{"id":143765,"date":"2024-11-01T01:03:43","date_gmt":"2024-10-31T17:03:43","guid":{"rendered":"https:\/\/server.hk\/cnblog\/143765\/"},"modified":"2024-11-01T01:03:44","modified_gmt":"2024-10-31T17:03:44","slug":"sql-%e6%9f%a5%e8%a9%a2%e4%b8%ad-time-%e5%ad%97%e6%ae%b5%e7%9a%84%e4%bd%bf%e7%94%a8","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/143765\/","title":{"rendered":"SQL \u67e5\u8a62\u4e2d time \u5b57\u6bb5\u7684\u4f7f\u7528"},"content":{"rendered":"<h1 id=\"sql-%e6%9f%a5%e8%a9%a2%e4%b8%ad-time-%e5%ad%97%e6%ae%b5%e7%9a%84%e4%bd%bf%e7%94%a8-ZogIiUJcJR\">SQL \u67e5\u8a62\u4e2d time \u5b57\u6bb5\u7684\u4f7f\u7528<\/h1>\n<p>\u5728\u8cc7\u6599\u5eab\u7ba1\u7406\u7cfb\u7d71\u4e2d\uff0cSQL\uff08\u7d50\u69cb\u5316\u67e5\u8a62\u8a9e\u8a00\uff09\u662f\u4e00\u7a2e\u7528\u65bc\u67e5\u8a62\u548c\u64cd\u4f5c\u8cc7\u6599\u7684\u6a19\u6e96\u8a9e\u8a00\u3002\u7576\u6d89\u53ca\u5230\u6642\u9593\u548c\u65e5\u671f\u7684\u6578\u64da\u6642\uff0c\u6b63\u78ba\u4f7f\u7528\u6642\u9593\u5b57\u6bb5\u662f\u81f3\u95dc\u91cd\u8981\u7684\u3002\u672c\u6587\u5c07\u63a2\u8a0e SQL \u4e2d time \u5b57\u6bb5\u7684\u4f7f\u7528\uff0c\u5305\u62ec\u5176\u5b9a\u7fa9\u3001\u6578\u64da\u985e\u578b\u3001\u5e38\u898b\u64cd\u4f5c\u53ca\u7bc4\u4f8b\u3002<\/p>\n<h2 id=\"1-time-%e5%ad%97%e6%ae%b5%e7%9a%84%e5%ae%9a%e7%be%a9-ZogIiUJcJR\">1. time \u5b57\u6bb5\u7684\u5b9a\u7fa9<\/h2>\n<p>\u5728 SQL \u4e2d\uff0ctime \u5b57\u6bb5\u7528\u65bc\u5132\u5b58\u6642\u9593\u6578\u64da\uff0c\u901a\u5e38\u4e0d\u5305\u62ec\u65e5\u671f\u90e8\u5206\u3002\u9019\u610f\u5473\u8457 time \u5b57\u6bb5\u50c5\u8a18\u9304\u4e00\u5929\u4e2d\u7684\u6642\u9593\uff0c\u4f8b\u5982\u5c0f\u6642\u3001\u5206\u9418\u548c\u79d2\u3002\u9019\u5728\u9700\u8981\u8a18\u9304\u4e8b\u4ef6\u767c\u751f\u6642\u9593\u7684\u60c5\u6cc1\u4e0b\u975e\u5e38\u6709\u7528\uff0c\u4f8b\u5982\u7528\u6236\u767b\u9304\u6642\u9593\u3001\u4ea4\u6613\u6642\u9593\u7b49\u3002<\/p>\n<h2 id=\"2-time-%e6%95%b8%e6%93%9a%e9%a1%9e%e5%9e%8b-ZogIiUJcJR\">2. time \u6578\u64da\u985e\u578b<\/h2>\n<p>\u5728\u4e0d\u540c\u7684\u8cc7\u6599\u5eab\u7cfb\u7d71\u4e2d\uff0ctime \u6578\u64da\u985e\u578b\u7684\u5177\u9ad4\u5be6\u73fe\u53ef\u80fd\u6703\u6709\u6240\u4e0d\u540c\u3002\u4ee5\u4e0b\u662f\u4e00\u4e9b\u5e38\u898b\u7684\u8cc7\u6599\u5eab\u7cfb\u7d71\u53ca\u5176\u5c0d\u61c9\u7684 time \u6578\u64da\u985e\u578b\uff1a<\/p>\n<ul>\n<li><strong>MySQL:<\/strong> \u4f7f\u7528 <code>TIME<\/code> \u6578\u64da\u985e\u578b\uff0c\u7bc4\u570d\u70ba &#8216;-838:59:59&#8217; \u5230 &#8216;838:59:59&#8217;\u3002<\/li>\n<li><strong>PostgreSQL:<\/strong> \u4f7f\u7528 <code>TIME<\/code> \u6578\u64da\u985e\u578b\uff0c\u7bc4\u570d\u70ba &#8217;00:00:00&#8242; \u5230 &#8217;24:00:00&#8217;\u3002<\/li>\n<li><strong>SQL Server:<\/strong> \u4f7f\u7528 <code>TIME<\/code> \u6578\u64da\u985e\u578b\uff0c\u7bc4\u570d\u70ba &#8217;00:00:00.0000000&#8242; \u5230 &#8217;23:59:59.9999999&#8217;\u3002<\/li>\n<\/ul>\n<h2 id=\"3-%e5%b8%b8%e8%a6%8b%e6%93%8d%e4%bd%9c-ZogIiUJcJR\">3. \u5e38\u898b\u64cd\u4f5c<\/h2>\n<p>\u5728 SQL \u4e2d\uff0c\u5c0d time \u5b57\u6bb5\u7684\u64cd\u4f5c\u901a\u5e38\u5305\u62ec\u63d2\u5165\u3001\u67e5\u8a62\u3001\u66f4\u65b0\u548c\u522a\u9664\u3002\u4ee5\u4e0b\u662f\u4e00\u4e9b\u5e38\u898b\u7684\u64cd\u4f5c\u793a\u4f8b\uff1a<\/p>\n<h3 id=\"3-1-%e6%8f%92%e5%85%a5%e6%99%82%e9%96%93%e6%95%b8%e6%93%9a-ZogIiUJcJR\">3.1 \u63d2\u5165\u6642\u9593\u6578\u64da<\/h3>\n<pre><code>INSERT INTO events (event_time) VALUES ('12:30:00');<\/code><\/pre>\n<p>\u4e0a\u8ff0\u8a9e\u53e5\u5c07\u4e00\u500b\u6642\u9593\u503c &#8217;12:30:00&#8242; \u63d2\u5165\u5230 events \u8868\u7684 event_time \u5b57\u6bb5\u4e2d\u3002<\/p>\n<h3 id=\"3-2-%e6%9f%a5%e8%a9%a2%e6%99%82%e9%96%93%e6%95%b8%e6%93%9a-ZogIiUJcJR\">3.2 \u67e5\u8a62\u6642\u9593\u6578\u64da<\/h3>\n<pre><code>SELECT * FROM events WHERE event_time &gt; '10:00:00';<\/code><\/pre>\n<p>\u9019\u689d\u67e5\u8a62\u5c07\u8fd4\u56de\u6240\u6709 event_time \u5728 &#8217;10:00:00&#8242; \u4e4b\u5f8c\u7684\u4e8b\u4ef6\u3002<\/p>\n<h3 id=\"3-3-%e6%9b%b4%e6%96%b0%e6%99%82%e9%96%93%e6%95%b8%e6%93%9a-ZogIiUJcJR\">3.3 \u66f4\u65b0\u6642\u9593\u6578\u64da<\/h3>\n<pre><code>UPDATE events SET event_time = '14:00:00' WHERE event_id = 1;<\/code><\/pre>\n<p>\u9019\u689d\u8a9e\u53e5\u5c07 event_id \u70ba 1 \u7684\u4e8b\u4ef6\u7684\u6642\u9593\u66f4\u65b0\u70ba &#8217;14:00:00&#8217;\u3002<\/p>\n<h3 id=\"3-4-%e5%88%aa%e9%99%a4%e6%99%82%e9%96%93%e6%95%b8%e6%93%9a-ZogIiUJcJR\">3.4 \u522a\u9664\u6642\u9593\u6578\u64da<\/h3>\n<pre><code>DELETE FROM events WHERE event_time &lt; '09:00:00';<\/code><\/pre>\n<p>\u9019\u689d\u8a9e\u53e5\u5c07\u522a\u9664\u6240\u6709 event_time \u5728 &#8217;09:00:00&#8242; \u4e4b\u524d\u7684\u4e8b\u4ef6\u3002<\/p>\n<h2 id=\"4-%e6%b3%a8%e6%84%8f%e4%ba%8b%e9%a0%85-ZogIiUJcJR\">4. \u6ce8\u610f\u4e8b\u9805<\/h2>\n<p>\u5728\u4f7f\u7528 time \u5b57\u6bb5\u6642\uff0c\u6709\u5e7e\u500b\u6ce8\u610f\u4e8b\u9805\u9700\u8981\u8003\u616e\uff1a<\/p>\n<ul>\n<li>\u6642\u5340\u554f\u984c\uff1a\u4e0d\u540c\u7684\u7528\u6236\u53ef\u80fd\u4f4d\u65bc\u4e0d\u540c\u7684\u6642\u5340\uff0c\u56e0\u6b64\u5728\u5132\u5b58\u548c\u67e5\u8a62\u6642\u9593\u6642\uff0c\u61c9\u8003\u616e\u6642\u5340\u7684\u5f71\u97ff\u3002<\/li>\n<li>\u683c\u5f0f\u5316\uff1a\u5728\u986f\u793a\u6642\u9593\u6578\u64da\u6642\uff0c\u78ba\u4fdd\u4f7f\u7528\u6b63\u78ba\u7684\u683c\u5f0f\uff0c\u4ee5\u4fbf\u7528\u6236\u80fd\u5920\u8f15\u9b06\u7406\u89e3\u3002<\/li>\n<li>\u6027\u80fd\uff1a\u5c0d\u65bc\u5927\u91cf\u6642\u9593\u6578\u64da\u7684\u67e5\u8a62\uff0c\u61c9\u8003\u616e\u7d22\u5f15\u7684\u4f7f\u7528\uff0c\u4ee5\u63d0\u9ad8\u67e5\u8a62\u6027\u80fd\u3002<\/li>\n<\/ul>\n<h2 id=\"%e7%b8%bd%e7%b5%90-ZogIiUJcJR\">\u7e3d\u7d50<\/h2>\n<p>\u5728 SQL \u67e5\u8a62\u4e2d\uff0ctime \u5b57\u6bb5\u7684\u4f7f\u7528\u5c0d\u65bc\u7ba1\u7406\u548c\u64cd\u4f5c\u6642\u9593\u6578\u64da\u81f3\u95dc\u91cd\u8981\u3002\u4e86\u89e3\u5176\u6578\u64da\u985e\u578b\u3001\u5e38\u898b\u64cd\u4f5c\u53ca\u6ce8\u610f\u4e8b\u9805\uff0c\u53ef\u4ee5\u5e6b\u52a9\u958b\u767c\u8005\u66f4\u6709\u6548\u5730\u8655\u7406\u6642\u9593\u76f8\u95dc\u7684\u6578\u64da\u3002\u82e5\u60a8\u9700\u8981\u9032\u4e00\u6b65\u4e86\u89e3\u5982\u4f55\u5728 <a href=\"https:\/\/server.hk\">\u9999\u6e2f VPS<\/a> \u74b0\u5883\u4e2d\u4f7f\u7528 SQL\uff0c\u6216\u5c0b\u627e\u9069\u5408\u7684 <a href=\"https:\/\/server.hk\">\u4f3a\u670d\u5668<\/a> \u89e3\u6c7a\u65b9\u6848\uff0c\u8acb\u8a2a\u554f\u6211\u5011\u7684\u7db2\u7ad9\u4ee5\u7372\u53d6\u66f4\u591a\u8cc7\u8a0a\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u4e86\u89e3 SQL \u67e5\u8be2\u4e2d time \u5b57\u6bb5\u7684\u4f7f\u7528\uff0c\u638c\u63e1\u65f6\u95f4\u6570\u636e\u7684\u5b58\u50a8\u3001\u67e5\u8be2\u548c\u64cd\u4f5c\u6280\u5de7\uff0c\u63d0\u9ad8\u6570\u636e\u5e93\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-143765","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/143765","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=143765"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/143765\/revisions"}],"predecessor-version":[{"id":143766,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/143765\/revisions\/143766"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=143765"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=143765"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=143765"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}