第三方将提供我需要粉碎成SQL Server关系格式的XML。 XML在某些方面很不寻常
显然，为了更灵活，XML提供了一个带有“columnNames”的部分。之后提供的实际数据没有不同的元素名称，我想我需要根据顺序映射列名。
提供实际数据的“行”部分没有标题属性或其他方式关联行中的一组字段。
以下是数据的简化版本：
<ReportData>
<ColumnName>SOLD_DATE</ColumnName>
<ColumnName>STORE_NUMBER</ColumnName>
<ColumnName>PHONE_NUMBER</ColumnName>
<ColumnName>FAX_NUMBER</ColumnName>
<Row>
<Col>03/31/2016</Col>
<Col>1234</Col>
<Col>(425) 673-7065</Col>
<Col>(425) 278-4974</Col>
</Row>
<Row>
<Col>05/05/2016</Col>
<Col>3456</Col>
<Col>(425) 555-7065</Col>
<Col>(425) 444-4974</Col>
</Row>
</ReportData>
如何将其转换为表格：
Sold_Date Store_Number Phone_Number Fax_Number
3/31/2016 1234 (425) 673-7065 (425) 278-4974
5/5/2016 3456 (425) 555-7065 (425) 444-4974
感谢您的任何想法。我最初考虑使用带有边缘表的OpenXML来利用父/兄弟节点值，但似乎应该有更好的方法。
答案 0 :(得分：2)
如果您需要这样的输出，需要动态命名列。这是不可能的 - 除非您使用动态SQL 。试试这个：
07-15 03:53:11.298 30926-30956/com.test.skintest E/AndroidRuntime: FATAL EXCEPTION: GLThread 14997
Process: com.test.skintest, PID: 30926
com.badlogic.gdx.utils.SerializationException: Error reading file: uiskin.json
at com.badlogic.gdx.scenes.scene2d.ui.Skin.load(Skin.java:97)
at com.badlogic.gdx.scenes.scene2d.ui.Skin.<init>(Skin.java:74)
at com.test.skintest.MainClass.create(MainClass.java:22)
at com.badlogic.gdx.backends.android.AndroidGraphics.onSurfaceChanged(AndroidGraphics.java:290)
at android.opengl.GLSurfaceView$GLThread.guardedRun(GLSurfaceView.java:1511)
at android.opengl.GLSurfaceView$GLThread.run(GLSurfaceView.java:1239)
Caused by: com.badlogic.gdx.utils.SerializationException: Error reading file: uiskin.json
at com.badlogic.gdx.utils.Json.fromJson(Json.java:694)
at com.badlogic.gdx.scenes.scene2d.ui.Skin.load(Skin.java:95)
at com.badlogic.gdx.scenes.scene2d.ui.Skin.<init>(Skin.java:74)
at com.test.skintest.MainClass.create(MainClass.java:22)
at com.badlogic.gdx.backends.android.AndroidGraphics.onSurfaceChanged(AndroidGraphics.java:290)
at android.opengl.GLSurfaceView$GLThread.guardedRun(GLSurfaceView.java:1511)
at android.opengl.GLSurfaceView$GLThread.run(GLSurfaceView.java:1239)
Caused by: com.badlogic.gdx.utils.SerializationException: Error parsing file: uiskin.json
at com.badlogic.gdx.utils.JsonReader.parse(JsonReader.java:77)
at com.badlogic.gdx.utils.Json.fromJson(Json.java:692)
at com.badlogic.gdx.scenes.scene2d.ui.Skin.load(Skin.java:95)
at com.badlogic.gdx.scenes.scene2d.ui.Skin.<init>(Skin.java:74)
at com.test.skintest.MainClass.create(MainClass.java:22)
at com.badlogic.gdx.backends.android.AndroidGraphics.onSurfaceChanged(AndroidGraphics.java:290)
at android.opengl.GLSurfaceView$GLThread.guardedRun(GLSurfaceView.java:1511)
at android.opengl.GLSurfaceView$GLThread.run(GLSurfaceView.java:1239)
Caused by: com.badlogic.gdx.utils.GdxRuntimeException: Error reading file: uiskin.json (Internal)
at com.badlogic.gdx.backends.android.AndroidFileHandle.read(AndroidFileHandle.java:77)
at com.badlogic.gdx.files.FileHandle.reader(FileHandle.java:163)
at com.badlogic.gdx.utils.JsonReader.parse(JsonReader.java:75)
at com.badlogic.gdx.utils.Json.fromJson(Json.java:692)
at com.badlogic.gdx.scenes.scene2d.ui.Skin.load(Skin.java:95)
at com.badlogic.gdx.scenes.scene2d.ui.Skin.<init>(Skin.java:74)
at com.test.skintest.MainClass.create(MainClass.java:22)
at com.badlogic.gdx.backends.android.AndroidGraphics.onSurfaceChanged(AndroidGraphics.java:290)
at android.opengl.GLSurfaceView$GLThread.guardedRun(GLSurfaceView.java:1511)
at android.opengl.GLSurfaceView$GLThread.run(GLSurfaceView.java:1239)
Caused by: java.io.FileNotFoundException: uiskin.json
at android.content.res.AssetManager.openAsset(Native Method)
at android.content.res.AssetManager.open(AssetManager.java:334)
at android.content.res.AssetManager.open(AssetManager.java:308)
at com.badlogic.gdx.backends.android.AndroidFileHandle.read(AndroidFileHandle.java:75)
at com.badlogic.gdx.files.FileHandle.reader(FileHandle.java:163)
at com.badlogic.gdx.utils.JsonReader.parse(JsonReader.java:75)
at com.badlogic.gdx.utils.Json.fromJson(Json.java:692)
at com.badlogic.gdx.scenes.scene2d.ui.Skin.load(Skin.java:95)
at com.badlogic.gdx.scenes.scene2d.ui.Skin.<init>(Skin.java:74)
at com.test.skintest.MainClass.create(MainClass.java:22)
at com.badlogic.gdx.backends.android.AndroidGraphics.onSurfaceChanged(AndroidGraphics.java:290)
at android.opengl.GLSurfaceView$GLThread.guardedRun(GLSurfaceView.java:1511)
at android.opengl.GLSurfaceView$GLThread.run(GLSurfaceView.java:1239)
唯一可以依赖，是XML中的排序
DECLARE @xml XML=
'<ReportData>
<ColumnName>SOLD_DATE</ColumnName>
<ColumnName>STORE_NUMBER</ColumnName>
<ColumnName>PHONE_NUMBER</ColumnName>
<ColumnName>FAX_NUMBER</ColumnName>
<Row>
<Col>03/31/2016</Col>
<Col>1234</Col>
<Col>(425) 673-7065</Col>
<Col>(425) 278-4974</Col>
</Row>
<Row>
<Col>05/05/2016</Col>
<Col>3456</Col>
<Col>(425) 555-7065</Col>
<Col>(425) 444-4974</Col>
</Row>
</ReportData>';
表WITH ColumnNames AS
(
SELECT ROW_NUMBER() OVER(ORDER BY (SELECT NULL)) AS ColNr
,C.value('.','nvarchar(max)') AS Caption
FROM @xml.nodes('/ReportData/ColumnName') AS A(C)
)
,RowLines AS
(
SELECT ROW_NUMBER() OVER(ORDER BY (SELECT NULL)) AS RowNr
,R.query('.') AS RowXML
FROM @xml.nodes('/ReportData/Row') AS A(R)
)
,RowValues AS
(
SELECT RowNr
,ROW_NUMBER() OVER(PARTITION BY RowNr ORDER BY (SELECT NULL)) AS ValNr
,C.value('.','nvarchar(max)') AS ColVal
FROM RowLines
CROSS APPLY RowXML.nodes('Row/Col') AS A(C)
)
SELECT *
INTO #tmpResult
FROM RowValues
INNER JOIN ColumnNames ON ColNr=ValNr
ORDER BY RowNr,ValNr;
现在有这样的内容：
#tmpResult现在我们需要一个动态创建的+-------+-------+----------------+-------+--------------+
| RowNr | ValNr | ColVal | ColNr | Caption |
+-------+-------+----------------+-------+--------------+
| 1 | 1 | 03/31/2016 | 1 | SOLD_DATE |
+-------+-------+----------------+-------+--------------+
| 1 | 2 | 1234 | 2 | STORE_NUMBER |
+-------+-------+----------------+-------+--------------+
| 1 | 3 | (425) 673-7065 | 3 | PHONE_NUMBER |
+-------+-------+----------------+-------+--------------+
| 1 | 4 | (425) 278-4974 | 4 | FAX_NUMBER |
+-------+-------+----------------+-------+--------------+
| 2 | 1 | 05/05/2016 | 1 | SOLD_DATE |
+-------+-------+----------------+-------+--------------+
| 2 | 2 | 3456 | 2 | STORE_NUMBER |
+-------+-------+----------------+-------+--------------+
| 2 | 3 | (425) 555-7065 | 3 | PHONE_NUMBER |
+-------+-------+----------------+-------+--------------+
| 2 | 4 | (425) 444-4974 | 4 | FAX_NUMBER |
+-------+-------+----------------+-------+--------------+
语句：
PIVOT这就是结果：
DECLARE @colNames NVARCHAR(MAX)=
(
STUFF(
(
SELECT DISTINCT ',' + Caption + ''
FROM #tmpResult
FOR XML PATH('')
),1,1,''
)
);
DECLARE @cmd NVARCHAR(MAX)=
'SELECT p.*
FROM
(
SELECT RowNr,ColVal,Caption FROM #tmpResult
) AS tbl
PIVOT
(
MAX(ColVal) FOR Caption IN(' + @colNames + ')
) AS p;';
EXEC(@cmd);
清理
+-------+----------------+----------------+------------+--------------+
| RowNr | FAX_NUMBER | PHONE_NUMBER | SOLD_DATE | STORE_NUMBER |
+-------+----------------+----------------+------------+--------------+
| 1 | (425) 278-4974 | (425) 673-7065 | 03/31/2016 | 1234 |
+-------+----------------+----------------+------------+--------------+
| 2 | (425) 444-4974 | (425) 555-7065 | 05/05/2016 | 3456 |
+-------+----------------+----------------+------------+--------------+
答案 1 :(得分：1)
考虑查询<Row>个节点，然后按节点索引选择<Col>：
IF OBJECT_ID('tempdb..#demo', 'U') IS NOT NULL drop table #demo;
CREATE TABLE #demo (data xml)
INSERT INTO #demo (data)
VALUES('<ReportData>
<ColumnName>SOLD_DATE</ColumnName>
<ColumnName>STORE_NUMBER</ColumnName>
<ColumnName>PHONE_NUMBER</ColumnName>
<ColumnName>FAX_NUMBER</ColumnName>
<Row>
<Col>03/31/2016</Col>
<Col>1234</Col>
<Col>(425) 673-7065</Col>
<Col>(425) 278-4974</Col>
</Row>
<Row>
<Col>05/05/2016</Col>
<Col>3456</Col>
<Col>(425) 555-7065</Col>
<Col>(425) 444-4974</Col>
</Row>
</ReportData>');
SELECT
Sold_Date = item.value('(Col)[1]', 'varchar(50)'),
Store_Number = item.value('(Col)[2]', 'varchar(50)'),
Phone_Number = item.value('(Col)[3]', 'varchar(50)'),
Fax_Number = item.value('(Col)[4]', 'varchar(50)')
FROM #demo
CROSS APPLY
data.nodes('/ReportData/Row') AS dt(item);
-- Sold_Date Store_Number Phone_Number Fax_Number
-- 03/31/2016 1234 (425) 673-7065 (425) 278-4974
-- 05/05/2016 3456 (425) 555-7065 (425) 444-4974
答案 2 :(得分：0)
可能没有优雅的解决方案。至少可以将原始数据转换为更好的可读性。这是一个例子。
declare @x xml=
'<ReportData>
<ColumnName>SOLD_DATE</ColumnName>
<ColumnName>STORE_NUMBER</ColumnName>
<ColumnName>PHONE_NUMBER</ColumnName>
<ColumnName>FAX_NUMBER</ColumnName>
<Row>
<Col>03/31/2016</Col>
<Col>1234</Col>
<Col>(425) 673-7065</Col>
<Col>(425) 278-4974</Col>
</Row>
<Row>
<Col>05/05/2016</Col>
<Col>3456</Col>
<Col>(425) 555-7065</Col>
<Col>(425) 444-4974</Col>
</Row>
</ReportData>'
declare @data xml
;with nm as (--ColumnNames
select t.v.value('ColumnName[1]','varchar(20)') c1,
t.v.value('ColumnName[2]','varchar(20)') c2,
t.v.value('ColumnName[3]','varchar(20)') c3,
t.v.value('ColumnName[4]','varchar(20)') c4
from @x.nodes('ReportData') t(v)
)
,ro as (--rows
select t.v.value('Col[1]','varchar(20)') r1,
t.v.value('Col[2]','varchar(20)') r2,
t.v.value('Col[3]','varchar(20)') r3,
t.v.value('Col[4]','varchar(20)') r4
from @x.nodes('ReportData/Row') t(v)
)
select @data= (select cast('<row '+nm.c1+'="'+ro.r1+'" '
+nm.c2+'="'+ro.r2+'" '
+nm.c3+'="'+ro.r3+'" '
+nm.c4+'="'+ro.r4+'" />' as xml)
from ro
cross apply nm
for xml path(''),root)
select @data d
生成的XML看起来像这样。
<root>
<row SOLD_DATE="03/31/2016" STORE_NUMBER="1234" PHONE_NUMBER="(425) 673-7065" FAX_NUMBER="(425) 278-4974" />
<row SOLD_DATE="05/05/2016" STORE_NUMBER="3456" PHONE_NUMBER="(425) 555-7065" FAX_NUMBER="(425) 444-4974" />
</root>