ('Id','UserId')
                     ) C
       ) A
 Join (Select Column_Name,Data_Type From INFORMATION_SCHEMA.COLUMNS Where Table_Name='YourTable') B on B.Column_Name=A.Name

Returns

在 SSIS/SQL 中的列数据类型上透视 Table

Pivot Table on Column Datatype in SSIS/SQL

sql

tsql

sql-server

ssis

pivot