{"id":179252,"date":"2024-11-09T00:16:33","date_gmt":"2024-11-08T16:16:33","guid":{"rendered":"https:\/\/server.hk\/cnblog\/179252\/"},"modified":"2024-11-09T00:16:34","modified_gmt":"2024-11-08T16:16:34","slug":"%e5%a6%82%e4%bd%95%e9%81%b8%e6%93%87%e5%90%88%e9%81%a9%e7%9a%84%e6%95%b8%e6%93%9a%e5%ba%ab%e6%95%b8%e6%93%9a%e9%a1%9e%e5%9e%8b%ef%bc%9f-%e6%95%b8%e6%93%9a%e5%ba%ab%e6%95%b8%e6%93%9a%e9%a1%9e%e5%9e%8b","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/179252\/","title":{"rendered":"\u5982\u4f55\u9078\u64c7\u5408\u9069\u7684\u6578\u64da\u5eab\u6578\u64da\u985e\u578b\uff1f (\u6578\u64da\u5eab\u6578\u64da\u985e\u578b\u600e\u9ebc\u9078)"},"content":{"rendered":"<h1 id=\"%e5%a6%82%e4%bd%95%e9%81%b8%e6%93%87%e5%90%88%e9%81%a9%e7%9a%84%e6%95%b8%e6%93%9a%e5%ba%ab%e6%95%b8%e6%93%9a%e9%a1%9e%e5%9e%8b%ef%bc%9f-AUcjOReaCc\">\u5982\u4f55\u9078\u64c7\u5408\u9069\u7684\u6578\u64da\u5eab\u6578\u64da\u985e\u578b\uff1f<\/h1>\n<p>\u5728\u8a2d\u8a08\u6578\u64da\u5eab\u6642\uff0c\u9078\u64c7\u5408\u9069\u7684\u6578\u64da\u985e\u578b\u662f\u81f3\u95dc\u91cd\u8981\u7684\u3002\u6578\u64da\u985e\u578b\u4e0d\u50c5\u5f71\u97ff\u6578\u64da\u7684\u5b58\u5132\u65b9\u5f0f\uff0c\u9084\u6703\u5f71\u97ff\u67e5\u8a62\u6027\u80fd\u3001\u6578\u64da\u5b8c\u6574\u6027\u53ca\u61c9\u7528\u7a0b\u5e8f\u7684\u53ef\u64f4\u5c55\u6027\u3002\u672c\u6587\u5c07\u63a2\u8a0e\u5982\u4f55\u9078\u64c7\u5408\u9069\u7684\u6578\u64da\u5eab\u6578\u64da\u985e\u578b\uff0c\u4e26\u63d0\u4f9b\u4e00\u4e9b\u5be6\u7528\u7684\u5efa\u8b70\u548c\u793a\u4f8b\u3002<\/p>\n<h2 id=\"%e6%95%b8%e6%93%9a%e5%ba%ab%e6%95%b8%e6%93%9a%e9%a1%9e%e5%9e%8b%e7%9a%84%e5%9f%ba%e6%9c%ac%e6%a6%82%e5%bf%b5-AUcjOReaCc\">\u6578\u64da\u5eab\u6578\u64da\u985e\u578b\u7684\u57fa\u672c\u6982\u5ff5<\/h2>\n<p>\u6578\u64da\u5eab\u4e2d\u7684\u6578\u64da\u985e\u578b\u4e3b\u8981\u5206\u70ba\u5e7e\u500b\u985e\u5225\uff0c\u5305\u62ec\u6574\u6578\u3001\u6d6e\u9ede\u6578\u3001\u5b57\u7b26\u3001\u65e5\u671f\u548c\u5e03\u723e\u503c\u7b49\u3002\u6bcf\u7a2e\u6578\u64da\u985e\u578b\u90fd\u6709\u5176\u7279\u5b9a\u7684\u7528\u9014\u548c\u7279\u6027\uff0c\u9078\u64c7\u4e0d\u7576\u53ef\u80fd\u5c0e\u81f4\u6027\u80fd\u554f\u984c\u6216\u6578\u64da\u4e0d\u4e00\u81f4\u3002<\/p>\n<h3 id=\"1-%e6%95%b4%e6%95%b8%e9%a1%9e%e5%9e%8b-AUcjOReaCc\">1. \u6574\u6578\u985e\u578b<\/h3>\n<p>\u6574\u6578\u985e\u578b\u7528\u65bc\u5b58\u5132\u6c92\u6709\u5c0f\u6578\u7684\u6578\u5b57\u3002\u6839\u64da\u9700\u8981\u7684\u6578\u5b57\u7bc4\u570d\uff0c\u53ef\u4ee5\u9078\u64c7\u4e0d\u540c\u5927\u5c0f\u7684\u6574\u6578\u985e\u578b\uff0c\u4f8b\u5982\uff1a<\/p>\n<ul>\n<li><code>TINYINT<\/code>\uff1a\u7bc4\u570d\u5f9e -128 \u5230 127\uff08\u6216 0 \u5230 255\uff09<\/li>\n<li><code>SMALLINT<\/code>\uff1a\u7bc4\u570d\u5f9e -32,768 \u5230 32,767<\/li>\n<li><code>INT<\/code>\uff1a\u7bc4\u570d\u5f9e -2,147,483,648 \u5230 2,147,483,647<\/li>\n<li><code>BIGINT<\/code>\uff1a\u7bc4\u570d\u5f9e -9,223,372,036,854,775,808 \u5230 9,223,372,036,854,775,807<\/li>\n<\/ul>\n<p>\u9078\u64c7\u6574\u6578\u985e\u578b\u6642\uff0c\u61c9\u6839\u64da\u5be6\u969b\u9700\u6c42\u9078\u64c7\u5408\u9069\u7684\u5927\u5c0f\uff0c\u4ee5\u7bc0\u7701\u5b58\u5132\u7a7a\u9593\u3002<\/p>\n<h3 id=\"2-%e6%b5%ae%e9%bb%9e%e6%95%b8%e9%a1%9e%e5%9e%8b-AUcjOReaCc\">2. \u6d6e\u9ede\u6578\u985e\u578b<\/h3>\n<p>\u6d6e\u9ede\u6578\u985e\u578b\u7528\u65bc\u5b58\u5132\u5e36\u6709\u5c0f\u6578\u7684\u6578\u5b57\u3002\u5e38\u898b\u7684\u6d6e\u9ede\u6578\u985e\u578b\u5305\u62ec\uff1a<\/p>\n<ul>\n<li><code>FLOAT<\/code>\uff1a\u55ae\u7cbe\u5ea6\u6d6e\u9ede\u6578<\/li>\n<li><code>DOUBLE<\/code>\uff1a\u96d9\u7cbe\u5ea6\u6d6e\u9ede\u6578<\/li>\n<li><code>DECIMAL<\/code>\uff1a\u7cbe\u78ba\u7684\u5b9a\u9ede\u6578\uff0c\u9069\u5408\u5b58\u5132\u91d1\u984d\u7b49\u9700\u8981\u9ad8\u7cbe\u5ea6\u7684\u6578\u64da<\/li>\n<\/ul>\n<p>\u5728\u9078\u64c7\u6d6e\u9ede\u6578\u985e\u578b\u6642\uff0c\u61c9\u8003\u616e\u6578\u64da\u7684\u7cbe\u5ea6\u8981\u6c42\uff0c\u7279\u5225\u662f\u5728\u91d1\u878d\u61c9\u7528\u4e2d\uff0c\u4f7f\u7528 <code>DECIMAL<\/code> \u985e\u578b\u53ef\u4ee5\u907f\u514d\u6d6e\u9ede\u6578\u904b\u7b97\u5e36\u4f86\u7684\u8aa4\u5dee\u3002<\/p>\n<h3 id=\"3-%e5%ad%97%e7%ac%a6%e9%a1%9e%e5%9e%8b-AUcjOReaCc\">3. \u5b57\u7b26\u985e\u578b<\/h3>\n<p>\u5b57\u7b26\u985e\u578b\u7528\u65bc\u5b58\u5132\u6587\u672c\u6578\u64da\u3002\u5e38\u898b\u7684\u5b57\u7b26\u985e\u578b\u5305\u62ec\uff1a<\/p>\n<ul>\n<li><code>CHAR(n)<\/code>\uff1a\u56fa\u5b9a\u9577\u5ea6\u7684\u5b57\u7b26\u4e32<\/li>\n<li><code>VARCHAR(n)<\/code>\uff1a\u53ef\u8b8a\u9577\u5ea6\u7684\u5b57\u7b26\u4e32<\/li>\n<li><code>TEXT<\/code>\uff1a\u9577\u6587\u672c\u6578\u64da<\/li>\n<\/ul>\n<p>\u5728\u9078\u64c7\u5b57\u7b26\u985e\u578b\u6642\uff0c\u61c9\u6839\u64da\u6578\u64da\u7684\u9577\u5ea6\u548c\u7279\u6027\u9032\u884c\u9078\u64c7\u3002<code>VARCHAR<\/code> \u985e\u578b\u5728\u5b58\u5132\u8b8a\u9577\u5b57\u7b26\u4e32\u6642\u66f4\u70ba\u9ad8\u6548\uff0c\u800c <code>CHAR<\/code> \u985e\u578b\u5247\u9069\u5408\u5b58\u5132\u56fa\u5b9a\u9577\u5ea6\u7684\u6578\u64da\u3002<\/p>\n<h3 id=\"4-%e6%97%a5%e6%9c%9f%e5%92%8c%e6%99%82%e9%96%93%e9%a1%9e%e5%9e%8b-AUcjOReaCc\">4. \u65e5\u671f\u548c\u6642\u9593\u985e\u578b<\/h3>\n<p>\u65e5\u671f\u548c\u6642\u9593\u985e\u578b\u7528\u65bc\u5b58\u5132\u6642\u9593\u76f8\u95dc\u7684\u6578\u64da\u3002\u5e38\u898b\u7684\u985e\u578b\u5305\u62ec\uff1a<\/p>\n<ul>\n<li><code>DATE<\/code>\uff1a\u5b58\u5132\u65e5\u671f\uff08\u5e74\u3001\u6708\u3001\u65e5\uff09<\/li>\n<li><code>TIME<\/code>\uff1a\u5b58\u5132\u6642\u9593\uff08\u6642\u3001\u5206\u3001\u79d2\uff09<\/li>\n<li><code>DATETIME<\/code>\uff1a\u5b58\u5132\u65e5\u671f\u548c\u6642\u9593<\/li>\n<li><code>TIMESTAMP<\/code>\uff1a\u5b58\u5132\u81ea1970\u5e741\u67081\u65e5\u4ee5\u4f86\u7684\u79d2\u6578<\/li>\n<\/ul>\n<p>\u9078\u64c7\u65e5\u671f\u548c\u6642\u9593\u985e\u578b\u6642\uff0c\u61c9\u8003\u616e\u6578\u64da\u7684\u4f7f\u7528\u5834\u666f\uff0c\u4f8b\u5982\uff0c\u82e5\u9700\u8981\u8a18\u9304\u4e8b\u4ef6\u7684\u767c\u751f\u6642\u9593\uff0c\u5247 <code>DATETIME<\/code> \u6216 <code>TIMESTAMP<\/code> \u662f\u5408\u9069\u7684\u9078\u64c7\u3002<\/p>\n<h3 id=\"5-%e5%b8%83%e7%88%be%e9%a1%9e%e5%9e%8b-AUcjOReaCc\">5. \u5e03\u723e\u985e\u578b<\/h3>\n<p>\u5e03\u723e\u985e\u578b\u7528\u65bc\u5b58\u5132\u771f\u6216\u5047\u7684\u503c\uff0c\u901a\u5e38\u7528\u65bc\u8868\u793a\u72c0\u614b\u6216\u958b\u95dc\u3002\u5927\u591a\u6578\u6578\u64da\u5eab\u7cfb\u7d71\u63d0\u4f9b <code>BOOLEAN<\/code> \u985e\u578b\uff0c\u901a\u5e38\u4ee5 0\uff08\u5047\uff09\u548c 1\uff08\u771f\uff09\u4f86\u8868\u793a\u3002<\/p>\n<h2 id=\"%e9%81%b8%e6%93%87%e6%95%b8%e6%93%9a%e9%a1%9e%e5%9e%8b%e7%9a%84%e6%9c%80%e4%bd%b3%e5%af%a6%e8%b8%90-AUcjOReaCc\">\u9078\u64c7\u6578\u64da\u985e\u578b\u7684\u6700\u4f73\u5be6\u8e10<\/h2>\n<ul>\n<li><strong>\u6839\u64da\u9700\u6c42\u9078\u64c7\uff1a<\/strong>\u5728\u9078\u64c7\u6578\u64da\u985e\u578b\u6642\uff0c\u61c9\u6839\u64da\u5be6\u969b\u9700\u6c42\u9032\u884c\u9078\u64c7\uff0c\u907f\u514d\u4f7f\u7528\u904e\u5927\u7684\u6578\u64da\u985e\u578b\u3002<\/li>\n<li><strong>\u8003\u616e\u6027\u80fd\uff1a<\/strong>\u4e0d\u540c\u7684\u6578\u64da\u985e\u578b\u5728\u67e5\u8a62\u6027\u80fd\u4e0a\u6709\u5dee\u7570\uff0c\u61c9\u9078\u64c7\u6027\u80fd\u6700\u4f73\u7684\u985e\u578b\u3002<\/li>\n<li><strong>\u4fdd\u6301\u4e00\u81f4\u6027\uff1a<\/strong>\u5728\u540c\u4e00\u8868\u4e2d\uff0c\u61c9\u4fdd\u6301\u6578\u64da\u985e\u578b\u7684\u4e00\u81f4\u6027\uff0c\u4ee5\u63d0\u9ad8\u6578\u64da\u7684\u53ef\u8b80\u6027\u548c\u7dad\u8b77\u6027\u3002<\/li>\n<li><strong>\u9810\u7559\u64f4\u5c55\u7a7a\u9593\uff1a<\/strong>\u5728\u8a2d\u8a08\u6578\u64da\u5eab\u6642\uff0c\u8003\u616e\u672a\u4f86\u53ef\u80fd\u7684\u64f4\u5c55\u9700\u6c42\uff0c\u9078\u64c7\u5408\u9069\u7684\u6578\u64da\u985e\u578b\u3002<\/li>\n<\/ul>\n<h2 id=\"%e7%b8%bd%e7%b5%90-AUcjOReaCc\">\u7e3d\u7d50<\/h2>\n<p>\u9078\u64c7\u5408\u9069\u7684\u6578\u64da\u5eab\u6578\u64da\u985e\u578b\u5c0d\u65bc\u6578\u64da\u7684\u5b58\u5132\u548c\u8655\u7406\u81f3\u95dc\u91cd\u8981\u3002\u901a\u904e\u4e86\u89e3\u4e0d\u540c\u6578\u64da\u985e\u578b\u7684\u7279\u6027\u548c\u7528\u9014\uff0c\u60a8\u53ef\u4ee5\u66f4\u6709\u6548\u5730\u8a2d\u8a08\u6578\u64da\u5eab\u7d50\u69cb\uff0c\u63d0\u5347\u61c9\u7528\u7a0b\u5e8f\u7684\u6027\u80fd\u548c\u53ef\u64f4\u5c55\u6027\u3002\u5982\u679c\u60a8\u9700\u8981\u9032\u4e00\u6b65\u4e86\u89e3\u5982\u4f55\u9078\u64c7\u5408\u9069\u7684 <a href=\"https:\/\/server.hk\">VPS<\/a> \u6216\u5176\u4ed6\u6578\u64da\u5eab\u89e3\u6c7a\u65b9\u6848\uff0c\u8acb\u8a2a\u554f\u6211\u5011\u7684\u7db2\u7ad9\u4ee5\u7372\u53d6\u66f4\u591a\u4fe1\u606f\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u4e86\u89e3\u5982\u4f55\u6839\u64da\u9700\u6c42\u3001\u6027\u80fd\u548c\u6578\u64da\u7279\u6027\u9078\u64c7\u5408\u9069\u7684\u6578\u64da\u5eab\u6578\u64da\u985e\u578b\uff0c\u63d0\u5347\u6578\u64da\u7ba1\u7406\u6548\u7387\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-179252","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/179252","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=179252"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/179252\/revisions"}],"predecessor-version":[{"id":179253,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/179252\/revisions\/179253"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=179252"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=179252"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=179252"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}