{"id":200078,"date":"2025-05-06T08:33:28","date_gmt":"2025-05-06T00:33:28","guid":{"rendered":"https:\/\/server.hk\/cnblog\/200078\/"},"modified":"2025-05-06T08:33:28","modified_gmt":"2025-05-06T00:33:28","slug":"%e5%8c%ba%e5%88%86mysql%e4%b8%ad%e8%a7%86%e5%9b%be%e5%92%8c%e8%a1%a8%e7%9a%84%e7%89%b9%e7%82%b9%e5%92%8c%e7%94%a8%e6%b3%95","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/200078\/","title":{"rendered":"\u533a\u5206MySQL\u4e2d\u89c6\u56fe\u548c\u8868\u7684\u7279\u70b9\u548c\u7528\u6cd5"},"content":{"rendered":"

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

\u533a\u5206MySQL\u4e2d\u89c6\u56fe\u548c\u8868\u7684\u7279\u70b9\u548c\u7528\u6cd5<\/h1>\n

MySQL\u4e2d\u89c6\u56fe\u548c\u8868\u662f\u4e24\u79cd\u91cd\u8981\u7684\u6570\u636e\u7ed3\u6784\uff0c\u5b83\u4eec\u5728\u6570\u636e\u5e93\u8bbe\u8ba1\u548c\u6570\u636e\u7ba1\u7406\u4e2d\u6709\u7740\u4e0d\u540c\u7684\u7279\u70b9\u548c\u5e94\u7528\u573a\u666f\u3002\u8868\u662f\u5b58\u50a8\u5b9e\u9645\u6570\u636e\u7684\u57fa\u672c\u7ed3\u6784\uff0c\u800c\u89c6\u56fe\u662f\u4e00\u79cd\u865a\u62df\u8868\uff0c\u5b83\u57fa\u4e8e\u539f\u8868\u7684\u67e5\u8be2\u7ed3\u679c\u751f\u6210\uff0c\u4e0d\u5b58\u50a8\u5b9e\u9645\u6570\u636e\u3002\u89c6\u56fe\u53ef\u4ee5\u7b80\u5316\u590d\u6742\u7684\u6570\u636e\u64cd\u4f5c\uff0c\u63d0\u9ad8\u6570\u636e\u7684\u5b89\u5168\u6027\u548c\u53ef\u7ef4\u62a4\u6027\uff0c\u800c\u8868\u5219\u9002\u7528\u4e8e\u5b58\u50a8\u5927\u91cf\u6570\u636e\u548c\u8fdb\u884c\u590d\u6742\u7684\u6570\u636e\u64cd\u4f5c\u3002\u6839\u636e\u5177\u4f53\u9700\u6c42\u9009\u62e9\u4f7f\u7528\u8868\u8fd8\u662f\u89c6\u56fe\uff0c\u80fd\u591f\u66f4\u597d\u5730\u4f18\u5316\u6570\u636e\u5e93\u8bbe\u8ba1\u548c\u6570\u636e\u7ba1\u7406\u3002<\/p>\n

MySQL\u89c6\u56fe\u4e0e\u8868\u7684\u533a\u522b\u53ca\u5e94\u7528\u573a\u666f<\/p>\n

MySQL\u4e2d\u7684\u89c6\u56fe\uff08View\uff09\u662f\u4e00\u79cd\u865a\u62df\u8868\uff0c\u5b83\u662f\u57fa\u4e8e SQL \u67e5\u8be2\u7ed3\u679c\u96c6\u7684\u53ef\u89c6\u5316\u8868\u683c\uff0c\u53ef\u4ee5\u50cf\u8868\u4e00\u6837\u67e5\u8be2\u3001\u66f4\u65b0\u6216\u64cd\u4f5c\u3002\u89c6\u56fe\u5728\u6570\u636e\u5e93\u8bbe\u8ba1\u4e2d\u626e\u6f14\u7740\u91cd\u8981\u7684\u89d2\u8272\uff0c\u5b83\u80fd\u7b80\u5316\u590d\u6742\u7684\u6570\u636e\u64cd\u4f5c\uff0c\u63d0\u9ad8\u6570\u636e\u7684\u5b89\u5168\u6027\u548c\u53ef\u7ef4\u62a4\u6027\u3002\u5728\u5b9e\u9645\u5e94\u7528\u4e2d\uff0c\u89c6\u56fe\u4e0e\u8868\u6709\u7740\u5404\u81ea\u7684\u4f18\u52bf\u548c\u9002\u7528\u573a\u666f\u3002<\/p>\n

\u4e00\u3001MySQL\u89c6\u56fe\u4e0e\u8868\u7684\u533a\u522b<\/p>\n

    \n
  1. \u5b9a\u4e49\u65b9\u5f0f\uff1a<\/li>\n
  2. \u8868\uff08Table\uff09\u662f\u6570\u636e\u5e93\u4e2d\u7684\u57fa\u672c\u5b58\u50a8\u7ed3\u6784\uff0c\u4ee5\u884c\u548c\u5217\u7684\u5f62\u5f0f\u7ec4\u7ec7\u6570\u636e\u3002<\/li>\n
  3. \u89c6\u56fe\uff08View\uff09\u662f\u4e00\u79cd\u865a\u62df\u8868\uff0c\u662f\u57fa\u4e8e\u539f\u8868\u7684\u67e5\u8be2\u7ed3\u679c\u751f\u6210\u7684\uff0c\u4e0d\u5b58\u50a8\u5b9e\u9645\u6570\u636e\u3002<\/li>\n
  4. \u5b58\u50a8\u6570\u636e\uff1a<\/li>\n
  5. \u8868\u4e2d\u5b58\u50a8\u5b9e\u9645\u6570\u636e\uff0c\u53ef\u4ee5\u8fdb\u884c\u589e\u5220\u6539\u67e5\u7b49\u64cd\u4f5c\u3002<\/li>\n
  6. \u89c6\u56fe\u4e0d\u5b58\u50a8\u5b9e\u9645\u6570\u636e\uff0c\u53ea\u5b58\u50a8\u67e5\u8be2\u5b9a\u4e49\uff0c\u4e0d\u80fd\u76f4\u63a5\u5bf9\u89c6\u56fe\u8fdb\u884c\u4fee\u6539\u3002<\/li>\n
  7. \u6570\u636e\u66f4\u65b0\uff1a<\/li>\n
  8. \u53ef\u4ee5\u5bf9\u8868\u8fdb\u884c\u6570\u636e\u7684\u589e\u5220\u6539\u67e5\u64cd\u4f5c\u3002<\/li>\n
  9. \u5bf9\u89c6\u56fe\u8fdb\u884c\u6570\u636e\u66f4\u65b0\u65f6\uff0c\u5b9e\u9645\u4e0a\u662f\u5bf9\u57fa\u7840\u8868\uff08\u5373\u89c6\u56fe\u6240\u4f9d\u8d56\u7684\u8868\uff09\u8fdb\u884c\u7684\u64cd\u4f5c\u3002<\/li>\n
  10. \u6570\u636e\u5904\u7406\uff1a<\/li>\n
  11. \u8868\u53ef\u4ee5\u5305\u542b\u5927\u91cf\u6570\u636e\uff0c\u9002\u7528\u4e8e\u5b58\u50a8\u6570\u636e\uff0c\u652f\u6301\u590d\u6742\u7684\u6570\u636e\u64cd\u4f5c\u3002<\/li>\n
  12. \u89c6\u56fe\u53ef\u4ee5\u7b80\u5316\u6570\u636e\u64cd\u4f5c\uff0c\u63d0\u4f9b\u7279\u5b9a\u89c6\u56fe\u65b9\u4fbf\u7528\u6237\u67e5\u8be2\u548c\u7ba1\u7406\u6570\u636e\u3002<\/li>\n<\/ol>\n

    \u4e8c\u3001MySQL\u89c6\u56fe\u4e0e\u8868\u7684\u5e94\u7528\u573a\u666f\u53ca\u4ee3\u7801\u793a\u4f8b<\/p>\n

      \n
    1. \u5e94\u7528\u573a\u666f\uff1a<\/li>\n
    2. \u6570\u636e\u6743\u9650\u63a7\u5236\uff1a\u901a\u8fc7\u89c6\u56fe\u5b9e\u73b0\u5bf9\u7528\u6237\u7684\u6570\u636e\u8bbf\u95ee\u6743\u9650\u63a7\u5236\uff0c\u53ea\u663e\u793a\u7528\u6237\u6709\u6743\u9650\u67e5\u770b\u7684\u6570\u636e\u3002<\/li>\n
    3. \u7b80\u5316\u590d\u6742\u67e5\u8be2\uff1a\u521b\u5efa\u89c6\u56fe\u53ef\u4ee5\u5c06\u590d\u6742\u7684 SQL \u67e5\u8be2\u903b\u8f91\u5c01\u88c5\u8d77\u6765\uff0c\u65b9\u4fbf\u7528\u6237\u76f4\u63a5\u67e5\u8be2\u3002<\/li>\n
    4. \u6570\u636e\u6574\u5408\uff1a\u5c06\u591a\u4e2a\u8868\u7684\u6570\u636e\u6574\u5408\u5728\u4e00\u4e2a\u89c6\u56fe\u4e2d\uff0c\u65b9\u4fbf\u7528\u6237\u76f4\u89c2\u5730\u67e5\u770b\u6570\u636e\u3002<\/li>\n
    5. \n

      \u793a\u4f8b1\uff1a\u521b\u5efa\u89c6\u56fe
      \u5047\u8bbe\u6709\u4e24\u5f20\u8868students<\/code>\u548cscores<\/code>\uff0c\u5982\u4e0b\u6240\u793a\uff1a<\/p>\n

      CREATE TABLE students(\n id INT PRIMARY KEY,\n name VARCHAR(50),\n age INT\n);\n\nCREATE TABLE scores(\n student_id INT,\n subject VARCHAR(50),\n score INT\n);<\/pre>\n
      \u73b0\u5728\u6211\u4eec\u9700\u8981\u521b\u5efa\u4e00\u4e2a\u89c6\u56fe\uff0c\u5c55\u793a\u5b66\u751f\u7684\u59d3\u540d\u3001\u5e74\u9f84\u548c\u6210\u7ee9\u4fe1\u606f\uff1a<\/p>\n
      CREATE VIEW student_scores AS\nSELECT students.name, students.age, scores.subject, scores.score\nFROM students\nJOIN scores\nON students.id = scores.student_id;<\/pre>\n<\/li>\n
    6. \n
      \u793a\u4f8b2\uff1a\u67e5\u8be2\u89c6\u56fe\u6570\u636e
      \u6211\u4eec\u53ef\u4ee5\u901a\u8fc7\u4ee5\u4e0b SQL \u8bed\u53e5\u67e5\u8be2\u89c6\u56fe\u4e2d\u7684\u6570\u636e\uff1a<\/p>\n
      SELECT * FROM student_scores;<\/pre>\n<\/li>\n
    7. \n
      \u793a\u4f8b3\uff1a\u66f4\u65b0\u89c6\u56fe\u6570\u636e
      \u66f4\u65b0\u89c6\u56fe\u6570\u636e\u5b9e\u9645\u4e0a\u662f\u5bf9\u57fa\u7840\u8868\u8fdb\u884c\u64cd\u4f5c\uff0c\u4f8b\u5982\uff1a<\/p>\n
      UPDATE student_scores\nSET score = 90\nWHERE name = 'Alice' AND subject = 'Math';<\/pre>\n<\/li>\n<\/ol>\n
      \u603b\u7ed3\uff1a
      MySQL\u89c6\u56fe\u4e0e\u8868\u5728\u6570\u636e\u5e93\u4e2d\u5404\u6709\u5176\u4f5c\u7528\uff0c\u8868\u9002\u7528\u4e8e\u5b58\u50a8\u6570\u636e\uff0c\u800c\u89c6\u56fe\u5219\u66f4\u9002\u7528\u4e8e\u7b80\u5316\u590d\u6742\u7684\u6570\u636e\u64cd\u4f5c\uff0c\u63d0\u9ad8\u6570\u636e\u8bbf\u95ee\u6548\u7387\u3002\u5728\u5b9e\u9645\u5e94\u7528\u4e2d\uff0c\u6839\u636e\u5177\u4f53\u9700\u6c42\u6765\u9009\u62e9\u4f7f\u7528\u8868\u8fd8\u662f\u89c6\u56fe\uff0c\u80fd\u591f\u66f4\u597d\u5730\u4f18\u5316\u6570\u636e\u5e93\u8bbe\u8ba1\u548c\u6570\u636e\u7ba1\u7406\u3002<\/p>\n
      \u4ee5\u4e0a\u5c31\u662f\u300a\u533a\u5206MySQL\u4e2d\u89c6\u56fe\u548c\u8868\u7684\u7279\u70b9\u548c\u7528\u6cd5\u300b\u7684\u8be6\u7ec6\u5185\u5bb9\uff0c\u66f4\u591a\u5173\u4e8emysql,\u5e94\u7528,\u89c6\u56fe\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":"
      \u533a\u5206MySQL\u4e2d\u89c6\u56fe\u548c\u8868\u7684\u7279\u70b9\u548c...<\/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-200078","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/200078","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=200078"}],"version-history":[{"count":0,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/200078\/revisions"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=200078"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=200078"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=200078"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}