{"id":78768,"date":"2024-10-16T12:16:15","date_gmt":"2024-10-16T04:16:15","guid":{"rendered":"https:\/\/server.hk\/cnblog\/78768\/"},"modified":"2024-10-16T12:16:15","modified_gmt":"2024-10-16T04:16:15","slug":"mysql%e6%8c%87%e4%bb%a4-int%ef%bc%88%e6%95%b4%e6%95%b8%ef%bc%89","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/78768\/","title":{"rendered":"MySQL\u6307\u4ee4: INT\uff08\u6574\u6578\uff09"},"content":{"rendered":"<h1 id=\"mysql%e6%8c%87%e4%bb%a4-int%ef%bc%88%e6%95%b4%e6%95%b8%ef%bc%89-flSerfljiL\">MySQL\u6307\u4ee4: INT\uff08\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\uff0c\u7279\u5225\u9069\u5408\u7528\u65bc\u7db2\u9801\u61c9\u7528\u7a0b\u5f0f\u3002\u7576\u8a2d\u8a08\u8cc7\u6599\u5eab\u6642\uff0c\u9078\u64c7\u6b63\u78ba\u7684\u8cc7\u6599\u985e\u578b\u5c0d\u65bc\u6578\u64da\u7684\u5b58\u5132\u548c\u8655\u7406\u81f3\u95dc\u91cd\u8981\u3002\u5728MySQL\u4e2d\uff0c\u6574\u6578\uff08INT\uff09\u662f\u4e00\u7a2e\u5e38\u7528\u7684\u8cc7\u6599\u985e\u578b\uff0c\u672c\u6587\u5c07\u6df1\u5165\u63a2\u8a0eINT\u7684\u7279\u6027\u3001\u4f7f\u7528\u65b9\u6cd5\u53ca\u5176\u5728\u5be6\u969b\u61c9\u7528\u4e2d\u7684\u91cd\u8981\u6027\u3002<\/p>\n<h2 id=\"int%e8%b3%87%e6%96%99%e9%a1%9e%e5%9e%8b%e6%a6%82%e8%bf%b0-flSerfljiL\">INT\u8cc7\u6599\u985e\u578b\u6982\u8ff0<\/h2>\n<p>\u5728MySQL\u4e2d\uff0cINT\u662f\u4e00\u7a2e\u6574\u6578\u8cc7\u6599\u985e\u578b\uff0c\u7528\u65bc\u5b58\u5132\u6574\u6578\u503c\u3002\u6839\u64da\u4e0d\u540c\u7684\u9700\u6c42\uff0cMySQL\u63d0\u4f9b\u4e86\u591a\u7a2e\u6574\u6578\u985e\u578b\uff0c\u5305\u62ecTINYINT\u3001SMALLINT\u3001MEDIUMINT\u3001INT\u548cBIGINT\u3002\u9019\u4e9b\u985e\u578b\u7684\u4e3b\u8981\u5340\u5225\u5728\u65bc\u5b83\u5011\u6240\u80fd\u8868\u793a\u7684\u6578\u503c\u7bc4\u570d\u548c\u6240\u9700\u7684\u5b58\u5132\u7a7a\u9593\u3002<\/p>\n<ul>\n<li><strong>TINYINT<\/strong>: \u4f54\u75281\u500b\u5b57\u7bc0\uff0c\u7bc4\u570d\u70ba-128\u5230127\uff08\u6709\u7b26\u865f\uff09\u62160\u5230255\uff08\u7121\u7b26\u865f\uff09\u3002<\/li>\n<li><strong>SMALLINT<\/strong>: \u4f54\u75282\u500b\u5b57\u7bc0\uff0c\u7bc4\u570d\u70ba-32,768\u523032,767\uff08\u6709\u7b26\u865f\uff09\u62160\u523065,535\uff08\u7121\u7b26\u865f\uff09\u3002<\/li>\n<li><strong>MEDIUMINT<\/strong>: \u4f54\u75283\u500b\u5b57\u7bc0\uff0c\u7bc4\u570d\u70ba-8,388,608\u52308,388,607\uff08\u6709\u7b26\u865f\uff09\u62160\u523016,777,215\uff08\u7121\u7b26\u865f\uff09\u3002<\/li>\n<li><strong>INT<\/strong>: \u4f54\u75284\u500b\u5b57\u7bc0\uff0c\u7bc4\u570d\u70ba-2,147,483,648\u52302,147,483,647\uff08\u6709\u7b26\u865f\uff09\u62160\u52304,294,967,295\uff08\u7121\u7b26\u865f\uff09\u3002<\/li>\n<li><strong>BIGINT<\/strong>: \u4f54\u75288\u500b\u5b57\u7bc0\uff0c\u7bc4\u570d\u70ba-9,223,372,036,854,775,808\u52309,223,372,036,854,775,807\uff08\u6709\u7b26\u865f\uff09\u62160\u523018,446,744,073,709,551,615\uff08\u7121\u7b26\u865f\uff09\u3002<\/li>\n<\/ul>\n<h2 id=\"%e4%bd%bf%e7%94%a8int%e7%9a%84%e5%84%aa%e5%8b%a2-flSerfljiL\">\u4f7f\u7528INT\u7684\u512a\u52e2<\/h2>\n<p>\u9078\u64c7INT\u4f5c\u70ba\u8cc7\u6599\u985e\u578b\u7684\u4e3b\u8981\u512a\u52e2\u5728\u65bc\u5176\u9ad8\u6548\u7684\u5b58\u5132\u548c\u5feb\u901f\u7684\u67e5\u8a62\u6027\u80fd\u3002\u7531\u65bc\u6574\u6578\u904b\u7b97\u901a\u5e38\u6bd4\u6d6e\u9ede\u6578\u904b\u7b97\u66f4\u5feb\uff0c\u56e0\u6b64\u5728\u9700\u8981\u9032\u884c\u5927\u91cf\u6578\u64da\u8a08\u7b97\u7684\u61c9\u7528\u4e2d\uff0c\u4f7f\u7528INT\u53ef\u4ee5\u986f\u8457\u63d0\u9ad8\u6027\u80fd\u3002\u6b64\u5916\uff0c\u6574\u6578\u985e\u578b\u7684\u6578\u64da\u5728\u7d22\u5f15\u6642\u4e5f\u66f4\u70ba\u9ad8\u6548\uff0c\u9019\u5c0d\u65bc\u5927\u578b\u8cc7\u6599\u5eab\u5c24\u70ba\u91cd\u8981\u3002<\/p>\n<h2 id=\"%e5%a6%82%e4%bd%95%e4%bd%bf%e7%94%a8int-flSerfljiL\">\u5982\u4f55\u4f7f\u7528INT<\/h2>\n<p>\u5728MySQL\u4e2d\uff0c\u5b9a\u7fa9\u4e00\u500bINT\u985e\u578b\u7684\u6b04\u4f4d\u975e\u5e38\u7c21\u55ae\u3002\u4ee5\u4e0b\u662f\u4e00\u500b\u5275\u5efa\u8868\u683c\u7684\u7bc4\u4f8b\uff0c\u5176\u4e2d\u5305\u542b\u4e00\u500bINT\u985e\u578b\u7684\u6b04\u4f4d\uff1a<\/p>\n<pre><code>CREATE TABLE users (\n    id INT AUTO_INCREMENT PRIMARY KEY,\n    username VARCHAR(50) NOT NULL,\n    age INT\n);<\/code><\/pre>\n<p>\u5728\u9019\u500b\u4f8b\u5b50\u4e2d\uff0c`id`\u6b04\u4f4d\u88ab\u5b9a\u7fa9\u70baINT\u985e\u578b\uff0c\u4e26\u8a2d\u7f6e\u70ba\u81ea\u52d5\u589e\u91cf\uff0c\u9019\u610f\u5473\u8457\u6bcf\u7576\u63d2\u5165\u65b0\u8a18\u9304\u6642\uff0c`id`\u7684\u503c\u6703\u81ea\u52d5\u589e\u52a0\u3002`age`\u6b04\u4f4d\u4e5f\u662fINT\u985e\u578b\uff0c\u7528\u65bc\u5b58\u5132\u7528\u6236\u7684\u5e74\u9f61\u3002<\/p>\n<h2 id=\"int%e7%9a%84%e6%87%89%e7%94%a8%e5%a0%b4%e6%99%af-flSerfljiL\">INT\u7684\u61c9\u7528\u5834\u666f<\/h2>\n<p>\u6574\u6578\u985e\u578b\u5728\u8a31\u591a\u61c9\u7528\u4e2d\u90fd\u975e\u5e38\u5e38\u898b\u3002\u4f8b\u5982\uff0c\u5728\u7528\u6236\u7ba1\u7406\u7cfb\u7d71\u4e2d\uff0c\u901a\u5e38\u6703\u4f7f\u7528INT\u4f86\u5b58\u5132\u7528\u6236\u7684ID\u3001\u5e74\u9f61\u3001\u8a02\u55ae\u6578\u91cf\u7b49\u3002\u5728\u91d1\u878d\u7cfb\u7d71\u4e2d\uff0c\u6574\u6578\u4e5f\u5e38\u7528\u65bc\u5b58\u5132\u91d1\u984d\uff08\u4ee5\u6700\u5c0f\u55ae\u4f4d\u8868\u793a\uff0c\u5982\u5206\u6216\u5398\uff09\u3002<\/p>\n<h2 id=\"%e7%b5%90%e8%ab%96-flSerfljiL\">\u7d50\u8ad6<\/h2>\n<p>\u7e3d\u7d50\u4f86\u8aaa\uff0cINT\u662f\u4e00\u7a2e\u9748\u6d3b\u4e14\u9ad8\u6548\u7684\u8cc7\u6599\u985e\u578b\uff0c\u9069\u5408\u7528\u65bc\u5404\u7a2e\u61c9\u7528\u5834\u666f\u3002\u9078\u64c7\u5408\u9069\u7684\u6574\u6578\u985e\u578b\u4e0d\u50c5\u80fd\u63d0\u9ad8\u8cc7\u6599\u5eab\u7684\u6027\u80fd\uff0c\u9084\u80fd\u6709\u6548\u5730\u7ba1\u7406\u548c\u5b58\u5132\u6578\u64da\u3002\u5728\u8a2d\u8a08\u8cc7\u6599\u5eab\u6642\uff0c\u4e86\u89e3\u4e0d\u540c\u6574\u6578\u985e\u578b\u7684\u7279\u6027\u548c\u9069\u7528\u7bc4\u570d\u662f\u81f3\u95dc\u91cd\u8981\u7684\u3002<\/p>\n<p>\u5982\u9700\u9032\u4e00\u6b65\u4e86\u89e3\u5982\u4f55\u5728\u60a8\u7684\u9805\u76ee\u4e2d\u4f7f\u7528MySQL\u53ca\u5176\u5404\u7a2e\u529f\u80fd\uff0c\u60a8\u53ef\u4ee5\u8003\u616e\u4f7f\u7528<a href=\"https:\/\/server.hk\">\u9999\u6e2fVPS<\/a>\u4f86\u642d\u5efa\u60a8\u7684\u8cc7\u6599\u5eab\u74b0\u5883\uff0c\u4eab\u53d7\u7a69\u5b9a\u548c\u9ad8\u6548\u7684\u670d\u52d9\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u4e86\u89e3MySQL\u4e2d\u7684INT\u6307\u4ee4\uff0c\u638c\u63e1\u6574\u6578\u6578\u64da\u985e\u578b\u7684\u5b9a\u7fa9\u3001\u7bc4\u570d\u53ca\u4f7f\u7528\u65b9\u6cd5\uff0c\u63d0\u5347\u6578\u64da\u5eab\u7ba1\u7406\u6280\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-78768","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/78768","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=78768"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/78768\/revisions"}],"predecessor-version":[{"id":78769,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/78768\/revisions\/78769"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=78768"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=78768"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=78768"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}