Question

我的xml看起来像

- <ItemMaster> 
     - <ItemMasterHeader> 
        + <ItemID> 
        + <ItemStatus> 
        + <UserArea> 
         - <Classification Type="HOMOLOGATION CLASS"> 
           - <Codes> 
             <Code>E</Code> 
           </Codes> 
         </Classification> 
       + <Classification Type="LP"> 
       + <Classification> 
        - <Classification Type="BRAND"> 
          - <Codes> 
              <Code>002</Code> 
          </Codes> 
        </Classification>

Yhe full xml在这里http://www.speedyshare.com/MgCCA/download/ItemMaster-2.xml

我需要使用属性TYPE =“BRAND”获取Classification的值，但是使用下面的代码，它只获取属性TYPE =“HOMOLOGATION CLASS”的分类，因为我要求“BRAND”，所以我不想要它。我试图申请LASTMOVE但是很有效。请告诉我我错在哪里。

我还需要获取其他值，例如类型中的代码 - “LP”。

DECLARE rResource REFERENCE TO InputRoot.XMLNSC.*:SyncItemMaster.*:DataArea.*:ItemMaster.*:ItemMasterHeader[1]; 
      SET rowCnt = rowCnt+1;       
      DECLARE LineCount INTEGER 1; 

      WHILE LASTMOVE(rResource) = TRUE DO    
      SET OutputRoot.XMLNSC.root.row[rowCnt].product_Info.TyreBrandCd = THE (SELECT  ITEM FIELDVALUE(T) FROM itemMaster.*:ItemMasterHeader[LineCount].*:Classification.*:Codes.*:Code AS T WHERE FIELDVALUE(itemMaster.*:ItemMasterHeader[LineCount].*:Classification.(XMLNSC.Attribute)Type) = 'BRAND'); 
            SET LineCount = LineCount + 1; 
      MOVE rResource NEXTSIBLING REPEAT TYPE NAME; 
       END WHILE;             
   RETURN TRUE; 
   END;

由于

使用以下建议代码

进行了审核

以下是跟踪日志

2013-05-10 18:32:27.218385 7732 UserTrace BIP2537I: Node 'WMB_9D1_PROD_SUB00_001.9D1_PROD': Executing statement ''SET temp = THE (SELECT T.Classification AS :Classification FROM myref AS T WHERE FIELDVALUE(T.Classification.(XMLNSC.Attribute)Type) = 'BRAND');'' at ('.WMB_9D1_PROD_SUB00_001.Main', '22.3').
2013-05-10 18:32:27.218393 7732 UserTrace BIP2538I: Node 'WMB_9D1_PROD_SUB00_001.9D1_PROD': Evaluating expression ''THE (SELECT T.Classification AS :Classification FROM myref AS T WHERE FIELDVALUE(T.Classification.(XMLNSC.Attribute)Type) = 'BRAND')'' at ('.WMB_9D1_PROD_SUB00_001.Main', '22.14').
2013-05-10 18:32:27.218400 7732 UserTrace BIP2572W: Node: 'WMB_9D1_PROD_SUB00_001.9D1_PROD': ('.WMB_9D1_PROD_SUB00_001.Main', '22.14') : Finding one and only SELECT result.
2013-05-10 18:32:27.218427 7732 UserTrace BIP2539I: Node 'WMB_9D1_PROD_SUB00_001.9D1_PROD': Evaluating expression ''myref'' at ('.WMB_9D1_PROD_SUB00_001.Main', '22.48'). This resolved to ''myref''. The result was ''ROW... Root Element Type=16777216 NameSpace='' Name='ItemMasterHeader' Value=NULL''.
2013-05-10 18:32:27.218437 7732 UserTrace BIP2539I: Node 'WMB_9D1_PROD_SUB00_001.9D1_PROD': Evaluating expression ''XMLNSC.Attribute'' at ('.WMB_9D1_PROD_SUB00_001.Main', '22.94'). This resolved to ''XMLNSC.Attribute''. The result was ''1095266992384''.
2013-05-10 18:32:27.218446 7732 UserTrace BIP2540I: Node 'WMB_9D1_PROD_SUB00_001.9D1_PROD': Finished evaluating expression ''FIELDVALUE(T.Classification.(XMLNSC.Attribute)Type)'' at ('.WMB_9D1_PROD_SUB00_001.Main', '22.65'). The result was '''HOMOLOGATION CLASS'''.
2013-05-10 18:32:27.218454 7732 UserTrace BIP2539I: Node 'WMB_9D1_PROD_SUB00_001.9D1_PROD': Evaluating expression ''FIELDVALUE(T.Classification.(XMLNSC.Attribute)Type) = 'BRAND''' at ('.WMB_9D1_PROD_SUB00_001.Main', '22.117'). This resolved to '''HOMOLOGATION CLASS' = 'BRAND'''. The result was ''FALSE''.
2013-05-10 18:32:27.218461 7732 UserTrace BIP2569W: Node 'WMB_9D1_PROD_SUB00_001.9D1_PROD': ('.WMB_9D1_PROD_SUB00_001.Main', '22.14') : WHERE clause evaluated to false or unknown. Iterating FROM clause.
2013-05-10 18:32:27.218469 7732 UserTrace BIP2570W: Node 'WMB_9D1_PROD_SUB00_001.9D1_PROD': ('.WMB_9D1_PROD_SUB00_001.Main', '22.14') : There were no items in the FROM clause satisfying the WHERE clause.
2013-05-10 18:32:27.218503 7732 UserTrace BIP2567I: Node 'WMB_9D1_PROD_SUB00_001.9D1_PROD': Assigning NULL to ''temp'', thus deleting it.

Answer 1

试试这个：

declare temp ROW;

SET temp = THE (SELECT T.Classification FROM rResource AS T WHERE FIELDVALUE(T.Classification.(XMLNSC.Attribute)Type) = 'BRAND');

OutputRoot.XMLNSC.root.row[rowCnt].product_Info.TyreBrandCd = temp.code;

Answer 2

我不确定你正在寻找什么样的地图。假设你想要的是（唯一的）'Code'，在每个'ItemMasterHeader'上具有正确属性的'Classification'上，出现在单独的'row'文件夹内的输出中，这里是代码：

CREATE PROCEDURE ExtractTyreCodes() BEGIN
        DECLARE rOutput REFERENCE TO OutputRoot;
        DECLARE rResource REFERENCE TO InputRoot.XMLNSC.*:SyncItemMaster.*:DataArea.*:ItemMaster;
        CREATE FIELD OutputRoot.XMLNSC.root AS rOutput;
        IF LASTMOVE(rResource) THEN 
        SET rOutput.row[] = SELECT 
                THE(SELECT C.*:Codes.*:Code AS TyreBrand
                    FROM T.*:Classification[] AS C 
                    WHERE C.(XMLNSC.Attribute)Type = 'BRAND') AS product_Info
                FROM rResource.*:ItemMasterHeader[] AS T;
        END IF;
END;

从这条消息开始：

<SyncItemMaster>
  <DataArea>
    <ItemMaster>
      <ItemMasterHeader>
        <ItemID/>
        <ItemStatus/>
        <UserArea/>
        <Classification Type="HOMOLOGATION CLASS">
          <Codes>
            <Code>E</Code>
          </Codes>
        </Classification>
        <Classification Type="LP"/>
        <Classification/>
        <Classification Type="BRAND">
          <Codes>
            <Code>002</Code>
          </Codes>
        </Classification>
      </ItemMasterHeader>
      <ItemMasterHeader>
        <ItemID/>
        <ItemStatus/>
        <UserArea/>
        <Classification Type="HOMOLOGATION CLASS">
          <Codes>
            <Code>F</Code>
          </Codes>
        </Classification>
        <Classification Type="LP"/>
        <Classification/>
        <Classification Type="BRAND">
          <Codes>
            <Code>005</Code>
          </Codes>
        </Classification>
      </ItemMasterHeader>
    </ItemMaster>
  </DataArea>
</SyncItemMaster>

你收到这条消息：

<root>
  <row>
    <product_Info>
      <TyreBrand>002</TyreBrand>
    </product_Info>
  </row>
  <row>
    <product_Info>
      <TyreBrand>005</TyreBrand>
    </product_Info>
  </row>
</root>

这会为每个'ItemMasterHeader'生成一个'row'文件夹，将每个'product_Info'文件夹放入其中，并在其中放置来自（Attribute）'Type'='BRAND'的'Classification'的代码

希望这会有所帮助。的问候，

LASTMOVE循环不起作用

2 个答案: