{"id":91150,"date":"2024-10-18T18:47:16","date_gmt":"2024-10-18T10:47:16","guid":{"rendered":"https:\/\/server.hk\/cnblog\/91150\/"},"modified":"2024-10-18T18:47:17","modified_gmt":"2024-10-18T10:47:17","slug":"ora-29853-%e5%89%b5%e5%bb%ba%e5%9f%9f%e7%b4%a2%e5%bc%95%e6%99%82%e7%84%a1%e6%b3%95%e4%bd%bf%e7%94%a8%e9%97%9c%e9%8d%b5%e5%ad%97-unique-oracle-%e5%a0%b1%e9%8c%af-%e6%95%85%e9%9a%9c%e4%bf%ae%e5%be%a9","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/91150\/","title":{"rendered":"ORA-29853: \u5275\u5efa\u57df\u7d22\u5f15\u6642\u7121\u6cd5\u4f7f\u7528\u95dc\u9375\u5b57 UNIQUE ORACLE \u5831\u932f \u6545\u969c\u4fee\u5fa9 \u9060\u7a0b\u8655\u7406"},"content":{"rendered":"<h1 id=\"ora-29853-%e5%89%b5%e5%bb%ba%e5%9f%9f%e7%b4%a2%e5%bc%95%e6%99%82%e7%84%a1%e6%b3%95%e4%bd%bf%e7%94%a8%e9%97%9c%e9%8d%b5%e5%ad%97-unique-oracle-%e5%a0%b1%e9%8c%af-%e6%95%85%e9%9a%9c%e4%bf%ae%e5%be%a9-AQsLdGzDeN\">ORA-29853: \u5275\u5efa\u57df\u7d22\u5f15\u6642\u7121\u6cd5\u4f7f\u7528\u95dc\u9375\u5b57 UNIQUE ORACLE \u5831\u932f \u6545\u969c\u4fee\u5fa9 \u9060\u7a0b\u8655\u7406<\/h1>\n<p>\u5728\u4f7f\u7528Oracle\u6578\u64da\u5eab\u6642\uff0c\u958b\u767c\u8005\u548c\u6578\u64da\u5eab\u7ba1\u7406\u54e1\u53ef\u80fd\u6703\u9047\u5230\u5404\u7a2e\u932f\u8aa4\u4ee3\u78bc\uff0c\u5176\u4e2d\u4e4b\u4e00\u4fbf\u662fORA-29853\u3002\u9019\u500b\u932f\u8aa4\u901a\u5e38\u51fa\u73fe\u5728\u5275\u5efa\u57df\u7d22\u5f15\u6642\uff0c\u4e26\u4e14\u8207UNIQUE\u7d04\u675f\u6709\u95dc\u3002\u672c\u6587\u5c07\u6df1\u5165\u63a2\u8a0eORA-29853\u7684\u539f\u56e0\u3001\u5f71\u97ff\u4ee5\u53ca\u5982\u4f55\u9032\u884c\u6545\u969c\u4fee\u5fa9\u3002<\/p>\n<h2 id=\"ora-29853%e7%9a%84%e5%8e%9f%e5%9b%a0-AQsLdGzDeN\">ORA-29853\u7684\u539f\u56e0<\/h2>\n<p>ORA-29853\u932f\u8aa4\u7684\u4e3b\u8981\u539f\u56e0\u662f\u7576\u4f60\u5617\u8a66\u5275\u5efa\u4e00\u500b\u57df\u7d22\u5f15\u6642\uff0cOracle\u6578\u64da\u5eab\u7121\u6cd5\u4f7f\u7528UNIQUE\u7d04\u675f\u3002\u9019\u901a\u5e38\u767c\u751f\u5728\u4ee5\u4e0b\u60c5\u6cc1\uff1a<\/p>\n<ul>\n<li>\u7d22\u5f15\u7684\u5217\u5305\u542bNULL\u503c\uff0c\u800cUNIQUE\u7d04\u675f\u4e0d\u5141\u8a31\u9019\u7a2e\u60c5\u6cc1\u3002<\/li>\n<li>\u7d22\u5f15\u7684\u5217\u5728\u6578\u64da\u5eab\u4e2d\u5df2\u7d93\u5b58\u5728\u91cd\u8907\u7684\u503c\u3002<\/li>\n<li>\u7d22\u5f15\u7684\u5b9a\u7fa9\u4e0d\u7b26\u5408UNIQUE\u7d04\u675f\u7684\u8981\u6c42\u3002<\/li>\n<\/ul>\n<p>\u4f8b\u5982\uff0c\u5047\u8a2d\u4f60\u6709\u4e00\u500b\u8868\u683c\uff0c\u4e26\u4e14\u4f60\u60f3\u8981\u5728\u67d0\u4e00\u5217\u4e0a\u5275\u5efa\u4e00\u500bUNIQUE\u7d22\u5f15\uff0c\u4f46\u8a72\u5217\u4e2d\u5df2\u7d93\u5b58\u5728\u91cd\u8907\u7684\u6578\u64da\uff0c\u9019\u6642\u5c31\u6703\u5f15\u767cORA-29853\u932f\u8aa4\u3002<\/p>\n<h2 id=\"%e5%a6%82%e4%bd%95%e6%aa%a2%e6%9f%a5%e5%92%8c%e4%bf%ae%e5%be%a9ora-29853%e9%8c%af%e8%aa%a4-AQsLdGzDeN\">\u5982\u4f55\u6aa2\u67e5\u548c\u4fee\u5fa9ORA-29853\u932f\u8aa4<\/h2>\n<p>\u8981\u4fee\u5fa9ORA-29853\u932f\u8aa4\uff0c\u9996\u5148\u9700\u8981\u78ba\u5b9a\u554f\u984c\u7684\u6839\u6e90\u3002\u4ee5\u4e0b\u662f\u4e00\u4e9b\u6b65\u9a5f\uff0c\u53ef\u4ee5\u5e6b\u52a9\u4f60\u6aa2\u67e5\u548c\u4fee\u5fa9\u9019\u500b\u932f\u8aa4\uff1a<\/p>\n<h3 id=\"1-%e6%aa%a2%e6%9f%a5%e6%95%b8%e6%93%9a-AQsLdGzDeN\">1. \u6aa2\u67e5\u6578\u64da<\/h3>\n<p>\u4f7f\u7528\u4ee5\u4e0bSQL\u67e5\u8a62\u4f86\u6aa2\u67e5\u8868\u683c\u4e2d\u662f\u5426\u5b58\u5728\u91cd\u8907\u7684\u503c\uff1a<\/p>\n<pre><code>SELECT column_name, COUNT(*)\nFROM your_table\nGROUP BY column_name\nHAVING COUNT(*) &gt; 1;<\/code><\/pre>\n<p>\u5982\u679c\u67e5\u8a62\u7d50\u679c\u8fd4\u56de\u4e86\u91cd\u8907\u7684\u503c\uff0c\u5247\u9700\u8981\u6e05\u7406\u9019\u4e9b\u6578\u64da\uff0c\u78ba\u4fdd\u6bcf\u500b\u503c\u90fd\u662f\u552f\u4e00\u7684\u3002<\/p>\n<h3 id=\"2-%e6%aa%a2%e6%9f%a5null%e5%80%bc-AQsLdGzDeN\">2. \u6aa2\u67e5NULL\u503c<\/h3>\n<p>UNIQUE\u7d04\u675f\u4e0d\u5141\u8a31\u5217\u4e2d\u5b58\u5728NULL\u503c\u3002\u4f7f\u7528\u4ee5\u4e0b\u67e5\u8a62\u4f86\u6aa2\u67e5NULL\u503c\uff1a<\/p>\n<pre><code>SELECT COUNT(*)\nFROM your_table\nWHERE column_name IS NULL;<\/code><\/pre>\n<p>\u5982\u679c\u8fd4\u56de\u7684\u8a08\u6578\u5927\u65bc0\uff0c\u5247\u9700\u8981\u8003\u616e\u5982\u4f55\u8655\u7406\u9019\u4e9bNULL\u503c\uff0c\u4f8b\u5982\u5c07\u5176\u66ff\u63db\u70ba\u6709\u6548\u7684\u6578\u64da\u3002<\/p>\n<h3 id=\"3-%e9%87%8d%e6%96%b0%e5%89%b5%e5%bb%ba%e7%b4%a2%e5%bc%95-AQsLdGzDeN\">3. \u91cd\u65b0\u5275\u5efa\u7d22\u5f15<\/h3>\n<p>\u5728\u78ba\u4fdd\u6578\u64da\u7b26\u5408UNIQUE\u7d04\u675f\u7684\u8981\u6c42\u5f8c\uff0c\u53ef\u4ee5\u91cd\u65b0\u5275\u5efa\u7d22\u5f15\u3002\u4f7f\u7528\u4ee5\u4e0bSQL\u8a9e\u53e5\u4f86\u5275\u5efa\u7d22\u5f15\uff1a<\/p>\n<pre><code>CREATE UNIQUE INDEX your_index_name\nON your_table(column_name);<\/code><\/pre>\n<p>\u9019\u6a23\u53ef\u4ee5\u78ba\u4fdd\u7d22\u5f15\u7684\u5275\u5efa\u4e0d\u6703\u518d\u5f15\u767cORA-29853\u932f\u8aa4\u3002<\/p>\n<h2 id=\"%e9%81%a0%e7%a8%8b%e8%99%95%e7%90%86ora-29853%e9%8c%af%e8%aa%a4-AQsLdGzDeN\">\u9060\u7a0b\u8655\u7406ORA-29853\u932f\u8aa4<\/h2>\n<p>\u5728\u67d0\u4e9b\u60c5\u6cc1\u4e0b\uff0c\u6578\u64da\u5eab\u7ba1\u7406\u54e1\u53ef\u80fd\u7121\u6cd5\u76f4\u63a5\u8a2a\u554f\u6578\u64da\u5eab\u9032\u884c\u6545\u969c\u6392\u9664\u3002\u9019\u6642\uff0c\u53ef\u4ee5\u8003\u616e\u4f7f\u7528\u9060\u7a0b\u8655\u7406\u5de5\u5177\u4f86\u5354\u52a9\u89e3\u6c7a\u554f\u984c\u3002\u8a31\u591a\u73fe\u4ee3\u7684\u6578\u64da\u5eab\u7ba1\u7406\u5de5\u5177\u90fd\u63d0\u4f9b\u4e86\u9060\u7a0b\u9023\u63a5\u529f\u80fd\uff0c\u5141\u8a31\u7ba1\u7406\u54e1\u5728\u4e0d\u76f4\u63a5\u8a2a\u554f\u4f3a\u670d\u5668\u7684\u60c5\u6cc1\u4e0b\u9032\u884c\u64cd\u4f5c\u3002<\/p>\n<p>\u5728\u4f7f\u7528\u9060\u7a0b\u5de5\u5177\u6642\uff0c\u78ba\u4fdd\u9075\u5faa\u5b89\u5168\u6700\u4f73\u5be6\u8e10\uff0c\u4e26\u5b9a\u671f\u5099\u4efd\u6578\u64da\uff0c\u4ee5\u9632\u6b62\u6578\u64da\u4e1f\u5931\u6216\u640d\u58de\u3002<\/p>\n<h2 id=\"%e7%b8%bd%e7%b5%90-AQsLdGzDeN\">\u7e3d\u7d50<\/h2>\n<p>ORA-29853\u932f\u8aa4\u901a\u5e38\u8207UNIQUE\u7d04\u675f\u6709\u95dc\uff0c\u4e26\u4e14\u53ef\u4ee5\u901a\u904e\u6aa2\u67e5\u6578\u64da\u3001\u6e05\u7406\u91cd\u8907\u503c\u548cNULL\u503c\u4f86\u4fee\u5fa9\u3002\u5c0d\u65bc\u7121\u6cd5\u76f4\u63a5\u8a2a\u554f\u6578\u64da\u5eab\u7684\u60c5\u6cc1\uff0c\u9060\u7a0b\u8655\u7406\u5de5\u5177\u63d0\u4f9b\u4e86\u4e00\u7a2e\u6709\u6548\u7684\u89e3\u6c7a\u65b9\u6848\u3002\u4e86\u89e3\u9019\u4e9b\u6545\u969c\u6392\u9664\u6b65\u9a5f\u5c07\u6709\u52a9\u65bc\u63d0\u9ad8\u6578\u64da\u5eab\u7684\u7a69\u5b9a\u6027\u548c\u6027\u80fd\u3002<\/p>\n<p>\u5982\u679c\u60a8\u9700\u8981\u66f4\u591a\u6709\u95dc<em><a href=\"https:\/\/server.hk\">\u9999\u6e2fVPS<\/a><\/em>\u548c<em><a href=\"https:\/\/server.hk\">\u4e91\u670d\u52a1\u5668<\/a><\/em>\u7684\u8cc7\u8a0a\uff0c\u8acb\u8a2a\u554f\u6211\u5011\u7684\u7db2\u7ad9\u4ee5\u7372\u53d6\u66f4\u591a\u8a73\u7d30\u8cc7\u6599\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u89e3\u6c7aORA-29853\u932f\u8aa4\uff0c\u4e86\u89e3\u5275\u5efa\u57df\u7d22\u5f15\u6642\u7121\u6cd5\u4f7f\u7528UNIQUE\u95dc\u9375\u5b57\u7684\u539f\u56e0\u53ca\u9060\u7a0b\u8655\u7406\u6545\u969c\u4fee\u5fa9\u65b9\u6cd5\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-91150","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/91150","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=91150"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/91150\/revisions"}],"predecessor-version":[{"id":91151,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/91150\/revisions\/91151"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=91150"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=91150"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=91150"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}