{"id":199681,"date":"2025-05-06T10:46:18","date_gmt":"2025-05-06T02:46:18","guid":{"rendered":"https:\/\/server.hk\/cnblog\/199681\/"},"modified":"2025-05-06T10:46:18","modified_gmt":"2025-05-06T02:46:18","slug":"mysql%e7%b4%a2%e5%bc%95%e7%9a%84%e5%ba%95%e5%b1%82%e5%b7%a5%e4%bd%9c%e5%8e%9f%e7%90%86","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/199681\/","title":{"rendered":"MySQL\u7d22\u5f15\u7684\u5e95\u5c42\u5de5\u4f5c\u539f\u7406"},"content":{"rendered":"

<\/b> <\/p>\n

MySQL\u7d22\u5f15\u7684\u5e95\u5c42\u5de5\u4f5c\u539f\u7406<\/h1>\n

\u201c\u7eb5\u6709\u75be\u98ce\u6765\uff0c\u4eba\u751f\u4e0d\u8a00\u5f03\u201d\uff0c\u8fd9\u53e5\u8bdd\u9001\u7ed9\u6b63\u5728\u5b66\u4e60\u7684\u670b\u53cb\u4eec\uff0c\u4e5f\u5e0c\u671b\u5728\u9605\u8bfb\u672c\u6587\u540e\uff0c\u80fd\u591f\u771f\u7684\u5e2e\u52a9\u5230\u5927\u5bb6\u3002\u6211\u4e5f\u4f1a\u5728\u540e\u7eed\u7684\u6587\u7ae0\u4e2d\uff0c\u9646\u7eed\u66f4\u65b0\u76f8\u5173\u7684\u6280\u672f\u6587\u7ae0\uff0c\u6709\u597d\u7684\u5efa\u8bae\u6b22\u8fce\u5927\u5bb6\u5728\u8bc4\u8bba\u7559\u8a00\uff0c\u975e\u5e38\u611f\u8c22\uff01<\/p>\n

MySQL\u7d22\u5f15\u5e95\u5c42\u539f\u7406\u89e3\u6790<\/p>\n

\u5f15\u8a00\uff1a
MySQL\u4f5c\u4e3a\u4e00\u6b3e\u5e38\u7528\u7684\u5173\u7cfb\u578b\u6570\u636e\u5e93\u7ba1\u7406\u7cfb\u7edf\uff0c\u5728\u6570\u636e\u5b58\u53d6\u6548\u7387\u65b9\u9762\u4e00\u76f4\u4ee5\u6765\u90fd\u5907\u53d7\u5173\u6ce8\u3002\u800c\u7d22\u5f15\u4f5c\u4e3a\u63d0\u9ad8\u6570\u636e\u5e93\u67e5\u8be2\u6027\u80fd\u7684\u4e00\u79cd\u91cd\u8981\u624b\u6bb5\uff0c\u5176\u5e95\u5c42\u539f\u7406\u7684\u4e86\u89e3\u5bf9\u4e8e\u6570\u636e\u5e93\u5f00\u53d1\u4eba\u5458\u6765\u8bf4\u81f3\u5173\u91cd\u8981\u3002\u672c\u6587\u5c06\u901a\u8fc7\u8be6\u7ec6\u89e3\u6790MySQL\u7d22\u5f15\u7684\u5e95\u5c42\u539f\u7406\uff0c\u5e76\u63d0\u4f9b\u5177\u4f53\u7684\u4ee3\u7801\u793a\u4f8b\uff0c\u4ee5\u5e2e\u52a9\u8bfb\u8005\u66f4\u597d\u5730\u7406\u89e3\u4e0e\u5e94\u7528\u3002<\/p>\n

I. \u7d22\u5f15\u7684\u6982\u5ff5
\u7d22\u5f15\u662f\u6570\u636e\u5e93\u4e2d\u7528\u4e8e\u5feb\u901f\u67e5\u8be2\u4e0e\u68c0\u7d22\u6570\u636e\u7684\u4e00\u79cd\u6570\u636e\u7ed3\u6784\u3002\u5b83\u5728\u6570\u636e\u5e93\u8868\u7684\u67d0\u4e00\u5217\u6216\u591a\u5217\u4e0a\u5efa\u7acb\uff0c\u901a\u8fc7\u5bf9\u8fd9\u4e9b\u5217\u8fdb\u884c\u6392\u5e8f\u548c\u5206\u7ec4\uff0c\u52a0\u5feb\u67e5\u8be2\u8fc7\u7a0b\u4e2d\u6570\u636e\u7684\u67e5\u627e\u6548\u7387\u3002<\/p>\n

II. MySQL\u7d22\u5f15\u7684\u7c7b\u578b<\/p>\n

    \n
  1. B-Tree\u7d22\u5f15
    B-Tree\u7d22\u5f15\u662fMySQL\u4e2d\u6700\u5e38\u7528\u7684\u7d22\u5f15\u7c7b\u578b\u3002\u5b83\u662f\u4e00\u79cd\u5e73\u8861\u6811\u7ed3\u6784\uff0c\u5177\u6709\u552f\u4e00\u6027\u548c\u6709\u5e8f\u6027\u3002B-Tree\u7d22\u5f15\u7684\u5e95\u5c42\u5b9e\u73b0\u65b9\u5f0f\u662f\u5c06\u6570\u636e\u6309\u7167\u7d22\u5f15\u5217\u7684\u503c\u8fdb\u884c\u6392\u5e8f\u5e76\u4fdd\u5b58\u5728\u6811\u8282\u70b9\u4e2d\u3002\u5176\u4e2d\uff0c\u53f6\u5b50\u8282\u70b9\u5b58\u50a8\u4e86\u7d22\u5f15\u7684\u503c\uff0c\u800c\u975e\u53f6\u5b50\u8282\u70b9\u5b58\u50a8\u4e86\u6307\u5411\u4e0b\u4e00\u5c42\u8282\u70b9\u7684\u6307\u9488\u6216\u5757\u7684\u5730\u5740\u3002<\/li>\n
  2. Hash\u7d22\u5f15
    Hash\u7d22\u5f15\u662f\u901a\u8fc7\u5c06\u7d22\u5f15\u5217\u7684\u503c\u901a\u8fc7\u54c8\u5e0c\u51fd\u6570\u8ba1\u7b97\u5f97\u5230\u4e00\u4e2a\u552f\u4e00\u7684\u54c8\u5e0c\u503c\uff0c\u7136\u540e\u5c06\u8be5\u54c8\u5e0c\u503c\u4e0e\u5b58\u50a8\u8be5\u503c\u5bf9\u5e94\u6570\u636e\u7684\u7269\u7406\u5730\u5740\u8fdb\u884c\u5173\u8054\u3002\u901a\u8fc7\u54c8\u5e0c\u5173\u8054\uff0c\u53ef\u4ee5\u76f4\u63a5\u627e\u5230\u6240\u9700\u6570\u636e\u7684\u7269\u7406\u5730\u5740\uff0c\u4ece\u800c\u5b9e\u73b0\u5feb\u901f\u7684\u6570\u636e\u67e5\u8be2\u3002<\/li>\n
  3. Full-text\u7d22\u5f15
    Full-text\u7d22\u5f15\u9002\u7528\u4e8e\u5bf9\u6587\u672c\u5185\u5bb9\u8fdb\u884c\u5168\u6587\u641c\u7d22\u7684\u573a\u666f\u3002\u5b83\u901a\u8fc7\u5bf9\u6587\u672c\u8fdb\u884c\u5206\u8bcd\uff0c\u5e76\u751f\u6210\u5173\u952e\u8bcd-\u6587\u6863\u7684\u6620\u5c04\uff0c\u5b9e\u73b0\u5feb\u901f\u7684\u5168\u6587\u641c\u7d22\u3002<\/li>\n<\/ol>\n

    III. B-Tree\u7d22\u5f15\u7684\u5e95\u5c42\u539f\u7406\u53ca\u4ee3\u7801\u793a\u4f8b
    B-Tree\u7d22\u5f15\u7684\u5e95\u5c42\u5b9e\u73b0\u65b9\u5f0f\u662f\u5c06\u6570\u636e\u6309\u7167\u7d22\u5f15\u5217\u7684\u503c\u8fdb\u884c\u6392\u5e8f\uff0c\u5e76\u4f7f\u7528\u5e73\u8861\u6811\u8fdb\u884c\u7ec4\u7ec7\u4e0e\u5b58\u50a8\u3002\u4e0b\u9762\u662f\u4e00\u4e2a\u7b80\u5355\u7684\u4ee3\u7801\u793a\u4f8b\uff0c\u6f14\u793a\u5982\u4f55\u5728MySQL\u4e2d\u521b\u5efa\u4e00\u68f5B-Tree\u7d22\u5f15\u3002<\/p>\n

    -- \u5efa\u8868\u8bed\u53e5\nCREATE TABLE student (\n    id INT PRIMARY KEY,\n    name VARCHAR(50),\n    age INT\n) ENGINE = InnoDB;\n\n-- \u521b\u5efaB-Tree\u7d22\u5f15\nCREATE INDEX idx_student_name ON student (name);\n\n-- \u67e5\u8be2\u8bed\u53e5\nSELECT * FROM student WHERE name = 'Tom';<\/pre>\n
    \u5728\u4ee3\u7801\u793a\u4f8b\u4e2d\uff0c\u9996\u5148\u4f7f\u7528CREATE TABLE\u8bed\u53e5\u521b\u5efa\u4e86\u4e00\u4e2a\u540d\u4e3astudent\u7684\u8868\uff0c\u5176\u4e2d\u5305\u542b\u4e86id\u3001name\u548cage\u4e09\u4e2a\u5217\u3002\u63a5\u7740\u4f7f\u7528CREATE INDEX\u8bed\u53e5\u5728name\u5217\u4e0a\u521b\u5efa\u4e86\u4e00\u4e2a\u540d\u4e3aidx_student_name\u7684B-Tree\u7d22\u5f15\u3002\u6700\u540e\uff0c\u901a\u8fc7SELECT\u8bed\u53e5\u67e5\u8be2\u4e86name\u4e3a’Tom’\u7684\u5b66\u751f\u4fe1\u606f\u3002<\/p>\n
    IV. \u7d22\u5f15\u7684\u4f18\u5316\u4e0e\u6ce8\u610f\u4e8b\u9879<\/p>\n
      \n
    1. \u7d22\u5f15\u7684\u4f18\u5316
      \u4e3a\u4e86\u63d0\u9ad8\u7d22\u5f15\u7684\u6548\u7387\u4e0e\u6027\u80fd\uff0c\u6211\u4eec\u53ef\u4ee5\u91c7\u53d6\u4ee5\u4e0b\u4f18\u5316\u7b56\u7565\uff1a<\/li>\n
    2. \u9009\u62e9\u6b63\u786e\u7684\u7d22\u5f15\u7c7b\u578b\uff1a\u6839\u636e\u5b9e\u9645\u9700\u6c42\u9009\u62e9B-Tree\u7d22\u5f15\u3001Hash\u7d22\u5f15\u6216Full-text\u7d22\u5f15\u7b49\u3002<\/li>\n
    3. \u8003\u8651\u7d22\u5f15\u5217\u7684\u9009\u62e9\uff1a\u9009\u62e9\u5177\u6709\u9ad8\u9009\u62e9\u6027\u7684\u5217\u4f5c\u4e3a\u7d22\u5f15\u5217\uff0c\u4ee5\u4fdd\u8bc1\u7d22\u5f15\u7684\u6548\u7387\u3002<\/li>\n
    4. \u907f\u514d\u521b\u5efa\u8fc7\u591a\u7684\u7d22\u5f15\uff1a\u8fc7\u591a\u7684\u7d22\u5f15\u4e0d\u4ec5\u589e\u52a0\u4e86\u6570\u636e\u7684\u5b58\u50a8\u7a7a\u95f4\uff0c\u8fd8\u4f1a\u589e\u52a0\u5199\u64cd\u4f5c\u7684\u590d\u6742\u6027\u3002<\/li>\n
    5. \u5b9a\u671f\u7ef4\u62a4\u548c\u4f18\u5316\u7d22\u5f15\uff1a\u5b9a\u671f\u8fdb\u884c\u7d22\u5f15\u91cd\u5efa\u548c\u788e\u7247\u6574\u7406\uff0c\u4ee5\u4fdd\u8bc1\u7d22\u5f15\u7684\u6548\u7387\u3002<\/li>\n
    6. \u7d22\u5f15\u7684\u6ce8\u610f\u4e8b\u9879
      \u5728\u4f7f\u7528\u7d22\u5f15\u7684\u8fc7\u7a0b\u4e2d\uff0c\u9700\u8981\u6ce8\u610f\u4ee5\u4e0b\u4e8b\u9879\uff1a<\/li>\n
    7. \u7d22\u5f15\u4f1a\u5360\u7528\u5b58\u50a8\u7a7a\u95f4\uff1a\u521b\u5efa\u7d22\u5f15\u4f1a\u589e\u52a0\u6570\u636e\u8868\u5360\u7528\u7684\u5b58\u50a8\u7a7a\u95f4\uff0c\u7279\u522b\u662f\u5728\u5927\u8868\u7684\u60c5\u51b5\u4e0b\uff0c\u9700\u8981\u614e\u91cd\u8003\u8651\u3002<\/li>\n
    8. \u7d22\u5f15\u7684\u7ef4\u62a4\u9700\u8981\u65f6\u95f4\u548c\u8d44\u6e90\uff1a\u7d22\u5f15\u4f1a\u5360\u7528\u4e00\u5b9a\u7684\u7cfb\u7edf\u8d44\u6e90\uff0c\u5e76\u4e14\u5728\u6570\u636e\u63d2\u5165\u3001\u66f4\u65b0\u548c\u5220\u9664\u65f6\u9700\u8981\u7ef4\u62a4\u7d22\u5f15\uff0c\u4f1a\u589e\u52a0\u7cfb\u7edf\u7684\u8d1f\u62c5\u3002<\/li>\n
    9. \u66f4\u65b0\u64cd\u4f5c\u5bf9\u7d22\u5f15\u7684\u5f71\u54cd\uff1a\u66f4\u65b0\u64cd\u4f5c\u53ef\u80fd\u4f1a\u5bfc\u81f4\u7d22\u5f15\u7684\u5931\u6548\uff0c\u56e0\u6b64\u5728\u8fdb\u884c\u5927\u91cf\u6570\u636e\u66f4\u65b0\u7684\u65f6\u5019\u9700\u8981\u614e\u91cd\u4f7f\u7528\u7d22\u5f15\u3002<\/li>\n<\/ol>\n
      \u7ed3\u8bba\uff1a
      \u901a\u8fc7\u672c\u6587\u7684\u4ecb\u7ecd\uff0c\u6211\u4eec\u4e86\u89e3\u4e86MySQL\u7d22\u5f15\u7684\u5e95\u5c42\u539f\u7406\uff0c\u4ee5\u53ca\u5982\u4f55\u5728MySQL\u4e2d\u4f7f\u7528B-Tree\u7d22\u5f15\u3002\u540c\u65f6\uff0c\u6211\u4eec\u4e5f\u4e86\u89e3\u4e86\u7d22\u5f15\u7684\u4f18\u5316\u7b56\u7565\u548c\u4f7f\u7528\u7d22\u5f15\u65f6\u9700\u8981\u6ce8\u610f\u7684\u4e8b\u9879\u3002\u901a\u8fc7\u5408\u7406\u4f7f\u7528\u7d22\u5f15\uff0c\u6211\u4eec\u53ef\u4ee5\u63d0\u9ad8\u6570\u636e\u5e93\u7684\u67e5\u8be2\u6027\u80fd\uff0c\u63d0\u5347\u7cfb\u7edf\u7684\u6574\u4f53\u6548\u7387\u3002\u6700\u540e\uff0c\u6211\u4eec\u9700\u8981\u6839\u636e\u5177\u4f53\u7684\u9700\u6c42\u548c\u573a\u666f\uff0c\u9009\u62e9\u9002\u5f53\u7684\u7d22\u5f15\u7c7b\u578b\uff0c\u5e76\u8fdb\u884c\u7d22\u5f15\u7684\u4f18\u5316\u4e0e\u7ef4\u62a4\u3002<\/p>\n
      \u4eca\u5929\u5173\u4e8e\u300aMySQL\u7d22\u5f15\u7684\u5e95\u5c42\u5de5\u4f5c\u539f\u7406\u300b\u7684\u5185\u5bb9\u5c31\u4ecb\u7ecd\u5230\u8fd9\u91cc\u4e86\uff0c\u662f\u4e0d\u662f\u5b66\u8d77\u6765\u4e00\u76ee\u4e86\u7136\uff01\u60f3\u8981\u4e86\u89e3\u66f4\u591a\u5173\u4e8e\u5e95\u5c42\u539f\u7406,MySQL\u7d22\u5f15,\u7d22\u5f15\u539f\u7406\u7684\u5185\u5bb9\u8bf7\u5173\u6ce8\u4e3b\u673a\u5b9d\u8d1d\u516c\u4f17\u53f7\uff01<\/p>\n
      \n
      \n <\/dt>\n<\/dl>\n","protected":false},"excerpt":{"rendered":"
      MySQL\u7d22\u5f15\u7684\u5e95\u5c42\u5de5\u4f5c\u539f\u7406 \u201c...<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[101],"tags":[],"class_list":["post-199681","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/199681","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"}],"author":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/comments?post=199681"}],"version-history":[{"count":0,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/199681\/revisions"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=199681"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=199681"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=199681"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}