{"id":154483,"date":"2024-11-02T16:11:17","date_gmt":"2024-11-02T08:11:17","guid":{"rendered":"https:\/\/server.hk\/cnblog\/154483\/"},"modified":"2024-11-02T16:11:18","modified_gmt":"2024-11-02T08:11:18","slug":"%e5%b0%8d-db2-%e5%8f%96%e5%be%97%e7%95%b6%e5%89%8d%e6%99%82%e9%96%93%e7%9a%84%e6%ad%a3%e7%a2%ba%e8%a7%a3%e6%9e%90","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/154483\/","title":{"rendered":"\u5c0d DB2 \u53d6\u5f97\u7576\u524d\u6642\u9593\u7684\u6b63\u78ba\u89e3\u6790"},"content":{"rendered":"<h1 id=\"%e5%b0%8d-db2-%e5%8f%96%e5%be%97%e7%95%b6%e5%89%8d%e6%99%82%e9%96%93%e7%9a%84%e6%ad%a3%e7%a2%ba%e8%a7%a3%e6%9e%90-iNVIBHzhtc\">\u5c0d DB2 \u53d6\u5f97\u7576\u524d\u6642\u9593\u7684\u6b63\u78ba\u89e3\u6790<\/h1>\n<p>\u5728\u8cc7\u6599\u5eab\u7ba1\u7406\u7cfb\u7d71\u4e2d\uff0c\u6642\u9593\u7684\u8655\u7406\u662f\u975e\u5e38\u91cd\u8981\u7684\u4e00\u74b0\u3002IBM \u7684 DB2 \u8cc7\u6599\u5eab\u7cfb\u7d71\u63d0\u4f9b\u4e86\u591a\u7a2e\u65b9\u6cd5\u4f86\u7372\u53d6\u7576\u524d\u6642\u9593\u3002\u672c\u6587\u5c07\u6df1\u5165\u63a2\u8a0e\u5982\u4f55\u5728 DB2 \u4e2d\u6b63\u78ba\u5730\u53d6\u5f97\u7576\u524d\u6642\u9593\uff0c\u4e26\u63d0\u4f9b\u76f8\u95dc\u7684\u7bc4\u4f8b\u548c\u89e3\u6790\u3002<\/p>\n<h2 id=\"db2-%e4%b8%ad%e7%9a%84%e6%99%82%e9%96%93%e9%a1%9e%e5%9e%8b-iNVIBHzhtc\">DB2 \u4e2d\u7684\u6642\u9593\u985e\u578b<\/h2>\n<p>\u5728 DB2 \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\u7bc4\u570d\u5f9e 00:00:00 \u5230 23:59:59\u3002<\/li>\n<li><strong>DATE<\/strong>\uff1a\u8868\u793a\u65e5\u671f\uff0c\u683c\u5f0f\u70ba YYYY-MM-DD\u3002<\/li>\n<li><strong>TIMESTAMP<\/strong>\uff1a\u540c\u6642\u5305\u542b\u65e5\u671f\u548c\u6642\u9593\uff0c\u683c\u5f0f\u70ba YYYY-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-iNVIBHzhtc\">\u53d6\u5f97\u7576\u524d\u6642\u9593\u7684\u65b9\u6cd5<\/h2>\n<p>\u5728 DB2 \u4e2d\uff0c\u7372\u53d6\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%a8-current-time-iNVIBHzhtc\">1. \u4f7f\u7528 CURRENT TIME<\/h3>\n<p>\u8981\u7372\u53d6\u7576\u524d\u7684\u6642\u9593\uff0c\u53ef\u4ee5\u4f7f\u7528 SQL \u8a9e\u53e5\u4e2d\u7684 <code>CURRENT TIME<\/code>\u3002\u9019\u5c07\u8fd4\u56de\u7576\u524d\u7684\u6642\u9593\u503c\u3002<\/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\u4f8b\u5982\uff1a<code>15:30:45<\/code>\u3002<\/p>\n<h3 id=\"2-%e4%bd%bf%e7%94%a8-current-date-iNVIBHzhtc\">2. \u4f7f\u7528 CURRENT DATE<\/h3>\n<p>\u5982\u679c\u9700\u8981\u7372\u53d6\u7576\u524d\u7684\u65e5\u671f\uff0c\u53ef\u4ee5\u4f7f\u7528 <code>CURRENT DATE<\/code>\u3002\u9019\u5c07\u8fd4\u56de\u7576\u524d\u7684\u65e5\u671f\u503c\u3002<\/p>\n<pre><code>SELECT CURRENT DATE AS CurrentDate FROM SYSIBM.SYSDUMMY1;<\/code><\/pre>\n<p>\u9019\u500b\u67e5\u8a62\u5c07\u8fd4\u56de\u7576\u524d\u7684\u65e5\u671f\uff0c\u4f8b\u5982\uff1a<code>2023-10-01<\/code>\u3002<\/p>\n<h3 id=\"3-%e4%bd%bf%e7%94%a8-current-timestamp-iNVIBHzhtc\">3. \u4f7f\u7528 CURRENT TIMESTAMP<\/h3>\n<p>\u82e5\u9700\u8981\u540c\u6642\u7372\u53d6\u7576\u524d\u7684\u65e5\u671f\u548c\u6642\u9593\uff0c\u53ef\u4ee5\u4f7f\u7528 <code>CURRENT TIMESTAMP<\/code>\u3002\u9019\u5c07\u8fd4\u56de\u7576\u524d\u7684\u6642\u9593\u6233\u8a18\u3002<\/p>\n<pre><code>SELECT CURRENT TIMESTAMP AS CurrentTimestamp FROM SYSIBM.SYSDUMMY1;<\/code><\/pre>\n<p>\u9019\u500b\u67e5\u8a62\u5c07\u8fd4\u56de\u985e\u4f3c\u65bc <code>2023-10-01 15:30:45<\/code> \u7684\u7d50\u679c\u3002<\/p>\n<h2 id=\"%e4%bd%bf%e7%94%a8%e7%af%84%e4%be%8b-iNVIBHzhtc\">\u4f7f\u7528\u7bc4\u4f8b<\/h2>\n<p>\u4ee5\u4e0b\u662f\u4e00\u500b\u5b8c\u6574\u7684\u7bc4\u4f8b\uff0c\u5c55\u793a\u5982\u4f55\u5728 DB2 \u4e2d\u4f7f\u7528\u4e0a\u8ff0\u65b9\u6cd5\u4f86\u7372\u53d6\u7576\u524d\u7684\u6642\u9593\u3001\u65e5\u671f\u548c\u6642\u9593\u6233\u8a18\uff1a<\/p>\n<pre><code>\nSELECT \n    CURRENT TIME AS CurrentTime, \n    CURRENT DATE AS CurrentDate, \n    CURRENT TIMESTAMP AS CurrentTimestamp \nFROM SYSIBM.SYSDUMMY1;\n<\/code><\/pre>\n<p>\u57f7\u884c\u9019\u500b\u67e5\u8a62\u5f8c\uff0c\u60a8\u5c07\u7372\u5f97\u4e09\u500b\u6b04\u4f4d\u7684\u7d50\u679c\uff0c\u5206\u5225\u986f\u793a\u7576\u524d\u7684\u6642\u9593\u3001\u65e5\u671f\u548c\u6642\u9593\u6233\u8a18\u3002<\/p>\n<h2 id=\"%e6%b3%a8%e6%84%8f%e4%ba%8b%e9%a0%85-iNVIBHzhtc\">\u6ce8\u610f\u4e8b\u9805<\/h2>\n<p>\u5728\u4f7f\u7528 DB2 \u7372\u53d6\u7576\u524d\u6642\u9593\u6642\uff0c\u9700\u6ce8\u610f\u4ee5\u4e0b\u5e7e\u9ede\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\u5b9a\u6b63\u78ba\u3002<\/li>\n<li>\u5728\u4e0d\u540c\u7684 DB2 \u7248\u672c\u4e2d\uff0c\u53ef\u80fd\u6703\u6709\u4e9b\u5fae\u7684\u5dee\u7570\uff0c\u5efa\u8b70\u67e5\u95b1\u76f8\u61c9\u7248\u672c\u7684\u5b98\u65b9\u6587\u6a94\u4ee5\u7372\u53d6\u6700\u65b0\u8cc7\u8a0a\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\u5730\u5340\u7684\u61c9\u7528\u4e2d\u3002<\/li>\n<\/ul>\n<h2 id=\"%e7%b8%bd%e7%b5%90-iNVIBHzhtc\">\u7e3d\u7d50<\/h2>\n<p>\u5728 DB2 \u4e2d\uff0c\u7372\u53d6\u7576\u524d\u6642\u9593\u7684\u65b9\u6cd5\u76f8\u5c0d\u7c21\u55ae\uff0c\u4e3b\u8981\u900f\u904e <code>CURRENT TIME<\/code>\u3001<code>CURRENT DATE<\/code> \u548c <code>CURRENT TIMESTAMP<\/code> \u4f86\u5be6\u73fe\u3002\u9019\u4e9b\u529f\u80fd\u5c0d\u65bc\u8cc7\u6599\u5eab\u7684\u6642\u9593\u7ba1\u7406\u548c\u6578\u64da\u8a18\u9304\u81f3\u95dc\u91cd\u8981\u3002\u82e5\u60a8\u9700\u8981\u9032\u4e00\u6b65\u4e86\u89e3\u5982\u4f55\u5728\u9999\u6e2f\u7684\u4f3a\u670d\u5668\u4e0a\u4f7f\u7528\u9019\u4e9b\u529f\u80fd\uff0c\u8acb\u53c3\u8003\u6211\u5011\u7684 <a href=\"https:\/\/server.hk\">VPS<\/a> \u89e3\u6c7a\u65b9\u6848\uff0c\u6216\u4e86\u89e3\u66f4\u591a\u95dc\u65bc <a href=\"https:\/\/server.hk\">\u9999\u6e2f\u4f3a\u670d\u5668<\/a> \u7684\u8cc7\u8a0a\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u4e86\u89e3\u5982\u4f55\u5728 DB2 \u4e2d\u6b63\u78ba\u53d6\u5f97\u7576\u524d\u6642\u9593\uff0c\u78ba\u4fdd\u6642\u9593\u683c\u5f0f\u548c\u6642\u5340\u8a2d\u5b9a\u7b26\u5408\u9700\u6c42\uff0c\u63d0\u5347\u6578\u64da\u6e96\u78ba\u6027\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-154483","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/154483","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=154483"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/154483\/revisions"}],"predecessor-version":[{"id":154484,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/154483\/revisions\/154484"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=154483"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=154483"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=154483"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}