{"id":78770,"date":"2024-10-16T12:17:17","date_gmt":"2024-10-16T04:17:17","guid":{"rendered":"https:\/\/server.hk\/cnblog\/78770\/"},"modified":"2024-10-16T12:17:18","modified_gmt":"2024-10-16T04:17:18","slug":"mysql%e6%8c%87%e4%bb%a4-integer%ef%bc%88%e6%95%b4%e6%95%b8%ef%bc%89","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/78770\/","title":{"rendered":"MySQL\u6307\u4ee4: INTEGER\uff08\u6574\u6578\uff09"},"content":{"rendered":"<h1 id=\"mysql%e6%8c%87%e4%bb%a4-integer%ef%bc%88%e6%95%b4%e6%95%b8%ef%bc%89-nPnqWRYfgY\">MySQL\u6307\u4ee4: INTEGER\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\u7cfb\u7d71\u3002\u5b83\u652f\u63f4\u591a\u7a2e\u6578\u64da\u985e\u578b\uff0c\u5176\u4e2d\u6574\u6578\uff08INTEGER\uff09\u662f\u4e00\u500b\u57fa\u672c\u4e14\u91cd\u8981\u7684\u6578\u64da\u985e\u578b\u3002\u672c\u6587\u5c07\u6df1\u5165\u63a2\u8a0eMySQL\u4e2d\u7684INTEGER\u6578\u64da\u985e\u578b\uff0c\u5305\u62ec\u5176\u5b9a\u7fa9\u3001\u4f7f\u7528\u60c5\u5883\u3001\u7bc4\u4f8b\u53ca\u6ce8\u610f\u4e8b\u9805\u3002<\/p>\n<h2 id=\"integer%e6%95%b8%e6%93%9a%e9%a1%9e%e5%9e%8b%e7%9a%84%e5%ae%9a%e7%be%a9-nPnqWRYfgY\">INTEGER\u6578\u64da\u985e\u578b\u7684\u5b9a\u7fa9<\/h2>\n<p>\u5728MySQL\u4e2d\uff0cINTEGER\u662f\u4e00\u7a2e\u6574\u6578\u6578\u64da\u985e\u578b\uff0c\u7528\u65bc\u5132\u5b58\u4e0d\u5e36\u5c0f\u6578\u7684\u6578\u5b57\u3002\u6839\u64da\u4e0d\u540c\u7684\u9700\u6c42\uff0cMySQL\u63d0\u4f9b\u4e86\u591a\u7a2e\u6574\u6578\u985e\u578b\uff0c\u5305\u62ec\uff1a<\/p>\n<ul>\n<li><strong>TINYINT<\/strong>: \u7bc4\u570d\u70ba -128 \u5230 127\uff08\u6709\u7b26\u865f\uff09\u6216 0 \u5230 255\uff08\u7121\u7b26\u865f\uff09\uff0c\u4f54\u75281\u500b\u5b57\u7bc0\u3002<\/li>\n<li><strong>SMALLINT<\/strong>: \u7bc4\u570d\u70ba -32,768 \u5230 32,767\uff08\u6709\u7b26\u865f\uff09\u6216 0 \u5230 65,535\uff08\u7121\u7b26\u865f\uff09\uff0c\u4f54\u75282\u500b\u5b57\u7bc0\u3002<\/li>\n<li><strong>MEDIUMINT<\/strong>: \u7bc4\u570d\u70ba -8,388,608 \u5230 8,388,607\uff08\u6709\u7b26\u865f\uff09\u6216 0 \u5230 16,777,215\uff08\u7121\u7b26\u865f\uff09\uff0c\u4f54\u75283\u500b\u5b57\u7bc0\u3002<\/li>\n<li><strong>INT<\/strong>: \u7bc4\u570d\u70ba -2,147,483,648 \u5230 2,147,483,647\uff08\u6709\u7b26\u865f\uff09\u6216 0 \u5230 4,294,967,295\uff08\u7121\u7b26\u865f\uff09\uff0c\u4f54\u75284\u500b\u5b57\u7bc0\u3002<\/li>\n<li><strong>BIGINT<\/strong>: \u7bc4\u570d\u70ba -9,223,372,036,854,775,808 \u5230 9,223,372,036,854,775,807\uff08\u6709\u7b26\u865f\uff09\u6216 0 \u5230 18,446,744,073,709,551,615\uff08\u7121\u7b26\u865f\uff09\uff0c\u4f54\u75288\u500b\u5b57\u7bc0\u3002<\/li>\n<\/ul>\n<h2 id=\"%e4%bd%bf%e7%94%a8%e6%83%85%e5%a2%83-nPnqWRYfgY\">\u4f7f\u7528\u60c5\u5883<\/h2>\n<p>\u6574\u6578\u985e\u578b\u5728\u8cc7\u6599\u5eab\u4e2d\u6709\u591a\u7a2e\u61c9\u7528\uff0c\u4ee5\u4e0b\u662f\u4e00\u4e9b\u5e38\u898b\u7684\u4f7f\u7528\u60c5\u5883\uff1a<\/p>\n<ul>\n<li><strong>\u8a08\u6578\u5668<\/strong>: \u7528\u65bc\u5132\u5b58\u7528\u6236\u6578\u91cf\u3001\u5546\u54c1\u5eab\u5b58\u7b49\u3002<\/li>\n<li><strong>\u6a19\u8b58\u7b26<\/strong>: \u7528\u65bc\u552f\u4e00\u6a19\u8b58\u8cc7\u6599\u884c\uff0c\u4f8b\u5982\u7528\u6236ID\u6216\u8a02\u55ae\u865f\u3002<\/li>\n<li><strong>\u6578\u91cf<\/strong>: \u7528\u65bc\u5132\u5b58\u6578\u91cf\u6578\u64da\uff0c\u5982\u92b7\u552e\u6578\u91cf\u6216\u8a55\u5206\u3002<\/li>\n<\/ul>\n<h2 id=\"%e7%af%84%e4%be%8b-nPnqWRYfgY\">\u7bc4\u4f8b<\/h2>\n<p>\u4ee5\u4e0b\u662f\u5982\u4f55\u5728MySQL\u4e2d\u5275\u5efa\u4e00\u500b\u5305\u542bINTEGER\u985e\u578b\u7684\u8868\u683c\u7684\u7bc4\u4f8b\uff1a<\/p>\n<pre><code>CREATE TABLE products (\n    product_id INT AUTO_INCREMENT PRIMARY KEY,\n    product_name VARCHAR(100) NOT NULL,\n    quantity TINYINT UNSIGNED NOT NULL,\n    price DECIMAL(10, 2) NOT NULL\n);<\/code><\/pre>\n<p>\u5728\u9019\u500b\u7bc4\u4f8b\u4e2d\uff0c<code>product_id<\/code>\u4f7f\u7528\u4e86<code>INT<\/code>\u985e\u578b\uff0c\u4e26\u8a2d\u7f6e\u70ba\u81ea\u52d5\u589e\u91cf\uff0c\u9019\u610f\u5473\u8457\u6bcf\u6b21\u63d2\u5165\u65b0\u8a18\u9304\u6642\uff0c<code>product_id<\/code>\u6703\u81ea\u52d5\u589e\u52a0\u3002<code>quantity<\/code>\u4f7f\u7528\u4e86<code>TINYINT UNSIGNED<\/code>\uff0c\u9069\u5408\u5132\u5b58\u5c0f\u7bc4\u570d\u7684\u6578\u91cf\u3002<\/p>\n<h2 id=\"%e6%b3%a8%e6%84%8f%e4%ba%8b%e9%a0%85-nPnqWRYfgY\">\u6ce8\u610f\u4e8b\u9805<\/h2>\n<p>\u5728\u4f7f\u7528INTEGER\u985e\u578b\u6642\uff0c\u6709\u5e7e\u9ede\u9700\u8981\u6ce8\u610f\uff1a<\/p>\n<ul>\n<li><strong>\u9078\u64c7\u5408\u9069\u7684\u985e\u578b<\/strong>: \u6839\u64da\u5be6\u969b\u9700\u6c42\u9078\u64c7\u5408\u9069\u7684\u6574\u6578\u985e\u578b\uff0c\u4ee5\u907f\u514d\u6d6a\u8cbb\u5b58\u5132\u7a7a\u9593\u3002<\/li>\n<li><strong>\u7bc4\u570d\u9650\u5236<\/strong>: \u78ba\u4fdd\u6240\u9078\u64c7\u7684\u6574\u6578\u985e\u578b\u80fd\u5920\u6eff\u8db3\u6578\u64da\u7684\u7bc4\u570d\u9700\u6c42\uff0c\u907f\u514d\u6ea2\u51fa\u3002<\/li>\n<li><strong>\u6027\u80fd\u8003\u91cf<\/strong>: \u6574\u6578\u985e\u578b\u7684\u67e5\u8a62\u6027\u80fd\u901a\u5e38\u512a\u65bc\u5176\u4ed6\u6578\u64da\u985e\u578b\uff0c\u7279\u5225\u662f\u5728\u9032\u884c\u6578\u5b78\u904b\u7b97\u6642\u3002<\/li>\n<\/ul>\n<h2 id=\"%e7%b8%bd%e7%b5%90-nPnqWRYfgY\">\u7e3d\u7d50<\/h2>\n<p>MySQL\u4e2d\u7684INTEGER\u6578\u64da\u985e\u578b\u662f\u8cc7\u6599\u5eab\u8a2d\u8a08\u4e2d\u4e0d\u53ef\u6216\u7f3a\u7684\u4e00\u90e8\u5206\u3002\u5b83\u4e0d\u50c5\u80fd\u6709\u6548\u5730\u5132\u5b58\u6574\u6578\u6578\u64da\uff0c\u9084\u80fd\u5728\u591a\u7a2e\u61c9\u7528\u5834\u666f\u4e2d\u767c\u63ee\u91cd\u8981\u4f5c\u7528\u3002\u9078\u64c7\u5408\u9069\u7684\u6574\u6578\u985e\u578b\u53ef\u4ee5\u63d0\u9ad8\u8cc7\u6599\u5eab\u7684\u6027\u80fd\u548c\u6548\u7387\u3002\u82e5\u60a8\u5c0d\u65bc<code>VPS<\/code>\u3001<code>\u9999\u6e2fvps<\/code>\u6216\u5176\u4ed6<code>\u670d\u52a1\u5668<\/code>\u89e3\u6c7a\u65b9\u6848\u611f\u8208\u8da3\uff0c\u6b61\u8fce\u8a2a\u554f\u6211\u5011\u7684\u7db2\u7ad9 <a href=\"https:\/\/server.hk\">Server.HK<\/a> \u7372\u53d6\u66f4\u591a\u8cc7\u8a0a\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u4e86\u89e3MySQL\u4e2d\u7684INTEGER\u6570\u636e\u7c7b\u578b\uff0c\u638c\u63e1\u5176\u5b9a\u4e49\u3001\u4f7f\u7528\u573a\u666f\u53ca\u5b58\u50a8\u7279\u6027\uff0c\u63d0\u5347\u6570\u636e\u5e93\u8bbe\u8ba1\u4e0e\u7ba1\u7406\u80fd\u529b\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-78770","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/78770","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=78770"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/78770\/revisions"}],"predecessor-version":[{"id":78771,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/78770\/revisions\/78771"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=78770"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=78770"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=78770"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}