{"id":187142,"date":"2024-11-11T11:48:22","date_gmt":"2024-11-11T03:48:22","guid":{"rendered":"https:\/\/server.hk\/cnblog\/187142\/"},"modified":"2024-11-11T11:48:23","modified_gmt":"2024-11-11T03:48:23","slug":"%e6%95%b8%e6%93%9a%e5%ba%ab%e6%99%82%e9%96%93%e6%a0%bc%e5%bc%8f%e5%8c%96%e6%9f%a5%e8%a9%a2%e6%8a%80%e5%b7%a7-%e5%a6%82%e4%bd%95%e6%9f%a5%e8%a9%a2%e6%95%b8%e6%93%9a%e5%ba%ab%e6%99%82%e9%96%93%e6%a0%bc","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/187142\/","title":{"rendered":"\u6578\u64da\u5eab\u6642\u9593\u683c\u5f0f\u5316\u67e5\u8a62\u6280\u5de7 (\u5982\u4f55\u67e5\u8a62\u6578\u64da\u5eab\u6642\u9593\u683c\u5f0f\u5316)"},"content":{"rendered":"<h1 id=\"%e6%95%b8%e6%93%9a%e5%ba%ab%e6%99%82%e9%96%93%e6%a0%bc%e5%bc%8f%e5%8c%96%e6%9f%a5%e8%a9%a2%e6%8a%80%e5%b7%a7-%e5%a6%82%e4%bd%95%e6%9f%a5%e8%a9%a2%e6%95%b8%e6%93%9a%e5%ba%ab%e6%99%82%e9%96%93%e6%a0%bc-LvXSDHlfGY\">\u6578\u64da\u5eab\u6642\u9593\u683c\u5f0f\u5316\u67e5\u8a62\u6280\u5de7 (\u5982\u4f55\u67e5\u8a62\u6578\u64da\u5eab\u6642\u9593\u683c\u5f0f\u5316)<\/h1>\n<p>\u5728\u73fe\u4eca\u7684\u6578\u64da\u9a45\u52d5\u6642\u4ee3\uff0c\u6578\u64da\u5eab\u7684\u4f7f\u7528\u8b8a\u5f97\u8d8a\u4f86\u8d8a\u666e\u904d\u3002\u7121\u8ad6\u662f\u4f01\u696d\u9084\u662f\u500b\u4eba\uff0c\u6578\u64da\u5eab\u90fd\u626e\u6f14\u8457\u91cd\u8981\u7684\u89d2\u8272\u3002\u7279\u5225\u662f\u5728\u8655\u7406\u6642\u9593\u548c\u65e5\u671f\u6578\u64da\u6642\uff0c\u6b63\u78ba\u7684\u683c\u5f0f\u5316\u67e5\u8a62\u6280\u5de7\u986f\u5f97\u5c24\u70ba\u91cd\u8981\u3002\u672c\u6587\u5c07\u63a2\u8a0e\u5982\u4f55\u5728\u6578\u64da\u5eab\u4e2d\u9032\u884c\u6642\u9593\u683c\u5f0f\u5316\u67e5\u8a62\uff0c\u4e26\u63d0\u4f9b\u4e00\u4e9b\u5be6\u7528\u7684\u6280\u5de7\u548c\u7bc4\u4f8b\u3002<\/p>\n<h2 id=\"%e7%82%ba%e4%bb%80%e9%ba%bc%e6%99%82%e9%96%93%e6%a0%bc%e5%bc%8f%e5%8c%96%e9%87%8d%e8%a6%81%ef%bc%9f-LvXSDHlfGY\">\u70ba\u4ec0\u9ebc\u6642\u9593\u683c\u5f0f\u5316\u91cd\u8981\uff1f<\/h2>\n<p>\u6642\u9593\u683c\u5f0f\u5316\u5728\u6578\u64da\u5eab\u67e5\u8a62\u4e2d\u81f3\u95dc\u91cd\u8981\uff0c\u56e0\u70ba\u4e0d\u540c\u7684\u6578\u64da\u5eab\u7cfb\u7d71\u53ef\u80fd\u4f7f\u7528\u4e0d\u540c\u7684\u6642\u9593\u683c\u5f0f\u3002\u6b63\u78ba\u7684\u683c\u5f0f\u5316\u4e0d\u50c5\u80fd\u63d0\u9ad8\u67e5\u8a62\u6548\u7387\uff0c\u9084\u80fd\u78ba\u4fdd\u6578\u64da\u7684\u6e96\u78ba\u6027\u3002\u4f8b\u5982\uff0c\u5728 MySQL \u4e2d\uff0c\u6642\u9593\u683c\u5f0f\u901a\u5e38\u70ba &#8216;YYYY-MM-DD HH:MM:SS&#8217;\uff0c\u800c\u5728 Oracle \u4e2d\uff0c\u5247\u53ef\u80fd\u4f7f\u7528 &#8216;DD-MON-YYYY HH:MI:SS AM&#8217; \u7684\u683c\u5f0f\u3002<\/p>\n<h2 id=\"%e5%b8%b8%e8%a6%8b%e7%9a%84%e6%99%82%e9%96%93%e6%a0%bc%e5%bc%8f%e5%8c%96%e6%9f%a5%e8%a9%a2%e6%8a%80%e5%b7%a7-LvXSDHlfGY\">\u5e38\u898b\u7684\u6642\u9593\u683c\u5f0f\u5316\u67e5\u8a62\u6280\u5de7<\/h2>\n<h3 id=\"1-%e4%bd%bf%e7%94%a8%e5%85%a7%e5%bb%ba%e5%87%bd%e6%95%b8-LvXSDHlfGY\">1. \u4f7f\u7528\u5167\u5efa\u51fd\u6578<\/h3>\n<p>\u5927\u591a\u6578\u6578\u64da\u5eab\u7cfb\u7d71\u90fd\u63d0\u4f9b\u4e86\u5167\u5efa\u7684\u6642\u9593\u683c\u5f0f\u5316\u51fd\u6578\u3002\u4ee5\u4e0b\u662f\u4e00\u4e9b\u5e38\u898b\u7684\u6578\u64da\u5eab\u53ca\u5176\u6642\u9593\u683c\u5f0f\u5316\u51fd\u6578\uff1a<\/p>\n<ul>\n<li><strong>MySQL:<\/strong> \u4f7f\u7528 <code>DATE_FORMAT()<\/code> \u51fd\u6578\u4f86\u683c\u5f0f\u5316\u65e5\u671f\u548c\u6642\u9593\u3002<\/li>\n<li><strong>PostgreSQL:<\/strong> \u4f7f\u7528 <code>TO_CHAR()<\/code> \u51fd\u6578\u4f86\u683c\u5f0f\u5316\u65e5\u671f\u548c\u6642\u9593\u3002<\/li>\n<li><strong>SQL Server:<\/strong> \u4f7f\u7528 <code>FORMAT()<\/code> \u51fd\u6578\u4f86\u683c\u5f0f\u5316\u65e5\u671f\u548c\u6642\u9593\u3002<\/li>\n<\/ul>\n<h3 id=\"2-mysql-%e7%9a%84%e6%99%82%e9%96%93%e6%a0%bc%e5%bc%8f%e5%8c%96%e7%af%84%e4%be%8b-LvXSDHlfGY\">2. MySQL \u7684\u6642\u9593\u683c\u5f0f\u5316\u7bc4\u4f8b<\/h3>\n<pre><code>SELECT DATE_FORMAT(NOW(), '%Y-%m-%d %H:%i:%s') AS formatted_time;<\/code><\/pre>\n<p>\u4e0a\u8ff0\u67e5\u8a62\u5c07\u7576\u524d\u6642\u9593\u683c\u5f0f\u5316\u70ba &#8216;YYYY-MM-DD HH:MM:SS&#8217; \u7684\u683c\u5f0f\u3002<\/p>\n<h3 id=\"3-postgresql-%e7%9a%84%e6%99%82%e9%96%93%e6%a0%bc%e5%bc%8f%e5%8c%96%e7%af%84%e4%be%8b-LvXSDHlfGY\">3. PostgreSQL \u7684\u6642\u9593\u683c\u5f0f\u5316\u7bc4\u4f8b<\/h3>\n<pre><code>SELECT TO_CHAR(NOW(), 'YYYY-MM-DD HH24:MI:SS') AS formatted_time;<\/code><\/pre>\n<p>\u9019\u500b\u67e5\u8a62\u5c07 PostgreSQL \u4e2d\u7684\u7576\u524d\u6642\u9593\u683c\u5f0f\u5316\u70ba &#8216;YYYY-MM-DD HH24:MI:SS&#8217; \u7684\u683c\u5f0f\u3002<\/p>\n<h3 id=\"4-sql-server-%e7%9a%84%e6%99%82%e9%96%93%e6%a0%bc%e5%bc%8f%e5%8c%96%e7%af%84%e4%be%8b-LvXSDHlfGY\">4. SQL Server \u7684\u6642\u9593\u683c\u5f0f\u5316\u7bc4\u4f8b<\/h3>\n<pre><code>SELECT FORMAT(GETDATE(), 'yyyy-MM-dd HH:mm:ss') AS formatted_time;<\/code><\/pre>\n<p>\u5728 SQL Server \u4e2d\uff0c\u9019\u500b\u67e5\u8a62\u5c07\u7576\u524d\u6642\u9593\u683c\u5f0f\u5316\u70ba &#8216;yyyy-MM-dd HH:mm:ss&#8217; \u7684\u683c\u5f0f\u3002<\/p>\n<h2 id=\"%e8%99%95%e7%90%86%e4%b8%8d%e5%90%8c%e6%af%94%e8%bc%83%e7%9a%84%e6%99%82%e9%96%93%e6%a0%bc%e5%bc%8f-LvXSDHlfGY\">\u8655\u7406\u4e0d\u540c\u6bd4\u8f03\u7684\u6642\u9593\u683c\u5f0f<\/h2>\n<p>\u5728\u9032\u884c\u6642\u9593\u6bd4\u8f03\u6642\uff0c\u78ba\u4fdd\u6642\u9593\u683c\u5f0f\u4e00\u81f4\u662f\u975e\u5e38\u91cd\u8981\u7684\u3002\u53ef\u4ee5\u4f7f\u7528\u4e0a\u8ff0\u7684\u683c\u5f0f\u5316\u51fd\u6578\u4f86\u5c07\u6642\u9593\u8f49\u63db\u70ba\u76f8\u540c\u7684\u683c\u5f0f\uff0c\u5f9e\u800c\u9032\u884c\u6bd4\u8f03\u3002\u4f8b\u5982\uff1a<\/p>\n<pre><code>SELECT * FROM events WHERE DATE_FORMAT(event_time, '%Y-%m-%d') = '2023-10-01';<\/code><\/pre>\n<p>\u9019\u500b\u67e5\u8a62\u5c07\u5f9e <code>events<\/code> \u8868\u4e2d\u9078\u64c7\u6240\u6709\u5728 2023 \u5e74 10 \u6708 1 \u65e5\u7684\u4e8b\u4ef6\u3002<\/p>\n<h2 id=\"%e7%b5%90%e8%ab%96-LvXSDHlfGY\">\u7d50\u8ad6<\/h2>\n<p>\u638c\u63e1\u6578\u64da\u5eab\u4e2d\u7684\u6642\u9593\u683c\u5f0f\u5316\u67e5\u8a62\u6280\u5de7\u5c0d\u65bc\u6578\u64da\u7684\u6e96\u78ba\u6027\u548c\u67e5\u8a62\u6548\u7387\u81f3\u95dc\u91cd\u8981\u3002\u901a\u904e\u4f7f\u7528\u5167\u5efa\u51fd\u6578\u548c\u6b63\u78ba\u7684\u683c\u5f0f\u5316\u65b9\u6cd5\uff0c\u60a8\u53ef\u4ee5\u8f15\u9b06\u5730\u8655\u7406\u548c\u6bd4\u8f03\u6642\u9593\u6578\u64da\u3002\u7121\u8ad6\u60a8\u4f7f\u7528\u7684\u662f MySQL\u3001PostgreSQL \u9084\u662f SQL Server\uff0c\u4e86\u89e3\u9019\u4e9b\u6280\u5de7\u90fd\u80fd\u5e6b\u52a9\u60a8\u66f4\u6709\u6548\u5730\u7ba1\u7406\u6578\u64da\u3002<\/p>\n<p>\u5982\u679c\u60a8\u6b63\u5728\u5c0b\u627e\u9ad8\u6548\u7684 <a href=\"https:\/\/server.hk\">VPS<\/a> \u89e3\u6c7a\u65b9\u6848\u4f86\u652f\u6301\u60a8\u7684\u6578\u64da\u5eab\u9700\u6c42\uff0cServer.HK \u63d0\u4f9b\u591a\u7a2e\u9078\u64c7\uff0c\u5e6b\u52a9\u60a8\u8f15\u9b06\u7ba1\u7406\u548c\u512a\u5316\u60a8\u7684\u6578\u64da\u5eab\u74b0\u5883\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u638c\u63e1\u6578\u64da\u5eab\u6642\u9593\u683c\u5f0f\u5316\u67e5\u8a62\u6280\u5de7\uff0c\u63d0\u5347\u67e5\u8a62\u6548\u7387\uff0c\u8f15\u9b06\u8655\u7406\u5404\u7a2e\u6642\u9593\u683c\u5f0f\uff0c\u512a\u5316\u6578\u64da\u5206\u6790\u6d41\u7a0b\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-187142","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/187142","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=187142"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/187142\/revisions"}],"predecessor-version":[{"id":187143,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/187142\/revisions\/187143"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=187142"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=187142"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=187142"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}