{"id":6116,"date":"2024-11-14T12:54:16","date_gmt":"2024-11-14T04:54:16","guid":{"rendered":"https:\/\/fwq.ai\/blog\/6116\/"},"modified":"2024-11-14T12:54:16","modified_gmt":"2024-11-14T04:54:16","slug":"oracle-date%e7%b1%bb%e5%9e%8b%e5%a6%82%e4%bd%95%e6%9f%a5%e8%af%a2","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/6116\/","title":{"rendered":"oracle date\u7c7b\u578b\u5982\u4f55\u67e5\u8be2"},"content":{"rendered":"<blockquote><p>\n  \u67e5\u8be2 oracle date \u7c7b\u578b\u6709\u4ee5\u4e0b\u65b9\u6cd5\uff1a\u7b49\u503c\u67e5\u8be2\u3002\u8303\u56f4\u67e5\u8be2\uff0c\u4f7f\u7528 between \u548c and \u64cd\u4f5c\u7b26\u3002\u5927\u4e8e\/\u5c0f\u4e8e\u67e5\u8be2\u3002\u51fd\u6570\u67e5\u8be2\uff0c\u4f7f\u7528 extract \u51fd\u6570\u83b7\u53d6\u65e5\u671f\u90e8\u5206\u3002between sysdate \u67e5\u8be2\u3002\u9ad8\u7ea7\u67e5\u8be2\u5305\u62ec\u65e5\u671f\u8f6c\u6362\u3001\u65e5\u671f\u52a0\u51cf\u548c\u65f6\u533a\u8f6c\u6362\u3002\n<\/p><\/blockquote>\n<p><img decoding=\"async\" src=\"https:\/\/img.php.cn\/upload\/article\/202406\/13\/2024061300152490303.jpg\" class=\"aligncenter\" title=\"oracle date\u7c7b\u578b\u5982\u4f55\u67e5\u8be2\u63d2\u56fe\" alt=\"oracle date\u7c7b\u578b\u5982\u4f55\u67e5\u8be2\u63d2\u56fe\" \/><\/p>\n<p><strong>Oracle DATE \u7c7b\u578b\u67e5\u8be2\u65b9\u6cd5<\/strong><\/p>\n<p><strong>\u7b80\u4ecb\uff1a<\/strong><br \/>Oracle DATE \u6570\u636e\u7c7b\u578b\u7528\u4e8e\u5b58\u50a8\u65e5\u671f\u548c\u65f6\u95f4\u4fe1\u606f\u3002\u67e5\u8be2 DATE \u7c7b\u578b\u65f6\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u65b9\u6cd5\uff1a<\/p>\n<p><strong>1. \u7b49\u503c\u67e5\u8be2\uff1a<\/strong><br \/>\u4f7f\u7528\u7b49\u53f7\uff08=\uff09\u6216\u4e0d\u7b49\u53f7\uff08\uff09\u6bd4\u8f83\u65e5\u671f\u3002\u4f8b\u5982\uff1a<\/p>\n<pre>SELECT * FROM my_table WHERE date_field = '2023-03-08';\nSELECT * FROM my_table WHERE date_field &lt;&gt; '2023-04-10';<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p><strong>2. \u8303\u56f4\u67e5\u8be2\uff1a<\/strong><br \/>\u4f7f\u7528 BETWEEN \u548c AND \u64cd\u4f5c\u7b26\u6307\u5b9a\u65e5\u671f\u8303\u56f4\u3002\u4f8b\u5982\uff1a<\/p>\n<pre>SELECT * FROM my_table WHERE date_field BETWEEN '2023-03-01' AND '2023-03-31';<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p><strong>3. \u5927\u4e8e\/\u5c0f\u4e8e\u67e5\u8be2\uff1a<\/strong><br \/>\u4f7f\u7528\u5927\u4e8e\u53f7\uff08&gt;\uff09\u6216\u5c0f\u4e8e\u53f7\uff08<\/p>\n<pre>SELECT * FROM my_table WHERE date_field &gt; '2023-02-28';\nSELECT * FROM my_table WHERE date_field &lt; '2023-04-15';<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p><strong>4. \u51fd\u6570\u67e5\u8be2\uff1a<\/strong><br \/>\u4f7f\u7528 EXTRACT \u51fd\u6570\u83b7\u53d6\u65e5\u671f\u7684\u7279\u5b9a\u90e8\u5206\uff08\u4f8b\u5982\uff0c\u5e74\u3001\u6708\u3001\u65e5\uff09\u3002\u4f8b\u5982\uff1a<\/p>\n<pre>SELECT EXTRACT(YEAR FROM date_field) FROM my_table;\nSELECT EXTRACT(MONTH FROM date_field) FROM my_table;<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p><strong>5. BETWEEN SYSDATE \u67e5\u8be2\uff1a<\/strong><br \/>\u5c06 BETWEEN \u4e0e SYSDATE \u51fd\u6570\u7ed3\u5408\u4f7f\u7528\uff0c\u4ee5\u83b7\u53d6\u7279\u5b9a\u65e5\u671f\u8303\u56f4\u5185\u7684\u8bb0\u5f55\u3002\u4f8b\u5982\uff1a<\/p>\n<pre>SELECT * FROM my_table WHERE date_field BETWEEN SYSDATE - 1 AND SYSDATE + 1;<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p><strong>\u9ad8\u7ea7\u67e5\u8be2\uff1a<\/strong><\/p>\n<ul>\n<li> <strong>\u65e5\u671f\u8f6c\u6362\uff1a<\/strong>\u53ef\u4ee5\u4f7f\u7528 TO_DATE \u51fd\u6570\u5c06\u5b57\u7b26\u4e32\u8f6c\u6362\u4e3a DATE \u7c7b\u578b\u3002<\/li>\n<li> <strong>\u65e5\u671f\u52a0\u51cf\uff1a<\/strong>\u53ef\u4ee5\u4f7f\u7528 + \u548c &#8211; \u64cd\u4f5c\u7b26\u5bf9\u65e5\u671f\u8fdb\u884c\u52a0\u51cf\u64cd\u4f5c\u3002\u4f8b\u5982\uff0cdate_field + 3 \u5c06\u65e5\u671f\u5411\u540e\u63a8\u79fb 3 \u5929\u3002<\/li>\n<li> <strong>\u65f6\u533a\u8f6c\u6362\uff1a<\/strong>\u53ef\u4ee5\u4f7f\u7528 AT TIME ZONE \u5b50\u53e5\u5c06\u65e5\u671f\u8f6c\u6362\u4e3a\u7279\u5b9a\u65f6\u533a\u3002\u4f8b\u5982\uff0cdate_field AT TIME ZONE &#8216;Europe\/Berlin&#8217; \u5c06\u65e5\u671f\u8f6c\u6362\u4e3a\u67cf\u6797\u65f6\u533a\u3002<\/li>\n<\/ul>\n<p>\u4ee5\u4e0a\u5c31\u662f date\u7c7b\u578b\u5982\u4f55\u67e5\u8be2\u7684\u8be6\u7ec6\u5185\u5bb9\uff0c\u66f4\u591a\u8bf7\u5173\u6ce8\u7c73\u4e91\u7f51\u5176\u5b83\u76f8\u5173\u6587\u7ae0\uff01<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u67e5\u8be2 oracle date \u7c7b\u578b\u6709\u4ee5\u4e0b\u65b9\u6cd5\uff1a\u7b49\u503c\u67e5\u8be2\u3002\u8303\u56f4\u67e5\u8be2\uff0c\u4f7f\u7528 between \u548c and \u64cd\u4f5c\u7b26\u3002\u5927\u4e8e\/\u5c0f\u4e8e\u67e5\u8be2\u3002\u51fd\u6570\u67e5\u8be2\uff0c\u4f7f\u7528 extract \u51fd\u6570\u83b7\u53d6\u65e5\u671f\u90e8\u5206\u3002between sysdate \u67e5\u8be2\u3002\u9ad8\u7ea7\u67e5\u8be2\u5305\u62ec\u65e5\u671f\u8f6c\u6362\u3001\u65e5\u671f\u52a0\u51cf\u548c\u65f6\u533a\u8f6c\u6362\u3002 Oracle DATE \u7c7b\u578b\u67e5\u8be2\u65b9\u6cd5 \u7b80\u4ecb\uff1aOracle DATE \u6570\u636e\u7c7b\u578b\u7528\u4e8e\u5b58\u50a8\u65e5\u671f\u548c\u65f6\u95f4\u4fe1\u606f\u3002\u67e5\u8be2 DATE \u7c7b\u578b\u65f6\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u65b9\u6cd5\uff1a 1. \u7b49\u503c\u67e5\u8be2\uff1a\u4f7f\u7528\u7b49\u53f7\uff08=\uff09\u6216\u4e0d\u7b49\u53f7\uff08\uff09\u6bd4\u8f83\u65e5\u671f\u3002\u4f8b\u5982\uff1a SELECT * FROM my_table WHERE date_field = &#8216;2023-03-08&#8217;; SELECT * FROM my_table WHERE date_field &lt;&gt; &#8216;2023-04-10&#8217;; \u767b\u5f55\u540e\u590d\u5236 2. \u8303\u56f4\u67e5\u8be2\uff1a\u4f7f\u7528 BETWEEN \u548c AND \u64cd\u4f5c\u7b26\u6307\u5b9a\u65e5\u671f\u8303\u56f4\u3002\u4f8b\u5982\uff1a SELECT * FROM my_table WHERE date_field BETWEEN &#8216;2023-03-01&#8217; AND &#8216;2023-03-31&#8217;; [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[16],"tags":[],"class_list":["post-6116","post","type-post","status-publish","format-standard","hentry","category-16"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/6116","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/comments?post=6116"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/6116\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=6116"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=6116"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=6116"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}