Question

获取空值我试图获取xml元素但无法提取项目的值和来自 "<?xml version="1.0" encoding="UTF-8"?> <xsl:stylesheet version="2.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform" xmlns:ns0="http://edd.att.com/cnmeddservice" xmlns:xs="http://www.w3.org/2001/XMLSchema" xmlns:fn="http://www.w3.org/2005/xpath-functions" exclude-result-prefixes="ns0 xs fn"> <xsl:output method="xml" encoding="UTF-8" indent="yes"/> <xsl:template match="/"> <emailRequest xmlns="http://egs.att.com/EGSService"> <xsl:attribute name="project" namespace="" select="'MYWORLD'"/> <xsl:attribute name="region" namespace="" select="'RNSALL'"/> <xsl:attribute name="letterType" namespace="" select="'BBUDO100'"/> <xsl:attribute name="customerType" namespace="" select="'C'"/> <xsl:for-each select="ns0:bbuRequest"> <xsl:attribute name="language" namespace="" select="fn:string(@language)"/> </xsl:for-each> <retryIndicator> <xsl:sequence select="'N'"/> </retryIndicator> <ban> <xsl:sequence select="'9999999999'"/> </ban> <header> <xsl:for-each select="ns0:bbuRequest/ns0:destinations/ns0:emailAddress1"> <to> <xsl:sequence select="fn:string(.)"/> </to> </xsl:for-each> <xsl:for-each select="ns0:bbuRequest/ns0:destinations/ns0:emailAddress2"> <to> <xsl:sequence select="fn:string(.)"/> </to> </xsl:for-each> <from> <xsl:sequence select="'att'"/> </from> </header> <body> <templateData> <xsl:for-each select="ns0:bbuRequest"> <dataField> <xsl:attribute name="name"> <xsl:value-of select="'thresholddate'"/> </xsl:attribute> <xsl:choose> <xsl:when test="string((string-length(string(ns0:thresholdDate)) > 10)) = 'true'"> <xsl:value-of select="substring(string(ns0:thresholdDate), 0, 11)"/> </xsl:when> <xsl:otherwise> <xsl:value-of select="string(ns0:thresholdDate)"/> </xsl:otherwise> </xsl:choose> </dataField> </xsl:for-each> </templateData> </body> </emailRequest> </xsl:template> </xsl:stylesheet>"

select  EXTRACT(xmltype(column),
                             '//from') from table
                             where rownum <5


select XMLTYPE(xslt).EXTRACT('//emailRequest/@project','xmlns:xsl="http://www.w3.org/1999/XSL/Transform"').GETSTRINGVAL(),xslt  from edd_egs_config
where rownum <2

尝试以上但没有运气

Answer 1

您应该告诉Oracle两个使用过的命名空间：

SELECT utl_i18n.unescape_reference(XMLTYPE (xslt).EXTRACT ('//from/xsl:sequence/@select', 'xmlns:xsl="http://www.w3.org/1999/XSL/Transform" xmlns="http://egs.att.com/EGSService"').GETSTRINGVAL (), xslt
  FROM edd_egs_config
 WHERE ROWNUM < 5

并更改第二个中的路径和名称空间：

SELECT utl_i18n.unescape_reference(XMLTYPE (xslt).EXTRACT ('//emailRequest/xsl:attribute[@name="project"]/@select',  'xmlns:xsl="http://www.w3.org/1999/XSL/Transform" xmlns="http://egs.att.com/EGSService"').GETSTRINGVAL (), xslt
  FROM edd_egs_config
 WHERE ROWNUM < 2

从clob列获取错误提取xml元素

1 个答案: