{"id":20341,"date":"2024-01-02T04:34:19","date_gmt":"2024-01-02T04:34:19","guid":{"rendered":"https:\/\/server.hk\/blog\/20341\/"},"modified":"2024-11-14T10:40:08","modified_gmt":"2024-11-14T02:40:08","slug":"postgresql-command-create-table","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/20341\/","title":{"rendered":"PostgreSQL \u547d\u4ee4\uff1aCREATE TABLE"},"content":{"rendered":"<h1 id=\"postgresql-command-create-table-PLHbdrITuX\">PostgreSQL \u547d\u4ee4\uff1aCREATE TABLE<\/h1>\n<p>PostgreSQL \u662f\u4e00\u500b\u529f\u80fd\u5f37\u5927\u7684\u958b\u6e90\u95dc\u806f\u5f0f\u6578\u64da\u5eab\u7ba1\u7406\u7cfb\u7d71\uff0c\u63d0\u4f9b\u5ee3\u6cdb\u7684\u529f\u80fd\u548c\u80fd\u529b\u3002<code>CREATE TABLE<\/code> \u662f PostgreSQL \u4e2d\u7684\u4e00\u500b\u57fa\u672c\u547d\u4ee4\uff0c\u5141\u8a31\u7528\u6236\u5728\u6578\u64da\u5eab\u4e2d\u5275\u5efa\u65b0\u7684\u8868\u683c\u3002\u5728\u672c\u6587\u4e2d\uff0c\u6211\u5011\u5c07\u63a2\u8a0e <code>CREATE TABLE<\/code> \u547d\u4ee4\u7684\u8a9e\u6cd5\u53ca\u5176\u4f7f\u7528\u65b9\u5f0f\u3002<\/p>\n<h2 id=\"syntax-PLHbdrITuX\">\u8a9e\u6cd5<\/h2>\n<p>\u4f7f\u7528 <code>CREATE TABLE<\/code> \u547d\u4ee4\u5275\u5efa\u8868\u7684\u57fa\u672c\u8a9e\u6cd5\u5982\u4e0b\uff1a<\/p>\n<pre><code>CREATE TABLE table_name (\r\n    column1 datatype constraint,\r\n    column2 datatype constraint,\r\n    ...\r\n);\r\n<\/code><\/pre>\n<p>\u6211\u5011\u4f86\u5206\u89e3\u4e00\u4e0b\u9019\u500b\u8a9e\u6cd5\uff1a<\/p>\n<ul>\n<li><code>CREATE TABLE<\/code>\uff1a\u9019\u662f\u7528\u65bc\u5275\u5efa\u65b0\u8868\u7684\u547d\u4ee4\u3002<\/li>\n<li><code>table_name<\/code>\uff1a\u9019\u662f\u60a8\u60f3\u5275\u5efa\u7684\u8868\u7684\u540d\u7a31\u3002<\/li>\n<li><code>column1, column2, ...<\/code>\uff1a\u9019\u4e9b\u662f\u8868\u4e2d\u6b04\u4f4d\u7684\u540d\u7a31\u3002<\/li>\n<li><code>datatype<\/code>\uff1a\u9019\u662f\u6bcf\u500b\u6b04\u4f4d\u7684\u6578\u64da\u985e\u578b\u3002<\/li>\n<li><code>constraint<\/code>\uff1a\u9019\u662f\u5b9a\u7fa9\u61c9\u7528\u65bc\u6b04\u4f4d\u7684\u7d04\u675f\u6216\u898f\u5247\u3002<\/li>\n<\/ul>\n<h2 id=\"example-PLHbdrITuX\">\u7bc4\u4f8b<\/h2>\n<p>\u5047\u8a2d\u6211\u5011\u8981\u5275\u5efa\u4e00\u500b\u540d\u70ba &#8220;employees&#8221; \u7684\u8868\uff0c\u4e26\u5305\u542b\u4ee5\u4e0b\u6b04\u4f4d\uff1a<\/p>\n<ul>\n<li><code>id<\/code>\uff1a\u6574\u6578\u6578\u64da\u985e\u578b\uff0c\u4e3b\u9375<\/li>\n<li><code>name<\/code>\uff1a\u53ef\u8b8a\u9577\u5ea6\u5b57\u7b26\u6578\u64da\u985e\u578b<\/li>\n<li><code>age<\/code>\uff1a\u6574\u6578\u6578\u64da\u985e\u578b<\/li>\n<li><code>salary<\/code>\uff1a\u6578\u5b57\u6578\u64da\u985e\u578b<\/li>\n<\/ul>\n<p>\u5c0d\u65bc\u9019\u500b\u7bc4\u4f8b\uff0c<code>CREATE TABLE<\/code> \u547d\u4ee4\u5c07\u5982\u4e0b\u6240\u793a\uff1a<\/p>\n<pre><code>CREATE TABLE employees (\r\n    id serial PRIMARY KEY,\r\n    name varchar(100),\r\n    age integer,\r\n    salary numeric(10,2)\r\n);\r\n<\/code><\/pre>\n<p>\u5728\u9019\u500b\u7bc4\u4f8b\u4e2d\uff0c\u6211\u5011\u5c0d <code>id<\/code> \u6b04\u4f4d\u4f7f\u7528\u4e86 <code>serial<\/code> \u6578\u64da\u985e\u578b\uff0c\u9019\u6703\u70ba\u6bcf\u4e00\u884c\u81ea\u52d5\u751f\u6210\u552f\u4e00\u7684\u503c\u3002<code>PRIMARY KEY<\/code> \u7d04\u675f\u78ba\u4fdd <code>id<\/code> \u6b04\u4f4d\u662f\u552f\u4e00\u7684\uff0c\u4e26\u4f5c\u70ba\u8868\u7684\u4e3b\u9375\u3002<\/p>\n<h2 id=\"conclusion-PLHbdrITuX\">\u7d50\u8ad6<\/h2>\n<p><code>CREATE TABLE<\/code> \u547d\u4ee4\u662f PostgreSQL \u4e2d\u7684\u4e00\u500b\u57fa\u672c\u547d\u4ee4\uff0c\u5141\u8a31\u7528\u6236\u5728\u6578\u64da\u5eab\u4e2d\u5275\u5efa\u65b0\u7684\u8868\u683c\u3002\u901a\u904e\u4e86\u89e3\u6b64\u547d\u4ee4\u7684\u8a9e\u6cd5\u53ca\u5176\u4f7f\u7528\u65b9\u5f0f\uff0c\u60a8\u53ef\u4ee5\u6709\u6548\u5730\u5275\u5efa\u8868\u4e26\u5b9a\u7fa9\u6b04\u4f4d\u548c\u7d04\u675f\u3002PostgreSQL \u7684\u9748\u6d3b\u6027\u548c\u7a69\u5065\u6027\u4f7f\u5176\u6210\u70ba\u7ba1\u7406\u95dc\u806f\u6578\u64da\u5eab\u7684\u6975\u4f73\u9078\u64c7\u3002<\/p>\n<p>\u5982\u9700\u66f4\u591a\u6709\u95dc VPS \u4e3b\u6a5f\u89e3\u6c7a\u65b9\u6848\u7684\u8cc7\u8a0a\uff0c\u8acb\u8a2a\u554f <a href=\"https:\/\/server.hk\">Server.HK<\/a>\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>PostgreSQL \u547d\u4ee4\uff1aCR&#46;&#46;&#46;<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[4924],"tags":[],"class_list":["post-20341","post","type-post","status-publish","format-standard","hentry","category-setup-tutorials"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/20341","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=20341"}],"version-history":[{"count":2,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/20341\/revisions"}],"predecessor-version":[{"id":24421,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/20341\/revisions\/24421"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=20341"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=20341"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=20341"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}