{"id":60783,"date":"2024-10-13T05:46:14","date_gmt":"2024-10-12T21:46:14","guid":{"rendered":"https:\/\/server.hk\/cnblog\/60783\/"},"modified":"2024-10-13T05:46:14","modified_gmt":"2024-10-12T21:46:14","slug":"db2%e6%95%b8%e6%93%9a%e5%ba%ab%e5%a6%82%e4%bd%95%e6%ad%a3%e7%a2%ba%e5%8f%96%e5%be%97%e7%95%b6%e5%89%8d%e6%99%82%e9%96%93","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/60783\/","title":{"rendered":"DB2\u6578\u64da\u5eab\u5982\u4f55\u6b63\u78ba\u53d6\u5f97\u7576\u524d\u6642\u9593"},"content":{"rendered":"<h1 id=\"db2%e6%95%b8%e6%93%9a%e5%ba%ab%e5%a6%82%e4%bd%95%e6%ad%a3%e7%a2%ba%e5%8f%96%e5%be%97%e7%95%b6%e5%89%8d%e6%99%82%e9%96%93-fNPtbhDAfS\">DB2\u6578\u64da\u5eab\u5982\u4f55\u6b63\u78ba\u53d6\u5f97\u7576\u524d\u6642\u9593<\/h1>\n<p>\u5728\u6578\u64da\u5eab\u7ba1\u7406\u7cfb\u7d71\u4e2d\uff0c\u6642\u9593\u7684\u7ba1\u7406\u662f\u975e\u5e38\u91cd\u8981\u7684\u4e00\u74b0\u3002\u5c0d\u65bcIBM\u7684DB2\u6578\u64da\u5eab\u4f86\u8aaa\uff0c\u6b63\u78ba\u53d6\u5f97\u7576\u524d\u6642\u9593\u4e0d\u50c5\u80fd\u5920\u5e6b\u52a9\u958b\u767c\u8005\u9032\u884c\u6578\u64da\u7684\u6642\u9593\u6233\u8a18\uff0c\u9084\u80fd\u5728\u5831\u544a\u751f\u6210\u3001\u6578\u64da\u5206\u6790\u7b49\u591a\u500b\u65b9\u9762\u767c\u63ee\u95dc\u9375\u4f5c\u7528\u3002\u672c\u6587\u5c07\u63a2\u8a0e\u5982\u4f55\u5728DB2\u4e2d\u6b63\u78ba\u53d6\u5f97\u7576\u524d\u6642\u9593\uff0c\u4e26\u63d0\u4f9b\u76f8\u95dc\u7684\u7bc4\u4f8b\u548c\u4ee3\u78bc\u3002<\/p>\n<h2 id=\"db2%e4%b8%ad%e7%9a%84%e6%99%82%e9%96%93%e9%a1%9e%e5%9e%8b-fNPtbhDAfS\">DB2\u4e2d\u7684\u6642\u9593\u985e\u578b<\/h2>\n<p>\u5728DB2\u4e2d\uff0c\u4e3b\u8981\u6709\u4e09\u7a2e\u6642\u9593\u76f8\u95dc\u7684\u6578\u64da\u985e\u578b\uff1a<\/p>\n<ul>\n<li><strong>TIME<\/strong>\uff1a\u8868\u793a\u4e00\u5929\u4e2d\u7684\u6642\u9593\uff0c\u7bc4\u570d\u5f9e00:00:00\u523023:59:59\u3002<\/li>\n<li><strong>DATE<\/strong>\uff1a\u8868\u793a\u65e5\u671f\uff0c\u7bc4\u570d\u5f9e0001-01-01\u52309999-12-31\u3002<\/li>\n<li><strong>TIMESTAMP<\/strong>\uff1a\u540c\u6642\u5305\u542b\u65e5\u671f\u548c\u6642\u9593\uff0c\u7bc4\u570d\u5f9e0001-01-01 00:00:00\u52309999-12-31 23:59:59\u3002<\/li>\n<\/ul>\n<h2 id=\"%e5%8f%96%e5%be%97%e7%95%b6%e5%89%8d%e6%99%82%e9%96%93%e7%9a%84%e6%96%b9%e6%b3%95-fNPtbhDAfS\">\u53d6\u5f97\u7576\u524d\u6642\u9593\u7684\u65b9\u6cd5<\/h2>\n<p>\u5728DB2\u4e2d\uff0c\u53d6\u5f97\u7576\u524d\u6642\u9593\u7684\u65b9\u6cd5\u6709\u5e7e\u7a2e\uff0c\u4ee5\u4e0b\u662f\u6700\u5e38\u7528\u7684\u5e7e\u7a2e\uff1a<\/p>\n<h3 id=\"1-%e4%bd%bf%e7%94%a8current-time-fNPtbhDAfS\">1. \u4f7f\u7528CURRENT TIME<\/h3>\n<p>\u5982\u679c\u53ea\u9700\u8981\u7576\u524d\u7684\u6642\u9593\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0bSQL\u8a9e\u53e5\uff1a<\/p>\n<pre><code>SELECT CURRENT TIME AS CurrentTime FROM SYSIBM.SYSDUMMY1;<\/code><\/pre>\n<p>\u9019\u500b\u67e5\u8a62\u5c07\u8fd4\u56de\u7576\u524d\u7684\u6642\u9593\uff0c\u683c\u5f0f\u70baHH:MM:SS\u3002<\/p>\n<h3 id=\"2-%e4%bd%bf%e7%94%a8current-date-fNPtbhDAfS\">2. \u4f7f\u7528CURRENT DATE<\/h3>\n<p>\u5982\u679c\u9700\u8981\u7576\u524d\u7684\u65e5\u671f\uff0c\u53ef\u4ee5\u4f7f\u7528\uff1a<\/p>\n<pre><code>SELECT CURRENT DATE AS CurrentDate FROM SYSIBM.SYSDUMMY1;<\/code><\/pre>\n<p>\u9019\u5c07\u8fd4\u56de\u7576\u524d\u7684\u65e5\u671f\uff0c\u683c\u5f0f\u70baYYYY-MM-DD\u3002<\/p>\n<h3 id=\"3-%e4%bd%bf%e7%94%a8current-timestamp-fNPtbhDAfS\">3. \u4f7f\u7528CURRENT TIMESTAMP<\/h3>\n<p>\u5982\u679c\u9700\u8981\u540c\u6642\u7372\u53d6\u7576\u524d\u7684\u65e5\u671f\u548c\u6642\u9593\uff0c\u53ef\u4ee5\u4f7f\u7528\uff1a<\/p>\n<pre><code>SELECT CURRENT TIMESTAMP AS CurrentTimestamp FROM SYSIBM.SYSDUMMY1;<\/code><\/pre>\n<p>\u9019\u5c07\u8fd4\u56de\u7576\u524d\u7684\u65e5\u671f\u548c\u6642\u9593\uff0c\u683c\u5f0f\u70baYYYY-MM-DD HH:MM:SS.FF\u3002<\/p>\n<h2 id=\"%e4%bd%bf%e7%94%a8%e7%af%84%e4%be%8b-fNPtbhDAfS\">\u4f7f\u7528\u7bc4\u4f8b<\/h2>\n<p>\u4ee5\u4e0b\u662f\u4e00\u500b\u5b8c\u6574\u7684\u7bc4\u4f8b\uff0c\u5c55\u793a\u5982\u4f55\u5728DB2\u4e2d\u4f7f\u7528\u9019\u4e9b\u51fd\u6578\uff1a<\/p>\n<pre><code>SELECT \n    CURRENT TIME AS CurrentTime, \n    CURRENT DATE AS CurrentDate, \n    CURRENT TIMESTAMP AS CurrentTimestamp \nFROM SYSIBM.SYSDUMMY1;<\/code><\/pre>\n<p>\u57f7\u884c\u4e0a\u8ff0\u67e5\u8a62\u5f8c\uff0c\u5c07\u6703\u8fd4\u56de\u4e09\u500b\u6b04\u4f4d\uff0c\u5206\u5225\u986f\u793a\u7576\u524d\u7684\u6642\u9593\u3001\u65e5\u671f\u548c\u6642\u9593\u6233\u3002<\/p>\n<h2 id=\"%e6%b3%a8%e6%84%8f%e4%ba%8b%e9%a0%85-fNPtbhDAfS\">\u6ce8\u610f\u4e8b\u9805<\/h2>\n<p>\u5728\u4f7f\u7528\u9019\u4e9b\u51fd\u6578\u6642\uff0c\u6709\u5e7e\u9ede\u9700\u8981\u6ce8\u610f\uff1a<\/p>\n<ul>\n<li>DB2\u7684\u6642\u9593\u548c\u65e5\u671f\u662f\u6839\u64da\u4f3a\u670d\u5668\u7684\u7cfb\u7d71\u6642\u9593\u4f86\u6c7a\u5b9a\u7684\uff0c\u56e0\u6b64\u78ba\u4fdd\u4f3a\u670d\u5668\u7684\u6642\u9593\u8a2d\u7f6e\u6b63\u78ba\u662f\u975e\u5e38\u91cd\u8981\u7684\u3002<\/li>\n<li>\u5728\u9032\u884c\u6642\u9593\u8a08\u7b97\u6642\uff0c\u6ce8\u610f\u6642\u5340\u7684\u5f71\u97ff\uff0c\u7279\u5225\u662f\u5728\u8de8\u570b\u696d\u52d9\u4e2d\u3002<\/li>\n<li>\u4f7f\u7528TIMESTAMP\u6642\uff0c\u6ce8\u610f\u5c0f\u6578\u79d2\u7684\u7cbe\u5ea6\uff0c\u6839\u64da\u9700\u6c42\u9078\u64c7\u5408\u9069\u7684\u683c\u5f0f\u3002<\/li>\n<\/ul>\n<h2 id=\"%e7%b5%90%e8%ab%96-fNPtbhDAfS\">\u7d50\u8ad6<\/h2>\n<p>\u5728DB2\u6578\u64da\u5eab\u4e2d\uff0c\u6b63\u78ba\u53d6\u5f97\u7576\u524d\u6642\u9593\u662f\u9032\u884c\u6578\u64da\u7ba1\u7406\u548c\u5206\u6790\u7684\u91cd\u8981\u6b65\u9a5f\u3002\u901a\u904e\u4f7f\u7528CURRENT TIME\u3001CURRENT DATE\u548cCURRENT TIMESTAMP\u7b49\u51fd\u6578\uff0c\u958b\u767c\u8005\u53ef\u4ee5\u8f15\u9b06\u7372\u53d6\u6240\u9700\u7684\u6642\u9593\u4fe1\u606f\u3002\u9019\u4e9b\u529f\u80fd\u4e0d\u50c5\u63d0\u9ad8\u4e86\u6578\u64da\u8655\u7406\u7684\u6548\u7387\uff0c\u4e5f\u70ba\u696d\u52d9\u6c7a\u7b56\u63d0\u4f9b\u4e86\u91cd\u8981\u7684\u6642\u9593\u4f9d\u64da\u3002<\/p>\n<p>\u5982\u9700\u4e86\u89e3\u66f4\u591a\u95dc\u65bc\u6578\u64da\u5eab\u7ba1\u7406\u548c\u4f3a\u670d\u5668\u89e3\u6c7a\u65b9\u6848\u7684\u4fe1\u606f\uff0c\u8acb\u8a2a\u554f\u6211\u5011\u7684\u7db2\u7ad9 <a href=\"https:\/\/server.hk\">Server.HK<\/a>\uff0c\u63a2\u7d22\u6211\u5011\u7684 <a href=\"https:\/\/server.hk\">VPS<\/a> \u548c <a href=\"https:\/\/server.hk\">\u9999\u6e2f\u4f3a\u670d\u5668<\/a> \u670d\u52d9\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u4e86\u89e3\u5982\u4f55\u5728DB2\u6578\u64da\u5eab\u4e2d\u6b63\u78ba\u7372\u53d6\u7576\u524d\u6642\u9593\uff0c\u78ba\u4fdd\u6578\u64da\u6e96\u78ba\u6027\u8207\u67e5\u8a62\u6548\u7387\u3002<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[101],"tags":[],"class_list":["post-60783","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/60783","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"}],"author":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/comments?post=60783"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/60783\/revisions"}],"predecessor-version":[{"id":60784,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/60783\/revisions\/60784"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=60783"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=60783"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=60783"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}