{"id":93050,"date":"2024-10-19T10:42:16","date_gmt":"2024-10-19T02:42:16","guid":{"rendered":"https:\/\/server.hk\/cnblog\/93050\/"},"modified":"2024-10-19T10:42:16","modified_gmt":"2024-10-19T02:42:16","slug":"ora-48221-%e9%8d%b5%e8%b6%85%e9%81%8e%e5%85%81%e8%a8%b1%e7%9a%84%e6%9c%80%e5%a4%a7%e9%95%b7%e5%ba%a6-string-string-string-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\/93050\/","title":{"rendered":"ORA-48221: \u9375\u8d85\u904e\u5141\u8a31\u7684\u6700\u5927\u9577\u5ea6 [string] [string] [string] ORACLE \u5831\u932f \u6545\u969c\u4fee\u5fa9 \u9060\u7a0b\u8655\u7406"},"content":{"rendered":"<h1 id=\"ora-48221-%e9%8d%b5%e8%b6%85%e9%81%8e%e5%85%81%e8%a8%b1%e7%9a%84%e6%9c%80%e5%a4%a7%e9%95%b7%e5%ba%a6-%e6%95%85%e9%9a%9c%e4%bf%ae%e5%be%a9-%e9%81%a0%e7%a8%8b%e8%99%95%e7%90%86-LUWIWFxAlK\">ORA-48221: \u9375\u8d85\u904e\u5141\u8a31\u7684\u6700\u5927\u9577\u5ea6 \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-48221\u3002\u9019\u500b\u932f\u8aa4\u901a\u5e38\u8868\u793a\u5728\u64cd\u4f5c\u904e\u7a0b\u4e2d\uff0c\u67d0\u500b\u9375\u7684\u9577\u5ea6\u8d85\u904e\u4e86Oracle\u6240\u5141\u8a31\u7684\u6700\u5927\u9577\u5ea6\u3002\u672c\u6587\u5c07\u6df1\u5165\u63a2\u8a0eORA-48221\u7684\u539f\u56e0\u3001\u5f71\u97ff\u4ee5\u53ca\u5982\u4f55\u9032\u884c\u6545\u969c\u4fee\u5fa9\u3002<\/p>\n<h2 id=\"ora-48221%e7%9a%84%e5%8e%9f%e5%9b%a0-LUWIWFxAlK\">ORA-48221\u7684\u539f\u56e0<\/h2>\n<p>ORA-48221\u932f\u8aa4\u901a\u5e38\u51fa\u73fe\u5728\u4ee5\u4e0b\u5e7e\u7a2e\u60c5\u6cc1\u4e2d\uff1a<\/p>\n<ul>\n<li><strong>\u9375\u9577\u5ea6\u8d85\u904e\u9650\u5236\uff1a<\/strong>Oracle\u5c0d\u65bc\u9375\u7684\u9577\u5ea6\u6709\u660e\u78ba\u7684\u9650\u5236\uff0c\u901a\u5e38\u70ba4000\u5b57\u5143\u3002\u5982\u679c\u5617\u8a66\u63d2\u5165\u6216\u66f4\u65b0\u7684\u9375\u8d85\u904e\u6b64\u9577\u5ea6\uff0c\u5247\u6703\u5f15\u767c\u6b64\u932f\u8aa4\u3002<\/li>\n<li><strong>\u4e0d\u7576\u7684\u6578\u64da\u985e\u578b\uff1a<\/strong>\u5728\u67d0\u4e9b\u60c5\u6cc1\u4e0b\uff0c\u4f7f\u7528\u4e0d\u6b63\u78ba\u7684\u6578\u64da\u985e\u578b\uff08\u4f8b\u5982\uff0c\u5c07\u9577\u6587\u672c\u5b58\u5132\u5728VARCHAR2\u4e2d\uff09\u4e5f\u53ef\u80fd\u5c0e\u81f4\u6b64\u932f\u8aa4\u3002<\/li>\n<li><strong>\u7d22\u5f15\u554f\u984c\uff1a<\/strong>\u5982\u679c\u5728\u5275\u5efa\u7d22\u5f15\u6642\uff0c\u7d22\u5f15\u9375\u7684\u9577\u5ea6\u8d85\u904e\u4e86Oracle\u7684\u9650\u5236\uff0c\u4e5f\u6703\u51fa\u73fe\u6b64\u932f\u8aa4\u3002<\/li>\n<\/ul>\n<h2 id=\"%e5%bd%b1%e9%9f%bf-LUWIWFxAlK\">\u5f71\u97ff<\/h2>\n<p>ORA-48221\u932f\u8aa4\u6703\u5c0e\u81f4\u6578\u64da\u5eab\u64cd\u4f5c\u5931\u6557\uff0c\u9019\u53ef\u80fd\u6703\u5f71\u97ff\u61c9\u7528\u7a0b\u5e8f\u7684\u6b63\u5e38\u904b\u884c\uff0c\u4e26\u5c0e\u81f4\u6578\u64da\u4e1f\u5931\u6216\u4e0d\u4e00\u81f4\u3002\u56e0\u6b64\uff0c\u53ca\u6642\u4fee\u5fa9\u6b64\u932f\u8aa4\u662f\u975e\u5e38\u91cd\u8981\u7684\u3002<\/p>\n<h2 id=\"%e6%95%85%e9%9a%9c%e4%bf%ae%e5%be%a9%e6%ad%a5%e9%a9%9f-LUWIWFxAlK\">\u6545\u969c\u4fee\u5fa9\u6b65\u9a5f<\/h2>\n<p>\u4fee\u5fa9ORA-48221\u932f\u8aa4\u7684\u904e\u7a0b\u53ef\u4ee5\u5206\u70ba\u4ee5\u4e0b\u5e7e\u500b\u6b65\u9a5f\uff1a<\/p>\n<h3 id=\"1-%e7%a2%ba%e8%aa%8d%e9%8d%b5%e7%9a%84%e9%95%b7%e5%ba%a6-LUWIWFxAlK\">1. \u78ba\u8a8d\u9375\u7684\u9577\u5ea6<\/h3>\n<p>\u9996\u5148\uff0c\u60a8\u9700\u8981\u78ba\u8a8d\u5c0e\u81f4\u932f\u8aa4\u7684\u9375\u7684\u5be6\u969b\u9577\u5ea6\u3002\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0bSQL\u67e5\u8a62\u4f86\u6aa2\u67e5\u9375\u7684\u9577\u5ea6\uff1a<\/p>\n<pre><code>SELECT LENGTH(your_column) AS key_length\nFROM your_table\nWHERE your_condition;<\/code><\/pre>\n<h3 id=\"2-%e8%aa%bf%e6%95%b4%e6%95%b8%e6%93%9a%e9%a1%9e%e5%9e%8b-LUWIWFxAlK\">2. \u8abf\u6574\u6578\u64da\u985e\u578b<\/h3>\n<p>\u5982\u679c\u767c\u73fe\u9375\u7684\u9577\u5ea6\u8d85\u904e\u4e86\u9650\u5236\uff0c\u60a8\u53ef\u4ee5\u8003\u616e\u8abf\u6574\u6578\u64da\u985e\u578b\u3002\u4f8b\u5982\uff0c\u5c07VARCHAR2\u985e\u578b\u66f4\u6539\u70baCLOB\u985e\u578b\uff0c\u4ee5\u652f\u6301\u66f4\u9577\u7684\u6587\u672c\u3002<\/p>\n<pre><code>ALTER TABLE your_table\nMODIFY your_column CLOB;<\/code><\/pre>\n<h3 id=\"3-%e7%b0%a1%e5%8c%96%e9%8d%b5%e7%9a%84%e5%85%a7%e5%ae%b9-LUWIWFxAlK\">3. \u7c21\u5316\u9375\u7684\u5167\u5bb9<\/h3>\n<p>\u5982\u679c\u53ef\u80fd\uff0c\u7c21\u5316\u9375\u7684\u5167\u5bb9\u4ee5\u6e1b\u5c11\u5176\u9577\u5ea6\u3002\u9019\u53ef\u4ee5\u901a\u904e\u522a\u9664\u4e0d\u5fc5\u8981\u7684\u5b57\u7b26\u6216\u4f7f\u7528\u66f4\u77ed\u7684\u6a19\u8b58\u7b26\u4f86\u5be6\u73fe\u3002<\/p>\n<h3 id=\"4-%e9%87%8d%e6%96%b0%e5%89%b5%e5%bb%ba%e7%b4%a2%e5%bc%95-LUWIWFxAlK\">4. \u91cd\u65b0\u5275\u5efa\u7d22\u5f15<\/h3>\n<p>\u5982\u679c\u932f\u8aa4\u662f\u7531\u65bc\u7d22\u5f15\u9020\u6210\u7684\uff0c\u60a8\u9700\u8981\u522a\u9664\u4e26\u91cd\u65b0\u5275\u5efa\u7d22\u5f15\uff0c\u78ba\u4fdd\u7d22\u5f15\u9375\u7684\u9577\u5ea6\u5728\u5141\u8a31\u7bc4\u570d\u5167\u3002<\/p>\n<pre><code>DROP INDEX your_index;\nCREATE INDEX your_index ON your_table(your_column);<\/code><\/pre>\n<h3 id=\"5-%e6%b8%ac%e8%a9%a6%e5%92%8c%e9%a9%97%e8%ad%89-LUWIWFxAlK\">5. \u6e2c\u8a66\u548c\u9a57\u8b49<\/h3>\n<p>\u5728\u9032\u884c\u4e0a\u8ff0\u66f4\u6539\u5f8c\uff0c\u52d9\u5fc5\u9032\u884c\u6e2c\u8a66\u4ee5\u78ba\u4fdd\u554f\u984c\u5df2\u89e3\u6c7a\u3002\u53ef\u4ee5\u518d\u6b21\u904b\u884c\u539f\u59cb\u64cd\u4f5c\u4ee5\u78ba\u8a8d\u4e0d\u518d\u51fa\u73feORA-48221\u932f\u8aa4\u3002<\/p>\n<h2 id=\"%e7%b5%90%e8%ab%96-LUWIWFxAlK\">\u7d50\u8ad6<\/h2>\n<p>ORA-48221\u932f\u8aa4\u662fOracle\u6578\u64da\u5eab\u4e2d\u5e38\u898b\u7684\u554f\u984c\u4e4b\u4e00\uff0c\u4e86\u89e3\u5176\u539f\u56e0\u548c\u4fee\u5fa9\u65b9\u6cd5\u5c0d\u65bc\u6578\u64da\u5eab\u7ba1\u7406\u81f3\u95dc\u91cd\u8981\u3002\u901a\u904e\u78ba\u8a8d\u9375\u7684\u9577\u5ea6\u3001\u8abf\u6574\u6578\u64da\u985e\u578b\u3001\u7c21\u5316\u9375\u7684\u5167\u5bb9\u4ee5\u53ca\u91cd\u65b0\u5275\u5efa\u7d22\u5f15\uff0c\u60a8\u53ef\u4ee5\u6709\u6548\u5730\u89e3\u6c7a\u6b64\u554f\u984c\uff0c\u78ba\u4fdd\u6578\u64da\u5eab\u7684\u6b63\u5e38\u904b\u884c\u3002<\/p>\n<p>\u5982\u9700\u9032\u4e00\u6b65\u4e86\u89e3\u5982\u4f55\u512a\u5316\u60a8\u7684\u6578\u64da\u5eab\u74b0\u5883\uff0c\u6216\u5c0b\u627e\u5408\u9069\u7684\u89e3\u6c7a\u65b9\u6848\uff0c\u8acb\u8a2a\u554f\u6211\u5011\u7684\u7db2\u7ad9\uff0c\u4e86\u89e3\u66f4\u591a\u6709\u95dc<a href=\"https:\/\/server.hk\">\u9999\u6e2fVPS<\/a>\u548c<a href=\"https:\/\/server.hk\">\u96f2\u4f3a\u670d\u5668<\/a>\u7684\u8cc7\u8a0a\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u89e3\u6c7a ORA-48221 \u932f\u8aa4\uff1a\u9375\u8d85\u904e\u5141\u8a31\u7684\u6700\u5927\u9577\u5ea6\uff0c\u63d0\u4f9b\u6545\u969c\u4fee\u5fa9\u548c\u9060\u7a0b\u8655\u7406\u65b9\u6848\uff0c\u78ba\u4fdd Oracle \u6578\u64da\u5eab\u6b63\u5e38\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-93050","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/93050","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=93050"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/93050\/revisions"}],"predecessor-version":[{"id":93051,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/93050\/revisions\/93051"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=93050"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=93050"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=93050"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}