{"id":95060,"date":"2024-10-19T21:54:21","date_gmt":"2024-10-19T13:54:21","guid":{"rendered":"https:\/\/server.hk\/cnblog\/95060\/"},"modified":"2024-10-19T21:54:22","modified_gmt":"2024-10-19T13:54:22","slug":"oracle%e5%ad%98%e5%84%b2%e9%81%8e%e7%a8%8b%e4%b8%ad%e6%ba%96%e7%a2%ba%e7%9a%84%e5%af%a6%e7%8f%be%e5%88%86%e9%a0%81%e5%af%a6%e6%93%8d","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/95060\/","title":{"rendered":"Oracle\u5b58\u5132\u904e\u7a0b\u4e2d\u6e96\u78ba\u7684\u5be6\u73fe\u5206\u9801\u5be6\u64cd"},"content":{"rendered":"<h1 id=\"oracle%e5%ad%98%e5%84%b2%e9%81%8e%e7%a8%8b%e4%b8%ad%e6%ba%96%e7%a2%ba%e7%9a%84%e5%af%a6%e7%8f%be%e5%88%86%e9%a0%81%e5%af%a6%e6%93%8d-KRjODocoRL\">Oracle\u5b58\u5132\u904e\u7a0b\u4e2d\u6e96\u78ba\u7684\u5be6\u73fe\u5206\u9801\u5be6\u64cd<\/h1>\n<p>\u5728\u7576\u4eca\u7684\u6578\u64da\u9a45\u52d5\u4e16\u754c\u4e2d\uff0c\u6578\u64da\u7684\u6709\u6548\u7ba1\u7406\u548c\u67e5\u8a62\u6548\u7387\u81f3\u95dc\u91cd\u8981\u3002Oracle\u6578\u64da\u5eab\u4f5c\u70ba\u4e00\u500b\u5f37\u5927\u7684\u6578\u64da\u7ba1\u7406\u7cfb\u7d71\uff0c\u63d0\u4f9b\u4e86\u591a\u7a2e\u5de5\u5177\u548c\u529f\u80fd\u4f86\u5e6b\u52a9\u958b\u767c\u8005\u9ad8\u6548\u5730\u8655\u7406\u6578\u64da\u3002\u5176\u4e2d\uff0c\u5206\u9801\u67e5\u8a62\u662f\u4e00\u500b\u5e38\u898b\u7684\u9700\u6c42\uff0c\u7279\u5225\u662f\u5728\u8655\u7406\u5927\u91cf\u6578\u64da\u6642\u3002\u672c\u6587\u5c07\u63a2\u8a0e\u5982\u4f55\u5728Oracle\u5b58\u5132\u904e\u7a0b\u4e2d\u6e96\u78ba\u5730\u5be6\u73fe\u5206\u9801\u529f\u80fd\uff0c\u4e26\u63d0\u4f9b\u5be6\u7528\u7684\u793a\u4f8b\u548c\u4ee3\u78bc\u7247\u6bb5\u3002<\/p>\n<h2 id=\"%e4%bb%80%e9%ba%bc%e6%98%af%e5%88%86%e9%a0%81%e6%9f%a5%e8%a9%a2%ef%bc%9f-KRjODocoRL\">\u4ec0\u9ebc\u662f\u5206\u9801\u67e5\u8a62\uff1f<\/h2>\n<p>\u5206\u9801\u67e5\u8a62\u662f\u6307\u5c07\u67e5\u8a62\u7d50\u679c\u5206\u6210\u591a\u500b\u9801\u9762\uff0c\u4ee5\u4fbf\u7528\u6236\u53ef\u4ee5\u9010\u6b65\u67e5\u770b\u6578\u64da\u3002\u9019\u5728\u986f\u793a\u5927\u91cf\u6578\u64da\u6642\u7279\u5225\u6709\u7528\uff0c\u56e0\u70ba\u5b83\u53ef\u4ee5\u63d0\u9ad8\u7528\u6236\u9ad4\u9a57\u4e26\u6e1b\u5c11\u4e00\u6b21\u6027\u52a0\u8f09\u7684\u6578\u64da\u91cf\u3002\u5206\u9801\u67e5\u8a62\u901a\u5e38\u6d89\u53ca\u5230\u5169\u500b\u4e3b\u8981\u53c3\u6578\uff1a\u7576\u524d\u9801\u78bc\u548c\u6bcf\u9801\u986f\u793a\u7684\u8a18\u9304\u6578\u3002<\/p>\n<h2 id=\"oracle%e4%b8%ad%e7%9a%84%e5%88%86%e9%a0%81%e6%9f%a5%e8%a9%a2%e5%af%a6%e7%8f%be-KRjODocoRL\">Oracle\u4e2d\u7684\u5206\u9801\u67e5\u8a62\u5be6\u73fe<\/h2>\n<p>\u5728Oracle\u4e2d\uff0c\u5be6\u73fe\u5206\u9801\u67e5\u8a62\u7684\u5e38\u7528\u65b9\u6cd5\u662f\u4f7f\u7528ROWNUM\u6216ROW_NUMBER()\u51fd\u6578\u3002\u4ee5\u4e0b\u662f\u4f7f\u7528ROW_NUMBER()\u51fd\u6578\u7684\u57fa\u672c\u6b65\u9a5f\uff1a<\/p>\n<h3 id=\"%e6%ad%a5%e9%a9%9f1%ef%bc%9a%e5%89%b5%e5%bb%ba%e7%a4%ba%e4%be%8b%e8%a1%a8-KRjODocoRL\">\u6b65\u9a5f1\uff1a\u5275\u5efa\u793a\u4f8b\u8868<\/h3>\n<pre><code>CREATE TABLE employees (\n    employee_id NUMBER PRIMARY KEY,\n    first_name VARCHAR2(50),\n    last_name VARCHAR2(50),\n    hire_date DATE\n);\n<\/code><\/pre>\n<h3 id=\"%e6%ad%a5%e9%a9%9f2%ef%bc%9a%e6%8f%92%e5%85%a5%e7%a4%ba%e4%be%8b%e6%95%b8%e6%93%9a-KRjODocoRL\">\u6b65\u9a5f2\uff1a\u63d2\u5165\u793a\u4f8b\u6578\u64da<\/h3>\n<pre><code>INSERT INTO employees (employee_id, first_name, last_name, hire_date) VALUES (1, 'John', 'Doe', TO_DATE('2020-01-01', 'YYYY-MM-DD'));\nINSERT INTO employees (employee_id, first_name, last_name, hire_date) VALUES (2, 'Jane', 'Smith', TO_DATE('2020-02-01', 'YYYY-MM-DD'));\n-- \u7e7c\u7e8c\u63d2\u5165\u66f4\u591a\u6578\u64da\n<\/code><\/pre>\n<h3 id=\"%e6%ad%a5%e9%a9%9f3%ef%bc%9a%e4%bd%bf%e7%94%a8row_number%e9%80%b2%e8%a1%8c%e5%88%86%e9%a0%81%e6%9f%a5%e8%a9%a2-KRjODocoRL\">\u6b65\u9a5f3\uff1a\u4f7f\u7528ROW_NUMBER()\u9032\u884c\u5206\u9801\u67e5\u8a62<\/h3>\n<p>\u4ee5\u4e0b\u662f\u4e00\u500b\u4f7f\u7528ROW_NUMBER()\u51fd\u6578\u7684\u67e5\u8a62\u793a\u4f8b\uff0c\u8a72\u67e5\u8a62\u5c07\u8fd4\u56de\u6307\u5b9a\u9801\u78bc\u7684\u6578\u64da\uff1a<\/p>\n<pre><code>DECLARE\n    v_page_number NUMBER := 1; -- \u7576\u524d\u9801\u78bc\n    v_page_size NUMBER := 10;   -- \u6bcf\u9801\u986f\u793a\u7684\u8a18\u9304\u6578\nBEGIN\n    FOR rec IN (\n        SELECT *\n        FROM (\n            SELECT e.*, ROW_NUMBER() OVER (ORDER BY e.hire_date) AS rn\n            FROM employees e\n        )\n        WHERE rn BETWEEN ((v_page_number - 1) * v_page_size + 1) AND (v_page_number * v_page_size)\n    ) LOOP\n        DBMS_OUTPUT.PUT_LINE(rec.first_name || ' ' || rec.last_name);\n    END LOOP;\nEND;\n<\/code><\/pre>\n<h2 id=\"%e6%b3%a8%e6%84%8f%e4%ba%8b%e9%a0%85-KRjODocoRL\">\u6ce8\u610f\u4e8b\u9805<\/h2>\n<ul>\n<li>\u78ba\u4fdd\u5728\u4f7f\u7528ROW_NUMBER()\u6642\uff0cORDER BY\u5b50\u53e5\u662f\u5fc5\u9700\u7684\uff0c\u56e0\u70ba\u5b83\u6c7a\u5b9a\u4e86\u6578\u64da\u7684\u6392\u5e8f\u65b9\u5f0f\u3002<\/li>\n<li>\u5728\u5be6\u969b\u61c9\u7528\u4e2d\uff0c\u9801\u78bc\u548c\u6bcf\u9801\u5927\u5c0f\u61c9\u6839\u64da\u7528\u6236\u7684\u9700\u6c42\u9032\u884c\u8abf\u6574\u3002<\/li>\n<li>\u8003\u616e\u5230\u6027\u80fd\uff0c\u5c0d\u65bc\u975e\u5e38\u5927\u7684\u6578\u64da\u96c6\uff0c\u53ef\u80fd\u9700\u8981\u9032\u884c\u984d\u5916\u7684\u512a\u5316\uff0c\u4f8b\u5982\u7d22\u5f15\u7684\u4f7f\u7528\u3002<\/li>\n<\/ul>\n<h2 id=\"%e7%b8%bd%e7%b5%90-KRjODocoRL\">\u7e3d\u7d50<\/h2>\n<p>\u5728Oracle\u4e2d\u5be6\u73fe\u5206\u9801\u67e5\u8a62\u662f\u4e00\u500b\u76f8\u5c0d\u7c21\u55ae\u7684\u904e\u7a0b\uff0c\u901a\u904e\u4f7f\u7528ROW_NUMBER()\u51fd\u6578\uff0c\u53ef\u4ee5\u6709\u6548\u5730\u7ba1\u7406\u548c\u986f\u793a\u5927\u91cf\u6578\u64da\u3002\u9019\u4e0d\u50c5\u63d0\u9ad8\u4e86\u67e5\u8a62\u6548\u7387\uff0c\u9084\u6539\u5584\u4e86\u7528\u6236\u9ad4\u9a57\u3002\u5c0d\u65bc\u9700\u8981\u8655\u7406\u5927\u91cf\u6578\u64da\u7684\u61c9\u7528\u7a0b\u5e8f\uff0c\u6b63\u78ba\u7684\u5206\u9801\u5be6\u73fe\u662f\u81f3\u95dc\u91cd\u8981\u7684\u3002<\/p>\n<p>\u5982\u679c\u60a8\u6b63\u5728\u5c0b\u627e\u9ad8\u6548\u7684\u6578\u64da\u7ba1\u7406\u89e3\u6c7a\u65b9\u6848\uff0c\u8003\u616e\u4f7f\u7528<a href=\"https:\/\/server.hk\">\u9999\u6e2fVPS<\/a>\u4f86\u652f\u6301\u60a8\u7684Oracle\u6578\u64da\u5eab\u61c9\u7528\u3002\u7121\u8ad6\u662f\u96f2\u670d\u52d9\u5668\u9084\u662f\u5176\u4ed6\u670d\u52d9\uff0cServer.HK\u90fd\u80fd\u63d0\u4f9b\u7a69\u5b9a\u7684\u652f\u6301\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u5b78\u7fd2\u5982\u4f55\u5728Oracle\u5b58\u5132\u904e\u7a0b\u4e2d\u6e96\u78ba\u5be6\u73fe\u5206\u9801\uff0c\u63d0\u5347\u6578\u64da\u67e5\u8a62\u6548\u7387\uff0c\u512a\u5316\u6027\u80fd\uff0c\u7c21\u5316\u64cd\u4f5c\u6d41\u7a0b\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-95060","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/95060","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=95060"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/95060\/revisions"}],"predecessor-version":[{"id":95061,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/95060\/revisions\/95061"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=95060"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=95060"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=95060"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}