{"id":91474,"date":"2024-10-18T21:31:19","date_gmt":"2024-10-18T13:31:19","guid":{"rendered":"https:\/\/server.hk\/cnblog\/91474\/"},"modified":"2024-10-18T21:31:19","modified_gmt":"2024-10-18T13:31:19","slug":"ora-30968-xml-%e7%b4%a2%e5%bc%95%e7%9a%84%e7%84%a1%e6%95%88-xpath-%e6%88%96-namespace-%e9%81%b8%e9%a0%85-oracle-%e5%a0%b1%e9%8c%af-%e6%95%85%e9%9a%9c%e4%bf%ae%e5%be%a9-%e9%81%a0%e7%a8%8b%e8%99%95","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/91474\/","title":{"rendered":"ORA-30968: XML \u7d22\u5f15\u7684\u7121\u6548 XPATH \u6216 NAMESPACE \u9078\u9805 ORACLE \u5831\u932f \u6545\u969c\u4fee\u5fa9 \u9060\u7a0b\u8655\u7406"},"content":{"rendered":"<h1 id=\"ora-30968-xml-%e7%b4%a2%e5%bc%95%e7%9a%84%e7%84%a1%e6%95%88-xpath-%e6%88%96-namespace-%e9%81%b8%e9%a0%85-oracle-%e5%a0%b1%e9%8c%af-%e6%95%85%e9%9a%9c%e4%bf%ae%e5%be%a9-%e9%81%a0%e7%a8%8b%e8%99%95-WNQVFTAWwU\">ORA-30968: XML \u7d22\u5f15\u7684\u7121\u6548 XPATH \u6216 NAMESPACE \u9078\u9805 ORACLE \u5831\u932f \u6545\u969c\u4fee\u5fa9 \u9060\u7a0b\u8655\u7406<\/h1>\n<p>\u5728\u4f7f\u7528 Oracle \u6578\u64da\u5eab\u6642\uff0c\u958b\u767c\u8005\u548c\u6578\u64da\u5eab\u7ba1\u7406\u54e1\u53ef\u80fd\u6703\u9047\u5230\u5404\u7a2e\u932f\u8aa4\u4ee3\u78bc\uff0c\u5176\u4e2d\u4e4b\u4e00\u4fbf\u662f <code>ORA-30968<\/code>\u3002\u9019\u500b\u932f\u8aa4\u901a\u5e38\u8207 XML \u7d22\u5f15\u7684\u7121\u6548 XPATH \u6216 NAMESPACE \u9078\u9805\u6709\u95dc\u3002\u672c\u6587\u5c07\u6df1\u5165\u63a2\u8a0e\u9019\u500b\u932f\u8aa4\u7684\u6210\u56e0\u3001\u5f71\u97ff\u4ee5\u53ca\u5982\u4f55\u9032\u884c\u6545\u969c\u4fee\u5fa9\u3002<\/p>\n<h2 id=\"%e9%8c%af%e8%aa%a4%e6%a6%82%e8%bf%b0-WNQVFTAWwU\">\u932f\u8aa4\u6982\u8ff0<\/h2>\n<p>\u7576\u60a8\u5728 Oracle \u6578\u64da\u5eab\u4e2d\u4f7f\u7528 XML \u7d22\u5f15\u6642\uff0c\u53ef\u80fd\u6703\u9047\u5230 <code>ORA-30968<\/code> \u932f\u8aa4\u3002\u9019\u901a\u5e38\u8868\u793a\u60a8\u5728\u67e5\u8a62 XML \u6578\u64da\u6642\u6240\u4f7f\u7528\u7684 XPATH \u8868\u9054\u5f0f\u6216 NAMESPACE \u5b9a\u7fa9\u4e0d\u6b63\u78ba\u3002\u9019\u7a2e\u60c5\u6cc1\u53ef\u80fd\u6703\u5c0e\u81f4\u67e5\u8a62\u5931\u6557\uff0c\u5f71\u97ff\u61c9\u7528\u7a0b\u5e8f\u7684\u6b63\u5e38\u904b\u884c\u3002<\/p>\n<h2 id=\"%e9%8c%af%e8%aa%a4%e5%8e%9f%e5%9b%a0-WNQVFTAWwU\">\u932f\u8aa4\u539f\u56e0<\/h2>\n<p>\u9020\u6210 <code>ORA-30968<\/code> \u932f\u8aa4\u7684\u539f\u56e0\u4e3b\u8981\u6709\u4ee5\u4e0b\u5e7e\u500b\uff1a<\/p>\n<ul>\n<li><strong>XPATH \u8868\u9054\u5f0f\u932f\u8aa4\uff1a<\/strong>\u5982\u679c\u60a8\u5728\u67e5\u8a62\u4e2d\u4f7f\u7528\u7684 XPATH \u8868\u9054\u5f0f\u4e0d\u7b26\u5408 XML \u7d50\u69cb\uff0c\u5247\u6703\u5c0e\u81f4\u6b64\u932f\u8aa4\u3002<\/li>\n<li><strong>NAMESPACE \u5b9a\u7fa9\u4e0d\u6b63\u78ba\uff1a<\/strong>\u5728 XML \u4e2d\uff0cNAMESPACE \u7528\u65bc\u5340\u5206\u4e0d\u540c\u7684\u5143\u7d20\u548c\u5c6c\u6027\u3002\u5982\u679c NAMESPACE \u5b9a\u7fa9\u4e0d\u6b63\u78ba\uff0c\u5247\u6703\u5c0e\u81f4\u67e5\u8a62\u7121\u6cd5\u6b63\u78ba\u89e3\u6790\u3002<\/li>\n<li><strong>XML \u7d22\u5f15\u672a\u6b63\u78ba\u5275\u5efa\uff1a<\/strong>\u5982\u679c XML \u7d22\u5f15\u5728\u5275\u5efa\u904e\u7a0b\u4e2d\u51fa\u73fe\u554f\u984c\uff0c\u5247\u53ef\u80fd\u6703\u5c0e\u81f4\u67e5\u8a62\u5931\u6557\u3002<\/li>\n<\/ul>\n<h2 id=\"%e6%95%85%e9%9a%9c%e4%bf%ae%e5%be%a9%e6%ad%a5%e9%a9%9f-WNQVFTAWwU\">\u6545\u969c\u4fee\u5fa9\u6b65\u9a5f<\/h2>\n<p>\u8981\u4fee\u5fa9 <code>ORA-30968<\/code> \u932f\u8aa4\uff0c\u60a8\u53ef\u4ee5\u6309\u7167\u4ee5\u4e0b\u6b65\u9a5f\u9032\u884c\uff1a<\/p>\n<h3 id=\"1-%e6%aa%a2%e6%9f%a5-xpath-%e8%a1%a8%e9%81%94%e5%bc%8f-WNQVFTAWwU\">1. \u6aa2\u67e5 XPATH \u8868\u9054\u5f0f<\/h3>\n<p>\u9996\u5148\uff0c\u6aa2\u67e5\u60a8\u4f7f\u7528\u7684 XPATH \u8868\u9054\u5f0f\u662f\u5426\u6b63\u78ba\u3002\u60a8\u53ef\u4ee5\u4f7f\u7528 XML \u67e5\u8a62\u5de5\u5177\u4f86\u9a57\u8b49 XPATH \u7684\u6709\u6548\u6027\u3002\u4f8b\u5982\uff0c\u60a8\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u4ee3\u78bc\u4f86\u6e2c\u8a66 XPATH\uff1a<\/p>\n<pre><code>SELECT EXTRACTVALUE(xml_column, '\/root\/element') FROM your_table;<\/code><\/pre>\n<p>\u78ba\u4fdd\u60a8\u6240\u67e5\u8a62\u7684\u5143\u7d20\u5b58\u5728\u65bc XML \u7d50\u69cb\u4e2d\u3002<\/p>\n<h3 id=\"2-%e9%a9%97%e8%ad%89-namespace-%e5%ae%9a%e7%be%a9-WNQVFTAWwU\">2. \u9a57\u8b49 NAMESPACE \u5b9a\u7fa9<\/h3>\n<p>\u5982\u679c\u60a8\u7684 XML \u4f7f\u7528\u4e86 NAMESPACE\uff0c\u8acb\u78ba\u4fdd\u5728\u67e5\u8a62\u4e2d\u6b63\u78ba\u5f15\u7528\u4e86\u9019\u4e9b NAMESPACE\u3002\u60a8\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u4ee3\u78bc\u4f86\u6aa2\u67e5 NAMESPACE\uff1a<\/p>\n<pre><code>SELECT EXTRACTVALUE(xml_column, '\/root:element', 'xmlns:root=\"http:\/\/example.com\"') FROM your_table;<\/code><\/pre>\n<p>\u78ba\u4fdd NAMESPACE \u7684 URI \u8207 XML \u6587\u4ef6\u4e2d\u7684\u5b9a\u7fa9\u4e00\u81f4\u3002<\/p>\n<h3 id=\"3-%e9%87%8d%e6%96%b0%e5%89%b5%e5%bb%ba-xml-%e7%b4%a2%e5%bc%95-WNQVFTAWwU\">3. \u91cd\u65b0\u5275\u5efa XML \u7d22\u5f15<\/h3>\n<p>\u5982\u679c\u4ee5\u4e0a\u6b65\u9a5f\u7121\u6cd5\u89e3\u6c7a\u554f\u984c\uff0c\u60a8\u53ef\u80fd\u9700\u8981\u91cd\u65b0\u5275\u5efa XML \u7d22\u5f15\u3002\u4f7f\u7528\u4ee5\u4e0b SQL \u8a9e\u53e5\u4f86\u522a\u9664\u4e26\u91cd\u65b0\u5275\u5efa\u7d22\u5f15\uff1a<\/p>\n<pre><code>DROP INDEX your_xml_index;\nCREATE INDEX your_xml_index ON your_table(xml_column) INDEXTYPE IS XMLIndex;<\/code><\/pre>\n<p>\u9019\u6a23\u53ef\u4ee5\u78ba\u4fdd\u7d22\u5f15\u7684\u6b63\u78ba\u6027\uff0c\u4e26\u89e3\u6c7a\u53ef\u80fd\u5b58\u5728\u7684\u554f\u984c\u3002<\/p>\n<h2 id=\"%e7%b5%90%e8%ab%96-WNQVFTAWwU\">\u7d50\u8ad6<\/h2>\n<p>\u5728 Oracle \u6578\u64da\u5eab\u4e2d\uff0c<code>ORA-30968<\/code> \u932f\u8aa4\u901a\u5e38\u8207 XML \u7d22\u5f15\u7684\u7121\u6548 XPATH \u6216 NAMESPACE \u9078\u9805\u6709\u95dc\u3002\u901a\u904e\u6aa2\u67e5 XPATH \u8868\u9054\u5f0f\u3001\u9a57\u8b49 NAMESPACE \u5b9a\u7fa9\u4ee5\u53ca\u91cd\u65b0\u5275\u5efa XML \u7d22\u5f15\uff0c\u60a8\u53ef\u4ee5\u6709\u6548\u5730\u89e3\u6c7a\u6b64\u554f\u984c\u3002\u9019\u4e9b\u6b65\u9a5f\u4e0d\u50c5\u80fd\u5e6b\u52a9\u60a8\u4fee\u5fa9\u932f\u8aa4\uff0c\u9084\u80fd\u63d0\u9ad8\u6578\u64da\u5eab\u7684\u6027\u80fd\u548c\u7a69\u5b9a\u6027\u3002<\/p>\n<p>\u5982\u9700\u9032\u4e00\u6b65\u4e86\u89e3\u5982\u4f55\u512a\u5316\u60a8\u7684\u6578\u64da\u5eab\u74b0\u5883\uff0c\u60a8\u53ef\u4ee5\u8003\u616e\u4f7f\u7528\u6211\u5011\u7684 <a href=\"https:\/\/server.hk\">\u9999\u6e2f VPS<\/a> \u89e3\u6c7a\u65b9\u6848\uff0c\u9019\u5c07\u70ba\u60a8\u7684\u61c9\u7528\u7a0b\u5e8f\u63d0\u4f9b\u7a69\u5b9a\u548c\u9ad8\u6548\u7684\u652f\u6301\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u89e3\u6c7a ORA-30968 \u932f\u8aa4\uff0c\u91dd\u5c0d\u7121\u6548\u7684 XML \u7d22\u5f15 XPATH \u6216 NAMESPACE \u9078\u9805\u63d0\u4f9b\u6545\u969c\u4fee\u5fa9\u548c\u9060\u7a0b\u8655\u7406\u65b9\u6848\u3002<\/p>\n","protected":false},"author":0,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[101],"tags":[],"class_list":["post-91474","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/91474","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/types\/post"}],"replies":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/comments?post=91474"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/91474\/revisions"}],"predecessor-version":[{"id":91475,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/91474\/revisions\/91475"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=91474"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=91474"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=91474"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}