{"id":199671,"date":"2025-05-06T09:39:19","date_gmt":"2025-05-06T01:39:19","guid":{"rendered":"https:\/\/server.hk\/cnblog\/199671\/"},"modified":"2025-05-06T09:39:19","modified_gmt":"2025-05-06T01:39:19","slug":"mysql%e7%b4%a2%e5%bc%95%e5%b7%a6%e5%89%8d%e7%bc%80%e5%8e%9f%e5%88%99","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/199671\/","title":{"rendered":"MySQL\u7d22\u5f15\u5de6\u524d\u7f00\u539f\u5219"},"content":{"rendered":"

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

MySQL\u7d22\u5f15\u5de6\u524d\u7f00\u539f\u5219<\/h1>\n

\u600e\u4e48\u5165\u95e8\u6570\u636e\u5e93\u7f16\u7a0b\uff1f\u9700\u8981\u5b66\u4e60\u54ea\u4e9b\u77e5\u8bc6\u70b9\uff1f\u8fd9\u662f\u65b0\u624b\u4eec\u521a\u63a5\u89e6\u7f16\u7a0b\u65f6\u5e38\u89c1\u7684\u95ee\u9898\uff1b\u4e0b\u9762\u4e3b\u673a\u5b9d\u8d1d\u5c31\u6765\u7ed9\u5927\u5bb6\u6574\u7406\u5206\u4eab\u4e00\u4e9b\u77e5\u8bc6\u70b9\uff0c\u5e0c\u671b\u80fd\u591f\u7ed9\u521d\u5b66\u8005\u4e00\u4e9b\u5e2e\u52a9\u3002\u672c\u7bc7\u6587\u7ae0\u5c31\u6765\u4ecb\u7ecd\u300aMySQL\u7d22\u5f15\u5de6\u524d\u7f00\u539f\u5219\u300b\uff0c\u6d89\u53ca\u5230\uff0c\u6709\u9700\u8981\u7684\u53ef\u4ee5\u6536\u85cf\u4e00\u4e0b<\/p>\n

MySQL\u7d22\u5f15\u6700\u5de6\u539f\u5219\u539f\u7406\u53ca\u4ee3\u7801\u793a\u4f8b<\/p>\n

\u5728MySQL\u4e2d\uff0c\u7d22\u5f15\u662f\u63d0\u9ad8\u67e5\u8be2\u6548\u7387\u7684\u91cd\u8981\u624b\u6bb5\u4e4b\u4e00\u3002\u5176\u4e2d\uff0c\u7d22\u5f15\u6700\u5de6\u539f\u5219\u662f\u6211\u4eec\u5728\u4f7f\u7528\u7d22\u5f15\u4f18\u5316\u67e5\u8be2\u7684\u8fc7\u7a0b\u4e2d\u9700\u8981\u9075\u5faa\u7684\u4e00\u4e2a\u91cd\u8981\u539f\u5219\u3002\u672c\u6587\u5c06\u56f4\u7ed5MySQL\u7d22\u5f15\u6700\u5de6\u539f\u5219\u7684\u539f\u7406\u8fdb\u884c\u4ecb\u7ecd\uff0c\u5e76\u7ed9\u51fa\u4e00\u4e9b\u5177\u4f53\u7684\u4ee3\u7801\u793a\u4f8b\u3002<\/p>\n

\u4e00\u3001\u7d22\u5f15\u6700\u5de6\u539f\u5219\u7684\u539f\u7406<\/p>\n

\u7d22\u5f15\u6700\u5de6\u539f\u5219\u662f\u6307\u5728\u4e00\u4e2a\u7d22\u5f15\u4e2d\uff0c\u5982\u679c\u67e5\u8be2\u6761\u4ef6\u662f\u7531\u591a\u4e2a\u5217\u7ec4\u6210\u7684\uff0c\u90a3\u4e48\u53ea\u6709\u6309\u7167\u7d22\u5f15\u4e2d\u7684\u6700\u5de6\u4fa7\u5217\u8fdb\u884c\u67e5\u8be2\uff0c\u624d\u80fd\u5145\u5206\u5229\u7528\u5230\u7d22\u5f15\u3002\u5177\u4f53\u6765\u8bf4\uff0c\u5c31\u662f\u5728\u67e5\u8be2\u65f6\uff0c\u53ea\u6709\u6309\u7167\u7d22\u5f15\u4e2d\u7684\u6700\u5de6\u5217\u8fdb\u884c\u5339\u914d\uff0c\u624d\u80fd\u4f7f\u7528\u5230\u7d22\u5f15\u4e2d\u7684\u6709\u5e8f\u6027\uff0c\u5982\u679c\u4f7f\u7528\u7d22\u5f15\u4e2d\u7684\u975e\u6700\u5de6\u5217\u8fdb\u884c\u67e5\u8be2\uff0c\u90a3\u4e48\u65e0\u6cd5\u5229\u7528\u7d22\u5f15\u7684\u6709\u5e8f\u6027\uff0c\u67e5\u8be2\u7684\u6548\u7387\u4f1a\u53d7\u5230\u5f71\u54cd\u3002<\/p>\n

\u4e8c\u3001\u7d22\u5f15\u6700\u5de6\u539f\u5219\u7684\u793a\u4f8b<\/p>\n

\u4e3a\u4e86\u66f4\u597d\u5730\u7406\u89e3\u7d22\u5f15\u6700\u5de6\u539f\u5219\uff0c\u6211\u4eec\u505a\u4e00\u4e2a\u793a\u4f8b\u3002\u5047\u8bbe\u6709\u4ee5\u4e0b\u4e00\u5f20\u8868student\uff1a<\/p>\n

+----+-------+--------+----------+\n| id | name  | gender | birthday |\n+----+-------+--------+----------+\n|  1 | John  | Male   | 2001-02-01 |\n|  2 | Mary  | Female | 2002-03-02 |\n|  3 | Tom   | Male   | 2003-04-03 |\n|  4 | Alice | Female | 2004-05-04 |\n+----+-------+--------+----------+<\/pre>\n
\u521b\u5efa\u4e00\u4e2a\u7d22\u5f15\uff1a<\/p>\n
CREATE INDEX idx_student ON student(name, gender, birthday);<\/pre>\n
\u6839\u636e\u7d22\u5f15\u6700\u5de6\u539f\u5219\uff0c\u6211\u4eec\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u65b9\u5f0f\u8fdb\u884c\u67e5\u8be2\uff1a<\/p>\n
    \n
  1. \u4f7f\u7528\u7d22\u5f15\u4e2d\u7684\u6700\u5de6\u5217\u8fdb\u884c\u67e5\u8be2\uff1a<\/li>\n<\/ol>\n
    SELECT * FROM student WHERE name = 'John';<\/pre>\n
    \u8fd9\u4e2a\u67e5\u8be2\u80fd\u591f\u5145\u5206\u5229\u7528\u5230\u7d22\u5f15\uff0c\u5e76\u4e14\u67e5\u8be2\u6548\u7387\u4f1a\u6bd4\u8f83\u9ad8\u3002<\/p>\n
      \n
    1. \u4f7f\u7528\u7d22\u5f15\u4e2d\u7684\u6700\u5de6\u4e24\u5217\u8fdb\u884c\u67e5\u8be2\uff1a<\/li>\n<\/ol>\n
      SELECT * FROM student WHERE name = 'John' AND gender = 'Male';<\/pre>\n
      \u8fd9\u4e2a\u67e5\u8be2\u4e5f\u80fd\u591f\u5145\u5206\u5229\u7528\u5230\u7d22\u5f15\uff0c\u56e0\u4e3a\u67e5\u8be2\u6761\u4ef6\u4e2d\u7684\u5217\u987a\u5e8f\u548c\u7d22\u5f15\u4e2d\u7684\u5217\u987a\u5e8f\u4e00\u81f4\u3002<\/p>\n
        \n
      1. \u4f7f\u7528\u7d22\u5f15\u4e2d\u7684\u6700\u5de6\u4e09\u5217\u8fdb\u884c\u67e5\u8be2\uff1a<\/li>\n<\/ol>\n
        SELECT * FROM student WHERE name = 'John' AND gender = 'Male' AND birthday = '2001-02-01';<\/pre>\n
        \u8fd9\u4e2a\u67e5\u8be2\u540c\u6837\u80fd\u591f\u5145\u5206\u5229\u7528\u5230\u7d22\u5f15\uff0c\u7b26\u5408\u7d22\u5f15\u6700\u5de6\u539f\u5219\u3002<\/p>\n
        \u4f46\u662f\uff0c\u5982\u679c\u6211\u4eec\u4f7f\u7528\u4e0d\u7b26\u5408\u7d22\u5f15\u6700\u5de6\u539f\u5219\u7684\u67e5\u8be2\u65b9\u5f0f\uff0c\u6bd4\u5982\uff1a<\/p>\n
        SELECT * FROM student WHERE gender = 'Male';<\/pre>\n
        \u8fd9\u4e2a\u67e5\u8be2\u65e0\u6cd5\u5145\u5206\u5229\u7528\u5230\u7d22\u5f15\uff0c\u56e0\u4e3a\u67e5\u8be2\u6761\u4ef6\u4e2d\u7684\u5217\u5e76\u4e0d\u662f\u6309\u7167\u7d22\u5f15\u4e2d\u7684\u6700\u5de6\u4fa7\u5217\u8fdb\u884c\u67e5\u8be2\uff0c\u4f1a\u5bfc\u81f4\u67e5\u8be2\u6548\u7387\u964d\u4f4e\u3002<\/p>\n
        \u4e09\u3001\u603b\u7ed3<\/p>\n
        \u7d22\u5f15\u6700\u5de6\u539f\u5219\u662f\u6211\u4eec\u5728\u4f7f\u7528MySQL\u7d22\u5f15\u4f18\u5316\u67e5\u8be2\u7684\u8fc7\u7a0b\u4e2d\u9700\u8981\u9075\u5faa\u7684\u4e00\u4e2a\u539f\u5219\u3002\u901a\u8fc7\u6309\u7167\u7d22\u5f15\u4e2d\u6700\u5de6\u4fa7\u5217\u7684\u987a\u5e8f\u8fdb\u884c\u67e5\u8be2\uff0c\u6211\u4eec\u53ef\u4ee5\u5145\u5206\u5229\u7528\u5230\u7d22\u5f15\u7684\u6709\u5e8f\u6027\uff0c\u63d0\u9ad8\u67e5\u8be2\u6548\u7387\u3002\u5982\u679c\u4f7f\u7528\u4e0d\u7b26\u5408\u7d22\u5f15\u6700\u5de6\u539f\u5219\u7684\u67e5\u8be2\u65b9\u5f0f\uff0c\u4f1a\u5bfc\u81f4\u67e5\u8be2\u6548\u7387\u964d\u4f4e\u3002\u56e0\u6b64\uff0c\u5728\u8fdb\u884c\u6570\u636e\u5e93\u8bbe\u8ba1\u65f6\uff0c\u9700\u8981\u6839\u636e\u5177\u4f53\u7684\u67e5\u8be2\u9700\u6c42\u521b\u5efa\u5408\u9002\u7684\u7d22\u5f15\uff0c\u5e76\u4e14\u5728\u7f16\u5199\u67e5\u8be2\u8bed\u53e5\u65f6\u6309\u7167\u7d22\u5f15\u6700\u5de6\u539f\u5219\u8fdb\u884c\u67e5\u8be2\uff0c\u4ece\u800c\u63d0\u9ad8\u67e5\u8be2\u6548\u7387\u3002<\/p>\n
        \u4ee5\u4e0a\u5c31\u662f\u5173\u4e8eMySQL\u7d22\u5f15\u6700\u5de6\u539f\u5219\u539f\u7406\u53ca\u4ee3\u7801\u793a\u4f8b\u7684\u4ecb\u7ecd\uff0c\u5e0c\u671b\u5bf9\u5927\u5bb6\u6709\u6240\u5e2e\u52a9\u3002<\/p>\n
        \u4ee5\u4e0a\u5c31\u662f\u300aMySQL\u7d22\u5f15\u5de6\u524d\u7f00\u539f\u5219\u300b\u7684\u8be6\u7ec6\u5185\u5bb9\uff0c\u66f4\u591a\u5173\u4e8e\u539f\u7406,MySQL\u7d22\u5f15,\u6700\u5de6\u539f\u5219\u7684\u8d44\u6599\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\u5de6\u524d\u7f00\u539f\u5219 \u600e\u4e48\u5165...<\/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-199671","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/199671","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=199671"}],"version-history":[{"count":0,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/199671\/revisions"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=199671"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=199671"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=199671"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}