{"id":5025,"date":"2024-11-14T10:54:20","date_gmt":"2024-11-14T02:54:20","guid":{"rendered":"https:\/\/fwq.ai\/blog\/5025\/"},"modified":"2024-11-14T10:54:20","modified_gmt":"2024-11-14T02:54:20","slug":"oracle%e8%a7%a6%e5%8f%91%e5%99%a8%e6%80%8e%e4%b9%88%e8%b0%83%e7%94%a8","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/5025\/","title":{"rendered":"oracle\u89e6\u53d1\u5668\u600e\u4e48\u8c03\u7528"},"content":{"rendered":"<blockquote><p>\n  \u5728 oracle \u4e2d\u8c03\u7528\u89e6\u53d1\u5668\u7684\u65b9\u6cd5\u6709\uff1a\u901a\u8fc7 insert\u3001update \u6216 delete \u8bed\u53e5\u76f4\u63a5\u89e6\u53d1\u5728\u521b\u5efa\u89e6\u53d1\u5668\u65f6\u4f7f\u7528 create trigger \u8bed\u53e5\u6307\u5b9a\u8c03\u7528\u65b9\u5f0f\u5728 pl\/sql \u4ee3\u7801\u4e2d\u4f7f\u7528 execute immediate \u8bed\u53e5\u8c03\u7528\n<\/p><\/blockquote>\n<p><img decoding=\"async\" src=\"https:\/\/img.php.cn\/upload\/article\/202405\/21\/2024052111211836824.jpg\" class=\"aligncenter\" title=\"oracle\u89e6\u53d1\u5668\u600e\u4e48\u8c03\u7528\u63d2\u56fe\" alt=\"oracle\u89e6\u53d1\u5668\u600e\u4e48\u8c03\u7528\u63d2\u56fe\" \/><\/p>\n<p><strong>\u5982\u4f55\u5728 Oracle \u4e2d\u8c03\u7528\u89e6\u53d1\u5668<\/strong><\/p>\n<p>\u5728 Oracle \u6570\u636e\u5e93\u4e2d\uff0c\u89e6\u53d1\u5668\u662f\u4e00\u79cd\u7528\u4e8e\u5728\u7279\u5b9a\u4e8b\u4ef6\uff08\u5982\u6570\u636e\u63d2\u5165\u3001\u66f4\u65b0\u6216\u5220\u9664\uff09\u53d1\u751f\u65f6\u81ea\u52a8\u6267\u884c\u64cd\u4f5c\u7684\u6570\u636e\u5e93\u5bf9\u8c61\u3002\u8981\u8c03\u7528\u89e6\u53d1\u5668\uff0c\u6709\u4ee5\u4e0b\u51e0\u79cd\u65b9\u6cd5\uff1a<\/p>\n<p><strong>1. INSERT\u3001UPDATE \u6216 DELETE \u8bed\u53e5<\/strong><\/p>\n<p>\u6700\u76f4\u63a5\u7684\u65b9\u6cd5\u662f\u4f7f\u7528 INSERT\u3001UPDATE \u6216 DELETE \u8bed\u53e5\u6765\u89e6\u53d1\u76f8\u5e94\u7684\u89e6\u53d1\u5668\u3002\u4f8b\u5982\uff1a<\/p>\n<pre>-- \u63d2\u5165\u8bb0\u5f55\u5e76\u89e6\u53d1 BEFORE INSERT \u89e6\u53d1\u5668\nINSERT INTO employees (employee_id, first_name, last_name)\nVALUES (100, 'John', 'Doe');\n\n-- \u66f4\u65b0\u8bb0\u5f55\u5e76\u89e6\u53d1 BEFORE UPDATE \u89e6\u53d1\u5668\nUPDATE employees\nSET first_name = 'Jane'\nWHERE employee_id = 100;\n\n-- \u5220\u9664\u8bb0\u5f55\u5e76\u89e6\u53d1 BEFORE DELETE \u89e6\u53d1\u5668\nDELETE FROM employees\nWHERE employee_id = 100;<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p><strong>2. CREATE TRIGGER \u8bed\u53e5<\/strong><\/p>\n<p>CREATE TRIGGER \u8bed\u53e5\u8fd8\u53ef\u4ee5\u5728\u521b\u5efa\u89e6\u53d1\u5668\u65f6\u6307\u5b9a\u5176\u8c03\u7528\u65b9\u5f0f\u3002\u4f8b\u5982\uff1a<\/p>\n<pre>-- \u521b\u5efa\u4e00\u4e2a\u5728 INSERT \u64cd\u4f5c\u65f6\u8c03\u7528\u7684\u89e6\u53d1\u5668\nCREATE TRIGGER insert_audit_trigger\nAFTER INSERT ON employees\nFOR EACH ROW\nAS\nBEGIN\n  -- \u5728\u8fd9\u91cc\u63d2\u5165\u89e6\u53d1\u5668\u903b\u8f91\nEND;<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p><strong>3. PL\/SQL \u4ee3\u7801<\/strong><\/p>\n<p>\u53ef\u4ee5\u5728 PL\/SQL \u4ee3\u7801\u4e2d\u4f7f\u7528 EXECUTE IMMEDIATE \u8bed\u53e5\u8c03\u7528\u89e6\u53d1\u5668\u3002\u4f8b\u5982\uff1a<\/p>\n<pre>DECLARE\n  trigger_name VARCHAR2(30) := 'insert_audit_trigger';\nBEGIN\n  -- \u8c03\u7528\u89e6\u53d1\u5668\n  EXECUTE IMMEDIATE 'EXECUTE ' || trigger_name;\nEND;<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p><strong>\u89e6\u53d1\u5668\u8c03\u7528\u6ce8\u610f\u4e8b\u9879<\/strong><\/p>\n<ul>\n<li>\u89e6\u53d1\u5668\u53ea\u80fd\u5728\u4e0e\u89e6\u53d1\u5668\u8868\u76f8\u540c\u7684\u6570\u636e\u5e93\u4e2d\u8c03\u7528\u3002<\/li>\n<li>\u89e6\u53d1\u5668\u8c03\u7528\u53ef\u4ee5\u88ab\u5d4c\u5957\uff0c\u4f46\u8fd9\u53ef\u80fd\u4f1a\u5f71\u54cd\u6027\u80fd\u3002<\/li>\n<li>\u5728\u89e6\u53d1\u5668\u4e2d\u4fee\u6539\u89e6\u53d1\u5668\u8868\u7684\u6570\u636e\u65f6\u5e94\u8c28\u614e\uff0c\u56e0\u4e3a\u5b83\u53ef\u80fd\u4f1a\u5bfc\u81f4\u65e0\u9650\u5faa\u73af\u3002<\/li>\n<li>\u89e6\u53d1\u5668\u53ef\u4ee5\u4f7f\u7528 AUTONOMOUS_TRANSACTION pragma \u6765\u8fd0\u884c\u5728\u72ec\u7acb\u4e8b\u52a1\u4e2d\uff0c\u4f46\u8fd9\u6837\u505a\u4f1a\u589e\u52a0\u7cfb\u7edf\u5f00\u9500\u3002<\/li>\n<\/ul>\n<p>\u4ee5\u4e0a\u5c31\u662f\u89e6\u53d1\u5668\u600e\u4e48\u8c03\u7528\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>\u5728 oracle \u4e2d\u8c03\u7528\u89e6\u53d1\u5668\u7684\u65b9\u6cd5\u6709\uff1a\u901a\u8fc7 insert\u3001update \u6216 delete \u8bed\u53e5\u76f4\u63a5\u89e6\u53d1\u5728\u521b\u5efa\u89e6\u53d1\u5668\u65f6\u4f7f\u7528 create trigger \u8bed\u53e5\u6307\u5b9a\u8c03\u7528\u65b9\u5f0f\u5728 pl\/sql \u4ee3\u7801\u4e2d\u4f7f\u7528 execute immediate \u8bed\u53e5\u8c03\u7528 \u5982\u4f55\u5728 Oracle \u4e2d\u8c03\u7528\u89e6\u53d1\u5668 \u5728 Oracle \u6570\u636e\u5e93\u4e2d\uff0c\u89e6\u53d1\u5668\u662f\u4e00\u79cd\u7528\u4e8e\u5728\u7279\u5b9a\u4e8b\u4ef6\uff08\u5982\u6570\u636e\u63d2\u5165\u3001\u66f4\u65b0\u6216\u5220\u9664\uff09\u53d1\u751f\u65f6\u81ea\u52a8\u6267\u884c\u64cd\u4f5c\u7684\u6570\u636e\u5e93\u5bf9\u8c61\u3002\u8981\u8c03\u7528\u89e6\u53d1\u5668\uff0c\u6709\u4ee5\u4e0b\u51e0\u79cd\u65b9\u6cd5\uff1a 1. INSERT\u3001UPDATE \u6216 DELETE \u8bed\u53e5 \u6700\u76f4\u63a5\u7684\u65b9\u6cd5\u662f\u4f7f\u7528 INSERT\u3001UPDATE \u6216 DELETE \u8bed\u53e5\u6765\u89e6\u53d1\u76f8\u5e94\u7684\u89e6\u53d1\u5668\u3002\u4f8b\u5982\uff1a &#8212; \u63d2\u5165\u8bb0\u5f55\u5e76\u89e6\u53d1 BEFORE INSERT \u89e6\u53d1\u5668 INSERT INTO employees (employee_id, first_name, last_name) VALUES (100, &#8216;John&#8217;, &#8216;Doe&#8217;); &#8212; \u66f4\u65b0\u8bb0\u5f55\u5e76\u89e6\u53d1 BEFORE UPDATE \u89e6\u53d1\u5668 UPDATE employees SET first_name [&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-5025","post","type-post","status-publish","format-standard","hentry","category-16"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/5025","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=5025"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/5025\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=5025"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=5025"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=5025"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}