{"id":154589,"date":"2024-11-02T17:04:19","date_gmt":"2024-11-02T09:04:19","guid":{"rendered":"https:\/\/server.hk\/cnblog\/154589\/"},"modified":"2024-11-02T17:04:19","modified_gmt":"2024-11-02T09:04:19","slug":"%e5%b0%8d-oracle-%e6%95%b8%e6%93%9a%e5%ba%ab%e4%b8%ad%e7%9a%84%e5%a4%a7%e8%a1%a8%e7%ae%a1%e7%90%86%e7%9a%84%e7%b0%a1%e5%8c%96","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/154589\/","title":{"rendered":"\u5c0d Oracle \u6578\u64da\u5eab\u4e2d\u7684\u5927\u8868\u7ba1\u7406\u7684\u7c21\u5316"},"content":{"rendered":"<h1 id=\"%e5%b0%8d-oracle-%e6%95%b8%e6%93%9a%e5%ba%ab%e4%b8%ad%e7%9a%84%e5%a4%a7%e8%a1%a8%e7%ae%a1%e7%90%86%e7%9a%84%e7%b0%a1%e5%8c%96-DkcnLJCkKf\">\u5c0d Oracle \u6578\u64da\u5eab\u4e2d\u7684\u5927\u8868\u7ba1\u7406\u7684\u7c21\u5316<\/h1>\n<p>\u5728\u7576\u4eca\u6578\u64da\u9a45\u52d5\u7684\u4e16\u754c\u4e2d\uff0c\u6578\u64da\u5eab\u7684\u7ba1\u7406\u8b8a\u5f97\u8d8a\u4f86\u8d8a\u91cd\u8981\u3002\u7279\u5225\u662f\u5c0d\u65bc\u4f7f\u7528 Oracle \u6578\u64da\u5eab\u7684\u4f01\u696d\u4f86\u8aaa\uff0c\u5982\u4f55\u6709\u6548\u5730\u7ba1\u7406\u5927\u8868\uff08large tables\uff09\u662f\u78ba\u4fdd\u7cfb\u7d71\u6027\u80fd\u548c\u6578\u64da\u53ef\u7528\u6027\u7684\u95dc\u9375\u3002\u672c\u6587\u5c07\u63a2\u8a0e\u4e00\u4e9b\u7c21\u5316 Oracle \u6578\u64da\u5eab\u4e2d\u5927\u8868\u7ba1\u7406\u7684\u65b9\u6cd5\uff0c\u5e6b\u52a9\u6578\u64da\u5eab\u7ba1\u7406\u54e1\uff08DBA\uff09\u63d0\u9ad8\u5de5\u4f5c\u6548\u7387\u3002<\/p>\n<h2 id=\"%e5%a4%a7%e8%a1%a8%e7%9a%84%e6%8c%91%e6%88%b0-DkcnLJCkKf\">\u5927\u8868\u7684\u6311\u6230<\/h2>\n<p>\u5927\u8868\u901a\u5e38\u6307\u7684\u662f\u5305\u542b\u5927\u91cf\u884c\u6216\u5217\u7684\u6578\u64da\u8868\u3002\u9019\u4e9b\u8868\u7684\u7ba1\u7406\u9762\u81e8\u591a\u7a2e\u6311\u6230\uff0c\u5305\u62ec\uff1a<\/p>\n<ul>\n<li>\u6027\u80fd\u554f\u984c\uff1a\u96a8\u8457\u6578\u64da\u91cf\u7684\u589e\u52a0\uff0c\u67e5\u8a62\u548c\u66f4\u65b0\u64cd\u4f5c\u7684\u6027\u80fd\u53ef\u80fd\u6703\u4e0b\u964d\u3002<\/li>\n<li>\u7dad\u8b77\u56f0\u96e3\uff1a\u5927\u8868\u7684\u5099\u4efd\u3001\u6062\u5fa9\u548c\u6578\u64da\u6e05\u7406\u7b49\u7dad\u8b77\u5de5\u4f5c\u8b8a\u5f97\u66f4\u52a0\u8907\u96dc\u3002<\/li>\n<li>\u6578\u64da\u5b8c\u6574\u6027\uff1a\u5728\u5927\u8868\u4e2d\uff0c\u78ba\u4fdd\u6578\u64da\u7684\u4e00\u81f4\u6027\u548c\u5b8c\u6574\u6027\u662f\u4e00\u9805\u6311\u6230\u3002<\/li>\n<\/ul>\n<h2 id=\"%e7%b0%a1%e5%8c%96%e5%a4%a7%e8%a1%a8%e7%ae%a1%e7%90%86%e7%9a%84%e6%96%b9%e6%b3%95-DkcnLJCkKf\">\u7c21\u5316\u5927\u8868\u7ba1\u7406\u7684\u65b9\u6cd5<\/h2>\n<h3 id=\"1-%e4%bd%bf%e7%94%a8%e5%88%86%e5%8d%80%e6%8a%80%e8%a1%93-DkcnLJCkKf\">1. \u4f7f\u7528\u5206\u5340\u6280\u8853<\/h3>\n<p>Oracle \u63d0\u4f9b\u4e86\u5206\u5340\uff08Partitioning\uff09\u529f\u80fd\uff0c\u53ef\u4ee5\u5c07\u5927\u8868\u5283\u5206\u70ba\u591a\u500b\u8f03\u5c0f\u7684\u90e8\u5206\u3002\u9019\u6a23\u4e0d\u50c5\u53ef\u4ee5\u63d0\u9ad8\u67e5\u8a62\u6027\u80fd\uff0c\u9084\u80fd\u7c21\u5316\u6578\u64da\u7684\u7ba1\u7406\u3002\u4f8b\u5982\uff0c\u60a8\u53ef\u4ee5\u6839\u64da\u65e5\u671f\u3001\u5730\u7406\u4f4d\u7f6e\u6216\u5176\u4ed6\u6a19\u6e96\u5c0d\u6578\u64da\u9032\u884c\u5206\u5340\u3002\u4ee5\u4e0b\u662f\u4f7f\u7528\u5206\u5340\u7684\u57fa\u672c\u8a9e\u6cd5\uff1a<\/p>\n<pre><code>CREATE TABLE sales (\n    sale_id NUMBER,\n    sale_date DATE,\n    amount NUMBER\n)\nPARTITION BY RANGE (sale_date) (\n    PARTITION p1 VALUES LESS THAN (TO_DATE('2023-01-01', 'YYYY-MM-DD')),\n    PARTITION p2 VALUES LESS THAN (TO_DATE('2024-01-01', 'YYYY-MM-DD'))\n);<\/code><\/pre>\n<h3 id=\"2-%e5%ae%9a%e6%9c%9f%e6%b8%85%e7%90%86%e6%95%b8%e6%93%9a-DkcnLJCkKf\">2. \u5b9a\u671f\u6e05\u7406\u6578\u64da<\/h3>\n<p>\u5b9a\u671f\u6e05\u7406\u4e0d\u518d\u9700\u8981\u7684\u6578\u64da\u662f\u4fdd\u6301\u5927\u8868\u6027\u80fd\u7684\u6709\u6548\u65b9\u6cd5\u3002\u53ef\u4ee5\u4f7f\u7528 Oracle \u7684\u81ea\u52d5\u5316\u5de5\u5177\u4f86\u8a2d\u7f6e\u5b9a\u671f\u6e05\u7406\u4efb\u52d9\u3002\u4f8b\u5982\uff0c\u60a8\u53ef\u4ee5\u4f7f\u7528 PL\/SQL \u8173\u672c\u4f86\u522a\u9664\u904e\u671f\u6578\u64da\uff1a<\/p>\n<pre><code>BEGIN\n    DELETE FROM sales WHERE sale_date &lt; ADD_MONTHS(SYSDATE, -12);\n    COMMIT;\nEND;<\/code><\/pre>\n<h3 id=\"3-%e4%bd%bf%e7%94%a8%e7%b4%a2%e5%bc%95%e5%84%aa%e5%8c%96%e6%9f%a5%e8%a9%a2-DkcnLJCkKf\">3. \u4f7f\u7528\u7d22\u5f15\u512a\u5316\u67e5\u8a62<\/h3>\n<p>\u70ba\u5927\u8868\u5275\u5efa\u9069\u7576\u7684\u7d22\u5f15\u53ef\u4ee5\u986f\u8457\u63d0\u9ad8\u67e5\u8a62\u6027\u80fd\u3002\u6839\u64da\u67e5\u8a62\u7684\u7279\u9ede\uff0c\u9078\u64c7\u5408\u9069\u7684\u7d22\u5f15\u985e\u578b\uff08\u5982 B-tree \u7d22\u5f15\u6216\u4f4d\u5716\u7d22\u5f15\uff09\u662f\u81f3\u95dc\u91cd\u8981\u7684\u3002\u4ee5\u4e0b\u662f\u5275\u5efa\u7d22\u5f15\u7684\u793a\u4f8b\uff1a<\/p>\n<pre><code>CREATE INDEX idx_sale_date ON sales (sale_date);<\/code><\/pre>\n<h3 id=\"4-%e7%9b%a3%e6%8e%a7%e5%92%8c%e8%aa%bf%e6%95%b4%e6%80%a7%e8%83%bd-DkcnLJCkKf\">4. \u76e3\u63a7\u548c\u8abf\u6574\u6027\u80fd<\/h3>\n<p>\u4f7f\u7528 Oracle \u7684\u6027\u80fd\u76e3\u63a7\u5de5\u5177\uff08\u5982 AWR \u548c ASH \u5831\u544a\uff09\u4f86\u5206\u6790\u67e5\u8a62\u6027\u80fd\uff0c\u4e26\u6839\u64da\u9700\u8981\u9032\u884c\u8abf\u6574\u3002\u9019\u4e9b\u5de5\u5177\u53ef\u4ee5\u5e6b\u52a9\u60a8\u8b58\u5225\u6027\u80fd\u74f6\u9838\uff0c\u4e26\u63d0\u4f9b\u512a\u5316\u5efa\u8b70\u3002<\/p>\n<h2 id=\"%e7%b5%90%e8%ab%96-DkcnLJCkKf\">\u7d50\u8ad6<\/h2>\n<p>\u6709\u6548\u7ba1\u7406 Oracle \u6578\u64da\u5eab\u4e2d\u7684\u5927\u8868\u662f\u78ba\u4fdd\u7cfb\u7d71\u6027\u80fd\u548c\u6578\u64da\u53ef\u7528\u6027\u7684\u95dc\u9375\u3002\u901a\u904e\u4f7f\u7528\u5206\u5340\u6280\u8853\u3001\u5b9a\u671f\u6e05\u7406\u6578\u64da\u3001\u512a\u5316\u7d22\u5f15\u4ee5\u53ca\u76e3\u63a7\u6027\u80fd\uff0c\u6578\u64da\u5eab\u7ba1\u7406\u54e1\u53ef\u4ee5\u7c21\u5316\u5927\u8868\u7684\u7ba1\u7406\u904e\u7a0b\uff0c\u5f9e\u800c\u63d0\u9ad8\u6574\u9ad4\u6548\u7387\u3002\u5c0d\u65bc\u9700\u8981\u9ad8\u6548\u6578\u64da\u7ba1\u7406\u7684\u4f01\u696d\uff0c\u9078\u64c7\u5408\u9069\u7684 <a href=\"https:\/\/server.hk\">VPS<\/a> \u89e3\u6c7a\u65b9\u6848\u4e5f\u662f\u4e00\u500b\u91cd\u8981\u7684\u8003\u91cf\uff0c\u9019\u6a23\u53ef\u4ee5\u78ba\u4fdd\u6578\u64da\u5eab\u904b\u884c\u5728\u7a69\u5b9a\u548c\u9ad8\u6548\u7684\u74b0\u5883\u4e2d\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u7c21\u5316 Oracle \u6578\u64da\u5eab\u4e2d\u5927\u8868\u7684\u7ba1\u7406\uff0c\u63d0\u5347\u6027\u80fd\u8207\u6548\u7387\uff0c\u512a\u5316\u6578\u64da\u5b58\u53d6\u8207\u7dad\u8b77\u6d41\u7a0b\uff0c\u52a9\u529b\u4f01\u696d\u6578\u64da\u7ba1\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-154589","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/154589","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=154589"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/154589\/revisions"}],"predecessor-version":[{"id":154590,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/154589\/revisions\/154590"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=154589"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=154589"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=154589"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}