{"id":5700,"date":"2024-11-14T09:20:21","date_gmt":"2024-11-14T01:20:21","guid":{"rendered":"https:\/\/fwq.ai\/blog\/5700\/"},"modified":"2024-11-14T09:20:21","modified_gmt":"2024-11-14T01:20:21","slug":"sql%e5%88%9b%e5%bb%ba%e8%a1%a8%e6%a0%bc%e6%80%8e%e4%b9%88%e5%86%99","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/5700\/","title":{"rendered":"sql\u521b\u5efa\u8868\u683c\u600e\u4e48\u5199"},"content":{"rendered":"

\n sql \u4e2d\u521b\u5efa\u8868\u7684\u8bed\u6cd5\u4e3a\uff1acreate table table_name (column1 data_type, column2 data_type, …)\uff0c\u5176\u4e2d table_name \u4e3a\u8868\u540d\uff0ccolumn1\u3001column2 \u4e3a\u5217\u540d\uff0cdata_type \u4e3a\u5217\u7684\u6570\u636e\u7c7b\u578b\u3002\u53ef\u4f7f\u7528 primary key \u6307\u5b9a\u4e3b\u952e\uff0cforeign key \u521b\u5efa\u5916\u952e\uff0cunique \u786e\u4fdd\u503c\u552f\u4e00\u3002\n<\/p><\/blockquote>\n

\"sql\u521b\u5efa\u8868\u683c\u600e\u4e48\u5199\u63d2\u56fe\"<\/p>\n

SQL \u4e2d\u5982\u4f55\u521b\u5efa\u8868\u683c<\/strong><\/p>\n

\u521b\u5efa\u65b0\u8868\u683c\u662f SQL \u4e2d\u4e00\u9879\u57fa\u672c\u64cd\u4f5c\uff0c\u7528\u4e8e\u5b58\u50a8\u548c\u7ba1\u7406\u6570\u636e\u3002\u4ee5\u4e0b\u662f\u521b\u5efa\u8868\u7684\u57fa\u672c\u8bed\u6cd5\uff1a<\/p>\n

CREATE TABLE table_name (\n  column1 data_type,\n  column2 data_type,\n  ...\n);<\/pre>\n
  \u767b\u5f55\u540e\u590d\u5236   <\/p>\n
\u5176\u4e2d\uff1a<\/p>\n
    \n
  •  table_name\uff1a<\/strong>\u8981\u521b\u5efa\u7684\u8868\u7684\u540d\u79f0\u3002<\/li>\n
  •  column1\u3001column2\u3001…\uff1a<\/strong>\u8981\u521b\u5efa\u7684\u5217\u7684\u540d\u79f0\u3002<\/li>\n
  •  data_type\uff1a<\/strong>\u6307\u5b9a\u5217\u7684\u6570\u636e\u7c7b\u578b\uff08\u5982 INT\u3001VARCHAR\u3001DATE \u7b49\uff09\u3002<\/li>\n<\/ul>\n
    \u793a\u4f8b\uff1a<\/strong><\/p>\n
    \u8981\u521b\u5efa\u4e00\u4e2a\u540d\u4e3a “customers” \u7684\u8868\uff0c\u5176\u4e2d\u5305\u542b “id”\u3001”name” \u548c “email” \u5217\uff0c\u53ef\u4ee5\u6267\u884c\u4ee5\u4e0b\u67e5\u8be2\uff1a<\/p>\n
    CREATE TABLE customers (\n  id INT NOT NULL AUTO_INCREMENT,\n  name VARCHAR(255),\n  email VARCHAR(255)\n);<\/pre>\n
      \u767b\u5f55\u540e\u590d\u5236   <\/p>\n
    \u63d0\u793a\uff1a<\/strong><\/p>\n
      \n
    • \u8868\u540d\u548c\u5217\u540d\u5bf9\u5927\u5c0f\u5199\u654f\u611f\u3002<\/li>\n
    •  NOT NULL<\/strong> \u7ea6\u675f\u53ef\u786e\u4fdd\u5217\u4e0d\u5305\u542b\u7a7a\u503c\u3002<\/li>\n
    •  AUTO_INCREMENT<\/strong> \u5173\u952e\u5b57\u4f1a\u81ea\u52a8\u4e3a “id” \u5217\u751f\u6210\u552f\u4e00\u6807\u8bc6\u7b26\u3002<\/li>\n<\/ul>\n
      \u5176\u4ed6\u9009\u9879\uff1a<\/strong><\/p>\n
      \u9664\u4e86\u6307\u5b9a\u5217\u540d\u548c\u6570\u636e\u7c7b\u578b\u5916\uff0c\u8fd8\u53ef\u4ee5\u5728\u521b\u5efa\u8868\u65f6\u4f7f\u7528\u5176\u4ed6\u9009\u9879\uff0c\u4f8b\u5982\uff1a<\/p>\n
        \n
      •  \u4e3b\u952e\uff1a<\/strong>\u6307\u5b9a\u552f\u4e00\u6807\u8bc6\u8868\u7684\u884c\u7684\u5217\u6216\u5217\u96c6\u3002\u4f7f\u7528 PRIMARY KEY<\/strong> \u5173\u952e\u5b57\u3002<\/li>\n
      •  \u5916\u952e\uff1a<\/strong>\u521b\u5efa\u6307\u5411\u53e6\u4e00\u8868\u4e2d\u7684\u5217\u7684\u5f15\u7528\u3002\u4f7f\u7528 FOREIGN KEY<\/strong> \u5173\u952e\u5b57\u3002<\/li>\n
      •  \u552f\u4e00\u7ea6\u675f\uff1a<\/strong>\u786e\u4fdd\u5217\u4e2d\u7684\u503c\u662f\u552f\u4e00\u7684\u3002\u4f7f\u7528 UNIQUE<\/strong> \u5173\u952e\u5b57\u3002<\/li>\n<\/ul>\n
        \u901a\u8fc7\u7ed3\u5408\u8fd9\u4e9b\u9009\u9879\uff0c\u60a8\u53ef\u4ee5\u521b\u5efa\u6ee1\u8db3\u7279\u5b9a\u9700\u6c42\u7684\u81ea\u5b9a\u4e49\u8868\u3002<\/p>\n
        \u4ee5\u4e0a\u5c31\u662fsql\u521b\u5efa\u8868\u683c\u600e\u4e48\u5199\u7684\u8be6\u7ec6\u5185\u5bb9\uff0c\u66f4\u591a\u8bf7\u5173\u6ce8\u7c73\u4e91\u7f51\u5176\u5b83\u76f8\u5173\u6587\u7ae0\uff01<\/p>\n","protected":false},"excerpt":{"rendered":"
        sql \u4e2d\u521b\u5efa\u8868\u7684\u8bed\u6cd5\u4e3a\uff1acreate table table_name (column1 data_type, column2 data_type, …)\uff0c\u5176\u4e2d table_name \u4e3a\u8868\u540d\uff0ccolumn1\u3001column2 \u4e3a\u5217\u540d\uff0cdata_type \u4e3a\u5217\u7684\u6570\u636e\u7c7b\u578b\u3002\u53ef\u4f7f\u7528 primary key \u6307\u5b9a\u4e3b\u952e\uff0cforeign key \u521b\u5efa\u5916\u952e\uff0cunique \u786e\u4fdd\u503c\u552f\u4e00\u3002 SQL \u4e2d\u5982\u4f55\u521b\u5efa\u8868\u683c \u521b\u5efa\u65b0\u8868\u683c\u662f SQL \u4e2d\u4e00\u9879\u57fa\u672c\u64cd\u4f5c\uff0c\u7528\u4e8e\u5b58\u50a8\u548c\u7ba1\u7406\u6570\u636e\u3002\u4ee5\u4e0b\u662f\u521b\u5efa\u8868\u7684\u57fa\u672c\u8bed\u6cd5\uff1a CREATE TABLE table_name ( column1 data_type, column2 data_type, … ); \u767b\u5f55\u540e\u590d\u5236 \u5176\u4e2d\uff1a table_name\uff1a\u8981\u521b\u5efa\u7684\u8868\u7684\u540d\u79f0\u3002 column1\u3001column2\u3001…\uff1a\u8981\u521b\u5efa\u7684\u5217\u7684\u540d\u79f0\u3002 data_type\uff1a\u6307\u5b9a\u5217\u7684\u6570\u636e\u7c7b\u578b\uff08\u5982 INT\u3001VARCHAR\u3001DATE \u7b49\uff09\u3002 \u793a\u4f8b\uff1a \u8981\u521b\u5efa\u4e00\u4e2a\u540d\u4e3a “customers” \u7684\u8868\uff0c\u5176\u4e2d\u5305\u542b “id”\u3001”name” \u548c “email” \u5217\uff0c\u53ef\u4ee5\u6267\u884c\u4ee5\u4e0b\u67e5\u8be2\uff1a CREATE TABLE customers ( id INT […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[16],"tags":[],"class_list":["post-5700","post","type-post","status-publish","format-standard","hentry","category-16"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/5700","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/comments?post=5700"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/5700\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=5700"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=5700"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=5700"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}