{"id":200058,"date":"2025-05-06T09:58:34","date_gmt":"2025-05-06T01:58:34","guid":{"rendered":"https:\/\/server.hk\/cnblog\/200058\/"},"modified":"2025-05-06T09:58:34","modified_gmt":"2025-05-06T01:58:34","slug":"%e6%8e%a2%e7%a9%b6mysql%e4%b8%ad%e7%9a%84%e5%b8%83%e5%b0%94%e6%95%b0%e6%8d%ae%e7%b1%bb%e5%9e%8b","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/200058\/","title":{"rendered":"\u63a2\u7a76MySQL\u4e2d\u7684\u5e03\u5c14\u6570\u636e\u7c7b\u578b"},"content":{"rendered":"

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

\u63a2\u7a76MySQL\u4e2d\u7684\u5e03\u5c14\u6570\u636e\u7c7b\u578b<\/h1>\n

\u5c0f\u4f19\u4f34\u4eec\u6709\u6ca1\u6709\u89c9\u5f97\u5b66\u4e60\u5f88\u6709\u610f\u601d\uff1f\u6709\u610f\u601d\u5c31\u5bf9\u4e86\uff01\u4eca\u5929\u5c31\u7ed9\u5927\u5bb6\u5e26\u6765\uff0c\u4ee5\u4e0b\u5185\u5bb9\u5c06\u4f1a\u6d89\u53ca\u5230\uff0c\u82e5\u662f\u5728\u5b66\u4e60\u4e2d\u5bf9\u5176\u4e2d\u90e8\u5206\u77e5\u8bc6\u70b9\u6709\u7591\u95ee\uff0c\u6216\u8bb8\u770b\u4e86\u672c\u6587\u5c31\u80fd\u5e2e\u5230\u4f60\uff01<\/p>\n

MySQL\u4e2d\u7684\u5e03\u5c14\u7c7b\u578b\u662f\u4e00\u79cd\u975e\u5e38\u5b9e\u7528\u7684\u6570\u636e\u7c7b\u578b\uff0c\u5b83\u7528\u4e8e\u5b58\u50a8\u903b\u8f91\u503c\uff0c\u53ea\u80fd\u53d6\u4e24\u79cd\u503c\uff1aTRUE\u6216FALSE\u3002\u5728MySQL\u4e2d\uff0c\u5e03\u5c14\u7c7b\u578b\u4e5f\u88ab\u79f0\u4e3aBOOL\u6216BOOLEAN\uff0c\u53ef\u4ee5\u7528TINYINT(1)\u6765\u8868\u793a\u3002\u5728\u672c\u6587\u4e2d\uff0c\u6211\u4eec\u5c06\u6df1\u5165\u63a2\u8ba8MySQL\u4e2d\u5e03\u5c14\u7c7b\u578b\u7684\u5b9a\u4e49\u3001\u7528\u6cd5\u4ee5\u53ca\u5177\u4f53\u7684\u4ee3\u7801\u793a\u4f8b\u3002<\/p>\n

\u9996\u5148\uff0c\u8ba9\u6211\u4eec\u6765\u770b\u4e00\u4e0b\u5728MySQL\u4e2d\u5982\u4f55\u5b9a\u4e49\u4e00\u4e2a\u5e03\u5c14\u7c7b\u578b\u7684\u5217\uff1a<\/p>\n

CREATE TABLE users (\n    id INT NOT NULL AUTO_INCREMENT PRIMARY KEY,\n    name VARCHAR(50) NOT NULL,\n    active BOOLEAN\n);<\/pre>\n
\u5728\u4e0a\u9762\u7684\u4ee3\u7801\u4e2d\uff0c\u6211\u4eec\u521b\u5efa\u4e86\u4e00\u4e2a\u540d\u4e3a\u201cusers\u201d\u7684\u8868\uff0c\u5176\u4e2d\u5305\u542bid\u3001name\u548cactive\u4e09\u4e2a\u5217\u3002active\u5217\u88ab\u5b9a\u4e49\u4e3a\u4e00\u4e2a\u5e03\u5c14\u7c7b\u578b\u7684\u5217\uff0c\u7528\u4e8e\u8868\u793a\u7528\u6237\u662f\u5426\u6fc0\u6d3b\u3002\u5728\u8fd9\u91cc\uff0c\u5e03\u5c14\u7c7b\u578b\u7684\u5217\u53ef\u4ee5\u5b58\u50a8TRUE\u6216FALSE\u7684\u503c\u6216\u80051\u62160\u3002<\/p>\n
\u4e0b\u9762\u8ba9\u6211\u4eec\u6765\u6f14\u793a\u4e00\u4e9b\u5173\u4e8e\u5e03\u5c14\u7c7b\u578b\u7684\u5177\u4f53\u4ee3\u7801\u793a\u4f8b\uff1a<\/p>\n
    \n
  1. \u63d2\u5165\u5e03\u5c14\u503c<\/li>\n<\/ol>\n
    INSERT INTO users(name, active) VALUES('Alice', TRUE);\nINSERT INTO users(name, active) VALUES('Bob', FALSE);<\/pre>\n
    \u5728\u4e0a\u9762\u7684\u4ee3\u7801\u4e2d\uff0c\u6211\u4eec\u5411\u201cusers\u201d\u8868\u4e2d\u63d2\u5165\u4e86\u4e24\u6761\u8bb0\u5f55\uff0c\u4e00\u6761active\u4e3aTRUE\uff0c\u53e6\u4e00\u6761active\u4e3aFALSE\u3002<\/p>\n
      \n
    1. \u66f4\u65b0\u5e03\u5c14\u503c<\/li>\n<\/ol>\n
      UPDATE users SET active = FALSE WHERE name = 'Alice';<\/pre>\n
      \u5728\u4e0a\u9762\u7684\u4ee3\u7801\u4e2d\uff0c\u6211\u4eec\u66f4\u65b0\u4e86\u540d\u4e3aAlice\u7684\u7528\u6237\u7684active\u72b6\u6001\u4e3aFALSE\u3002<\/p>\n
        \n
      1. \u67e5\u8be2\u5e03\u5c14\u503c<\/li>\n<\/ol>\n
        SELECT name, active FROM users WHERE active = TRUE;<\/pre>\n
        \u5728\u4e0a\u9762\u7684\u4ee3\u7801\u4e2d\uff0c\u6211\u4eec\u67e5\u8be2\u4e86\u6240\u6709active\u4e3aTRUE\u7684\u7528\u6237\u8bb0\u5f55\u3002<\/p>\n
        \u9664\u4e86\u4e0a\u9762\u7684\u57fa\u672c\u64cd\u4f5c\u5916\uff0c\u5e03\u5c14\u7c7b\u578b\u8fd8\u53ef\u4ee5\u4e0e\u5176\u4ed6\u64cd\u4f5c\u7b26\u4e00\u8d77\u4f7f\u7528\uff0c\u6bd4\u5982AND\u3001OR\u7b49\u903b\u8f91\u64cd\u4f5c\u7b26\uff1a<\/p>\n
        SELECT name, active FROM users WHERE active = TRUE AND id < 10;<\/pre>\n
        \u4e0a\u9762\u7684\u4ee3\u7801\u67e5\u8be2\u4e86id\u5c0f\u4e8e10\u4e14active\u4e3aTRUE\u7684\u7528\u6237\u8bb0\u5f55\u3002<\/p>\n
        \u603b\u7684\u6765\u8bf4\uff0c\u6df1\u5165\u7406\u89e3MySQL\u4e2d\u7684\u5e03\u5c14\u7c7b\u578b\u9700\u8981\u6211\u4eec\u719f\u7ec3\u638c\u63e1\u5176\u5b9a\u4e49\u3001\u7528\u6cd5\u4ee5\u53ca\u4e0e\u5176\u4ed6\u64cd\u4f5c\u7b26\u7684\u7ed3\u5408\u4f7f\u7528\u3002\u901a\u8fc7\u672c\u6587\u7684\u4ecb\u7ecd\u548c\u4ee3\u7801\u793a\u4f8b\uff0c\u76f8\u4fe1\u8bfb\u8005\u4eec\u80fd\u591f\u66f4\u52a0\u6e05\u6670\u5730\u7406\u89e3MySQL\u4e2d\u5e03\u5c14\u7c7b\u578b\u7684\u6982\u5ff5\u548c\u5e94\u7528\u3002<\/p>\n
        \u7406\u8bba\u8981\u638c\u63e1\uff0c\u5b9e\u64cd\u4e0d\u80fd\u843d\uff01\u4ee5\u4e0a\u5173\u4e8e\u300a\u63a2\u7a76MySQL\u4e2d\u7684\u5e03\u5c14\u6570\u636e\u7c7b\u578b\u300b\u7684\u8be6\u7ec6\u4ecb\u7ecd\uff0c\u5927\u5bb6\u90fd\u638c\u63e1\u4e86\u5427\uff01\u5982\u679c\u60f3\u8981\u7ee7\u7eed\u63d0\u5347\u81ea\u5df1\u7684\u80fd\u529b\uff0c\u90a3\u4e48\u5c31\u6765\u5173\u6ce8\u4e3b\u673a\u5b9d\u8d1d\u516c\u4f17\u53f7\u5427\uff01<\/p>\n
        \n
        \n <\/dt>\n<\/dl>\n","protected":false},"excerpt":{"rendered":"
        \u63a2\u7a76MySQL\u4e2d\u7684\u5e03\u5c14\u6570\u636e\u7c7b\u578b ...<\/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-200058","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/200058","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=200058"}],"version-history":[{"count":0,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/200058\/revisions"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=200058"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=200058"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=200058"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}