{"id":95834,"date":"2024-10-20T04:23:14","date_gmt":"2024-10-19T20:23:14","guid":{"rendered":"https:\/\/server.hk\/cnblog\/95834\/"},"modified":"2024-10-20T04:23:15","modified_gmt":"2024-10-19T20:23:15","slug":"oracle%e6%95%b8%e6%93%9a%e5%ba%ab%e6%8f%90%e9%ab%98%e5%91%bd%e4%b8%ad%e7%8e%87%e5%8f%8a%e7%9b%b8%e9%97%9c%e5%84%aa%e5%8c%96","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/95834\/","title":{"rendered":"Oracle\u6578\u64da\u5eab\u63d0\u9ad8\u547d\u4e2d\u7387\u53ca\u76f8\u95dc\u512a\u5316"},"content":{"rendered":"<h1 id=\"oracle%e6%95%b8%e6%93%9a%e5%ba%ab%e6%8f%90%e9%ab%98%e5%91%bd%e4%b8%ad%e7%8e%87%e5%8f%8a%e7%9b%b8%e9%97%9c%e5%84%aa%e5%8c%96-WyVzFpvNTR\">Oracle\u6578\u64da\u5eab\u63d0\u9ad8\u547d\u4e2d\u7387\u53ca\u76f8\u95dc\u512a\u5316<\/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\u6210\u529f\u81f3\u95dc\u91cd\u8981\u3002Oracle\u6578\u64da\u5eab\u4f5c\u70ba\u4e00\u500b\u5f37\u5927\u7684\u95dc\u4fc2\u578b\u6578\u64da\u5eab\u7ba1\u7406\u7cfb\u7d71\uff0c\u63d0\u4f9b\u4e86\u591a\u7a2e\u529f\u80fd\u4f86\u63d0\u9ad8\u67e5\u8a62\u7684\u547d\u4e2d\u7387\u548c\u6574\u9ad4\u6027\u80fd\u3002\u672c\u6587\u5c07\u63a2\u8a0e\u5982\u4f55\u901a\u904e\u5404\u7a2e\u512a\u5316\u6280\u8853\u4f86\u63d0\u9ad8Oracle\u6578\u64da\u5eab\u7684\u547d\u4e2d\u7387\u3002<\/p>\n<h2 id=\"%e4%bb%80%e9%ba%bc%e6%98%af%e5%91%bd%e4%b8%ad%e7%8e%87%ef%bc%9f-WyVzFpvNTR\">\u4ec0\u9ebc\u662f\u547d\u4e2d\u7387\uff1f<\/h2>\n<p>\u547d\u4e2d\u7387\u901a\u5e38\u6307\u7684\u662f\u5728\u67e5\u8a62\u904e\u7a0b\u4e2d\uff0c\u6578\u64da\u5eab\u80fd\u5920\u5f9e\u7de9\u5b58\u4e2d\u5feb\u901f\u7372\u53d6\u6240\u9700\u6578\u64da\u7684\u6bd4\u4f8b\u3002\u9ad8\u547d\u4e2d\u7387\u610f\u5473\u8457\u6578\u64da\u5eab\u80fd\u5920\u66f4\u5feb\u5730\u97ff\u61c9\u67e5\u8a62\u8acb\u6c42\uff0c\u5f9e\u800c\u63d0\u9ad8\u6574\u9ad4\u6027\u80fd\u3002\u547d\u4e2d\u7387\u7684\u63d0\u9ad8\u4e0d\u50c5\u80fd\u6e1b\u5c11I\/O\u64cd\u4f5c\uff0c\u9084\u80fd\u964d\u4f4e\u7cfb\u7d71\u8cc7\u6e90\u7684\u6d88\u8017\u3002<\/p>\n<h2 id=\"%e6%8f%90%e9%ab%98oracle%e6%95%b8%e6%93%9a%e5%ba%ab%e5%91%bd%e4%b8%ad%e7%8e%87%e7%9a%84%e7%ad%96%e7%95%a5-WyVzFpvNTR\">\u63d0\u9ad8Oracle\u6578\u64da\u5eab\u547d\u4e2d\u7387\u7684\u7b56\u7565<\/h2>\n<h3 id=\"1-%e4%bd%bf%e7%94%a8%e9%81%a9%e7%95%b6%e7%9a%84%e7%b4%a2%e5%bc%95-WyVzFpvNTR\">1. \u4f7f\u7528\u9069\u7576\u7684\u7d22\u5f15<\/h3>\n<p>\u7d22\u5f15\u662f\u63d0\u9ad8\u67e5\u8a62\u6027\u80fd\u7684\u95dc\u9375\u3002\u901a\u904e\u70ba\u8868\u4e2d\u7684\u5217\u5275\u5efa\u7d22\u5f15\uff0c\u53ef\u4ee5\u986f\u8457\u63d0\u9ad8\u67e5\u8a62\u7684\u901f\u5ea6\u3002\u4ee5\u4e0b\u662f\u5275\u5efa\u7d22\u5f15\u7684\u57fa\u672c\u8a9e\u6cd5\uff1a<\/p>\n<pre><code>CREATE INDEX index_name ON table_name (column_name);<\/code><\/pre>\n<p>\u7136\u800c\uff0c\u904e\u591a\u7684\u7d22\u5f15\u6703\u5f71\u97ff\u6578\u64da\u7684\u63d2\u5165\u548c\u66f4\u65b0\u6027\u80fd\uff0c\u56e0\u6b64\u9700\u8981\u6839\u64da\u5be6\u969b\u9700\u6c42\u9032\u884c\u5e73\u8861\u3002<\/p>\n<h3 id=\"2-%e8%aa%bf%e6%95%b4%e7%b7%a9%e5%ad%98%e5%8f%83%e6%95%b8-WyVzFpvNTR\">2. \u8abf\u6574\u7de9\u5b58\u53c3\u6578<\/h3>\n<p>Oracle\u6578\u64da\u5eab\u4f7f\u7528\u7de9\u5b58\u4f86\u5b58\u5132\u7d93\u5e38\u8a2a\u554f\u7684\u6578\u64da\u3002\u901a\u904e\u8abf\u6574\u7de9\u5b58\u53c3\u6578\uff0c\u53ef\u4ee5\u63d0\u9ad8\u547d\u4e2d\u7387\u3002\u4ee5\u4e0b\u662f\u4e00\u4e9b\u5e38\u898b\u7684\u7de9\u5b58\u53c3\u6578\uff1a<\/p>\n<ul>\n<li><strong>DB_CACHE_SIZE\uff1a<\/strong>\u63a7\u5236\u6578\u64da\u7de9\u5b58\u7684\u5927\u5c0f\u3002<\/li>\n<li><strong>SHARED_POOL_SIZE\uff1a<\/strong>\u63a7\u5236\u5171\u4eab\u6c60\u7684\u5927\u5c0f\uff0c\u5f71\u97ffSQL\u8a9e\u53e5\u7684\u89e3\u6790\u548c\u57f7\u884c\u3002<\/li>\n<\/ul>\n<p>\u9069\u7576\u7684\u7de9\u5b58\u914d\u7f6e\u53ef\u4ee5\u986f\u8457\u63d0\u9ad8\u67e5\u8a62\u6027\u80fd\u3002<\/p>\n<h3 id=\"3-%e4%bd%bf%e7%94%a8%e6%9f%a5%e8%a9%a2%e5%84%aa%e5%8c%96%e5%99%a8-WyVzFpvNTR\">3. \u4f7f\u7528\u67e5\u8a62\u512a\u5316\u5668<\/h3>\n<p>Oracle\u7684\u67e5\u8a62\u512a\u5316\u5668\u80fd\u5920\u81ea\u52d5\u9078\u64c7\u6700\u4f73\u7684\u57f7\u884c\u8a08\u5283\u3002\u901a\u904e\u5206\u6790\u67e5\u8a62\u7684\u7d50\u69cb\u548c\u6578\u64da\u5206\u4f48\uff0c\u512a\u5316\u5668\u53ef\u4ee5\u9078\u64c7\u6700\u6709\u6548\u7684\u57f7\u884c\u8def\u5f91\u3002\u958b\u767c\u8005\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u8a9e\u6cd5\u4f86\u63d0\u793a\u512a\u5316\u5668\uff1a<\/p>\n<pre><code>SELECT \/*+ INDEX(table_name index_name) *\/ * FROM table_name WHERE condition;<\/code><\/pre>\n<p>\u9019\u6a23\u53ef\u4ee5\u5f37\u5236\u512a\u5316\u5668\u4f7f\u7528\u7279\u5b9a\u7684\u7d22\u5f15\uff0c\u5f9e\u800c\u63d0\u9ad8\u67e5\u8a62\u6027\u80fd\u3002<\/p>\n<h3 id=\"4-%e5%ae%9a%e6%9c%9f%e9%80%b2%e8%a1%8c%e6%95%b8%e6%93%9a%e5%ba%ab%e7%b6%ad%e8%ad%b7-WyVzFpvNTR\">4. \u5b9a\u671f\u9032\u884c\u6578\u64da\u5eab\u7dad\u8b77<\/h3>\n<p>\u5b9a\u671f\u7684\u6578\u64da\u5eab\u7dad\u8b77\u53ef\u4ee5\u5e6b\u52a9\u4fdd\u6301\u6578\u64da\u5eab\u7684\u5065\u5eb7\u72c0\u614b\u3002\u9019\u5305\u62ec\uff1a<\/p>\n<ul>\n<li>\u91cd\u5efa\u788e\u7247\u5316\u7684\u7d22\u5f15\u3002<\/li>\n<li>\u66f4\u65b0\u7d71\u8a08\u4fe1\u606f\uff0c\u4ee5\u4fbf\u512a\u5316\u5668\u80fd\u5920\u505a\u51fa\u66f4\u597d\u7684\u6c7a\u7b56\u3002<\/li>\n<li>\u6e05\u7406\u4e0d\u518d\u4f7f\u7528\u7684\u6578\u64da\u3002<\/li>\n<\/ul>\n<p>\u9019\u4e9b\u7dad\u8b77\u64cd\u4f5c\u53ef\u4ee5\u63d0\u9ad8\u6578\u64da\u5eab\u7684\u6574\u9ad4\u6027\u80fd\u548c\u547d\u4e2d\u7387\u3002<\/p>\n<h2 id=\"%e7%b5%90%e8%ab%96-WyVzFpvNTR\">\u7d50\u8ad6<\/h2>\n<p>\u63d0\u9ad8Oracle\u6578\u64da\u5eab\u7684\u547d\u4e2d\u7387\u662f\u4e00\u500b\u591a\u65b9\u9762\u7684\u904e\u7a0b\uff0c\u6d89\u53ca\u5230\u7d22\u5f15\u7684\u4f7f\u7528\u3001\u7de9\u5b58\u7684\u8abf\u6574\u3001\u67e5\u8a62\u7684\u512a\u5316\u4ee5\u53ca\u5b9a\u671f\u7684\u7dad\u8b77\u3002\u901a\u904e\u9019\u4e9b\u7b56\u7565\uff0c\u4f01\u696d\u53ef\u4ee5\u986f\u8457\u63d0\u9ad8\u6578\u64da\u5eab\u7684\u6027\u80fd\uff0c\u5f9e\u800c\u652f\u6301\u696d\u52d9\u7684\u589e\u9577\u548c\u767c\u5c55\u3002<\/p>\n<p>\u5982\u679c\u60a8\u6b63\u5728\u5c0b\u627e\u9ad8\u6548\u7684\u89e3\u6c7a\u65b9\u6848\u4f86\u652f\u6301\u60a8\u7684\u6578\u64da\u5eab\u9700\u6c42\uff0c\u8003\u616e\u4f7f\u7528<a href=\"https:\/\/server.hk\">\u9999\u6e2fVPS<\/a>\u670d\u52d9\uff0c\u9019\u5c07\u70ba\u60a8\u7684Oracle\u6578\u64da\u5eab\u63d0\u4f9b\u7a69\u5b9a\u548c\u9ad8\u6548\u7684\u904b\u884c\u74b0\u5883\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u63a2\u7d22Oracle\u6578\u64da\u5eab\u63d0\u9ad8\u547d\u4e2d\u7387\u7684\u7b56\u7565\u8207\u512a\u5316\u6280\u5de7\uff0c\u63d0\u5347\u6027\u80fd\u8207\u6548\u7387\uff0c\u5be6\u73fe\u66f4\u5feb\u7684\u6578\u64da\u8655\u7406\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-95834","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/95834","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=95834"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/95834\/revisions"}],"predecessor-version":[{"id":95835,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/95834\/revisions\/95835"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=95834"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=95834"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=95834"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}