{"id":162717,"date":"2024-11-04T17:25:26","date_gmt":"2024-11-04T09:25:26","guid":{"rendered":"https:\/\/server.hk\/cnblog\/162717\/"},"modified":"2024-11-04T17:25:27","modified_gmt":"2024-11-04T09:25:27","slug":"%e5%b0%87oracle%e4%b8%ad%e7%9a%84%e6%95%b8%e6%93%9a%e6%9b%b4%e6%94%b9%e5%be%8c%e5%87%ba%e9%8c%af%e7%9a%84%e8%a7%a3%e6%b1%ba%e6%96%b9%e6%b3%95","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/162717\/","title":{"rendered":"\u5c07Oracle\u4e2d\u7684\u6578\u64da\u66f4\u6539\u5f8c\u51fa\u932f\u7684\u89e3\u6c7a\u65b9\u6cd5"},"content":{"rendered":"<h1 id=\"%e5%b0%87oracle%e4%b8%ad%e7%9a%84%e6%95%b8%e6%93%9a%e6%9b%b4%e6%94%b9%e5%be%8c%e5%87%ba%e9%8c%af%e7%9a%84%e8%a7%a3%e6%b1%ba%e6%96%b9%e6%b3%95-pEUaMjYoNC\">\u5c07Oracle\u4e2d\u7684\u6578\u64da\u66f4\u6539\u5f8c\u51fa\u932f\u7684\u89e3\u6c7a\u65b9\u6cd5<\/h1>\n<p>\u5728\u4f7f\u7528Oracle\u6578\u64da\u5eab\u7684\u904e\u7a0b\u4e2d\uff0c\u6578\u64da\u7684\u66f4\u6539\u662f\u5e38\u898b\u7684\u64cd\u4f5c\u3002\u7136\u800c\uff0c\u9019\u4e9b\u66f4\u6539\u6709\u6642\u6703\u5c0e\u81f4\u932f\u8aa4\uff0c\u5f71\u97ff\u7cfb\u7d71\u7684\u6b63\u5e38\u904b\u884c\u3002\u672c\u6587\u5c07\u63a2\u8a0e\u5728Oracle\u4e2d\u9032\u884c\u6578\u64da\u66f4\u6539\u5f8c\u53ef\u80fd\u51fa\u73fe\u7684\u932f\u8aa4\u53ca\u5176\u89e3\u6c7a\u65b9\u6cd5\uff0c\u5e6b\u52a9\u7528\u6236\u66f4\u6709\u6548\u5730\u7ba1\u7406\u6578\u64da\u5eab\u3002<\/p>\n<h2 id=\"%e5%b8%b8%e8%a6%8b%e7%9a%84%e6%95%b8%e6%93%9a%e6%9b%b4%e6%94%b9%e9%8c%af%e8%aa%a4-pEUaMjYoNC\">\u5e38\u898b\u7684\u6578\u64da\u66f4\u6539\u932f\u8aa4<\/h2>\n<p>\u5728Oracle\u6578\u64da\u5eab\u4e2d\uff0c\u6578\u64da\u66f4\u6539\u5f8c\u53ef\u80fd\u51fa\u73fe\u7684\u932f\u8aa4\u4e3b\u8981\u5305\u62ec\uff1a<\/p>\n<ul>\n<li><strong>\u6578\u64da\u985e\u578b\u4e0d\u5339\u914d\uff1a<\/strong>\u7576\u5617\u8a66\u5c07\u4e00\u500b\u4e0d\u7b26\u5408\u6578\u64da\u985e\u578b\u7684\u503c\u63d2\u5165\u6216\u66f4\u65b0\u5230\u6578\u64da\u5eab\u4e2d\u6642\uff0c\u6703\u5f15\u767c\u932f\u8aa4\u3002\u4f8b\u5982\uff0c\u5c07\u5b57\u4e32\u63d2\u5165\u5230\u6574\u6578\u985e\u578b\u7684\u6b04\u4f4d\u4e2d\u3002<\/li>\n<li><strong>\u7d04\u675f\u9055\u53cd\uff1a<\/strong>\u5982\u679c\u6578\u64da\u66f4\u6539\u9055\u53cd\u4e86\u8868\u7684\u7d04\u675f\u689d\u4ef6\uff08\u5982\u4e3b\u9375\u3001\u5916\u9375\u3001\u552f\u4e00\u6027\u7d04\u675f\u7b49\uff09\uff0c\u5247\u6703\u5c0e\u81f4\u932f\u8aa4\u3002<\/li>\n<li><strong>\u89f8\u767c\u5668\u932f\u8aa4\uff1a<\/strong>\u5728\u6578\u64da\u66f4\u6539\u6642\uff0c\u5982\u679c\u89f8\u767c\u5668\u4e2d\u5b58\u5728\u932f\u8aa4\uff0c\u5247\u6703\u5c0e\u81f4\u6574\u500b\u64cd\u4f5c\u5931\u6557\u3002<\/li>\n<li><strong>\u4e8b\u52d9\u7ba1\u7406\u554f\u984c\uff1a<\/strong>\u5728\u4e8b\u52d9\u672a\u6b63\u78ba\u63d0\u4ea4\u6216\u56de\u6efe\u7684\u60c5\u6cc1\u4e0b\uff0c\u53ef\u80fd\u6703\u5c0e\u81f4\u6578\u64da\u4e0d\u4e00\u81f4\u3002<\/li>\n<\/ul>\n<h2 id=\"%e8%a7%a3%e6%b1%ba%e6%96%b9%e6%b3%95-pEUaMjYoNC\">\u89e3\u6c7a\u65b9\u6cd5<\/h2>\n<h3 id=\"1-%e6%95%b8%e6%93%9a%e9%a1%9e%e5%9e%8b%e4%b8%8d%e5%8c%b9%e9%85%8d-pEUaMjYoNC\">1. \u6578\u64da\u985e\u578b\u4e0d\u5339\u914d<\/h3>\n<p>\u70ba\u4e86\u89e3\u6c7a\u6578\u64da\u985e\u578b\u4e0d\u5339\u914d\u7684\u554f\u984c\uff0c\u9996\u5148\u9700\u8981\u6aa2\u67e5\u8981\u63d2\u5165\u6216\u66f4\u65b0\u7684\u6578\u64da\u985e\u578b\u3002\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0bSQL\u8a9e\u53e5\u4f86\u6aa2\u67e5\u8868\u7684\u7d50\u69cb\uff1a<\/p>\n<pre><code>DESCRIBE table_name;<\/code><\/pre>\n<p>\u78ba\u4fdd\u63d2\u5165\u7684\u6578\u64da\u8207\u8868\u4e2d\u5b9a\u7fa9\u7684\u6578\u64da\u985e\u578b\u76f8\u7b26\u3002\u5982\u679c\u9700\u8981\uff0c\u53ef\u4ee5\u4f7f\u7528CAST\u51fd\u6578\u4f86\u8f49\u63db\u6578\u64da\u985e\u578b\uff1a<\/p>\n<pre><code>UPDATE table_name SET column_name = CAST('value' AS data_type) WHERE condition;<\/code><\/pre>\n<h3 id=\"2-%e7%b4%84%e6%9d%9f%e9%81%95%e5%8f%8d-pEUaMjYoNC\">2. \u7d04\u675f\u9055\u53cd<\/h3>\n<p>\u7576\u9047\u5230\u7d04\u675f\u9055\u53cd\u7684\u932f\u8aa4\u6642\uff0c\u61c9\u6aa2\u67e5\u76f8\u95dc\u7684\u7d04\u675f\u689d\u4ef6\u3002\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0bSQL\u8a9e\u53e5\u67e5\u8a62\u8868\u7684\u7d04\u675f\uff1a<\/p>\n<pre><code>SELECT * FROM user_constraints WHERE table_name = 'TABLE_NAME';<\/code><\/pre>\n<p>\u6839\u64da\u67e5\u8a62\u7d50\u679c\uff0c\u78ba\u4fdd\u6578\u64da\u66f4\u6539\u4e0d\u6703\u9055\u53cd\u4efb\u4f55\u7d04\u675f\u3002\u5982\u679c\u9700\u8981\uff0c\u53ef\u4ee5\u8003\u616e\u66ab\u6642\u7981\u7528\u7d04\u675f\uff0c\u9032\u884c\u6578\u64da\u66f4\u6539\u5f8c\u518d\u555f\u7528\uff1a<\/p>\n<pre><code>ALTER TABLE table_name DISABLE CONSTRAINT constraint_name;<\/code><\/pre>\n<pre><code>ALTER TABLE table_name ENABLE CONSTRAINT constraint_name;<\/code><\/pre>\n<h3 id=\"3-%e8%a7%b8%e7%99%bc%e5%99%a8%e9%8c%af%e8%aa%a4-pEUaMjYoNC\">3. \u89f8\u767c\u5668\u932f\u8aa4<\/h3>\n<p>\u5982\u679c\u932f\u8aa4\u662f\u7531\u89f8\u767c\u5668\u5f15\u8d77\u7684\uff0c\u5247\u9700\u8981\u6aa2\u67e5\u89f8\u767c\u5668\u7684\u908f\u8f2f\u3002\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0bSQL\u8a9e\u53e5\u67e5\u770b\u89f8\u767c\u5668\u7684\u5b9a\u7fa9\uff1a<\/p>\n<pre><code>SELECT trigger_name, trigger_type, trigger_body FROM user_triggers WHERE table_name = 'TABLE_NAME';<\/code><\/pre>\n<p>\u78ba\u4fdd\u89f8\u767c\u5668\u7684\u908f\u8f2f\u6b63\u78ba\uff0c\u4e26\u4e14\u4e0d\u6703\u5c0e\u81f4\u932f\u8aa4\u3002\u5982\u679c\u9700\u8981\uff0c\u53ef\u4ee5\u66ab\u6642\u7981\u7528\u89f8\u767c\u5668\u9032\u884c\u6e2c\u8a66\uff1a<\/p>\n<pre><code>ALTER TRIGGER trigger_name DISABLE;<\/code><\/pre>\n<pre><code>ALTER TRIGGER trigger_name ENABLE;<\/code><\/pre>\n<h3 id=\"4-%e4%ba%8b%e5%8b%99%e7%ae%a1%e7%90%86%e5%95%8f%e9%a1%8c-pEUaMjYoNC\">4. \u4e8b\u52d9\u7ba1\u7406\u554f\u984c<\/h3>\n<p>\u5728\u9032\u884c\u6578\u64da\u66f4\u6539\u6642\uff0c\u78ba\u4fdd\u6b63\u78ba\u4f7f\u7528\u4e8b\u52d9\u7ba1\u7406\u3002\u4f7f\u7528COMMIT\u548cROLLBACK\u4f86\u63a7\u5236\u4e8b\u52d9\u7684\u63d0\u4ea4\u548c\u56de\u6efe\uff1a<\/p>\n<pre><code>BEGIN;<\/code><\/pre>\n<pre><code>UPDATE table_name SET column_name = 'value' WHERE condition;<\/code><\/pre>\n<pre><code>COMMIT;<\/code><\/pre>\n<p>\u5982\u679c\u51fa\u73fe\u932f\u8aa4\uff0c\u5247\u53ef\u4ee5\u4f7f\u7528ROLLBACK\u4f86\u64a4\u92b7\u66f4\u6539\uff1a<\/p>\n<pre><code>ROLLBACK;<\/code><\/pre>\n<h2 id=\"%e7%b8%bd%e7%b5%90-pEUaMjYoNC\">\u7e3d\u7d50<\/h2>\n<p>\u5728Oracle\u6578\u64da\u5eab\u4e2d\uff0c\u6578\u64da\u66f4\u6539\u5f8c\u51fa\u73fe\u932f\u8aa4\u662f\u5e38\u898b\u7684\u554f\u984c\uff0c\u4f46\u901a\u904e\u6aa2\u67e5\u6578\u64da\u985e\u578b\u3001\u7d04\u675f\u3001\u89f8\u767c\u5668\u548c\u4e8b\u52d9\u7ba1\u7406\uff0c\u53ef\u4ee5\u6709\u6548\u5730\u89e3\u6c7a\u9019\u4e9b\u554f\u984c\u3002\u4e86\u89e3\u9019\u4e9b\u89e3\u6c7a\u65b9\u6cd5\u5c07\u6709\u52a9\u65bc\u63d0\u9ad8\u6578\u64da\u5eab\u7684\u7a69\u5b9a\u6027\u548c\u53ef\u9760\u6027\u3002\u5982\u679c\u60a8\u9700\u8981\u9032\u4e00\u6b65\u7684\u652f\u6301\u6216\u5c0b\u627e\u9ad8\u6548\u7684\u89e3\u6c7a\u65b9\u6848\uff0c\u8003\u616e\u4f7f\u7528<a href=\"https:\/\/server.hk\">\u9999\u6e2fVPS<\/a>\u6216<a href=\"https:\/\/server.hk\">\u9999\u6e2f\u4f3a\u670d\u5668<\/a>\u4f86\u63d0\u5347\u60a8\u7684\u6578\u64da\u5eab\u6027\u80fd\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u4e86\u89e3\u5728Oracle\u4e2d\u6578\u64da\u66f4\u6539\u5f8c\u51fa\u932f\u7684\u89e3\u6c7a\u65b9\u6cd5\uff0c\u5e6b\u52a9\u60a8\u5feb\u901f\u6392\u9664\u6545\u969c\u4e26\u6062\u5fa9\u6578\u64da\u5b8c\u6574\u6027\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-162717","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/162717","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=162717"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/162717\/revisions"}],"predecessor-version":[{"id":162718,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/162717\/revisions\/162718"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=162717"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=162717"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=162717"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}