{"id":88152,"date":"2024-10-18T07:01:17","date_gmt":"2024-10-17T23:01:17","guid":{"rendered":"https:\/\/server.hk\/cnblog\/88152\/"},"modified":"2024-10-18T07:01:18","modified_gmt":"2024-10-17T23:01:18","slug":"ora-23489-%e9%87%8d%e8%a4%87%e6%a2%9d%e7%9b%ae-string-oracle-%e5%a0%b1%e9%8c%af-%e6%95%85%e9%9a%9c%e4%bf%ae%e5%be%a9-%e9%81%a0%e7%a8%8b%e8%99%95%e7%90%86","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/88152\/","title":{"rendered":"ORA-23489: \u91cd\u8907\u689d\u76ee \u201cstring\u201d ORACLE \u5831\u932f \u6545\u969c\u4fee\u5fa9 \u9060\u7a0b\u8655\u7406"},"content":{"rendered":"<h1 id=\"ora-23489-%e9%87%8d%e8%a4%87%e6%a2%9d%e7%9b%ae-string-oracle-%e5%a0%b1%e9%8c%af-%e6%95%85%e9%9a%9c%e4%bf%ae%e5%be%a9-%e9%81%a0%e7%a8%8b%e8%99%95%e7%90%86-cAuWGKicUy\">ORA-23489: \u91cd\u8907\u689d\u76ee \u201cstring\u201d ORACLE \u5831\u932f \u6545\u969c\u4fee\u5fa9 \u9060\u7a0b\u8655\u7406<\/h1>\n<p>\u5728\u4f7f\u7528 Oracle \u6578\u64da\u5eab\u7684\u904e\u7a0b\u4e2d\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\u662f <code>ORA-23489<\/code>\u3002\u9019\u500b\u932f\u8aa4\u901a\u5e38\u8868\u793a\u5728\u5617\u8a66\u63d2\u5165\u6216\u66f4\u65b0\u6578\u64da\u6642\uff0c\u51fa\u73fe\u4e86\u91cd\u8907\u7684\u689d\u76ee\u3002\u672c\u6587\u5c07\u6df1\u5165\u63a2\u8a0e <code>ORA-23489<\/code> \u7684\u6210\u56e0\u3001\u5f71\u97ff\u53ca\u5176\u89e3\u6c7a\u65b9\u6848\u3002<\/p>\n<h2 id=\"ora-23489-%e9%8c%af%e8%aa%a4%e7%9a%84%e6%88%90%e5%9b%a0-cAuWGKicUy\">ORA-23489 \u932f\u8aa4\u7684\u6210\u56e0<\/h2>\n<p><code>ORA-23489<\/code> \u932f\u8aa4\u901a\u5e38\u767c\u751f\u5728\u4ee5\u4e0b\u60c5\u6cc1\uff1a<\/p>\n<ul>\n<li>\u5728\u4e00\u500b\u552f\u4e00\u7d04\u675f\u7684\u5217\u4e2d\u63d2\u5165\u4e86\u91cd\u8907\u7684\u503c\u3002<\/li>\n<li>\u5728\u4f7f\u7528\u7269\u5316\u8996\u5716\u6642\uff0c\u7576\u6578\u64da\u6e90\u4e2d\u7684\u6578\u64da\u8207\u7269\u5316\u8996\u5716\u7684\u552f\u4e00\u7d04\u675f\u4e0d\u4e00\u81f4\u6642\u3002<\/li>\n<li>\u5728\u57f7\u884c\u67d0\u4e9b DML \u64cd\u4f5c\uff08\u5982 INSERT \u6216 UPDATE\uff09\u6642\uff0c\u9055\u53cd\u4e86\u6578\u64da\u5eab\u7684\u5b8c\u6574\u6027\u7d04\u675f\u3002<\/li>\n<\/ul>\n<p>\u4f8b\u5982\uff0c\u5047\u8a2d\u6709\u4e00\u500b\u540d\u70ba <code>employees<\/code> \u7684\u8868\uff0c\u4e26\u4e14\u8a72\u8868\u7684 <code>employee_id<\/code> \u5217\u8a2d\u7f6e\u70ba\u552f\u4e00\u7d04\u675f\u3002\u5982\u679c\u60a8\u5617\u8a66\u63d2\u5165\u4e00\u500b\u5df2\u5b58\u5728\u7684 <code>employee_id<\/code>\uff0c\u5247\u6703\u89f8\u767c <code>ORA-23489<\/code> \u932f\u8aa4\u3002<\/p>\n<h2 id=\"%e5%a6%82%e4%bd%95%e8%ad%98%e5%88%a5%e5%92%8c%e4%bf%ae%e5%be%a9-ora-23489-%e9%8c%af%e8%aa%a4-cAuWGKicUy\">\u5982\u4f55\u8b58\u5225\u548c\u4fee\u5fa9 ORA-23489 \u932f\u8aa4<\/h2>\n<p>\u8981\u4fee\u5fa9 <code>ORA-23489<\/code> \u932f\u8aa4\uff0c\u9996\u5148\u9700\u8981\u78ba\u5b9a\u5c0e\u81f4\u932f\u8aa4\u7684\u5177\u9ad4\u539f\u56e0\u3002\u4ee5\u4e0b\u662f\u4e00\u4e9b\u6b65\u9a5f\uff0c\u53ef\u4ee5\u5e6b\u52a9\u60a8\u8b58\u5225\u548c\u89e3\u6c7a\u554f\u984c\uff1a<\/p>\n<h3 id=\"1-%e6%aa%a2%e6%9f%a5%e5%94%af%e4%b8%80%e7%b4%84%e6%9d%9f-cAuWGKicUy\">1. \u6aa2\u67e5\u552f\u4e00\u7d04\u675f<\/h3>\n<p>\u4f7f\u7528\u4ee5\u4e0b SQL \u67e5\u8a62\u4f86\u6aa2\u67e5\u8868\u4e2d\u7684\u552f\u4e00\u7d04\u675f\uff1a<\/p>\n<pre><code>SELECT constraint_name, constraint_type \nFROM user_constraints \nWHERE table_name = 'EMPLOYEES';<\/code><\/pre>\n<h3 id=\"2-%e6%9f%a5%e6%89%be%e9%87%8d%e8%a4%87%e6%95%b8%e6%93%9a-cAuWGKicUy\">2. \u67e5\u627e\u91cd\u8907\u6578\u64da<\/h3>\n<p>\u5982\u679c\u78ba\u5b9a\u5b58\u5728\u91cd\u8907\u7684\u6578\u64da\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u67e5\u8a62\u4f86\u67e5\u627e\u91cd\u8907\u7684 <code>employee_id<\/code>\uff1a<\/p>\n<pre><code>SELECT employee_id, COUNT(*) \nFROM employees \nGROUP BY employee_id \nHAVING COUNT(*) &gt; 1;<\/code><\/pre>\n<h3 id=\"3-%e5%88%aa%e9%99%a4%e6%88%96%e6%9b%b4%e6%96%b0%e9%87%8d%e8%a4%87%e6%95%b8%e6%93%9a-cAuWGKicUy\">3. \u522a\u9664\u6216\u66f4\u65b0\u91cd\u8907\u6578\u64da<\/h3>\n<p>\u4e00\u65e6\u627e\u5230\u4e86\u91cd\u8907\u7684\u6578\u64da\uff0c\u60a8\u53ef\u4ee5\u9078\u64c7\u522a\u9664\u6216\u66f4\u65b0\u9019\u4e9b\u689d\u76ee\u3002\u4ee5\u4e0b\u662f\u522a\u9664\u91cd\u8907\u6578\u64da\u7684\u793a\u4f8b\uff1a<\/p>\n<pre><code>DELETE FROM employees \nWHERE employee_id IN (SELECT employee_id \n                      FROM employees \n                      GROUP BY employee_id \n                      HAVING COUNT(*) &gt; 1);<\/code><\/pre>\n<h3 id=\"4-%e7%a2%ba%e4%bf%9d%e6%95%b8%e6%93%9a%e4%b8%80%e8%87%b4%e6%80%a7-cAuWGKicUy\">4. \u78ba\u4fdd\u6578\u64da\u4e00\u81f4\u6027<\/h3>\n<p>\u5728\u9032\u884c DML \u64cd\u4f5c\u4e4b\u524d\uff0c\u78ba\u4fdd\u6578\u64da\u7684\u4e00\u81f4\u6027\uff0c\u907f\u514d\u672a\u4f86\u518d\u6b21\u51fa\u73fe <code>ORA-23489<\/code> \u932f\u8aa4\u3002<\/p>\n<h2 id=\"%e9%81%a0%e7%a8%8b%e8%99%95%e7%90%86-ora-23489-%e9%8c%af%e8%aa%a4-cAuWGKicUy\">\u9060\u7a0b\u8655\u7406 ORA-23489 \u932f\u8aa4<\/h2>\n<p>\u5728\u67d0\u4e9b\u60c5\u6cc1\u4e0b\uff0c\u60a8\u53ef\u80fd\u9700\u8981\u9060\u7a0b\u8655\u7406 <code>ORA-23489<\/code> \u932f\u8aa4\u3002\u9019\u53ef\u4ee5\u901a\u904e\u4ee5\u4e0b\u65b9\u5f0f\u5be6\u73fe\uff1a<\/p>\n<ul>\n<li>\u4f7f\u7528\u9060\u7a0b\u684c\u9762\u5de5\u5177\u9023\u63a5\u5230\u6578\u64da\u5eab\u4f3a\u670d\u5668\uff0c\u4e26\u57f7\u884c\u4e0a\u8ff0\u67e5\u8a62\u548c\u64cd\u4f5c\u3002<\/li>\n<li>\u5229\u7528 Oracle \u63d0\u4f9b\u7684\u9060\u7a0b\u7ba1\u7406\u5de5\u5177\uff0c\u5982 Oracle Enterprise Manager\uff0c\u4f86\u76e3\u63a7\u548c\u7ba1\u7406\u6578\u64da\u5eab\u3002<\/li>\n<li>\u78ba\u4fdd\u60a8\u7684\u6578\u64da\u5eab\u5099\u4efd\u662f\u6700\u65b0\u7684\uff0c\u4ee5\u4fbf\u5728\u51fa\u73fe\u554f\u984c\u6642\u80fd\u5920\u5feb\u901f\u6062\u5fa9\u3002<\/li>\n<\/ul>\n<h2 id=\"%e7%b8%bd%e7%b5%90-cAuWGKicUy\">\u7e3d\u7d50<\/h2>\n<p>\u5728 Oracle \u6578\u64da\u5eab\u4e2d\uff0c<code>ORA-23489<\/code> \u932f\u8aa4\u901a\u5e38\u662f\u7531\u65bc\u91cd\u8907\u7684\u689d\u76ee\u5c0e\u81f4\u7684\u3002\u901a\u904e\u6aa2\u67e5\u552f\u4e00\u7d04\u675f\u3001\u67e5\u627e\u91cd\u8907\u6578\u64da\u4ee5\u53ca\u78ba\u4fdd\u6578\u64da\u7684\u4e00\u81f4\u6027\uff0c\u53ef\u4ee5\u6709\u6548\u5730\u89e3\u6c7a\u6b64\u554f\u984c\u3002\u5c0d\u65bc\u9700\u8981\u9060\u7a0b\u8655\u7406\u7684\u60c5\u6cc1\uff0c\u4f7f\u7528\u5408\u9069\u7684\u5de5\u5177\u548c\u65b9\u6cd5\u5c07\u6709\u52a9\u65bc\u5feb\u901f\u6062\u5fa9\u6578\u64da\u5eab\u7684\u6b63\u5e38\u904b\u884c\u3002<\/p>\n<p>\u5982\u679c\u60a8\u6b63\u5728\u5c0b\u627e\u9ad8\u6548\u7684 <a href=\"https:\/\/server.hk\">\u9999\u6e2fVPS<\/a> \u89e3\u6c7a\u65b9\u6848\uff0cServer.HK \u63d0\u4f9b\u591a\u7a2e\u9078\u64c7\uff0c\u6eff\u8db3\u60a8\u7684\u9700\u6c42\u3002\u7121\u8ad6\u662f\u6578\u64da\u5eab\u7ba1\u7406\u9084\u662f\u61c9\u7528\u90e8\u7f72\uff0c\u6211\u5011\u7684 <a href=\"https:\/\/server.hk\">\u4e91\u4f3a\u670d\u5668<\/a> \u90fd\u80fd\u70ba\u60a8\u63d0\u4f9b\u7a69\u5b9a\u7684\u652f\u6301\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u89e3\u6c7a ORA-23489 \u932f\u8aa4\uff0c\u8655\u7406\u91cd\u8907\u689d\u76ee \u201cstring\u201d\u7684\u6545\u969c\uff0c\u63d0\u4f9b\u6709\u6548\u7684\u9060\u7a0b\u4fee\u5fa9\u65b9\u6848\uff0c\u78ba\u4fdd\u6578\u64da\u5eab\u7a69\u5b9a\u904b\u884c\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-88152","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/88152","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=88152"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/88152\/revisions"}],"predecessor-version":[{"id":88153,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/88152\/revisions\/88153"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=88152"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=88152"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=88152"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}