{"id":188866,"date":"2024-11-12T02:34:24","date_gmt":"2024-11-11T18:34:24","guid":{"rendered":"https:\/\/server.hk\/cnblog\/188866\/"},"modified":"2024-11-12T02:34:26","modified_gmt":"2024-11-11T18:34:26","slug":"%e6%8e%a2%e6%9e%90%e6%95%b8%e6%93%9a%e5%ba%ab%e4%b8%ad%e9%87%91%e9%8c%a2%e7%9a%84%e6%95%b8%e6%93%9a%e9%a1%9e%e5%9e%8b-%e6%95%b8%e6%93%9a%e5%ba%ab-%e9%87%91%e9%8c%a2%e7%9a%84%e6%95%b8%e6%93%9a","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/188866\/","title":{"rendered":"\u63a2\u6790\u6578\u64da\u5eab\u4e2d\u91d1\u9322\u7684\u6578\u64da\u985e\u578b (\u6578\u64da\u5eab \u91d1\u9322\u7684\u6578\u64da\u985e\u578b)"},"content":{"rendered":"<h1 id=\"%e6%8e%a2%e6%9e%90%e6%95%b8%e6%93%9a%e5%ba%ab%e4%b8%ad%e9%87%91%e9%8c%a2%e7%9a%84%e6%95%b8%e6%93%9a%e9%a1%9e%e5%9e%8b-yAckIkjLbD\">\u63a2\u6790\u6578\u64da\u5eab\u4e2d\u91d1\u9322\u7684\u6578\u64da\u985e\u578b<\/h1>\n<p>\u5728\u7576\u4eca\u7684\u6578\u64da\u9a45\u52d5\u6642\u4ee3\uff0c\u6578\u64da\u5eab\u7684\u8a2d\u8a08\u548c\u7ba1\u7406\u8b8a\u5f97\u8d8a\u4f86\u8d8a\u91cd\u8981\u3002\u7279\u5225\u662f\u5728\u91d1\u878d\u548c\u5546\u696d\u61c9\u7528\u4e2d\uff0c\u91d1\u9322\u7684\u6578\u64da\u985e\u578b\u662f\u6578\u64da\u5eab\u8a2d\u8a08\u4e2d\u4e0d\u53ef\u6216\u7f3a\u7684\u4e00\u90e8\u5206\u3002\u672c\u6587\u5c07\u63a2\u8a0e\u6578\u64da\u5eab\u4e2d\u91d1\u9322\u7684\u6578\u64da\u985e\u578b\uff0c\u4e26\u5206\u6790\u5176\u5728\u5be6\u969b\u61c9\u7528\u4e2d\u7684\u91cd\u8981\u6027\u3002<\/p>\n<h2 id=\"%e9%87%91%e9%8c%a2%e7%9a%84%e6%95%b8%e6%93%9a%e9%a1%9e%e5%9e%8b%e6%a6%82%e8%bf%b0-yAckIkjLbD\">\u91d1\u9322\u7684\u6578\u64da\u985e\u578b\u6982\u8ff0<\/h2>\n<p>\u5728\u6578\u64da\u5eab\u4e2d\uff0c\u91d1\u9322\u901a\u5e38\u9700\u8981\u7cbe\u78ba\u5730\u8868\u793a\u548c\u8a08\u7b97\u3002\u9019\u5c31\u8981\u6c42\u6211\u5011\u9078\u64c7\u5408\u9069\u7684\u6578\u64da\u985e\u578b\u4f86\u5b58\u5132\u91d1\u9322\u6578\u64da\u3002\u5e38\u898b\u7684\u6578\u64da\u985e\u578b\u5305\u62ec\uff1a<\/p>\n<ul>\n<li><strong>\u6574\u6578\u578b\uff08Integer\uff09<\/strong>\uff1a\u9019\u7a2e\u6578\u64da\u985e\u578b\u53ef\u4ee5\u7528\u4f86\u8868\u793a\u6c92\u6709\u5c0f\u6578\u7684\u91d1\u984d\uff0c\u4f8b\u5982\u67d0\u4e9b\u8ca8\u5e63\u7684\u6700\u5c0f\u55ae\u4f4d\uff08\u5982\u5206\u6216\u89d2\uff09\u3002<\/li>\n<li><strong>\u6d6e\u9ede\u578b\uff08Float\uff09<\/strong>\uff1a\u9019\u7a2e\u6578\u64da\u985e\u578b\u53ef\u4ee5\u8868\u793a\u5e36\u6709\u5c0f\u6578\u7684\u91d1\u984d\uff0c\u4f46\u7531\u65bc\u6d6e\u9ede\u6578\u7684\u7cbe\u5ea6\u554f\u984c\uff0c\u901a\u5e38\u4e0d\u5efa\u8b70\u7528\u65bc\u91d1\u9322\u7684\u8a08\u7b97\u3002<\/li>\n<li><strong>\u5341\u9032\u5236\u578b\uff08Decimal\uff09<\/strong>\uff1a\u9019\u662f\u6700\u5e38\u7528\u7684\u91d1\u9322\u6578\u64da\u985e\u578b\uff0c\u56e0\u70ba\u5b83\u53ef\u4ee5\u7cbe\u78ba\u5730\u8868\u793a\u5c0f\u6578\uff0c\u907f\u514d\u4e86\u6d6e\u9ede\u6578\u7684\u7cbe\u5ea6\u554f\u984c\u3002<\/li>\n<\/ul>\n<h2 id=\"%e6%95%b4%e6%95%b8%e5%9e%8b%e7%9a%84%e6%87%89%e7%94%a8-yAckIkjLbD\">\u6574\u6578\u578b\u7684\u61c9\u7528<\/h2>\n<p>\u6574\u6578\u578b\u6578\u64da\u985e\u578b\u5728\u67d0\u4e9b\u60c5\u6cc1\u4e0b\u662f\u5408\u9069\u7684\uff0c\u7279\u5225\u662f\u7576\u6211\u5011\u53ea\u9700\u8981\u8868\u793a\u6574\u6578\u91d1\u984d\u6642\u3002\u4f8b\u5982\uff0c\u5728\u8655\u7406\u67d0\u4e9b\u8ca8\u5e63\u7684\u6700\u5c0f\u55ae\u4f4d\u6642\uff0c\u6574\u6578\u578b\u53ef\u4ee5\u6709\u6548\u5730\u907f\u514d\u5c0f\u6578\u9ede\u5e36\u4f86\u7684\u8907\u96dc\u6027\u3002\u4ee5\u4e0b\u662f\u4e00\u500b\u4f7f\u7528\u6574\u6578\u578b\u7684\u793a\u4f8b\uff1a<\/p>\n<pre><code>CREATE TABLE transactions (\n    id INT PRIMARY KEY,\n    amount INT -- \u4ee5\u5206\u70ba\u55ae\u4f4d\n);\n<\/code><\/pre>\n<p>\u5728\u9019\u500b\u4f8b\u5b50\u4e2d\uff0c\u91d1\u984d\u4ee5\u5206\u70ba\u55ae\u4f4d\u5b58\u5132\uff0c\u9019\u6a23\u53ef\u4ee5\u907f\u514d\u5c0f\u6578\u9ede\u7684\u554f\u984c\u3002<\/p>\n<h2 id=\"%e6%b5%ae%e9%bb%9e%e5%9e%8b%e7%9a%84%e5%b1%80%e9%99%90%e6%80%a7-yAckIkjLbD\">\u6d6e\u9ede\u578b\u7684\u5c40\u9650\u6027<\/h2>\n<p>\u96d6\u7136\u6d6e\u9ede\u578b\u6578\u64da\u985e\u578b\u53ef\u4ee5\u8868\u793a\u5e36\u6709\u5c0f\u6578\u7684\u91d1\u984d\uff0c\u4f46\u7531\u65bc\u5176\u7cbe\u5ea6\u554f\u984c\uff0c\u901a\u5e38\u4e0d\u5efa\u8b70\u7528\u65bc\u91d1\u9322\u7684\u8a08\u7b97\u3002\u6d6e\u9ede\u6578\u5728\u8a08\u7b97\u904e\u7a0b\u4e2d\u53ef\u80fd\u6703\u51fa\u73fe\u7cbe\u5ea6\u640d\u5931\uff0c\u9019\u5c0d\u65bc\u91d1\u878d\u61c9\u7528\u4f86\u8aaa\u662f\u4e0d\u53ef\u63a5\u53d7\u7684\u3002\u56e0\u6b64\uff0c\u5728\u6d89\u53ca\u91d1\u9322\u7684\u6578\u64da\u5eab\u8a2d\u8a08\u4e2d\uff0c\u61c9\u907f\u514d\u4f7f\u7528\u6d6e\u9ede\u578b\u3002<\/p>\n<h2 id=\"%e5%8d%81%e9%80%b2%e5%88%b6%e5%9e%8b%e7%9a%84%e5%84%aa%e5%8b%a2-yAckIkjLbD\">\u5341\u9032\u5236\u578b\u7684\u512a\u52e2<\/h2>\n<p>\u5341\u9032\u5236\u578b\u6578\u64da\u985e\u578b\u662f\u8655\u7406\u91d1\u9322\u7684\u6700\u4f73\u9078\u64c7\u3002\u5b83\u80fd\u5920\u7cbe\u78ba\u5730\u8868\u793a\u5c0f\u6578\uff0c\u4e26\u4e14\u5728\u8a08\u7b97\u904e\u7a0b\u4e2d\u4e0d\u6703\u51fa\u73fe\u7cbe\u5ea6\u640d\u5931\u3002\u4ee5\u4e0b\u662f\u4e00\u500b\u4f7f\u7528\u5341\u9032\u5236\u578b\u7684\u793a\u4f8b\uff1a<\/p>\n<pre><code>CREATE TABLE transactions (\n    id INT PRIMARY KEY,\n    amount DECIMAL(10, 2) -- 10\u4f4d\u6578\u5b57\uff0c\u5176\u4e2d2\u4f4d\u70ba\u5c0f\u6578\n);\n<\/code><\/pre>\n<p>\u5728\u9019\u500b\u4f8b\u5b50\u4e2d\uff0c\u91d1\u984d\u53ef\u4ee5\u7cbe\u78ba\u5230\u5c0f\u6578\u9ede\u5f8c\u5169\u4f4d\uff0c\u9019\u5c0d\u65bc\u5927\u591a\u6578\u8ca8\u5e63\u4f86\u8aaa\u662f\u8db3\u5920\u7684\u3002<\/p>\n<h2 id=\"%e9%87%91%e9%8c%a2%e6%95%b8%e6%93%9a%e9%a1%9e%e5%9e%8b%e7%9a%84%e9%81%b8%e6%93%87%e8%80%83%e9%87%8f-yAckIkjLbD\">\u91d1\u9322\u6578\u64da\u985e\u578b\u7684\u9078\u64c7\u8003\u91cf<\/h2>\n<p>\u5728\u9078\u64c7\u91d1\u9322\u7684\u6578\u64da\u985e\u578b\u6642\uff0c\u9700\u8981\u8003\u616e\u4ee5\u4e0b\u5e7e\u500b\u56e0\u7d20\uff1a<\/p>\n<ul>\n<li><strong>\u7cbe\u5ea6<\/strong>\uff1a\u91d1\u9322\u8a08\u7b97\u9700\u8981\u9ad8\u7cbe\u5ea6\uff0c\u5341\u9032\u5236\u578b\u662f\u6700\u4f73\u9078\u64c7\u3002<\/li>\n<li><strong>\u6027\u80fd<\/strong>\uff1a\u6574\u6578\u578b\u5728\u67d0\u4e9b\u60c5\u6cc1\u4e0b\u53ef\u80fd\u6703\u63d0\u4f9b\u66f4\u597d\u7684\u6027\u80fd\uff0c\u4f46\u9700\u78ba\u4fdd\u4e0d\u6703\u5f71\u97ff\u5230\u7cbe\u5ea6\u3002<\/li>\n<li><strong>\u53ef\u64f4\u5c55\u6027<\/strong>\uff1a\u8003\u616e\u672a\u4f86\u53ef\u80fd\u7684\u9700\u6c42\u8b8a\u5316\uff0c\u9078\u64c7\u4e00\u500b\u9748\u6d3b\u7684\u6578\u64da\u985e\u578b\u3002<\/li>\n<\/ul>\n<h2 id=\"%e7%b5%90%e8%ab%96-yAckIkjLbD\">\u7d50\u8ad6<\/h2>\n<p>\u5728\u6578\u64da\u5eab\u8a2d\u8a08\u4e2d\uff0c\u9078\u64c7\u5408\u9069\u7684\u91d1\u9322\u6578\u64da\u985e\u578b\u81f3\u95dc\u91cd\u8981\u3002\u6574\u6578\u578b\u3001\u6d6e\u9ede\u578b\u548c\u5341\u9032\u5236\u578b\u5404\u6709\u5176\u512a\u7f3a\u9ede\uff0c\u4f46\u5c0d\u65bc\u91d1\u9322\u7684\u7cbe\u78ba\u8868\u793a\u548c\u8a08\u7b97\uff0c\u5341\u9032\u5236\u578b\u7121\u7591\u662f\u6700\u4f73\u9078\u64c7\u3002\u901a\u904e\u5408\u7406\u7684\u6578\u64da\u985e\u578b\u9078\u64c7\uff0c\u53ef\u4ee5\u6709\u6548\u5730\u907f\u514d\u8a08\u7b97\u4e2d\u7684\u7cbe\u5ea6\u554f\u984c\uff0c\u78ba\u4fdd\u91d1\u878d\u61c9\u7528\u7684\u53ef\u9760\u6027\u3002<\/p>\n<p>\u5982\u9700\u4e86\u89e3\u66f4\u591a\u95dc\u65bc\u6578\u64da\u5eab\u548c\u5176\u4ed6\u6280\u8853\u89e3\u6c7a\u65b9\u6848\u7684\u4fe1\u606f\uff0c\u8acb\u8a2a\u554f\u6211\u5011\u7684\u7db2\u7ad9 <a href=\"https:\/\/server.hk\">Server.HK<\/a>\uff0c\u63a2\u7d22\u6211\u5011\u7684 <a href=\"https:\/\/server.hk\">VPS<\/a> \u548c <a href=\"https:\/\/server.hk\">\u9999\u6e2f\u4f3a\u670d\u5668<\/a> \u670d\u52d9\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u63a2\u8a0e\u6578\u64da\u5eab\u4e2d\u91d1\u9322\u7684\u6578\u64da\u985e\u578b\uff0c\u5305\u62ec\u6574\u6578\u3001\u6d6e\u9ede\u6578\u53ca\u8ca8\u5e63\u683c\u5f0f\uff0c\u5206\u6790\u5176\u9069\u7528\u6027\u8207\u6700\u4f73\u5be6\u8e10\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-188866","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/188866","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=188866"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/188866\/revisions"}],"predecessor-version":[{"id":188867,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/188866\/revisions\/188867"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=188866"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=188866"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=188866"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}