{"id":60591,"date":"2024-10-13T04:08:14","date_gmt":"2024-10-12T20:08:14","guid":{"rendered":"https:\/\/server.hk\/cnblog\/60591\/"},"modified":"2024-10-13T04:08:14","modified_gmt":"2024-10-12T20:08:14","slug":"db2%e5%8f%96%e5%be%97%e7%95%b6%e5%89%8d%e6%99%82%e9%96%93%e5%a6%82%e4%bd%95%e6%ad%a3%e7%a2%ba%e6%93%8d%e4%bd%9c%ef%bc%9f","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/60591\/","title":{"rendered":"DB2\u53d6\u5f97\u7576\u524d\u6642\u9593\u5982\u4f55\u6b63\u78ba\u64cd\u4f5c\uff1f"},"content":{"rendered":"<h1 id=\"db2%e5%8f%96%e5%be%97%e7%95%b6%e5%89%8d%e6%99%82%e9%96%93%e5%a6%82%e4%bd%95%e6%ad%a3%e7%a2%ba%e6%93%8d%e4%bd%9c%ef%bc%9f-fKkKQrxBCL\">DB2\u53d6\u5f97\u7576\u524d\u6642\u9593\u5982\u4f55\u6b63\u78ba\u64cd\u4f5c\uff1f<\/h1>\n<p>\u5728\u8cc7\u6599\u5eab\u7ba1\u7406\u7cfb\u7d71\u4e2d\uff0c\u6642\u9593\u7684\u7ba1\u7406\u662f\u975e\u5e38\u91cd\u8981\u7684\u4e00\u74b0\u3002IBM\u7684DB2\u8cc7\u6599\u5eab\u63d0\u4f9b\u4e86\u591a\u7a2e\u65b9\u6cd5\u4f86\u7372\u53d6\u7576\u524d\u6642\u9593\u3002\u672c\u6587\u5c07\u63a2\u8a0e\u5982\u4f55\u5728DB2\u4e2d\u6b63\u78ba\u5730\u53d6\u5f97\u7576\u524d\u6642\u9593\uff0c\u4e26\u63d0\u4f9b\u4e00\u4e9b\u5be6\u7528\u7684\u7bc4\u4f8b\u548c\u5efa\u8b70\u3002<\/p>\n<h2 id=\"db2%e4%b8%ad%e7%9a%84%e6%99%82%e9%96%93%e9%a1%9e%e5%9e%8b-fKkKQrxBCL\">DB2\u4e2d\u7684\u6642\u9593\u985e\u578b<\/h2>\n<p>\u5728DB2\u4e2d\uff0c\u6642\u9593\u7684\u8868\u793a\u4e3b\u8981\u6709\u4ee5\u4e0b\u5e7e\u7a2e\u8cc7\u6599\u985e\u578b\uff1a<\/p>\n<ul>\n<li><strong>TIME<\/strong>\uff1a\u8868\u793a\u4e00\u5929\u4e2d\u7684\u6642\u9593\uff0c\u683c\u5f0f\u70baHH:MM:SS\u3002<\/li>\n<li><strong>DATE<\/strong>\uff1a\u8868\u793a\u65e5\u671f\uff0c\u683c\u5f0f\u70baYYYY-MM-DD\u3002<\/li>\n<li><strong>TIMESTAMP<\/strong>\uff1a\u8868\u793a\u65e5\u671f\u548c\u6642\u9593\u7684\u7d44\u5408\uff0c\u683c\u5f0f\u70baYYYY-MM-DD HH:MM:SS\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-fKkKQrxBCL\">\u53d6\u5f97\u7576\u524d\u6642\u9593\u7684\u65b9\u6cd5<\/h2>\n<p>\u5728DB2\u4e2d\uff0c\u53d6\u5f97\u7576\u524d\u6642\u9593\u7684\u4e3b\u8981\u65b9\u6cd5\u6709\u4ee5\u4e0b\u5e7e\u7a2e\uff1a<\/p>\n<h3 id=\"1-%e4%bd%bf%e7%94%a8current-time-fKkKQrxBCL\">1. \u4f7f\u7528CURRENT TIME<\/h3>\n<p>\u8981\u7372\u53d6\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-fKkKQrxBCL\">2. \u4f7f\u7528CURRENT DATE<\/h3>\n<p>\u5982\u679c\u9700\u8981\u7372\u53d6\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-fKkKQrxBCL\">3. \u4f7f\u7528CURRENT TIMESTAMP<\/h3>\n<p>\u82e5\u9700\u8981\u540c\u6642\u7372\u53d6\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\u3002<\/p>\n<h2 id=\"%e4%bd%bf%e7%94%a8%e7%af%84%e4%be%8b-fKkKQrxBCL\">\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\u9019\u500b\u67e5\u8a62\u5f8c\uff0c\u60a8\u5c07\u7372\u5f97\u7576\u524d\u7684\u6642\u9593\u3001\u65e5\u671f\u548c\u6642\u9593\u6233\u8a18\uff0c\u9019\u5c0d\u65bc\u8a31\u591a\u61c9\u7528\u7a0b\u5f0f\u4f86\u8aaa\u90fd\u662f\u975e\u5e38\u6709\u7528\u7684\u3002<\/p>\n<h2 id=\"%e6%b3%a8%e6%84%8f%e4%ba%8b%e9%a0%85-fKkKQrxBCL\">\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\u6642\u5340\u8a2d\u5b9a\u4f86\u6c7a\u5b9a\u7684\uff0c\u56e0\u6b64\u5728\u8de8\u6642\u5340\u7684\u61c9\u7528\u4e2d\uff0c\u9700\u7279\u5225\u6ce8\u610f\u6642\u5340\u7684\u5f71\u97ff\u3002<\/li>\n<li>\u5728\u9032\u884c\u6642\u9593\u8a08\u7b97\u6642\uff0c\u5efa\u8b70\u4f7f\u7528TIMESTAMP\u985e\u578b\uff0c\u4ee5\u907f\u514d\u56e0\u70ba\u6642\u9593\u683c\u5f0f\u4e0d\u4e00\u81f4\u800c\u5c0e\u81f4\u7684\u932f\u8aa4\u3002<\/li>\n<li>\u5728\u67d0\u4e9b\u60c5\u6cc1\u4e0b\uff0c\u53ef\u80fd\u9700\u8981\u5c07\u6642\u9593\u8f49\u63db\u70ba\u7279\u5b9a\u683c\u5f0f\uff0c\u9019\u53ef\u4ee5\u4f7f\u7528DB2\u7684\u683c\u5f0f\u5316\u51fd\u6578\u4f86\u5be6\u73fe\u3002<\/li>\n<\/ul>\n<h2 id=\"%e7%b5%90%e8%ab%96-fKkKQrxBCL\">\u7d50\u8ad6<\/h2>\n<p>\u5728DB2\u4e2d\uff0c\u7372\u53d6\u7576\u524d\u6642\u9593\u7684\u65b9\u6cd5\u975e\u5e38\u7c21\u55ae\u4e14\u76f4\u89c0\u3002\u7121\u8ad6\u662f\u4f7f\u7528CURRENT TIME\u3001CURRENT DATE\u9084\u662fCURRENT TIMESTAMP\uff0c\u9019\u4e9b\u51fd\u6578\u90fd\u80fd\u5920\u6709\u6548\u5730\u63d0\u4f9b\u6240\u9700\u7684\u6642\u9593\u8cc7\u8a0a\u3002\u6b63\u78ba\u5730\u4f7f\u7528\u9019\u4e9b\u51fd\u6578\u4e0d\u50c5\u80fd\u63d0\u9ad8\u8cc7\u6599\u5eab\u64cd\u4f5c\u7684\u6548\u7387\uff0c\u9084\u80fd\u78ba\u4fdd\u8cc7\u6599\u7684\u6e96\u78ba\u6027\u3002<\/p>\n<p>\u5982\u9700\u9032\u4e00\u6b65\u4e86\u89e3DB2\u6216\u5176\u4ed6\u8cc7\u6599\u5eab\u6280\u8853\uff0c\u60a8\u53ef\u4ee5\u8003\u616e\u4f7f\u7528<a href=\"https:\/\/server.hk\">\u9999\u6e2fVPS<\/a>\u4f86\u9032\u884c\u6e2c\u8a66\u548c\u958b\u767c\uff0c\u9019\u5c07\u70ba\u60a8\u7684\u5b78\u7fd2\u548c\u5be6\u8e10\u63d0\u4f9b\u826f\u597d\u7684\u74b0\u5883\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u4e86\u89e3\u5982\u4f55\u5728DB2\u4e2d\u6b63\u78ba\u53d6\u5f97\u7576\u524d\u6642\u9593\uff0c\u638c\u63e1\u4f7f\u7528SQL\u51fd\u6578\u7684\u6280\u5de7\uff0c\u63d0\u5347\u6578\u64da\u5eab\u64cd\u4f5c\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-60591","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/60591","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=60591"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/60591\/revisions"}],"predecessor-version":[{"id":60592,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/60591\/revisions\/60592"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=60591"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=60591"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=60591"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}