{"id":199617,"date":"2025-05-06T09:34:37","date_gmt":"2025-05-06T01:34:37","guid":{"rendered":"https:\/\/server.hk\/cnblog\/199617\/"},"modified":"2025-05-06T09:34:37","modified_gmt":"2025-05-06T01:34:37","slug":"%e5%a6%82%e4%bd%95%e7%bc%96%e5%86%99%e9%ab%98%e6%95%88%e7%9a%84sql%e8%af%ad%e5%8f%a5%e6%9d%a5%e6%93%8d%e4%bd%9cmysql%e6%95%b0%e6%8d%ae%e5%ba%93%ef%bc%9f","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/199617\/","title":{"rendered":"\u5982\u4f55\u7f16\u5199\u9ad8\u6548\u7684SQL\u8bed\u53e5\u6765\u64cd\u4f5cMySQL\u6570\u636e\u5e93\uff1f"},"content":{"rendered":"

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

\u5982\u4f55\u7f16\u5199\u9ad8\u6548\u7684SQL\u8bed\u53e5\u6765\u64cd\u4f5cMySQL\u6570\u636e\u5e93\uff1f<\/h1>\n

\u5728IT\u884c\u4e1a\u8fd9\u4e2a\u53d1\u5c55\u66f4\u65b0\u901f\u5ea6\u5f88\u5feb\u7684\u884c\u4e1a\uff0c\u53ea\u6709\u4e0d\u505c\u6b62\u7684\u5b66\u4e60\uff0c\u624d\u4e0d\u4f1a\u88ab\u884c\u4e1a\u6240\u6dd8\u6c70\u3002\u5982\u679c\u4f60\u662f\u6570\u636e\u5e93\u5b66\u4e60\u8005\uff0c\u90a3\u4e48\u672c\u6587\u300a\u5982\u4f55\u7f16\u5199\u9ad8\u6548\u7684SQL\u8bed\u53e5\u6765\u64cd\u4f5cMySQL\u6570\u636e\u5e93\uff1f\u300b\u5c31\u5f88\u9002\u5408\u4f60\uff01\u672c\u7bc7\u5185\u5bb9\u4e3b\u8981\u5305\u62ec##content_title##\uff0c\u5e0c\u671b\u5bf9\u5927\u5bb6\u7684\u77e5\u8bc6\u79ef\u7d2f\u6709\u6240\u5e2e\u52a9\uff0c\u52a9\u529b\u5b9e\u6218\u5f00\u53d1\uff01<\/p>\n

\u5982\u4f55\u7f16\u5199\u9ad8\u6548\u7684SQL\u8bed\u53e5\u6765\u64cd\u4f5cMySQL\u6570\u636e\u5e93\uff1f<\/p>\n

MySQL\u662f\u6700\u5e38\u7528\u7684\u5173\u7cfb\u578b\u6570\u636e\u5e93\u4e4b\u4e00\uff0c\u5b83\u5177\u6709\u826f\u597d\u7684\u53ef\u6269\u5c55\u6027\u548c\u9ad8\u6027\u80fd\u7684\u7279\u70b9\u3002\u4e3a\u4e86\u5145\u5206\u5229\u7528MySQL\u7684\u6027\u80fd\u4f18\u52bf\uff0c\u7f16\u5199\u9ad8\u6548\u7684SQL\u8bed\u53e5\u662f\u975e\u5e38\u91cd\u8981\u7684\u3002\u4e0b\u9762\u5c06\u4ecb\u7ecd\u4e00\u4e9b\u7f16\u5199\u9ad8\u6548SQL\u8bed\u53e5\u7684\u6280\u5de7\uff0c\u5e76\u63d0\u4f9b\u5177\u4f53\u7684\u4ee3\u7801\u793a\u4f8b\u3002<\/p>\n

    \n
  1. \u9009\u62e9\u6b63\u786e\u7684\u6570\u636e\u7c7b\u578b\u548c\u7d22\u5f15
    \u9009\u62e9\u5408\u9002\u7684\u6570\u636e\u7c7b\u578b\u53ef\u4ee5\u51cf\u5c11\u6570\u636e\u5360\u7528\u7684\u5b58\u50a8\u7a7a\u95f4\uff0c\u5e76\u63d0\u9ad8\u67e5\u8be2\u901f\u5ea6\u3002\u4f8b\u5982\uff0c\u4f7f\u7528\u6574\u578b\u4ee3\u66ff\u5b57\u7b26\u578b\u53ef\u4ee5\u8282\u7ea6\u5b58\u50a8\u7a7a\u95f4\u5e76\u52a0\u5feb\u7d22\u5f15\u7684\u521b\u5efa\u548c\u67e5\u8be2\u3002\u6b64\u5916\uff0c\u4f7f\u7528\u9002\u5f53\u7684\u7d22\u5f15\uff08\u5982\u4e3b\u952e\u7d22\u5f15\u548c\u552f\u4e00\u7d22\u5f15\uff09\u53ef\u4ee5\u63d0\u9ad8\u67e5\u8be2\u6548\u7387\u3002\u4e0b\u9762\u662f\u4e00\u4e2a\u521b\u5efa\u7d22\u5f15\u7684\u793a\u4f8b\u4ee3\u7801\uff1a<\/li>\n<\/ol>\n
    ALTER TABLE table_name ADD INDEX index_name (column_name);<\/pre>\n
      \n
    1. \u51cf\u5c11\u6570\u636e\u8bbf\u95ee\u6b21\u6570
      \u51cf\u5c11\u8bbf\u95ee\u6570\u636e\u5e93\u7684\u6b21\u6570\u53ef\u4ee5\u63d0\u9ad8\u6027\u80fd\u3002\u5c3d\u91cf\u907f\u514d\u4f7f\u7528\u5faa\u73af\u8bed\u53e5\u6216\u6267\u884c\u591a\u4e2a\u67e5\u8be2\u6765\u83b7\u53d6\u76f8\u540c\u7684\u6570\u636e\u3002\u53ef\u4ee5\u4f7f\u7528\u8054\u63a5\uff08JOIN\uff09\u64cd\u4f5c\u6765\u4e00\u6b21\u6027\u83b7\u53d6\u6240\u9700\u7684\u6570\u636e\u3002\u4e0b\u9762\u662f\u4e00\u4e2a\u4f7f\u7528\u8054\u63a5\u64cd\u4f5c\u7684\u793a\u4f8b\u4ee3\u7801\uff1a<\/li>\n<\/ol>\n
      SELECT column_name1, column_name2\nFROM table_name1\nINNER JOIN table_name2 ON table_name1.column_name = table_name2.column_name;<\/pre>\n
        \n
      1. \u4f7f\u7528\u6279\u91cf\u64cd\u4f5c
        \u4f7f\u7528\u6279\u91cf\u64cd\u4f5c\u53ef\u4ee5\u51cf\u5c11\u4e0e\u6570\u636e\u5e93\u7684\u4ea4\u4e92\u6b21\u6570\uff0c\u63d0\u9ad8\u6548\u7387\u3002\u4f8b\u5982\uff0c\u53ef\u4ee5\u4f7f\u7528INSERT INTO\u8bed\u53e5\u7684\u6279\u91cf\u6a21\u5f0f\u5c06\u591a\u4e2a\u6570\u636e\u4e00\u6b21\u6027\u63d2\u5165\u5230\u6570\u636e\u5e93\u4e2d\u3002\u4e0b\u9762\u662f\u4e00\u4e2a\u6279\u91cf\u63d2\u5165\u6570\u636e\u7684\u793a\u4f8b\u4ee3\u7801\uff1a<\/li>\n<\/ol>\n
        INSERT INTO table_name (column_name1, column_name2)\nVALUES (value1, value2),\n       (value3, value4),\n       (value5, value6);<\/pre>\n
          \n
        1. \u4f7f\u7528\u4e8b\u52a1
          \u4f7f\u7528\u4e8b\u52a1\u53ef\u4ee5\u4fdd\u8bc1\u6570\u636e\u5e93\u64cd\u4f5c\u7684\u4e00\u81f4\u6027\u548c\u5b8c\u6574\u6027\u3002\u5c06\u4e00\u7cfb\u5217\u76f8\u5173\u7684\u64cd\u4f5c\u653e\u5728\u4e00\u4e2a\u4e8b\u52a1\u4e2d\uff0c\u5e76\u4f7f\u7528BEGIN\u3001COMMIT\u548cROLLBACK\u8bed\u53e5\u6765\u63a7\u5236\u4e8b\u52a1\u7684\u5f00\u59cb\u3001\u7ed3\u675f\u548c\u56de\u6eda\u3002\u4e0b\u9762\u662f\u4e00\u4e2a\u4f7f\u7528\u4e8b\u52a1\u7684\u793a\u4f8b\u4ee3\u7801\uff1a<\/li>\n<\/ol>\n
          BEGIN;\nUPDATE table_name SET column_name1 = value1 WHERE condition;\nUPDATE table_name SET column_name2 = value2 WHERE condition;\nCOMMIT;<\/pre>\n
            \n
          1. \u907f\u514d\u4f7f\u7528\u901a\u914d\u7b26\u67e5\u8be2
            \u901a\u914d\u7b26\u67e5\u8be2\uff08\u5982LIKE\u8bed\u53e5\uff09\u901a\u5e38\u6bd4\u8f83\u8017\u65f6\u3002\u5c3d\u91cf\u907f\u514d\u4f7f\u7528\u901a\u914d\u7b26\u67e5\u8be2\uff0c\u7279\u522b\u662f\u5728\u5927\u6570\u636e\u91cf\u60c5\u51b5\u4e0b\u3002\u5982\u679c\u5fc5\u987b\u4f7f\u7528\u901a\u914d\u7b26\u67e5\u8be2\uff0c\u53ef\u4ee5\u8003\u8651\u4f7f\u7528\u5168\u6587\u7d22\u5f15\uff08FULLTEXT INDEX\uff09\u6765\u63d0\u9ad8\u6027\u80fd\u3002<\/li>\n
          2. \u4f18\u5316\u67e5\u8be2\u8bed\u53e5
            \u4f7f\u7528\u4f18\u5316\u67e5\u8be2\u8bed\u53e5\u53ef\u4ee5\u51cf\u5c11\u6267\u884c\u65f6\u95f4\u3002\u53ef\u4ee5\u4f7f\u7528EXPLAIN\u8bed\u53e5\u6765\u68c0\u67e5\u67e5\u8be2\u8bed\u53e5\u7684\u6267\u884c\u8ba1\u5212\uff0c\u5e76\u5bf9\u67e5\u8be2\u8bed\u53e5\u8fdb\u884c\u4f18\u5316\u3002\u4e0b\u9762\u662f\u4e00\u4e2a\u4f7f\u7528EXPLAIN\u8bed\u53e5\u7684\u793a\u4f8b\u4ee3\u7801\uff1a<\/li>\n<\/ol>\n
            EXPLAIN SELECT column_name1, column_name2\nFROM table_name\nWHERE condition;<\/pre>\n
            \u901a\u8fc7\u4ee5\u4e0a\u7684\u6280\u5de7\uff0c\u6211\u4eec\u53ef\u4ee5\u5145\u5206\u53d1\u6325MySQL\u7684\u6027\u80fd\u4f18\u52bf\u3002\u5f53\u7136\uff0c\u5177\u4f53\u7684SQL\u8bed\u53e5\u7f16\u5199\u8fd8\u9700\u6839\u636e\u5b9e\u9645\u60c5\u51b5\u8fdb\u884c\u8c03\u6574\u548c\u4f18\u5316\u3002\u7f16\u5199\u9ad8\u6548\u7684SQL\u8bed\u53e5\u9700\u8981\u4e0d\u65ad\u5b66\u4e60\u548c\u5b9e\u8df5\uff0c\u5e76\u7ed3\u5408\u5b9e\u9645\u9879\u76ee\u7684\u9700\u6c42\u8fdb\u884c\u4f18\u5316\u3002\u5e0c\u671b\u4e0a\u8ff0\u7684\u6280\u5de7\u548c\u4ee3\u7801\u793a\u4f8b\u80fd\u5e2e\u52a9\u8bfb\u8005\u66f4\u597d\u5730\u7f16\u5199\u9ad8\u6548\u7684SQL\u8bed\u53e5\u6765\u64cd\u4f5cMySQL\u6570\u636e\u5e93\u3002<\/p>\n
            \u4ee5\u4e0a\u5c31\u662f\u300a\u5982\u4f55\u7f16\u5199\u9ad8\u6548\u7684SQL\u8bed\u53e5\u6765\u64cd\u4f5cMySQL\u6570\u636e\u5e93\uff1f\u300b\u7684\u8be6\u7ec6\u5185\u5bb9\uff0c\u66f4\u591a\u5173\u4e8eSQL\u4f18\u5316,\u9ad8\u6548\u7f16\u7a0b,MySQL\u64cd\u4f5c\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":"
            \u5982\u4f55\u7f16\u5199\u9ad8\u6548\u7684SQL\u8bed\u53e5\u6765\u64cd\u4f5cM...<\/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-199617","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/199617","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=199617"}],"version-history":[{"count":0,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/199617\/revisions"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=199617"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=199617"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=199617"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}