LASTMOVE循环无法正常工作

本文介绍了LASTMOVE循环无法正常工作的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！ 问题描述

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>

完整的xml在这里 www.speedyshare/MgCCA /download/ItemMaster-2.xml

我需要使用属性TYPE ="BRAND"来获取分类的值，但是使用下面的代码，它只获取我不希望使用的属性TYPE ="HOMOLOGATION CLASS"的分类，因为我正在调用"BRAND".我尝试应用LASTMOVE但工作量很大.请告诉我我错了.

I need to fetch the value of Classification with attribute TYPE= "BRAND" but with below code, it only fetchs the classification with attribute TYPE = "HOMOLOGATION CLASS" which I dont want since I am calling for "BRAND". I tried to apply LASTMOVE but dosent work. Please tell me where I am wrong.

我还必须获取其他值，例如类型"LP"内的代码.

I have to fetch other values also like codes inside the type -"LP" also.

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;

谢谢

尝试以下建议代码

这是跟踪日志

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.

推荐答案

尝试一下:

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;