{"id":5000,"date":"2024-11-14T09:40:59","date_gmt":"2024-11-14T01:40:59","guid":{"rendered":"https:\/\/fwq.ai\/blog\/5000\/"},"modified":"2024-11-14T09:40:59","modified_gmt":"2024-11-14T01:40:59","slug":"oracle%e7%b4%a2%e5%bc%95%e7%b1%bb%e5%9e%8b%e6%80%8e%e4%b9%88%e9%80%89%e6%8b%a9","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/5000\/","title":{"rendered":"oracle\u7d22\u5f15\u7c7b\u578b\u600e\u4e48\u9009\u62e9"},"content":{"rendered":"<p><strong> \u7d22\u5f15\u7c7b\u578b\u9009\u62e9<\/strong><\/p>\n<p>\u5728 Oracle \u4e2d\uff0c\u7d22\u5f15\u662f\u63d0\u9ad8\u67e5\u8be2\u6027\u80fd\u7684\u5173\u952e\u4f18\u5316\u6280\u672f\u3002\u9009\u62e9\u9002\u5f53\u7684\u7d22\u5f15\u7c7b\u578b\u5bf9\u4e8e\u786e\u4fdd\u6700\u4f73\u6027\u80fd\u81f3\u5173\u91cd\u8981\u3002\u4e0d\u540c\u7684\u7d22\u5f15\u7c7b\u578b\u5177\u6709\u4e0d\u540c\u7684\u7279\u70b9\u548c\u7528\u4f8b\uff0c\u4ee5\u4e0b\u4ecb\u7ecd\u4e86\u5e38\u89c1\u7c7b\u578b\u7684\u7d22\u5f15\u53ca\u5176\u9002\u5408\u7684\u573a\u666f\uff1a<\/p>\n<p><strong>B-Tree \u7d22\u5f15<\/strong><\/p>\n<ul>\n<li>\u7c7b\u578b\uff1a\u5e73\u8861\u6811\u7ed3\u6784\u7d22\u5f15<\/li>\n<li>\u7279\u70b9\uff1a\u5feb\u901f\u67e5\u627e\u3001\u8303\u56f4\u626b\u63cf\u9ad8\u6548<\/li>\n<li>\u7528\u4f8b\uff1a\u7cbe\u786e\u5339\u914d\u67e5\u8be2\u3001\u8303\u56f4\u67e5\u8be2\u3001\u6392\u5e8f\u67e5\u8be2<\/li>\n<\/ul>\n<p><strong>Hash \u7d22\u5f15<\/strong><\/p>\n<ul>\n<li>\u7c7b\u578b\uff1a\u57fa\u4e8e\u54c8\u5e0c\u51fd\u6570\u7684\u7d22\u5f15<\/li>\n<li>\u7279\u70b9\uff1a\u5feb\u901f\u7b49\u503c\u67e5\u627e\uff0c\u4e0d\u9002\u7528\u4e8e\u8303\u56f4\u67e5\u8be2<\/li>\n<li>\u7528\u4f8b\uff1a\u5916\u952e\u5173\u7cfb\u3001\u552f\u4e00\u6027\u7ea6\u675f\u3001\u5173\u8054\u67e5\u8be2<\/li>\n<\/ul>\n<p><strong>\u4f4d\u56fe\u7d22\u5f15<\/strong><\/p>\n<ul>\n<li>\u7c7b\u578b\uff1a\u57fa\u4e8e\u4f4d\u63a9\u7801\u7684\u7d22\u5f15<\/li>\n<li>\u7279\u70b9\uff1a\u9ad8\u6548\u7684 IN \u548c AND \u8fd0\u7b97\uff0c\u4e0d\u9002\u7528\u4e8e\u6392\u5e8f\u67e5\u8be2<\/li>\n<li>\u7528\u4f8b\uff1a\u591a\u5217\u8fc7\u6ee4\uff0c\u679a\u4e3e\u7c7b\u578b\u503c\u8fc7\u6ee4<\/li>\n<\/ul>\n<p><strong>\u57fa\u4e8e\u51fd\u6570\u7684\u7d22\u5f15<\/strong><\/p>\n<ul>\n<li>\u7c7b\u578b\uff1a\u57fa\u4e8e\u7528\u6237\u5b9a\u4e49\u51fd\u6570\u7684\u7d22\u5f15<\/li>\n<li>\u7279\u70b9\uff1a\u5141\u8bb8\u4f7f\u7528\u81ea\u5b9a\u4e49\u903b\u8f91\u8fdb\u884c\u7d22\u5f15\uff0c\u66f4\u7075\u6d3b<\/li>\n<li>\u7528\u4f8b\uff1a\u5bf9\u590d\u6742\u8868\u8fbe\u5f0f\u6216\u51fd\u6570\u8fdb\u884c\u7d22\u5f15<\/li>\n<\/ul>\n<p><strong>\u53cd\u5411\u7d22\u5f15<\/strong><\/p>\n<ul>\n<li>\u7c7b\u578b\uff1a\u53cd\u8f6c\u952e\u503c\u7684\u7d22\u5f15<\/li>\n<li>\u7279\u70b9\uff1a\u7528\u4e8e\u67e5\u627e\u5305\u542b\u6307\u5b9a\u503c\u7684\u8bb0\u5f55<\/li>\n<li>\u7528\u4f8b\uff1a\u5168\u6587\u641c\u7d22\u3001\u6a21\u5f0f\u5339\u914d<\/li>\n<\/ul>\n<p><strong>\u9009\u62e9\u56e0\u7d20<\/strong><\/p>\n<p>\u9009\u62e9\u7d22\u5f15\u7c7b\u578b\u65f6\uff0c\u9700\u8981\u8003\u8651\u4ee5\u4e0b\u56e0\u7d20\uff1a<\/p>\n<ul>\n<li> <strong>\u67e5\u8be2\u7c7b\u578b\uff1a<\/strong>\u786e\u5b9a\u67e5\u8be2\u7684\u7c7b\u578b\uff08\u7b49\u503c\u3001\u8303\u56f4\u3001\u6392\u5e8f\u7b49\uff09\u4ee5\u9009\u62e9\u5408\u9002\u7684\u7d22\u5f15\u7c7b\u578b\u3002<\/li>\n<li> <strong>\u6570\u636e\u5206\u5e03\uff1a<\/strong>\u5206\u6790\u8868\u4e2d\u6570\u636e\u7684\u5206\u5e03\u4ee5\u786e\u5b9a\u6700\u9002\u5408\u7684\u7d22\u5f15\u7c7b\u578b\u3002<\/li>\n<li> <strong>\u5217\u9009\u62e9\u6027\uff1a<\/strong>\u5217\u7684\u9009\u62e9\u6027\uff08\u552f\u4e00\u503c\u4e0e\u91cd\u590d\u503c\u7684\u6bd4\u7387\uff09\u5f71\u54cd\u7d22\u5f15\u7684\u6548\u7387\u3002<\/li>\n<li> <strong>\u6570\u636e\u5927\u5c0f\uff1a<\/strong>\u7d22\u5f15\u7684\u5927\u5c0f\u4e0e\u8868\u7684\u5927\u5c0f\u6709\u5173\uff0c\u9700\u8981\u8003\u8651\u5bf9\u6027\u80fd\u548c\u5b58\u50a8\u7a7a\u95f4\u7684\u5f71\u54cd\u3002<\/li>\n<\/ul>\n<p>\u901a\u8fc7\u4ed4\u7ec6\u8003\u8651\u8fd9\u4e9b\u56e0\u7d20\uff0c\u53ef\u4ee5\u4e3a\u4e0d\u540c\u7684\u67e5\u8be2\u573a\u666f\u9009\u62e9\u6700\u5408\u9002\u7684\u7d22\u5f15\u7c7b\u578b\uff0c\u4ece\u800c\u6700\u5927\u5316\u67e5\u8be2\u6027\u80fd\u3002<\/p>\n<p>\u4ee5\u4e0a\u5c31\u662f\u7d22\u5f15\u7c7b\u578b\u600e\u4e48\u9009\u62e9\u7684\u8be6\u7ec6\u5185\u5bb9\uff0c\u66f4\u591a\u8bf7\u5173\u6ce8\u7c73\u4e91\u7f51\u5176\u5b83\u76f8\u5173\u6587\u7ae0\uff01<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u7d22\u5f15\u7c7b\u578b\u9009\u62e9 \u5728 Oracle \u4e2d\uff0c\u7d22\u5f15\u662f\u63d0\u9ad8\u67e5\u8be2\u6027\u80fd\u7684\u5173\u952e\u4f18\u5316\u6280\u672f\u3002\u9009\u62e9\u9002\u5f53\u7684\u7d22\u5f15\u7c7b\u578b\u5bf9\u4e8e\u786e\u4fdd\u6700\u4f73\u6027\u80fd\u81f3\u5173\u91cd\u8981\u3002\u4e0d\u540c\u7684\u7d22\u5f15\u7c7b\u578b\u5177\u6709\u4e0d\u540c\u7684\u7279\u70b9\u548c\u7528\u4f8b\uff0c\u4ee5\u4e0b\u4ecb\u7ecd\u4e86\u5e38\u89c1\u7c7b\u578b\u7684\u7d22\u5f15\u53ca\u5176\u9002\u5408\u7684\u573a\u666f\uff1a B-Tree \u7d22\u5f15 \u7c7b\u578b\uff1a\u5e73\u8861\u6811\u7ed3\u6784\u7d22\u5f15 \u7279\u70b9\uff1a\u5feb\u901f\u67e5\u627e\u3001\u8303\u56f4\u626b\u63cf\u9ad8\u6548 \u7528\u4f8b\uff1a\u7cbe\u786e\u5339\u914d\u67e5\u8be2\u3001\u8303\u56f4\u67e5\u8be2\u3001\u6392\u5e8f\u67e5\u8be2 Hash \u7d22\u5f15 \u7c7b\u578b\uff1a\u57fa\u4e8e\u54c8\u5e0c\u51fd\u6570\u7684\u7d22\u5f15 \u7279\u70b9\uff1a\u5feb\u901f\u7b49\u503c\u67e5\u627e\uff0c\u4e0d\u9002\u7528\u4e8e\u8303\u56f4\u67e5\u8be2 \u7528\u4f8b\uff1a\u5916\u952e\u5173\u7cfb\u3001\u552f\u4e00\u6027\u7ea6\u675f\u3001\u5173\u8054\u67e5\u8be2 \u4f4d\u56fe\u7d22\u5f15 \u7c7b\u578b\uff1a\u57fa\u4e8e\u4f4d\u63a9\u7801\u7684\u7d22\u5f15 \u7279\u70b9\uff1a\u9ad8\u6548\u7684 IN \u548c AND \u8fd0\u7b97\uff0c\u4e0d\u9002\u7528\u4e8e\u6392\u5e8f\u67e5\u8be2 \u7528\u4f8b\uff1a\u591a\u5217\u8fc7\u6ee4\uff0c\u679a\u4e3e\u7c7b\u578b\u503c\u8fc7\u6ee4 \u57fa\u4e8e\u51fd\u6570\u7684\u7d22\u5f15 \u7c7b\u578b\uff1a\u57fa\u4e8e\u7528\u6237\u5b9a\u4e49\u51fd\u6570\u7684\u7d22\u5f15 \u7279\u70b9\uff1a\u5141\u8bb8\u4f7f\u7528\u81ea\u5b9a\u4e49\u903b\u8f91\u8fdb\u884c\u7d22\u5f15\uff0c\u66f4\u7075\u6d3b \u7528\u4f8b\uff1a\u5bf9\u590d\u6742\u8868\u8fbe\u5f0f\u6216\u51fd\u6570\u8fdb\u884c\u7d22\u5f15 \u53cd\u5411\u7d22\u5f15 \u7c7b\u578b\uff1a\u53cd\u8f6c\u952e\u503c\u7684\u7d22\u5f15 \u7279\u70b9\uff1a\u7528\u4e8e\u67e5\u627e\u5305\u542b\u6307\u5b9a\u503c\u7684\u8bb0\u5f55 \u7528\u4f8b\uff1a\u5168\u6587\u641c\u7d22\u3001\u6a21\u5f0f\u5339\u914d \u9009\u62e9\u56e0\u7d20 \u9009\u62e9\u7d22\u5f15\u7c7b\u578b\u65f6\uff0c\u9700\u8981\u8003\u8651\u4ee5\u4e0b\u56e0\u7d20\uff1a \u67e5\u8be2\u7c7b\u578b\uff1a\u786e\u5b9a\u67e5\u8be2\u7684\u7c7b\u578b\uff08\u7b49\u503c\u3001\u8303\u56f4\u3001\u6392\u5e8f\u7b49\uff09\u4ee5\u9009\u62e9\u5408\u9002\u7684\u7d22\u5f15\u7c7b\u578b\u3002 \u6570\u636e\u5206\u5e03\uff1a\u5206\u6790\u8868\u4e2d\u6570\u636e\u7684\u5206\u5e03\u4ee5\u786e\u5b9a\u6700\u9002\u5408\u7684\u7d22\u5f15\u7c7b\u578b\u3002 \u5217\u9009\u62e9\u6027\uff1a\u5217\u7684\u9009\u62e9\u6027\uff08\u552f\u4e00\u503c\u4e0e\u91cd\u590d\u503c\u7684\u6bd4\u7387\uff09\u5f71\u54cd\u7d22\u5f15\u7684\u6548\u7387\u3002 \u6570\u636e\u5927\u5c0f\uff1a\u7d22\u5f15\u7684\u5927\u5c0f\u4e0e\u8868\u7684\u5927\u5c0f\u6709\u5173\uff0c\u9700\u8981\u8003\u8651\u5bf9\u6027\u80fd\u548c\u5b58\u50a8\u7a7a\u95f4\u7684\u5f71\u54cd\u3002 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\u4ee5\u4e0a\u5c31\u662f\u7d22\u5f15\u7c7b\u578b\u600e\u4e48\u9009\u62e9\u7684\u8be6\u7ec6\u5185\u5bb9\uff0c\u66f4\u591a\u8bf7\u5173\u6ce8\u7c73\u4e91\u7f51\u5176\u5b83\u76f8\u5173\u6587\u7ae0\uff01<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[16],"tags":[],"class_list":["post-5000","post","type-post","status-publish","format-standard","hentry","category-16"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/5000","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/comments?post=5000"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/5000\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=5000"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=5000"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=5000"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}