{"id":60833,"date":"2024-10-13T06:11:14","date_gmt":"2024-10-12T22:11:14","guid":{"rendered":"https:\/\/server.hk\/cnblog\/60833\/"},"modified":"2024-10-13T06:11:14","modified_gmt":"2024-10-12T22:11:14","slug":"db2%e6%95%b8%e6%93%9a%e5%ba%ab%e6%80%a7%e8%83%bd%e7%90%86%e8%a7%a3%e7%9a%84%e8%aa%a4%e5%8d%80%e6%9c%89%e5%93%aa%e4%ba%9b%ef%bc%9f","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/60833\/","title":{"rendered":"DB2\u6578\u64da\u5eab\u6027\u80fd\u7406\u89e3\u7684\u8aa4\u5340\u6709\u54ea\u4e9b\uff1f"},"content":{"rendered":"<h1 id=\"db2%e6%95%b8%e6%93%9a%e5%ba%ab%e6%80%a7%e8%83%bd%e7%90%86%e8%a7%a3%e7%9a%84%e8%aa%a4%e5%8d%80%e6%9c%89%e5%93%aa%e4%ba%9b%ef%bc%9f-lEbkXwiVgZ\">DB2\u6578\u64da\u5eab\u6027\u80fd\u7406\u89e3\u7684\u8aa4\u5340\u6709\u54ea\u4e9b\uff1f<\/h1>\n<p>\u5728\u7576\u4eca\u6578\u64da\u9a45\u52d5\u7684\u4e16\u754c\u4e2d\uff0c\u6578\u64da\u5eab\u7684\u6027\u80fd\u5c0d\u65bc\u4f01\u696d\u7684\u904b\u71df\u81f3\u95dc\u91cd\u8981\u3002DB2\u4f5c\u70baIBM\u7684\u4e00\u6b3e\u95dc\u4fc2\u578b\u6578\u64da\u5eab\u7ba1\u7406\u7cfb\u7d71\uff0c\u5ee3\u6cdb\u61c9\u7528\u65bc\u5404\u7a2e\u884c\u696d\u3002\u7136\u800c\uff0c\u5c0d\u65bcDB2\u6578\u64da\u5eab\u6027\u80fd\u7684\u7406\u89e3\uff0c\u5b58\u5728\u4e00\u4e9b\u5e38\u898b\u7684\u8aa4\u5340\u3002\u672c\u6587\u5c07\u63a2\u8a0e\u9019\u4e9b\u8aa4\u5340\uff0c\u5e6b\u52a9\u8b80\u8005\u66f4\u597d\u5730\u7406\u89e3DB2\u7684\u6027\u80fd\u512a\u5316\u3002<\/p>\n<h2 id=\"%e8%aa%a4%e5%8d%80%e4%b8%80%ef%bc%9a%e6%80%a7%e8%83%bd%e5%8f%aa%e8%88%87%e7%a1%ac%e9%ab%94%e6%9c%89%e9%97%9c-lEbkXwiVgZ\">\u8aa4\u5340\u4e00\uff1a\u6027\u80fd\u53ea\u8207\u786c\u9ad4\u6709\u95dc<\/h2>\n<p>\u8a31\u591a\u4eba\u8a8d\u70ba\uff0c\u6578\u64da\u5eab\u7684\u6027\u80fd\u4e3b\u8981\u53d6\u6c7a\u65bc\u786c\u9ad4\u914d\u7f6e\uff0c\u5982CPU\u3001\u5167\u5b58\u548c\u5b58\u5132\u8a2d\u5099\u3002\u96d6\u7136\u786c\u9ad4\u78ba\u5be6\u5c0d\u6027\u80fd\u6709\u5f71\u97ff\uff0c\u4f46\u6578\u64da\u5eab\u7684\u8a2d\u8a08\u3001\u67e5\u8a62\u512a\u5316\u548c\u7d22\u5f15\u7b56\u7565\u540c\u6a23\u91cd\u8981\u3002\u4f8b\u5982\uff0c\u82e5\u67e5\u8a62\u672a\u7d93\u512a\u5316\uff0c\u5373\u4f7f\u5728\u9ad8\u6027\u80fd\u7684\u786c\u9ad4\u4e0a\uff0c\u57f7\u884c\u901f\u5ea6\u4e5f\u53ef\u80fd\u7de9\u6162\u3002<\/p>\n<h3 id=\"%e7%a4%ba%e4%be%8b%ef%bc%9a-lEbkXwiVgZ\">\u793a\u4f8b\uff1a<\/h3>\n<pre><code>SELECT * FROM orders WHERE order_date &gt; '2023-01-01';<\/code><\/pre>\n<p>\u4e0a\u8ff0\u67e5\u8a62\u5728\u6c92\u6709\u9069\u7576\u7d22\u5f15\u7684\u60c5\u6cc1\u4e0b\uff0c\u53ef\u80fd\u6703\u5c0e\u81f4\u5168\u8868\u6383\u63cf\uff0c\u5f9e\u800c\u5f71\u97ff\u6027\u80fd\u3002<\/p>\n<h2 id=\"%e8%aa%a4%e5%8d%80%e4%ba%8c%ef%bc%9a%e6%89%80%e6%9c%89%e6%9f%a5%e8%a9%a2%e9%83%bd%e9%9c%80%e8%a6%81%e7%b4%a2%e5%bc%95-lEbkXwiVgZ\">\u8aa4\u5340\u4e8c\uff1a\u6240\u6709\u67e5\u8a62\u90fd\u9700\u8981\u7d22\u5f15<\/h2>\n<p>\u96d6\u7136\u7d22\u5f15\u53ef\u4ee5\u52a0\u901f\u67e5\u8a62\uff0c\u4f46\u4e26\u975e\u6240\u6709\u67e5\u8a62\u90fd\u9700\u8981\u7d22\u5f15\u3002\u904e\u591a\u7684\u7d22\u5f15\u6703\u589e\u52a0\u6578\u64da\u5beb\u5165\u7684\u6210\u672c\uff0c\u4e26\u53ef\u80fd\u5c0e\u81f4\u6027\u80fd\u4e0b\u964d\u3002\u9078\u64c7\u6027\u5730\u70ba\u9ad8\u983b\u67e5\u8a62\u5275\u5efa\u7d22\u5f15\uff0c\u4e26\u5b9a\u671f\u6aa2\u67e5\u548c\u91cd\u5efa\u7d22\u5f15\uff0c\u662f\u66f4\u70ba\u6709\u6548\u7684\u7b56\u7565\u3002<\/p>\n<h3 id=\"%e7%a4%ba%e4%be%8b%ef%bc%9a-lEbkXwiVgZ\">\u793a\u4f8b\uff1a<\/h3>\n<p>\u5c0d\u65bc\u4e00\u500b\u4f4e\u983b\u7387\u7684\u67e5\u8a62\uff0c\u5275\u5efa\u7d22\u5f15\u53ef\u80fd\u6703\u5c0e\u81f4\u4e0d\u5fc5\u8981\u7684\u958b\u92b7\uff0c\u53cd\u800c\u5f71\u97ff\u6574\u9ad4\u6027\u80fd\u3002<\/p>\n<h2 id=\"%e8%aa%a4%e5%8d%80%e4%b8%89%ef%bc%9adb2%e7%9a%84%e6%80%a7%e8%83%bd%e5%84%aa%e5%8c%96%e5%8f%aa%e9%9c%80%e4%b8%80%e6%ac%a1%e6%80%a7%e5%ae%8c%e6%88%90-lEbkXwiVgZ\">\u8aa4\u5340\u4e09\uff1aDB2\u7684\u6027\u80fd\u512a\u5316\u53ea\u9700\u4e00\u6b21\u6027\u5b8c\u6210<\/h2>\n<p>\u8a31\u591a\u7528\u6236\u8a8d\u70ba\uff0c\u6578\u64da\u5eab\u6027\u80fd\u512a\u5316\u662f\u4e00\u500b\u4e00\u6b21\u6027\u7684\u4efb\u52d9\u3002\u4e8b\u5be6\u4e0a\uff0c\u96a8\u8457\u6578\u64da\u91cf\u7684\u589e\u9577\u548c\u696d\u52d9\u9700\u6c42\u7684\u8b8a\u5316\uff0c\u6027\u80fd\u512a\u5316\u61c9\u8a72\u662f\u4e00\u500b\u6301\u7e8c\u7684\u904e\u7a0b\u3002\u5b9a\u671f\u76e3\u63a7\u6027\u80fd\u6307\u6a19\uff0c\u4e26\u6839\u64da\u5be6\u969b\u60c5\u6cc1\u9032\u884c\u8abf\u6574\uff0c\u662f\u78ba\u4fdd\u6578\u64da\u5eab\u9ad8\u6548\u904b\u884c\u7684\u95dc\u9375\u3002<\/p>\n<h3 id=\"%e7%a4%ba%e4%be%8b%ef%bc%9a-lEbkXwiVgZ\">\u793a\u4f8b\uff1a<\/h3>\n<p>\u4f7f\u7528DB2\u7684\u6027\u80fd\u76e3\u63a7\u5de5\u5177\uff0c\u5982DB2 Performance Expert\uff0c\u53ef\u4ee5\u5e6b\u52a9\u7528\u6236\u53ca\u6642\u767c\u73fe\u6027\u80fd\u74f6\u9838\u4e26\u9032\u884c\u8abf\u6574\u3002<\/p>\n<h2 id=\"%e8%aa%a4%e5%8d%80%e5%9b%9b%ef%bc%9a%e5%8f%aa%e9%97%9c%e6%b3%a8%e6%9f%a5%e8%a9%a2%e6%80%a7%e8%83%bd-lEbkXwiVgZ\">\u8aa4\u5340\u56db\uff1a\u53ea\u95dc\u6ce8\u67e5\u8a62\u6027\u80fd<\/h2>\n<p>\u96d6\u7136\u67e5\u8a62\u6027\u80fd\u662f\u6578\u64da\u5eab\u6027\u80fd\u7684\u91cd\u8981\u7d44\u6210\u90e8\u5206\uff0c\u4f46\u9084\u6709\u5176\u4ed6\u56e0\u7d20\u9700\u8981\u8003\u616e\uff0c\u5982\u6578\u64da\u5eab\u7684\u914d\u7f6e\u3001\u4e26\u767c\u9023\u63a5\u6578\u548c\u4e8b\u52d9\u7ba1\u7406\u7b49\u3002\u5ffd\u8996\u9019\u4e9b\u56e0\u7d20\u53ef\u80fd\u6703\u5c0e\u81f4\u6574\u9ad4\u6027\u80fd\u4e0b\u964d\u3002<\/p>\n<h3 id=\"%e7%a4%ba%e4%be%8b%ef%bc%9a-lEbkXwiVgZ\">\u793a\u4f8b\uff1a<\/h3>\n<p>\u5728\u9ad8\u4e26\u767c\u74b0\u5883\u4e0b\uff0c\u9069\u7576\u914d\u7f6e\u9023\u63a5\u6c60\u548c\u4e8b\u52d9\u9694\u96e2\u7d1a\u5225\uff0c\u53ef\u4ee5\u986f\u8457\u63d0\u9ad8\u6578\u64da\u5eab\u7684\u97ff\u61c9\u901f\u5ea6\u3002<\/p>\n<h2 id=\"%e8%aa%a4%e5%8d%80%e4%ba%94%ef%bc%9adb2%e7%9a%84%e6%80%a7%e8%83%bd%e5%84%aa%e5%8c%96%e5%8f%aa%e9%9c%80%e4%be%9d%e8%b3%b4%e5%b7%a5%e5%85%b7-lEbkXwiVgZ\">\u8aa4\u5340\u4e94\uff1aDB2\u7684\u6027\u80fd\u512a\u5316\u53ea\u9700\u4f9d\u8cf4\u5de5\u5177<\/h2>\n<p>\u96d6\u7136\u5e02\u5834\u4e0a\u6709\u8a31\u591a\u6027\u80fd\u512a\u5316\u5de5\u5177\uff0c\u4f46\u50c5\u4f9d\u8cf4\u9019\u4e9b\u5de5\u5177\u4e26\u4e0d\u8db3\u5920\u3002\u7528\u6236\u9700\u8981\u5177\u5099\u4e00\u5b9a\u7684\u6578\u64da\u5eab\u7ba1\u7406\u77e5\u8b58\uff0c\u624d\u80fd\u6709\u6548\u5730\u89e3\u8b80\u5de5\u5177\u63d0\u4f9b\u7684\u6578\u64da\uff0c\u4e26\u505a\u51fa\u76f8\u61c9\u7684\u8abf\u6574\u3002<\/p>\n<h3 id=\"%e7%a4%ba%e4%be%8b%ef%bc%9a-lEbkXwiVgZ\">\u793a\u4f8b\uff1a<\/h3>\n<p>\u4f7f\u7528DB2\u7684SQL\u57f7\u884c\u8a08\u5283\u5206\u6790\u5de5\u5177\uff0c\u53ef\u4ee5\u5e6b\u52a9\u7528\u6236\u7406\u89e3\u67e5\u8a62\u7684\u57f7\u884c\u904e\u7a0b\uff0c\u5f9e\u800c\u9032\u884c\u91dd\u5c0d\u6027\u7684\u512a\u5316\u3002<\/p>\n<h2 id=\"%e7%b8%bd%e7%b5%90-lEbkXwiVgZ\">\u7e3d\u7d50<\/h2>\n<p>\u7406\u89e3DB2\u6578\u64da\u5eab\u6027\u80fd\u7684\u8aa4\u5340\u5c0d\u65bc\u6709\u6548\u7684\u6027\u80fd\u512a\u5316\u81f3\u95dc\u91cd\u8981\u3002\u901a\u904e\u6b63\u78ba\u7684\u8a8d\u8b58\u548c\u6301\u7e8c\u7684\u76e3\u63a7\uff0c\u4f01\u696d\u53ef\u4ee5\u78ba\u4fdd\u5176\u6578\u64da\u5eab\u7cfb\u7d71\u9ad8\u6548\u904b\u884c\uff0c\u6eff\u8db3\u696d\u52d9\u9700\u6c42\u3002\u82e5\u60a8\u5c0d\u65bc\u6578\u64da\u5eab\u6027\u80fd\u512a\u5316\u6709\u9032\u4e00\u6b65\u7684\u9700\u6c42\uff0c\u8003\u616e\u4f7f\u7528<a href=\"https:\/\/server.hk\">\u9999\u6e2fVPS<\/a>\u6216<a href=\"https:\/\/server.hk\">\u9999\u6e2f\u4f3a\u670d\u5668<\/a>\u4f86\u63d0\u5347\u60a8\u7684\u6578\u64da\u8655\u7406\u80fd\u529b\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u63a2\u7d22DB2\u6578\u64da\u5eab\u6027\u80fd\u7406\u89e3\u7684\u5e38\u898b\u8aa4\u5340\uff0c\u5e6b\u52a9\u60a8\u512a\u5316\u6578\u64da\u5eab\u6548\u80fd\uff0c\u63d0\u5347\u7cfb\u7d71\u904b\u884c\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-60833","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/60833","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=60833"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/60833\/revisions"}],"predecessor-version":[{"id":60834,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/60833\/revisions\/60834"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=60833"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=60833"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=60833"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}