{"id":154485,"date":"2024-11-02T16:12:20","date_gmt":"2024-11-02T08:12:20","guid":{"rendered":"https:\/\/server.hk\/cnblog\/154485\/"},"modified":"2024-11-02T16:12:22","modified_gmt":"2024-11-02T08:12:22","slug":"%e5%b0%8d-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%e7%90%86%e8%a7%a3%ef%bc%9f","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/154485\/","title":{"rendered":"\u5c0d DB2 \u53d6\u5f97\u7576\u524d\u6642\u9593\u5982\u4f55\u7406\u89e3\uff1f"},"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%e5%a6%82%e4%bd%95%e7%90%86%e8%a7%a3%ef%bc%9f-cMfcsXFZcC\">\u5c0d DB2 \u53d6\u5f97\u7576\u524d\u6642\u9593\u5982\u4f55\u7406\u89e3\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 \u7684 DB2 \u8cc7\u6599\u5eab\u7cfb\u7d71\u63d0\u4f9b\u4e86\u591a\u7a2e\u65b9\u6cd5\u4f86\u7372\u53d6\u7576\u524d\u6642\u9593\uff0c\u9019\u5c0d\u65bc\u8a31\u591a\u61c9\u7528\u7a0b\u5f0f\u4f86\u8aaa\u90fd\u662f\u5fc5\u4e0d\u53ef\u5c11\u7684\u3002\u672c\u6587\u5c07\u6df1\u5165\u63a2\u8a0e\u5982\u4f55\u5728 DB2 \u4e2d\u53d6\u5f97\u7576\u524d\u6642\u9593\uff0c\u4e26\u89e3\u91cb\u5176\u80cc\u5f8c\u7684\u6982\u5ff5\u548c\u61c9\u7528\u3002<\/p>\n<h2 id=\"db2-%e4%b8%ad%e7%9a%84%e6%99%82%e9%96%93%e9%a1%9e%e5%9e%8b-cMfcsXFZcC\">DB2 \u4e2d\u7684\u6642\u9593\u985e\u578b<\/h2>\n<p>\u5728 DB2 \u4e2d\uff0c\u6642\u9593\u7684\u8868\u793a\u4e3b\u8981\u6709\u4e09\u7a2e\u8cc7\u6599\u985e\u578b\uff1a<code>TIME<\/code>\u3001<code>DATE<\/code> \u548c <code>TIMESTAMP<\/code>\u3002\u9019\u4e9b\u985e\u578b\u5404\u81ea\u6709\u4e0d\u540c\u7684\u7528\u9014\uff1a<\/p>\n<ul>\n<li><code>TIME<\/code>\uff1a\u8868\u793a\u4e00\u5929\u4e2d\u7684\u6642\u9593\uff0c\u683c\u5f0f\u70ba HH:MM:SS\u3002<\/li>\n<li><code>DATE<\/code>\uff1a\u8868\u793a\u65e5\u671f\uff0c\u683c\u5f0f\u70ba YYYY-MM-DD\u3002<\/li>\n<li><code>TIMESTAMP<\/code>\uff1a\u540c\u6642\u8868\u793a\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-cMfcsXFZcC\">\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\u662f\u4f7f\u7528\u5167\u5efa\u51fd\u6578\u3002\u4ee5\u4e0b\u662f\u5e7e\u500b\u5e38\u7528\u7684\u51fd\u6578\uff1a<\/p>\n<h3 id=\"1-current-time-cMfcsXFZcC\">1. CURRENT TIME<\/h3>\n<p>\u4f7f\u7528 <code>CURRENT TIME<\/code> \u51fd\u6578\u53ef\u4ee5\u7372\u53d6\u7576\u524d\u7684\u6642\u9593\u3002\u9019\u500b\u51fd\u6578\u8fd4\u56de\u7684\u7d50\u679c\u662f <code>TIME<\/code> \u985e\u578b\u3002<\/p>\n<pre><code>SELECT CURRENT TIME AS CurrentTime FROM SYSIBM.SYSDUMMY1;<\/code><\/pre>\n<h3 id=\"2-current-date-cMfcsXFZcC\">2. 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> \u51fd\u6578\u3002\u9019\u500b\u51fd\u6578\u8fd4\u56de\u7684\u7d50\u679c\u662f <code>DATE<\/code> \u985e\u578b\u3002<\/p>\n<pre><code>SELECT CURRENT DATE AS CurrentDate FROM SYSIBM.SYSDUMMY1;<\/code><\/pre>\n<h3 id=\"3-current-timestamp-cMfcsXFZcC\">3. 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> \u51fd\u6578\u3002\u9019\u500b\u51fd\u6578\u8fd4\u56de\u7684\u7d50\u679c\u662f <code>TIMESTAMP<\/code> \u985e\u578b\u3002<\/p>\n<pre><code>SELECT CURRENT TIMESTAMP AS CurrentTimestamp FROM SYSIBM.SYSDUMMY1;<\/code><\/pre>\n<h2 id=\"%e6%99%82%e9%96%93%e7%9a%84%e6%87%89%e7%94%a8%e5%a0%b4%e6%99%af-cMfcsXFZcC\">\u6642\u9593\u7684\u61c9\u7528\u5834\u666f<\/h2>\n<p>\u5728\u5be6\u969b\u61c9\u7528\u4e2d\uff0c\u7372\u53d6\u7576\u524d\u6642\u9593\u7684\u9700\u6c42\u975e\u5e38\u5ee3\u6cdb\u3002\u4f8b\u5982\uff1a<\/p>\n<ul>\n<li>\u5728\u4ea4\u6613\u7cfb\u7d71\u4e2d\uff0c\u8a18\u9304\u4ea4\u6613\u7684\u6642\u9593\u6233\uff0c\u4ee5\u4fbf\u65bc\u5f8c\u7e8c\u67e5\u8a62\u548c\u5be9\u8a08\u3002<\/li>\n<li>\u5728\u65e5\u8a8c\u7cfb\u7d71\u4e2d\uff0c\u6a19\u8a18\u4e8b\u4ef6\u767c\u751f\u7684\u6642\u9593\uff0c\u4ee5\u4fbf\u65bc\u8ffd\u8e64\u548c\u5206\u6790\u3002<\/li>\n<li>\u5728\u5831\u544a\u751f\u6210\u4e2d\uff0c\u6839\u64da\u7576\u524d\u6642\u9593\u751f\u6210\u52d5\u614b\u5831\u544a\u3002<\/li>\n<\/ul>\n<h2 id=\"%e6%b3%a8%e6%84%8f%e4%ba%8b%e9%a0%85-cMfcsXFZcC\">\u6ce8\u610f\u4e8b\u9805<\/h2>\n<p>\u5728\u4f7f\u7528 DB2 \u7372\u53d6\u7576\u524d\u6642\u9593\u6642\uff0c\u9700\u8981\u6ce8\u610f\u4ee5\u4e0b\u5e7e\u9ede\uff1a<\/p>\n<ul>\n<li>DB2 \u7684\u6642\u9593\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\u5206\u4f48\u5f0f\u7cfb\u7d71\u4e2d\uff0c\u53ef\u80fd\u9700\u8981\u8003\u616e\u6642\u5340\u7684\u5f71\u97ff\uff0c\u7279\u5225\u662f\u5728\u8de8\u570b\u696d\u52d9\u4e2d\u3002<\/li>\n<li>\u4f7f\u7528 <code>CURRENT TIMESTAMP<\/code> \u6642\uff0c\u8fd4\u56de\u7684\u6642\u9593\u7cbe\u5ea6\u53ef\u4ee5\u9054\u5230\u5fae\u79d2\u7d1a\u5225\uff0c\u9019\u5c0d\u65bc\u67d0\u4e9b\u61c9\u7528\u4f86\u8aaa\u662f\u975e\u5e38\u6709\u7528\u7684\u3002<\/li>\n<\/ul>\n<h2 id=\"%e7%b8%bd%e7%b5%90-cMfcsXFZcC\">\u7e3d\u7d50<\/h2>\n<p>\u5728 DB2 \u4e2d\uff0c\u7372\u53d6\u7576\u524d\u6642\u9593\u7684\u65b9\u5f0f\u591a\u6a23\uff0c\u4e3b\u8981\u901a\u904e <code>CURRENT TIME<\/code>\u3001<code>CURRENT DATE<\/code> \u548c <code>CURRENT TIMESTAMP<\/code> \u51fd\u6578\u4f86\u5be6\u73fe\u3002\u9019\u4e9b\u51fd\u6578\u4e0d\u50c5\u80fd\u5920\u63d0\u4f9b\u6e96\u78ba\u7684\u6642\u9593\u8cc7\u8a0a\uff0c\u9084\u80fd\u5920\u5728\u5404\u7a2e\u61c9\u7528\u5834\u666f\u4e2d\u767c\u63ee\u91cd\u8981\u4f5c\u7528\u3002\u5c0d\u65bc\u9700\u8981\u9ad8\u6548\u80fd\u548c\u7a69\u5b9a\u6027\u7684\u61c9\u7528\uff0c\u9078\u64c7\u5408\u9069\u7684 <a href=\"https:\/\/server.hk\">VPS<\/a> \u89e3\u6c7a\u65b9\u6848\u4e5f\u662f\u81f3\u95dc\u91cd\u8981\u7684\uff0c\u9019\u6a23\u53ef\u4ee5\u78ba\u4fdd\u8cc7\u6599\u5eab\u7684\u904b\u884c\u74b0\u5883\u7a69\u5b9a\u53ef\u9760\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u4e86\u89e3\u5982\u4f55\u5728 DB2 \u4e2d\u7372\u53d6\u7576\u524d\u6642\u9593\uff0c\u638c\u63e1\u6642\u9593\u51fd\u6578\u7684\u4f7f\u7528\uff0c\u63d0\u5347\u6578\u64da\u5eab\u64cd\u4f5c\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-154485","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/154485","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=154485"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/154485\/revisions"}],"predecessor-version":[{"id":154486,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/154485\/revisions\/154486"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=154485"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=154485"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=154485"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}