{"id":209768,"date":"2022-08-18T15:27:06","date_gmt":"2022-08-18T07:27:06","guid":{"rendered":"https:\/\/www.keaglegz.com\/209768.html"},"modified":"2026-07-15T06:26:58","modified_gmt":"2026-07-14T22:26:58","slug":"%e8%a6%86%e7%9b%96%e7%b4%a2%e5%bc%95%e4%b8%8e%e5%9b%9e%e8%a1%a8%e6%9f%a5%e8%af%a2","status":"publish","type":"post","link":"https:\/\/www.dongwubaike.cn\/fanhao\/209768.html","title":{"rendered":"\u8986\u76d6\u7d22\u5f15\u4e0e\u56de\u8868\u67e5\u8be2"},"content":{"rendered":"\n<p>  \t<span><strong>\u56de\u8868\u67e5\u8be2<\/strong>\uff1a\u56de\u5230\u805a\u96c6\u7d22\u5f15\u6784\u5efa\u7684b+tree\u53bb\u641c\u7d22\u7684\u8fc7\u7a0b\uff0c\u5c31\u79f0\u4e3a\u56de\u8868<\/span><\/p>\n<p>  \t<span>\u666e\u901a\u7d22\u5f15\uff1ao_orderDATE<\/span><\/p>\n<p>  \t<span>\u67e5\u8be2\uff1ao_totalprice<\/span><\/p>\n<p>  \t<span>select o_totalprice from orders where o_orderDATE=&#039;1996-02-06&#039;;<\/span><\/p>\n<p>  \t<span>\u56de\u8868\u67e5\u8be2\u8981\u591a\u7ecf\u5386\u51e0\u6b21io\uff0c\u6d88\u8017\u65f6\u95f4\u66f4\u591a\uff0c\u6027\u80fd\u76f8\u5bf9\u8f83\u5dee<\/span><\/p>\n<p>  \t<span><strong>\u8986\u76d6\u7d22\u5f15<\/strong>\uff1a\u5728\u4e00\u4e2a\u67e5\u8be2\u8bed\u53e5\u4e2d\uff0c\u4f7f\u7528\u5230\u7684b+tree\u4e0a\u9762\u7684\u6570\u636e\u5c31\u8986\u76d6\u6211\u8981\u67e5\u8be2\u9700\u6c42\uff0c\u79f0\u4e3a\u8986\u76d6\u7d22\u5f15<\/span><\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.dongwubaike.cn\/fanhao\/wp-content\/uploads\/2026\/06\/4e1cada8bb0345fbbe8b949e705d9267.webp\" alt=\"\"><\/p>\n<p>  \t<span>Using index<\/span><\/p>\n<p>  \t<span>select o_orderkey from orders where o_orderDATE=&#039;1996-12-01&#039;;<\/span><\/p>\n<p>  \t<span>\uff081996-12-01\uff0c1\uff09<\/span><\/p>\n<p>  \t<span>\u4f18\u70b9\uff1a\u53ef\u4ee5\u51cf\u5c11\u5bf9b+tree\u7684\u641c\u7d22\u6b21\u6570\uff08\u51cf\u5c11io\u7684\u6d88\u8017\uff0c\u4e0d\u7528\u56de\u8868\u67e5\u8be2\uff09<\/span><\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u56de\u8868\u67e5\u8be2\uff1a\u56de\u5230\u805a\u96c6\u7d22\u5f15\u6784\u5efa\u7684b+tree\u53bb\u641c\u7d22\u7684\u8fc7\u7a0b\uff0c\u5c31\u79f0\u4e3a\u56de\u8868   \t\u666e\u901a\u7d22\u5f15\uff1ao_orderDATE<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[],"tags":[],"class_list":["post-209768","post","type-post","status-publish","format-standard","hentry"],"_links":{"self":[{"href":"https:\/\/www.dongwubaike.cn\/fanhao\/wp-json\/wp\/v2\/posts\/209768","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.dongwubaike.cn\/fanhao\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.dongwubaike.cn\/fanhao\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.dongwubaike.cn\/fanhao\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.dongwubaike.cn\/fanhao\/wp-json\/wp\/v2\/comments?post=209768"}],"version-history":[{"count":1,"href":"https:\/\/www.dongwubaike.cn\/fanhao\/wp-json\/wp\/v2\/posts\/209768\/revisions"}],"predecessor-version":[{"id":308292,"href":"https:\/\/www.dongwubaike.cn\/fanhao\/wp-json\/wp\/v2\/posts\/209768\/revisions\/308292"}],"wp:attachment":[{"href":"https:\/\/www.dongwubaike.cn\/fanhao\/wp-json\/wp\/v2\/media?parent=209768"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.dongwubaike.cn\/fanhao\/wp-json\/wp\/v2\/categories?post=209768"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.dongwubaike.cn\/fanhao\/wp-json\/wp\/v2\/tags?post=209768"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}