{"id":60263,"date":"2024-10-13T01:24:20","date_gmt":"2024-10-12T17:24:20","guid":{"rendered":"https:\/\/server.hk\/cnblog\/60263\/"},"modified":"2024-10-13T01:24:21","modified_gmt":"2024-10-12T17:24:21","slug":"db2-9-xml%e6%9c%80%e4%bd%b3%e5%af%a6%e8%b8%90%e8%88%87%e7%9b%b8%e9%97%9c%e5%85%a7%e5%ae%b9%e7%9a%84%e8%a9%b3%e7%b4%b0%e6%8f%8f%e8%bf%b0","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/60263\/","title":{"rendered":"DB2 9 XML\u6700\u4f73\u5be6\u8e10\u8207\u76f8\u95dc\u5167\u5bb9\u7684\u8a73\u7d30\u63cf\u8ff0"},"content":{"rendered":"<h1 id=\"db2-9-xml%e6%9c%80%e4%bd%b3%e5%af%a6%e8%b8%90%e8%88%87%e7%9b%b8%e9%97%9c%e5%85%a7%e5%ae%b9%e7%9a%84%e8%a9%b3%e7%b4%b0%e6%8f%8f%e8%bf%b0-wVccxhsufT\">DB2 9 XML\u6700\u4f73\u5be6\u8e10\u8207\u76f8\u95dc\u5167\u5bb9\u7684\u8a73\u7d30\u63cf\u8ff0<\/h1>\n<p>\u5728\u7576\u4eca\u6578\u64da\u9a45\u52d5\u7684\u4e16\u754c\u4e2d\uff0cXML\uff08\u53ef\u64f4\u5c55\u6a19\u8a18\u8a9e\u8a00\uff09\u5df2\u6210\u70ba\u6578\u64da\u4ea4\u63db\u548c\u5b58\u5132\u7684\u91cd\u8981\u683c\u5f0f\u3002IBM\u7684DB2 9\u6578\u64da\u5eab\u7cfb\u7d71\u63d0\u4f9b\u4e86\u5f37\u5927\u7684XML\u652f\u6301\uff0c\u4f7f\u5f97\u958b\u767c\u8005\u80fd\u5920\u66f4\u6709\u6548\u5730\u8655\u7406\u548c\u67e5\u8a62XML\u6578\u64da\u3002\u672c\u6587\u5c07\u63a2\u8a0eDB2 9\u4e2dXML\u7684\u6700\u4f73\u5be6\u8e10\u53ca\u5176\u76f8\u95dc\u5167\u5bb9\uff0c\u5e6b\u52a9\u958b\u767c\u8005\u66f4\u597d\u5730\u5229\u7528\u9019\u4e00\u6280\u8853\u3002<\/p>\n<h2 id=\"db2-9%e4%b8%ad%e7%9a%84xml%e6%94%af%e6%8c%81-wVccxhsufT\">DB2 9\u4e2d\u7684XML\u652f\u6301<\/h2>\n<p>DB2 9\u5f15\u5165\u4e86\u5c0dXML\u6578\u64da\u985e\u578b\u7684\u539f\u751f\u652f\u6301\uff0c\u9019\u4f7f\u5f97\u7528\u6236\u80fd\u5920\u76f4\u63a5\u5728\u6578\u64da\u5eab\u4e2d\u5b58\u5132\u548c\u67e5\u8a62XML\u6578\u64da\u3002\u9019\u4e00\u7279\u6027\u4e0d\u50c5\u63d0\u9ad8\u4e86\u6578\u64da\u7684\u9748\u6d3b\u6027\uff0c\u9084\u7c21\u5316\u4e86\u6578\u64da\u7684\u7ba1\u7406\u904e\u7a0b\u3002DB2 9\u5141\u8a31\u7528\u6236\u4f7f\u7528SQL\/XML\u8a9e\u6cd5\u4f86\u67e5\u8a62\u548c\u64cd\u4f5cXML\u6578\u64da\uff0c\u9019\u4f7f\u5f97\u958b\u767c\u8005\u80fd\u5920\u5229\u7528\u719f\u6089\u7684SQL\u8a9e\u8a00\u4f86\u8655\u7406XML\u3002<\/p>\n<h2 id=\"%e6%9c%80%e4%bd%b3%e5%af%a6%e8%b8%90-wVccxhsufT\">\u6700\u4f73\u5be6\u8e10<\/h2>\n<h3 id=\"1-%e4%bd%bf%e7%94%a8xml%e6%95%b8%e6%93%9a%e9%a1%9e%e5%9e%8b-wVccxhsufT\">1. \u4f7f\u7528XML\u6578\u64da\u985e\u578b<\/h3>\n<p>\u5728DB2 9\u4e2d\uff0c\u5efa\u8b70\u4f7f\u7528XML\u6578\u64da\u985e\u578b\u4f86\u5b58\u5132XML\u6587\u6a94\u3002\u9019\u6a23\u53ef\u4ee5\u78ba\u4fdd\u6578\u64da\u7684\u5b8c\u6574\u6027\u548c\u4e00\u81f4\u6027\u3002\u4f7f\u7528XML\u6578\u64da\u985e\u578b\u7684\u597d\u8655\u5305\u62ec\uff1a<\/p>\n<ul>\n<li>\u81ea\u52d5\u9a57\u8b49\uff1aDB2\u6703\u81ea\u52d5\u9a57\u8b49XML\u6578\u64da\u7684\u7d50\u69cb\uff0c\u78ba\u4fdd\u5176\u7b26\u5408\u5b9a\u7fa9\u7684\u6a21\u5f0f\u3002<\/li>\n<li>\u9ad8\u6548\u67e5\u8a62\uff1a\u4f7f\u7528XML\u6578\u64da\u985e\u578b\u53ef\u4ee5\u63d0\u9ad8\u67e5\u8a62\u6027\u80fd\uff0c\u56e0\u70baDB2\u80fd\u5920\u512a\u5316XML\u67e5\u8a62\u3002<\/li>\n<\/ul>\n<h3 id=\"2-%e5%88%a9%e7%94%a8xml%e7%b4%a2%e5%bc%95-wVccxhsufT\">2. \u5229\u7528XML\u7d22\u5f15<\/h3>\n<p>\u70ba\u4e86\u63d0\u9ad8\u67e5\u8a62\u6027\u80fd\uff0cDB2 9\u652f\u6301\u70baXML\u6578\u64da\u5275\u5efa\u7d22\u5f15\u3002\u9019\u4e9b\u7d22\u5f15\u53ef\u4ee5\u986f\u8457\u52a0\u5feb\u67e5\u8a62\u901f\u5ea6\uff0c\u7279\u5225\u662f\u5728\u8655\u7406\u5927\u578bXML\u6587\u6a94\u6642\u3002\u958b\u767c\u8005\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0bSQL\u8a9e\u53e5\u5275\u5efaXML\u7d22\u5f15\uff1a<\/p>\n<pre><code>CREATE INDEX xml_index ON my_table (xml_column) \n    INDEXTYPE IS XMLINDEX;<\/code><\/pre>\n<h3 id=\"3-%e4%bd%bf%e7%94%a8xquery%e9%80%b2%e8%a1%8c%e6%9f%a5%e8%a9%a2-wVccxhsufT\">3. \u4f7f\u7528XQuery\u9032\u884c\u67e5\u8a62<\/h3>\n<p>XQuery\u662f\u4e00\u7a2e\u7528\u65bc\u67e5\u8a62XML\u6578\u64da\u7684\u5f37\u5927\u8a9e\u8a00\u3002\u5728DB2 9\u4e2d\uff0c\u958b\u767c\u8005\u53ef\u4ee5\u4f7f\u7528XQuery\u4f86\u57f7\u884c\u8907\u96dc\u7684\u67e5\u8a62\u64cd\u4f5c\u3002\u4ee5\u4e0b\u662f\u4e00\u500b\u7c21\u55ae\u7684XQuery\u793a\u4f8b\uff1a<\/p>\n<pre><code>SELECT XMLQUERY('for $x in $doc\/\/item return $x' PASSING xml_column AS \"doc\") \n    FROM my_table;<\/code><\/pre>\n<h3 id=\"4-%e6%95%b4%e5%90%88xml%e5%92%8c%e9%97%9c%e4%bf%82%e6%95%b8%e6%93%9a-wVccxhsufT\">4. \u6574\u5408XML\u548c\u95dc\u4fc2\u6578\u64da<\/h3>\n<p>DB2 9\u5141\u8a31\u7528\u6236\u5c07XML\u6578\u64da\u8207\u50b3\u7d71\u7684\u95dc\u4fc2\u6578\u64da\u7d50\u5408\u4f7f\u7528\u3002\u9019\u610f\u5473\u8457\u958b\u767c\u8005\u53ef\u4ee5\u5728\u540c\u4e00\u500b\u67e5\u8a62\u4e2d\u540c\u6642\u8655\u7406XML\u548c\u95dc\u4fc2\u6578\u64da\uff0c\u5f9e\u800c\u63d0\u9ad8\u6578\u64da\u8655\u7406\u7684\u9748\u6d3b\u6027\u3002\u4f8b\u5982\uff1a<\/p>\n<pre><code>SELECT * FROM my_table \n    WHERE xml_column.value('(\/item\/name)[1]', 'varchar(100)') = 'example';<\/code><\/pre>\n<h2 id=\"xml%e7%9a%84%e5%ae%89%e5%85%a8%e6%80%a7%e8%80%83%e9%87%8f-wVccxhsufT\">XML\u7684\u5b89\u5168\u6027\u8003\u91cf<\/h2>\n<p>\u5728\u8655\u7406XML\u6578\u64da\u6642\uff0c\u5b89\u5168\u6027\u662f\u4e00\u500b\u91cd\u8981\u7684\u8003\u91cf\u56e0\u7d20\u3002DB2 9\u63d0\u4f9b\u4e86\u591a\u7a2e\u5b89\u5168\u6a5f\u5236\u4f86\u4fdd\u8b77XML\u6578\u64da\uff0c\u5305\u62ec\u7528\u6236\u6b0a\u9650\u7ba1\u7406\u548c\u6578\u64da\u52a0\u5bc6\u3002\u958b\u767c\u8005\u61c9\u78ba\u4fdd\u53ea\u6709\u6388\u6b0a\u7528\u6236\u80fd\u5920\u8a2a\u554f\u548c\u4fee\u6539XML\u6578\u64da\u3002<\/p>\n<h2 id=\"%e7%b5%90%e8%ab%96-wVccxhsufT\">\u7d50\u8ad6<\/h2>\n<p>DB2 9\u70ba\u958b\u767c\u8005\u63d0\u4f9b\u4e86\u5f37\u5927\u7684XML\u652f\u6301\uff0c\u901a\u904e\u9075\u5faa\u6700\u4f73\u5be6\u8e10\uff0c\u958b\u767c\u8005\u53ef\u4ee5\u66f4\u6709\u6548\u5730\u7ba1\u7406\u548c\u67e5\u8a62XML\u6578\u64da\u3002\u7121\u8ad6\u662f\u4f7f\u7528XML\u6578\u64da\u985e\u578b\u3001\u5275\u5efa\u7d22\u5f15\uff0c\u9084\u662f\u5229\u7528XQuery\u9032\u884c\u67e5\u8a62\uff0c\u9019\u4e9b\u6280\u8853\u90fd\u80fd\u986f\u8457\u63d0\u9ad8\u6578\u64da\u8655\u7406\u7684\u6548\u7387\u548c\u9748\u6d3b\u6027\u3002<\/p>\n<p>\u5982\u9700\u9032\u4e00\u6b65\u4e86\u89e3\u5982\u4f55\u5728\u60a8\u7684\u9805\u76ee\u4e2d\u5be6\u65bd\u9019\u4e9b\u6700\u4f73\u5be6\u8e10\uff0c\u60a8\u53ef\u4ee5\u8003\u616e\u4f7f\u7528<a href=\"https:\/\/server.hk\">\u9999\u6e2fVPS<\/a>\u4f86\u642d\u5efa\u60a8\u7684\u958b\u767c\u74b0\u5883\uff0c\u9019\u5c07\u70ba\u60a8\u63d0\u4f9b\u7a69\u5b9a\u548c\u9ad8\u6548\u7684\u652f\u6301\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u63a2\u7d22DB2 9\u4e2dXML\u7684\u6700\u4f73\u5be6\u8e10\uff0c\u4e86\u89e3\u5982\u4f55\u6709\u6548\u7ba1\u7406\u548c\u67e5\u8a62XML\u6578\u64da\uff0c\u63d0\u5347\u6578\u64da\u5eab\u6027\u80fd\u8207\u6548\u7387\u3002<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[101],"tags":[],"class_list":["post-60263","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/60263","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"}],"author":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/comments?post=60263"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/60263\/revisions"}],"predecessor-version":[{"id":60264,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/60263\/revisions\/60264"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=60263"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=60263"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=60263"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}