{"id":79992,"date":"2024-10-16T13:49:14","date_gmt":"2024-10-16T05:49:14","guid":{"rendered":"https:\/\/server.hk\/cnblog\/79992\/"},"modified":"2024-10-16T13:49:14","modified_gmt":"2024-10-16T05:49:14","slug":"mysql%e6%8c%87%e4%bb%a4-tinyint%ef%bc%88%e5%b0%8f%e6%95%b4%e6%95%b8%ef%bc%89","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/79992\/","title":{"rendered":"MySQL\u6307\u4ee4: TINYINT\uff08\u5c0f\u6574\u6578\uff09"},"content":{"rendered":"<h1 id=\"mysql%e6%8c%87%e4%bb%a4-tinyint%ef%bc%88%e5%b0%8f%e6%95%b4%e6%95%b8%ef%bc%89-qvlxhgdATv\">MySQL\u6307\u4ee4: TINYINT\uff08\u5c0f\u6574\u6578\uff09<\/h1>\n<p>\u5728\u8cc7\u6599\u5eab\u7ba1\u7406\u7cfb\u7d71\u4e2d\uff0cMySQL\u662f\u4e00\u500b\u5ee3\u6cdb\u4f7f\u7528\u7684\u958b\u6e90\u8cc7\u6599\u5eab\u7cfb\u7d71\u3002\u5b83\u63d0\u4f9b\u4e86\u591a\u7a2e\u6578\u64da\u985e\u578b\u4ee5\u6eff\u8db3\u4e0d\u540c\u7684\u9700\u6c42\uff0c\u5176\u4e2d\u4e4b\u4e00\u5c31\u662fTINYINT\u3002\u672c\u6587\u5c07\u6df1\u5165\u63a2\u8a0eTINYINT\u7684\u7279\u6027\u3001\u4f7f\u7528\u60c5\u5883\u53ca\u5176\u5728MySQL\u4e2d\u7684\u61c9\u7528\u3002<\/p>\n<h2 id=\"tinyint%e7%9a%84%e5%ae%9a%e7%be%a9-qvlxhgdATv\">TINYINT\u7684\u5b9a\u7fa9<\/h2>\n<p>TINYINT\u662f\u4e00\u7a2e\u6574\u6578\u6578\u64da\u985e\u578b\uff0c\u5c08\u9580\u7528\u4f86\u5132\u5b58\u5c0f\u7bc4\u570d\u7684\u6574\u6578\u3002\u6839\u64daMySQL\u7684\u5b98\u65b9\u6587\u6a94\uff0cTINYINT\u7684\u7bc4\u570d\u5982\u4e0b\uff1a<\/p>\n<ul>\n<li>\u6709\u7b26\u865f\uff08signed\uff09\uff1a-128 \u5230 127<\/li>\n<li>\u7121\u7b26\u865f\uff08unsigned\uff09\uff1a0 \u5230 255<\/li>\n<\/ul>\n<p>\u7531\u65bc\u5176\u4f54\u7528\u7684\u7a7a\u9593\u50c5\u70ba1\u500b\u5b57\u7bc0\uff0cTINYINT\u975e\u5e38\u9069\u5408\u7528\u65bc\u5132\u5b58\u5c0f\u7bc4\u570d\u7684\u6578\u503c\uff0c\u4f8b\u5982\u72c0\u614b\u6a19\u8a8c\u3001\u5e03\u6797\u503c\u6216\u5c0f\u578b\u8a08\u6578\u5668\u3002<\/p>\n<h2 id=\"tinyint%e7%9a%84%e4%bd%bf%e7%94%a8%e6%83%85%e5%a2%83-qvlxhgdATv\">TINYINT\u7684\u4f7f\u7528\u60c5\u5883<\/h2>\n<p>\u5728\u8a2d\u8a08\u8cc7\u6599\u5eab\u6642\uff0c\u9078\u64c7\u5408\u9069\u7684\u6578\u64da\u985e\u578b\u5c0d\u65bc\u6027\u80fd\u548c\u5b58\u5132\u6548\u7387\u81f3\u95dc\u91cd\u8981\u3002\u4ee5\u4e0b\u662f\u4e00\u4e9b\u4f7f\u7528TINYINT\u7684\u5e38\u898b\u60c5\u5883\uff1a<\/p>\n<ul>\n<li><strong>\u72c0\u614b\u6a19\u8a8c\uff1a<\/strong>\u4f8b\u5982\uff0c\u5132\u5b58\u7528\u6236\u7684\u555f\u7528\u72c0\u614b\uff080\u8868\u793a\u7981\u7528\uff0c1\u8868\u793a\u555f\u7528\uff09\u3002<\/li>\n<li><strong>\u5e03\u6797\u503c\uff1a<\/strong>\u5728\u67d0\u4e9b\u60c5\u6cc1\u4e0b\uff0c\u53ef\u4ee5\u4f7f\u7528TINYINT\u4f86\u8868\u793a\u771f\uff081\uff09\u6216\u5047\uff080\uff09\u3002<\/li>\n<li><strong>\u5c0f\u578b\u8a08\u6578\u5668\uff1a<\/strong>\u4f8b\u5982\uff0c\u5132\u5b58\u67d0\u500b\u9805\u76ee\u7684\u8a55\u5206\uff0c\u7bc4\u570d\u57280\u5230255\u4e4b\u9593\u3002<\/li>\n<\/ul>\n<h2 id=\"%e5%a6%82%e4%bd%95%e5%9c%a8mysql%e4%b8%ad%e4%bd%bf%e7%94%a8tinyint-qvlxhgdATv\">\u5982\u4f55\u5728MySQL\u4e2d\u4f7f\u7528TINYINT<\/h2>\n<p>\u5728MySQL\u4e2d\uff0c\u4f7f\u7528TINYINT\u975e\u5e38\u7c21\u55ae\u3002\u4ee5\u4e0b\u662f\u4e00\u500b\u5275\u5efa\u8868\u683c\u7684\u7bc4\u4f8b\uff0c\u5176\u4e2d\u5305\u542bTINYINT\u985e\u578b\u7684\u6b04\u4f4d\uff1a<\/p>\n<pre><code>\nCREATE TABLE users (\n    id INT AUTO_INCREMENT PRIMARY KEY,\n    username VARCHAR(50) NOT NULL,\n    is_active TINYINT(1) NOT NULL DEFAULT 1\n);\n<\/code><\/pre>\n<p>\u5728\u9019\u500b\u4f8b\u5b50\u4e2d\uff0c<code>is_active<\/code>\u6b04\u4f4d\u4f7f\u7528\u4e86TINYINT\u4f86\u8868\u793a\u7528\u6236\u662f\u5426\u555f\u7528\u3002\u9019\u6a23\u7684\u8a2d\u8a08\u4e0d\u50c5\u7bc0\u7701\u4e86\u5b58\u5132\u7a7a\u9593\uff0c\u9084\u63d0\u9ad8\u4e86\u67e5\u8a62\u6548\u7387\u3002<\/p>\n<h2 id=\"tinyint%e7%9a%84%e5%84%aa%e7%bc%ba%e9%bb%9e-qvlxhgdATv\">TINYINT\u7684\u512a\u7f3a\u9ede<\/h2>\n<h3 id=\"%e5%84%aa%e9%bb%9e-qvlxhgdATv\">\u512a\u9ede<\/h3>\n<ul>\n<li>\u7bc0\u7701\u5b58\u5132\u7a7a\u9593\uff1aTINYINT\u50c5\u4f54\u75281\u500b\u5b57\u7bc0\uff0c\u9069\u5408\u5132\u5b58\u5c0f\u7bc4\u570d\u7684\u6574\u6578\u3002<\/li>\n<li>\u63d0\u9ad8\u6027\u80fd\uff1a\u7531\u65bc\u6578\u64da\u91cf\u5c0f\uff0c\u67e5\u8a62\u548c\u64cd\u4f5c\u901f\u5ea6\u8f03\u5feb\u3002<\/li>\n<\/ul>\n<h3 id=\"%e7%bc%ba%e9%bb%9e-qvlxhgdATv\">\u7f3a\u9ede<\/h3>\n<ul>\n<li>\u7bc4\u570d\u6709\u9650\uff1aTINYINT\u7684\u6578\u503c\u7bc4\u570d\u76f8\u5c0d\u8f03\u5c0f\uff0c\u7121\u6cd5\u5132\u5b58\u8f03\u5927\u7684\u6574\u6578\u3002<\/li>\n<li>\u4e0d\u9069\u5408\u8907\u96dc\u8a08\u7b97\uff1a\u5c0d\u65bc\u9700\u8981\u9032\u884c\u5927\u91cf\u6578\u5b78\u904b\u7b97\u7684\u60c5\u6cc1\uff0c\u53ef\u80fd\u9700\u8981\u9078\u64c7\u5176\u4ed6\u6578\u64da\u985e\u578b\u3002<\/li>\n<\/ul>\n<h2 id=\"%e7%b5%90%e8%ab%96-qvlxhgdATv\">\u7d50\u8ad6<\/h2>\n<p>TINYINT\u662f\u4e00\u500b\u5728MySQL\u4e2d\u975e\u5e38\u5be6\u7528\u7684\u6578\u64da\u985e\u578b\uff0c\u9069\u5408\u7528\u65bc\u5132\u5b58\u5c0f\u7bc4\u570d\u7684\u6574\u6578\u3002\u7121\u8ad6\u662f\u7528\u65bc\u72c0\u614b\u6a19\u8a8c\u3001\u5e03\u6797\u503c\u9084\u662f\u5c0f\u578b\u8a08\u6578\u5668\uff0cTINYINT\u90fd\u80fd\u63d0\u4f9b\u9ad8\u6548\u7684\u5b58\u5132\u89e3\u6c7a\u65b9\u6848\u3002\u5728\u8a2d\u8a08\u8cc7\u6599\u5eab\u6642\uff0c\u5408\u7406\u9078\u64c7\u6578\u64da\u985e\u578b\u80fd\u5920\u986f\u8457\u63d0\u9ad8\u7cfb\u7d71\u7684\u6027\u80fd\u548c\u53ef\u64f4\u5c55\u6027\u3002<\/p>\n<p>\u5982\u9700\u4e86\u89e3\u66f4\u591a\u95dc\u65bc\u8cc7\u6599\u5eab\u7ba1\u7406\u548c\u5176\u4ed6\u6280\u8853\u7684\u8cc7\u8a0a\uff0c\u8acb\u8a2a\u554f\u6211\u5011\u7684\u7db2\u7ad9 <a href=\"https:\/\/server.hk\">Server.HK<\/a>\uff0c\u6211\u5011\u63d0\u4f9b\u5404\u7a2e <a href=\"https:\/\/server.hk\">VPS<\/a> \u548c <a href=\"https:\/\/server.hk\">\u9999\u6e2f\u4f3a\u670d\u5668<\/a> \u89e3\u6c7a\u65b9\u6848\uff0c\u52a9\u60a8\u8f15\u9b06\u7ba1\u7406\u60a8\u7684\u6578\u64da\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u4e86\u89e3MySQL\u4e2d\u7684TINYINT\u6570\u636e\u7c7b\u578b\uff0c\u9002\u7528\u4e8e\u5b58\u50a8\u5c0f\u6574\u6570\uff0c\u8282\u7701\u5b58\u50a8\u7a7a\u95f4\uff0c\u63d0\u5347\u6570\u636e\u5e93\u6027\u80fd\u3002<\/p>\n","protected":false},"author":0,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[101],"tags":[],"class_list":["post-79992","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/79992","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"}],"replies":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/comments?post=79992"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/79992\/revisions"}],"predecessor-version":[{"id":79993,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/79992\/revisions\/79993"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=79992"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=79992"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=79992"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}