{"id":179652,"date":"2024-11-09T03:40:21","date_gmt":"2024-11-08T19:40:21","guid":{"rendered":"https:\/\/server.hk\/cnblog\/179652\/"},"modified":"2024-11-09T03:40:22","modified_gmt":"2024-11-08T19:40:22","slug":"%e5%a6%82%e4%bd%95%e5%9c%a8-oracle-%e8%a1%a8%e4%b8%ad%e6%8f%92%e5%85%a5%e7%b3%bb%e7%b5%b1%e6%99%82%e9%96%93","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/179652\/","title":{"rendered":"\u5982\u4f55\u5728 Oracle \u8868\u4e2d\u63d2\u5165\u7cfb\u7d71\u6642\u9593"},"content":{"rendered":"<h1 id=\"%e5%a6%82%e4%bd%95%e5%9c%a8-oracle-%e8%a1%a8%e4%b8%ad%e6%8f%92%e5%85%a5%e7%b3%bb%e7%b5%b1%e6%99%82%e9%96%93-fYWxjJkwMC\">\u5982\u4f55\u5728 Oracle \u8868\u4e2d\u63d2\u5165\u7cfb\u7d71\u6642\u9593<\/h1>\n<p>\u5728\u8cc7\u6599\u5eab\u7ba1\u7406\u4e2d\uff0c\u6642\u9593\u6233\u8a18\u7684\u4f7f\u7528\u662f\u975e\u5e38\u91cd\u8981\u7684\uff0c\u5c24\u5176\u662f\u5728\u8a18\u9304\u6578\u64da\u8b8a\u66f4\u548c\u4e8b\u4ef6\u6642\u3002Oracle \u8cc7\u6599\u5eab\u63d0\u4f9b\u4e86\u591a\u7a2e\u65b9\u6cd5\u4f86\u63d2\u5165\u7cfb\u7d71\u6642\u9593\uff0c\u9019\u5c0d\u65bc\u958b\u767c\u8005\u548c\u8cc7\u6599\u5eab\u7ba1\u7406\u54e1\u4f86\u8aaa\u90fd\u662f\u4e00\u9805\u57fa\u672c\u6280\u80fd\u3002\u672c\u6587\u5c07\u63a2\u8a0e\u5982\u4f55\u5728 Oracle \u8868\u4e2d\u63d2\u5165\u7cfb\u7d71\u6642\u9593\uff0c\u4e26\u63d0\u4f9b\u76f8\u95dc\u7684\u7bc4\u4f8b\u548c\u4ee3\u78bc\u3002<\/p>\n<h2 id=\"oracle-%e4%b8%ad%e7%9a%84%e6%99%82%e9%96%93%e9%a1%9e%e5%9e%8b-fYWxjJkwMC\">Oracle \u4e2d\u7684\u6642\u9593\u985e\u578b<\/h2>\n<p>\u5728 Oracle \u4e2d\uff0c\u4e3b\u8981\u6709\u5e7e\u7a2e\u6642\u9593\u985e\u578b\u53ef\u4f9b\u4f7f\u7528\uff1a<\/p>\n<ul>\n<li><strong>DATE<\/strong>: \u5305\u542b\u65e5\u671f\u548c\u6642\u9593\uff0c\u7cbe\u78ba\u5230\u79d2\u3002<\/li>\n<li><strong>TIMESTAMP<\/strong>: \u5305\u542b\u65e5\u671f\u548c\u6642\u9593\uff0c\u7cbe\u78ba\u5230\u5fae\u79d2\u3002<\/li>\n<li><strong>TIMESTAMP WITH TIME ZONE<\/strong>: \u5305\u542b\u6642\u5340\u4fe1\u606f\u7684\u6642\u9593\u6233\u3002<\/li>\n<li><strong>TIMESTAMP WITH LOCAL TIME ZONE<\/strong>: \u6839\u64da\u6703\u8a71\u7684\u6642\u5340\u986f\u793a\u7684\u6642\u9593\u6233\u3002<\/li>\n<\/ul>\n<p>\u6839\u64da\u9700\u6c42\u7684\u4e0d\u540c\uff0c\u958b\u767c\u8005\u53ef\u4ee5\u9078\u64c7\u5408\u9069\u7684\u6642\u9593\u985e\u578b\u4f86\u5b58\u5132\u7cfb\u7d71\u6642\u9593\u3002<\/p>\n<h2 id=\"%e6%8f%92%e5%85%a5%e7%b3%bb%e7%b5%b1%e6%99%82%e9%96%93%e7%9a%84%e5%9f%ba%e6%9c%ac%e6%96%b9%e6%b3%95-fYWxjJkwMC\">\u63d2\u5165\u7cfb\u7d71\u6642\u9593\u7684\u57fa\u672c\u65b9\u6cd5<\/h2>\n<p>\u5728 Oracle \u4e2d\uff0c\u53ef\u4ee5\u4f7f\u7528 <code>SYSDATE<\/code> \u6216 <code>SYSTIMESTAMP<\/code> \u4f86\u7372\u53d6\u7576\u524d\u7684\u7cfb\u7d71\u6642\u9593\u3002\u4ee5\u4e0b\u662f\u9019\u5169\u500b\u51fd\u6578\u7684\u7c21\u8981\u8aaa\u660e\uff1a<\/p>\n<ul>\n<li><code>SYSDATE<\/code>: \u8fd4\u56de\u7576\u524d\u7684\u65e5\u671f\u548c\u6642\u9593\uff0c\u683c\u5f0f\u70ba <code>DD-MON-YY HH:MI:SS<\/code>\u3002<\/li>\n<li><code>SYSTIMESTAMP<\/code>: \u8fd4\u56de\u7576\u524d\u7684\u65e5\u671f\u548c\u6642\u9593\uff0c\u5305\u542b\u6642\u5340\u4fe1\u606f\uff0c\u683c\u5f0f\u70ba <code>YYYY-MM-DD HH24:MI:SS.FF TZR<\/code>\u3002<\/li>\n<\/ul>\n<h2 id=\"%e7%af%84%e4%be%8b%ef%bc%9a%e5%9c%a8-oracle-%e8%a1%a8%e4%b8%ad%e6%8f%92%e5%85%a5%e7%b3%bb%e7%b5%b1%e6%99%82%e9%96%93-fYWxjJkwMC\">\u7bc4\u4f8b\uff1a\u5728 Oracle \u8868\u4e2d\u63d2\u5165\u7cfb\u7d71\u6642\u9593<\/h2>\n<p>\u5047\u8a2d\u6211\u5011\u6709\u4e00\u500b\u540d\u70ba <code>events<\/code> \u7684\u8868\uff0c\u7d50\u69cb\u5982\u4e0b\uff1a<\/p>\n<pre><code>CREATE TABLE events (\n    id NUMBER PRIMARY KEY,\n    event_name VARCHAR2(100),\n    event_time TIMESTAMP\n);<\/code><\/pre>\n<p>\u6211\u5011\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b SQL \u8a9e\u53e5\u5c07\u7cfb\u7d71\u6642\u9593\u63d2\u5165\u5230 <code>events<\/code> \u8868\u4e2d\uff1a<\/p>\n<pre><code>INSERT INTO events (id, event_name, event_time)\nVALUES (1, '\u7cfb\u7d71\u555f\u52d5', SYSTIMESTAMP);<\/code><\/pre>\n<p>\u5728\u9019\u500b\u4f8b\u5b50\u4e2d\uff0c\u6211\u5011\u4f7f\u7528 <code>SYSTIMESTAMP<\/code> \u51fd\u6578\u4f86\u7372\u53d6\u7576\u524d\u7684\u7cfb\u7d71\u6642\u9593\uff0c\u4e26\u5c07\u5176\u63d2\u5165\u5230 <code>event_time<\/code> \u6b04\u4f4d\u4e2d\u3002<\/p>\n<h2 id=\"%e4%bd%bf%e7%94%a8%e8%a7%b8%e7%99%bc%e5%99%a8%e8%87%aa%e5%8b%95%e6%8f%92%e5%85%a5%e7%b3%bb%e7%b5%b1%e6%99%82%e9%96%93-fYWxjJkwMC\">\u4f7f\u7528\u89f8\u767c\u5668\u81ea\u52d5\u63d2\u5165\u7cfb\u7d71\u6642\u9593<\/h2>\n<p>\u9664\u4e86\u624b\u52d5\u63d2\u5165\u7cfb\u7d71\u6642\u9593\u5916\uff0c\u9084\u53ef\u4ee5\u4f7f\u7528\u89f8\u767c\u5668\u81ea\u52d5\u586b\u5145\u6642\u9593\u6233\u3002\u4ee5\u4e0b\u662f\u4e00\u500b\u793a\u4f8b\uff0c\u7576\u63d2\u5165\u65b0\u8a18\u9304\u6642\uff0c\u81ea\u52d5\u5c07\u7576\u524d\u6642\u9593\u63d2\u5165\u5230 <code>event_time<\/code> \u6b04\u4f4d\uff1a<\/p>\n<pre><code>CREATE OR REPLACE TRIGGER trg_set_event_time\nBEFORE INSERT ON events\nFOR EACH ROW\nBEGIN\n    :new.event_time := SYSTIMESTAMP;\nEND;<\/code><\/pre>\n<p>\u9019\u6a23\uff0c\u6bcf\u7576\u6709\u65b0\u8a18\u9304\u63d2\u5165\u5230 <code>events<\/code> \u8868\u4e2d\u6642\uff0c<code>event_time<\/code> \u6b04\u4f4d\u5c07\u81ea\u52d5\u586b\u5165\u7576\u524d\u7684\u7cfb\u7d71\u6642\u9593\u3002<\/p>\n<h2 id=\"%e7%b5%90%e8%ab%96-fYWxjJkwMC\">\u7d50\u8ad6<\/h2>\n<p>\u5728 Oracle \u4e2d\u63d2\u5165\u7cfb\u7d71\u6642\u9593\u662f\u4e00\u500b\u7c21\u55ae\u800c\u91cd\u8981\u7684\u64cd\u4f5c\u3002\u7121\u8ad6\u662f\u624b\u52d5\u63d2\u5165\u9084\u662f\u4f7f\u7528\u89f8\u767c\u5668\u81ea\u52d5\u586b\u5145\uff0c\u6b63\u78ba\u5730\u7ba1\u7406\u6642\u9593\u6233\u8a18\u5c0d\u65bc\u6578\u64da\u7684\u5b8c\u6574\u6027\u548c\u6e96\u78ba\u6027\u81f3\u95dc\u91cd\u8981\u3002\u900f\u904e\u672c\u6587\u7684\u4ecb\u7d39\uff0c\u60a8\u61c9\u8a72\u80fd\u5920\u719f\u7df4\u5730\u5728 Oracle \u8868\u4e2d\u63d2\u5165\u7cfb\u7d71\u6642\u9593\uff0c\u4e26\u6839\u64da\u9700\u6c42\u9078\u64c7\u5408\u9069\u7684\u6642\u9593\u985e\u578b\u3002<\/p>\n<p>\u5982\u679c\u60a8\u5c0d\u65bc <a href=\"https:\/\/server.hk\">\u9999\u6e2f VPS<\/a> \u670d\u52d9\u6216\u5176\u4ed6\u76f8\u95dc\u6280\u8853\u6709\u8208\u8da3\uff0c\u6b61\u8fce\u8a2a\u554f\u6211\u5011\u7684\u7db2\u7ad9\u4ee5\u7372\u53d6\u66f4\u591a\u8cc7\u8a0a\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u4e86\u89e3\u5982\u4f55\u5728 Oracle \u8868\u4e2d\u63d2\u5165\u7cfb\u7d71\u6642\u9593\uff0c\u4f7f\u7528 SYSDATE \u51fd\u6578\u8f15\u9b06\u7372\u53d6\u7576\u524d\u65e5\u671f\u548c\u6642\u9593\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-179652","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/179652","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=179652"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/179652\/revisions"}],"predecessor-version":[{"id":179653,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/179652\/revisions\/179653"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=179652"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=179652"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=179652"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}