{"id":6093,"date":"2024-11-14T10:11:32","date_gmt":"2024-11-14T02:11:32","guid":{"rendered":"https:\/\/fwq.ai\/blog\/6093\/"},"modified":"2024-11-14T10:11:32","modified_gmt":"2024-11-14T02:11:32","slug":"oracle%e6%97%b6%e9%97%b4%e6%a0%bc%e5%bc%8f%e5%a6%82%e4%bd%95%e8%ae%be%e7%bd%ae","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/6093\/","title":{"rendered":"oracle\u65f6\u95f4\u683c\u5f0f\u5982\u4f55\u8bbe\u7f6e"},"content":{"rendered":"<blockquote><p>\n  oracle\u6570\u636e\u5e93\u4e2d\u7684\u65f6\u95f4\u683c\u5f0f\u53ef\u4ee5\u901a\u8fc7\u4f1a\u8bdd\u7ea7\u6216\u7cfb\u7edf\u7ea7\u8bbe\u7f6e\u6765\u8bbe\u5b9a\u3002\u4f1a\u8bdd\u7ea7\u8bbe\u7f6e\u4f18\u5148\u7ea7\u9ad8\u4e8e\u7cfb\u7edf\u7ea7\u8bbe\u7f6e\u3002oracle\u652f\u6301\u591a\u79cd\u65f6\u95f4\u683c\u5f0f\uff0c\u4f8b\u5982\u201cyyyy-mm-dd hh24:mi:ss\u201d\u548c\u201cdd-mon-yy hh:mi:ss am\/pm\u201d\u3002\u4f1a\u8bdd\u7ea7\u8bbe\u7f6e\u53ef\u4ee5\u901a\u8fc7alter session\u547d\u4ee4\u6216pl\/sql to_char\u51fd\u6570\u8fdb\u884c\uff1b\u7cfb\u7edf\u7ea7\u8bbe\u7f6e\u5219\u901a\u8fc7\u5728init.ora\u6216spfile.ora\u6587\u4ef6\u4e2d\u8bbe\u7f6enls_date_format\u53c2\u6570\u8fdb\u884c\u3002\n<\/p><\/blockquote>\n<p><img decoding=\"async\" src=\"https:\/\/img.php.cn\/upload\/article\/202406\/12\/2024061222451984233.jpg\" class=\"aligncenter\" title=\"oracle\u65f6\u95f4\u683c\u5f0f\u5982\u4f55\u8bbe\u7f6e\u63d2\u56fe\" alt=\"oracle\u65f6\u95f4\u683c\u5f0f\u5982\u4f55\u8bbe\u7f6e\u63d2\u56fe\" \/><\/p>\n<p><strong>Oracle \u65f6\u95f4\u683c\u5f0f\u8bbe\u7f6e<\/strong><\/p>\n<p>\u5728 Oracle \u6570\u636e\u5e93\u4e2d\uff0c\u65f6\u95f4\u683c\u5f0f\u53ef\u4ee5\u901a\u8fc7\u4ee5\u4e0b\u51e0\u79cd\u65b9\u5f0f\u8bbe\u7f6e\uff1a<\/p>\n<p><strong>\u4f1a\u8bdd\u7ea7\u8bbe\u7f6e<\/strong><\/p>\n<ul>\n<li>\u4f7f\u7528 ALTER SESSION \u547d\u4ee4\uff1a<\/li>\n<\/ul>\n<pre>ALTER SESSION SET NLS_DATE_FORMAT = 'YYYY-MM-DD HH24:MI:SS';<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<ul>\n<li>\u4f7f\u7528 PL\/SQL TO_CHAR \u51fd\u6570\uff1a<\/li>\n<\/ul>\n<pre>SELECT TO_CHAR(sysdate, 'YYYY-MM-DD HH24:MI:SS') FROM dual;<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p><strong>\u7cfb\u7edf\u7ea7\u8bbe\u7f6e<\/strong><\/p>\n<ul>\n<li>\u5728 init.ora \u6216 spfile.ora \u914d\u7f6e\u6587\u4ef6\u4e2d\u8bbe\u7f6e NLS_DATE_FORMAT \u53c2\u6570\uff1a<\/li>\n<\/ul>\n<pre>NLS_DATE_FORMAT = 'YYYY-MM-DD HH24:MI:SS'<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<ul>\n<li>\u91cd\u65b0\u542f\u52a8 Oracle \u670d\u52a1\u4ee5\u5e94\u7528\u66f4\u6539\u3002<\/li>\n<\/ul>\n<p><strong>\u4f1a\u8bdd\u7ea7\u548c\u7cfb\u7edf\u7ea7\u8bbe\u7f6e\u7684\u4f18\u5148\u7ea7<\/strong><\/p>\n<ul>\n<li>\u4f1a\u8bdd\u7ea7\u8bbe\u7f6e\u4f18\u5148\u7ea7\u9ad8\u4e8e\u7cfb\u7edf\u7ea7\u8bbe\u7f6e\u3002<\/li>\n<li>\u5982\u679c\u5728\u4f1a\u8bdd\u4e2d\u6ca1\u6709\u8bbe\u7f6e\u65f6\u95f4\u683c\u5f0f\uff0c\u5219\u4f7f\u7528\u7cfb\u7edf\u7ea7\u8bbe\u7f6e\u3002<\/li>\n<\/ul>\n<p><strong>\u652f\u6301\u7684\u65f6\u95f4\u683c\u5f0f<\/strong><\/p>\n<p>Oracle \u652f\u6301\u591a\u79cd\u65f6\u95f4\u683c\u5f0f\uff0c\u5305\u62ec\uff1a<\/p>\n<ul>\n<li>YYYY-MM-DD HH24:MI:SS (ISO 8601)<\/li>\n<li>DD-MON-YY HH:MI:SS AM\/PM<\/li>\n<li>YY-MM-DD HH:MI:SS<\/li>\n<li>HH:MI:SS<\/li>\n<li>DD MON YYYY<\/li>\n<\/ul>\n<p><strong>\u5176\u4ed6\u6ce8\u610f\u4e8b\u9879<\/strong><\/p>\n<ul>\n<li>\u67d0\u4e9b\u51fd\u6570\u548c\u8fc7\u7a0b\u53ef\u80fd\u9700\u8981\u7279\u5b9a\u7684\u65f6\u95f4\u683c\u5f0f\u3002<\/li>\n<li>\u4f7f\u7528 TIMESTAMP \u6570\u636e\u7c7b\u578b\u65f6\uff0c\u65f6\u95f4\u6233\u5b58\u50a8\u5728\u672c\u5730\u65f6\u533a\u4e2d\uff0c\u56e0\u6b64\u53ef\u80fd\u9700\u8981\u5e94\u7528\u65f6\u533a\u8f6c\u6362\u6765\u663e\u793a\u6b63\u786e\u7684\u65f6\u533a\u65f6\u95f4\u3002<\/li>\n<\/ul>\n<p>\u4ee5\u4e0a\u5c31\u662f\u65f6\u95f4\u683c\u5f0f\u5982\u4f55\u8bbe\u7f6e\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>oracle\u6570\u636e\u5e93\u4e2d\u7684\u65f6\u95f4\u683c\u5f0f\u53ef\u4ee5\u901a\u8fc7\u4f1a\u8bdd\u7ea7\u6216\u7cfb\u7edf\u7ea7\u8bbe\u7f6e\u6765\u8bbe\u5b9a\u3002\u4f1a\u8bdd\u7ea7\u8bbe\u7f6e\u4f18\u5148\u7ea7\u9ad8\u4e8e\u7cfb\u7edf\u7ea7\u8bbe\u7f6e\u3002oracle\u652f\u6301\u591a\u79cd\u65f6\u95f4\u683c\u5f0f\uff0c\u4f8b\u5982\u201cyyyy-mm-dd hh24:mi:ss\u201d\u548c\u201cdd-mon-yy hh:mi:ss am\/pm\u201d\u3002\u4f1a\u8bdd\u7ea7\u8bbe\u7f6e\u53ef\u4ee5\u901a\u8fc7alter session\u547d\u4ee4\u6216pl\/sql to_char\u51fd\u6570\u8fdb\u884c\uff1b\u7cfb\u7edf\u7ea7\u8bbe\u7f6e\u5219\u901a\u8fc7\u5728init.ora\u6216spfile.ora\u6587\u4ef6\u4e2d\u8bbe\u7f6enls_date_format\u53c2\u6570\u8fdb\u884c\u3002 Oracle \u65f6\u95f4\u683c\u5f0f\u8bbe\u7f6e \u5728 Oracle \u6570\u636e\u5e93\u4e2d\uff0c\u65f6\u95f4\u683c\u5f0f\u53ef\u4ee5\u901a\u8fc7\u4ee5\u4e0b\u51e0\u79cd\u65b9\u5f0f\u8bbe\u7f6e\uff1a \u4f1a\u8bdd\u7ea7\u8bbe\u7f6e \u4f7f\u7528 ALTER SESSION \u547d\u4ee4\uff1a ALTER SESSION SET NLS_DATE_FORMAT = &#8216;YYYY-MM-DD HH24:MI:SS&#8217;; \u767b\u5f55\u540e\u590d\u5236 \u4f7f\u7528 PL\/SQL TO_CHAR \u51fd\u6570\uff1a SELECT TO_CHAR(sysdate, &#8216;YYYY-MM-DD HH24:MI:SS&#8217;) FROM dual; \u767b\u5f55\u540e\u590d\u5236 \u7cfb\u7edf\u7ea7\u8bbe\u7f6e \u5728 init.ora \u6216 spfile.ora \u914d\u7f6e\u6587\u4ef6\u4e2d\u8bbe\u7f6e NLS_DATE_FORMAT \u53c2\u6570\uff1a NLS_DATE_FORMAT = &#8216;YYYY-MM-DD HH24:MI:SS&#8217; \u767b\u5f55\u540e\u590d\u5236 \u91cd\u65b0\u542f\u52a8 Oracle \u670d\u52a1\u4ee5\u5e94\u7528\u66f4\u6539\u3002 \u4f1a\u8bdd\u7ea7\u548c\u7cfb\u7edf\u7ea7\u8bbe\u7f6e\u7684\u4f18\u5148\u7ea7 \u4f1a\u8bdd\u7ea7\u8bbe\u7f6e\u4f18\u5148\u7ea7\u9ad8\u4e8e\u7cfb\u7edf\u7ea7\u8bbe\u7f6e\u3002 \u5982\u679c\u5728\u4f1a\u8bdd\u4e2d\u6ca1\u6709\u8bbe\u7f6e\u65f6\u95f4\u683c\u5f0f\uff0c\u5219\u4f7f\u7528\u7cfb\u7edf\u7ea7\u8bbe\u7f6e\u3002 \u652f\u6301\u7684\u65f6\u95f4\u683c\u5f0f [&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-6093","post","type-post","status-publish","format-standard","hentry","category-16"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/6093","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=6093"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/6093\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=6093"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=6093"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=6093"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}