{"id":179708,"date":"2024-11-09T04:08:17","date_gmt":"2024-11-08T20:08:17","guid":{"rendered":"https:\/\/server.hk\/cnblog\/179708\/"},"modified":"2024-11-09T04:08:18","modified_gmt":"2024-11-08T20:08:18","slug":"%e5%a6%82%e4%bd%95%e5%9c%a8-sql-%e6%95%b8%e6%93%9a%e5%ba%ab%e4%b8%ad%e6%ad%a3%e7%a2%ba%e6%8f%92%e5%85%a5%e6%95%b8%e6%93%9a%e5%92%8c%e6%99%82%e9%96%93%e8%a8%98%e9%8c%84-sql-%e6%95%b8%e6%93%9a","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/179708\/","title":{"rendered":"\u5982\u4f55\u5728 SQL \u6578\u64da\u5eab\u4e2d\u6b63\u78ba\u63d2\u5165\u6578\u64da\u548c\u6642\u9593\u8a18\u9304? (sql \u6578\u64da\u5eab\u63d2\u5165\u6642\u9593)"},"content":{"rendered":"<h1 id=\"%e5%a6%82%e4%bd%95%e5%9c%a8-sql-%e6%95%b8%e6%93%9a%e5%ba%ab%e4%b8%ad%e6%ad%a3%e7%a2%ba%e6%8f%92%e5%85%a5%e6%95%b8%e6%93%9a%e5%92%8c%e6%99%82%e9%96%93%e8%a8%98%e9%8c%84-zuuZaCRbWK\">\u5982\u4f55\u5728 SQL \u6578\u64da\u5eab\u4e2d\u6b63\u78ba\u63d2\u5165\u6578\u64da\u548c\u6642\u9593\u8a18\u9304?<\/h1>\n<p>\u5728\u73fe\u4ee3\u61c9\u7528\u7a0b\u5e8f\u4e2d\uff0c\u6578\u64da\u5eab\u7684\u4f7f\u7528\u5df2\u7d93\u6210\u70ba\u4e0d\u53ef\u6216\u7f3a\u7684\u4e00\u90e8\u5206\u3002SQL\uff08\u7d50\u69cb\u5316\u67e5\u8a62\u8a9e\u8a00\uff09\u662f\u7528\u65bc\u7ba1\u7406\u548c\u64cd\u4f5c\u95dc\u4fc2\u578b\u6578\u64da\u5eab\u7684\u6a19\u6e96\u8a9e\u8a00\u3002\u5728\u9019\u7bc7\u6587\u7ae0\u4e2d\uff0c\u6211\u5011\u5c07\u63a2\u8a0e\u5982\u4f55\u5728 SQL \u6578\u64da\u5eab\u4e2d\u6b63\u78ba\u63d2\u5165\u6578\u64da\u548c\u6642\u9593\u8a18\u9304\uff0c\u7279\u5225\u662f\u91dd\u5c0d\u65e5\u671f\u548c\u6642\u9593\u7684\u8655\u7406\u3002<\/p>\n<h2 id=\"1-sql-%e6%95%b8%e6%93%9a%e9%a1%9e%e5%9e%8b%e6%a6%82%e8%bf%b0-zuuZaCRbWK\">1. SQL \u6578\u64da\u985e\u578b\u6982\u8ff0<\/h2>\n<p>\u5728\u63d2\u5165\u6578\u64da\u4e4b\u524d\uff0c\u4e86\u89e3 SQL \u4e2d\u7684\u6578\u64da\u985e\u578b\u662f\u975e\u5e38\u91cd\u8981\u7684\u3002\u5c0d\u65bc\u65e5\u671f\u548c\u6642\u9593\uff0cSQL \u63d0\u4f9b\u4e86\u5e7e\u7a2e\u6578\u64da\u985e\u578b\uff1a<\/p>\n<ul>\n<li><strong>DATE<\/strong>\uff1a\u7528\u65bc\u5b58\u5132\u65e5\u671f\uff08\u5e74\u3001\u6708\u3001\u65e5\uff09\u3002<\/li>\n<li><strong>TIME<\/strong>\uff1a\u7528\u65bc\u5b58\u5132\u6642\u9593\uff08\u6642\u3001\u5206\u3001\u79d2\uff09\u3002<\/li>\n<li><strong>DATETIME<\/strong>\uff1a\u7528\u65bc\u5b58\u5132\u65e5\u671f\u548c\u6642\u9593\u7684\u7d44\u5408\u3002<\/li>\n<li><strong>TIMESTAMP<\/strong>\uff1a\u985e\u4f3c\u65bc DATETIME\uff0c\u4f46\u901a\u5e38\u7528\u65bc\u8a18\u9304\u4e8b\u4ef6\u7684\u6642\u9593\u6233\u3002<\/li>\n<li><strong>YEAR<\/strong>\uff1a\u7528\u65bc\u5b58\u5132\u5e74\u4efd\u3002<\/li>\n<\/ul>\n<h2 id=\"2-%e6%8f%92%e5%85%a5%e6%95%b8%e6%93%9a%e7%9a%84%e5%9f%ba%e6%9c%ac%e8%aa%9e%e6%b3%95-zuuZaCRbWK\">2. \u63d2\u5165\u6578\u64da\u7684\u57fa\u672c\u8a9e\u6cd5<\/h2>\n<p>\u5728 SQL \u4e2d\uff0c\u63d2\u5165\u6578\u64da\u7684\u57fa\u672c\u8a9e\u6cd5\u5982\u4e0b\uff1a<\/p>\n<pre><code>INSERT INTO \u8868\u540d (\u52171, \u52172, \u52173, ...)\nVALUES (\u503c1, \u503c2, \u503c3, ...);<\/code><\/pre>\n<p>\u4f8b\u5982\uff0c\u5047\u8a2d\u6211\u5011\u6709\u4e00\u500b\u540d\u70ba <code>events<\/code> \u7684\u8868\uff0c\u5305\u542b <code>event_name<\/code> \u548c <code>event_date<\/code> \u5169\u500b\u5217\uff0c\u6211\u5011\u53ef\u4ee5\u9019\u6a23\u63d2\u5165\u6578\u64da\uff1a<\/p>\n<pre><code>INSERT INTO events (event_name, event_date)\nVALUES ('\u65b0\u5e74\u6d3e\u5c0d', '2023-01-01');<\/code><\/pre>\n<h2 id=\"3-%e6%ad%a3%e7%a2%ba%e6%8f%92%e5%85%a5%e6%97%a5%e6%9c%9f%e5%92%8c%e6%99%82%e9%96%93-zuuZaCRbWK\">3. \u6b63\u78ba\u63d2\u5165\u65e5\u671f\u548c\u6642\u9593<\/h2>\n<p>\u5728\u63d2\u5165\u65e5\u671f\u548c\u6642\u9593\u6642\uff0c\u5fc5\u9808\u9075\u5faa\u7279\u5b9a\u7684\u683c\u5f0f\u3002\u901a\u5e38\uff0cSQL \u4f7f\u7528 <code>YYYY-MM-DD<\/code> \u683c\u5f0f\u4f86\u8868\u793a\u65e5\u671f\uff0c\u4f7f\u7528 <code>HH:MM:SS<\/code> \u683c\u5f0f\u4f86\u8868\u793a\u6642\u9593\u3002\u4ee5\u4e0b\u662f\u4e00\u4e9b\u63d2\u5165\u65e5\u671f\u548c\u6642\u9593\u7684\u793a\u4f8b\uff1a<\/p>\n<pre><code>INSERT INTO events (event_name, event_date)\nVALUES ('\u6703\u8b70', '2023-10-15 14:30:00');<\/code><\/pre>\n<p>\u5728\u9019\u500b\u4f8b\u5b50\u4e2d\uff0c\u6211\u5011\u63d2\u5165\u4e86\u4e00\u500b\u4e8b\u4ef6\u540d\u7a31\u70ba\u300c\u6703\u8b70\u300d\u7684\u8a18\u9304\uff0c\u4e26\u6307\u5b9a\u4e86\u4e8b\u4ef6\u7684\u65e5\u671f\u548c\u6642\u9593\u3002<\/p>\n<h2 id=\"4-%e4%bd%bf%e7%94%a8%e7%95%b6%e5%89%8d%e6%99%82%e9%96%93%e6%88%b3-zuuZaCRbWK\">4. \u4f7f\u7528\u7576\u524d\u6642\u9593\u6233<\/h2>\n<p>\u5728\u67d0\u4e9b\u60c5\u6cc1\u4e0b\uff0c\u60a8\u53ef\u80fd\u5e0c\u671b\u63d2\u5165\u7576\u524d\u7684\u65e5\u671f\u548c\u6642\u9593\u3002\u9019\u53ef\u4ee5\u901a\u904e\u4f7f\u7528 SQL \u7684 <code>NOW()<\/code> \u51fd\u6578\u4f86\u5be6\u73fe\uff1a<\/p>\n<pre><code>INSERT INTO events (event_name, event_date)\nVALUES ('\u81ea\u52d5\u8a18\u9304', NOW());<\/code><\/pre>\n<p>\u9019\u6a23\uff0c\u7576\u8a18\u9304\u88ab\u63d2\u5165\u6642\uff0c<code>event_date<\/code> \u5217\u5c07\u81ea\u52d5\u586b\u5165\u7576\u524d\u7684\u65e5\u671f\u548c\u6642\u9593\u3002<\/p>\n<h2 id=\"5-%e6%b3%a8%e6%84%8f%e4%ba%8b%e9%a0%85-zuuZaCRbWK\">5. \u6ce8\u610f\u4e8b\u9805<\/h2>\n<p>\u5728\u63d2\u5165\u65e5\u671f\u548c\u6642\u9593\u6642\uff0c\u8acb\u6ce8\u610f\u4ee5\u4e0b\u5e7e\u9ede\uff1a<\/p>\n<ul>\n<li>\u78ba\u4fdd\u4f7f\u7528\u6b63\u78ba\u7684\u6578\u64da\u985e\u578b\uff0c\u4ee5\u907f\u514d\u6578\u64da\u985e\u578b\u4e0d\u5339\u914d\u7684\u932f\u8aa4\u3002<\/li>\n<li>\u5728\u63d2\u5165\u6642\u9593\u6642\uff0c\u6ce8\u610f\u6642\u5340\u7684\u5f71\u97ff\uff0c\u7279\u5225\u662f\u5728\u5168\u7403\u5316\u7684\u61c9\u7528\u4e2d\u3002<\/li>\n<li>\u4f7f\u7528 <code>NULL<\/code> \u503c\u4f86\u8868\u793a\u7f3a\u5931\u7684\u65e5\u671f\u6216\u6642\u9593\u3002<\/li>\n<\/ul>\n<h2 id=\"%e7%b8%bd%e7%b5%90-zuuZaCRbWK\">\u7e3d\u7d50<\/h2>\n<p>\u5728 SQL \u6578\u64da\u5eab\u4e2d\u6b63\u78ba\u63d2\u5165\u6578\u64da\u548c\u6642\u9593\u8a18\u9304\u662f\u78ba\u4fdd\u6578\u64da\u5b8c\u6574\u6027\u548c\u6e96\u78ba\u6027\u7684\u95dc\u9375\u3002\u901a\u904e\u4e86\u89e3 SQL \u7684\u6578\u64da\u985e\u578b\u3001\u6b63\u78ba\u7684\u63d2\u5165\u8a9e\u6cd5\u4ee5\u53ca\u5982\u4f55\u4f7f\u7528\u7576\u524d\u6642\u9593\u6233\uff0c\u60a8\u53ef\u4ee5\u6709\u6548\u5730\u7ba1\u7406\u60a8\u7684\u6578\u64da\u5eab\u3002\u5c0d\u65bc\u9700\u8981\u9ad8\u6548\u6578\u64da\u7ba1\u7406\u7684\u4f01\u696d\uff0c\u9078\u64c7\u5408\u9069\u7684 <a href=\"https:\/\/server.hk\">VPS<\/a> \u89e3\u6c7a\u65b9\u6848\u53ef\u4ee5\u63d0\u4f9b\u7a69\u5b9a\u7684\u652f\u6301\uff0c\u5e6b\u52a9\u60a8\u66f4\u597d\u5730\u904b\u884c\u548c\u7dad\u8b77\u60a8\u7684\u6578\u64da\u5eab\u7cfb\u7d71\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u5b78\u7fd2\u5982\u4f55\u5728 SQL \u6578\u64da\u5eab\u4e2d\u6b63\u78ba\u63d2\u5165\u65e5\u671f\u548c\u6642\u9593\u8a18\u9304\uff0c\u78ba\u4fdd\u6578\u64da\u6e96\u78ba\u6027\u548c\u4e00\u81f4\u6027\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-179708","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/179708","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=179708"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/179708\/revisions"}],"predecessor-version":[{"id":179709,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/179708\/revisions\/179709"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=179708"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=179708"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=179708"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}