{"id":21309,"date":"2024-01-02T07:14:29","date_gmt":"2024-01-02T07:14:29","guid":{"rendered":"https:\/\/server.hk\/blog\/21309\/"},"modified":"2024-11-14T10:37:03","modified_gmt":"2024-11-14T02:37:03","slug":"how-to-fix-postgresql-error-code-22026-string_data_length_mismatch","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/21309\/","title":{"rendered":"\u5982\u4f55\u4fee\u5fa9 PostgreSQL \u932f\u8aa4\u4ee3\u78bc\uff1a22026 &#8211; string_data_length_mismatch"},"content":{"rendered":"<h1 id=\"how-to-fix-postgresql-error-code-22026-string_data_length_mismatch-TcfvHhTVMX\">\u5982\u4f55\u4fee\u5fa9 PostgreSQL \u932f\u8aa4\u4ee3\u78bc\uff1a22026 &#8211; string_data_length_mismatch<\/h1>\n<p>PostgreSQL \u662f\u4e00\u500b\u529f\u80fd\u5f37\u5927\u7684\u958b\u6e90\u95dc\u4fc2\u578b\u6578\u64da\u5eab\u7ba1\u7406\u7cfb\u7d71\uff0c\u5ee3\u6cdb\u61c9\u7528\u65bc\u5168\u7403\u7684\u958b\u767c\u4eba\u54e1\u548c\u4f01\u696d\u3002\u7136\u800c\uff0c\u8207\u4efb\u4f55\u8edf\u4ef6\u4e00\u6a23\uff0cPostgreSQL \u4e5f\u53ef\u80fd\u9047\u5230\u4e00\u4e9b\u932f\u8aa4\uff0c\u9019\u4e9b\u932f\u8aa4\u53ef\u80fd\u6703\u5f71\u97ff\u5176\u529f\u80fd\u3002\u5176\u4e2d\u4e00\u500b\u932f\u8aa4\u662f PostgreSQL \u932f\u8aa4\u4ee3\u78bc\uff1a22026 &#8211; string_data_length_mismatch\u3002\u5728\u672c\u6587\u4e2d\uff0c\u6211\u5011\u5c07\u63a2\u8a0e\u8a72\u932f\u8aa4\u7684\u539f\u56e0\u4e26\u63d0\u4f9b\u89e3\u6c7a\u65b9\u6848\u4f86\u4fee\u5fa9\u5b83\u3002<\/p>\n<h2 id=\"understanding-postgresql-error-code-22026-TcfvHhTVMX\">\u4e86\u89e3 PostgreSQL \u932f\u8aa4\u4ee3\u78bc\uff1a22026<\/h2>\n<p>\u7576\u4f7f\u7528 PostgreSQL \u6642\uff0c\u60a8\u53ef\u80fd\u6703\u9047\u5230\u932f\u8aa4\u4ee3\u78bc 22026\uff0c\u9019\u8868\u793a\u5b57\u4e32\u6578\u64da\u9577\u5ea6\u4e0d\u5339\u914d\u3002\u6b64\u932f\u8aa4\u767c\u751f\u65bc\u7576\u60a8\u5617\u8a66\u5728\u67d0\u5217\u63d2\u5165\u6216\u66f4\u65b0\u8d85\u904e\u8a72\u5217\u5b9a\u7fa9\u9577\u5ea6\u7684\u503c\u6642\u3002PostgreSQL \u5f37\u5236\u57f7\u884c\u56b4\u683c\u7684\u6578\u64da\u985e\u578b\u6aa2\u67e5\uff0c\u4efb\u4f55\u63d2\u5165\u6216\u66f4\u65b0\u6578\u64da\u8d85\u904e\u5b9a\u7fa9\u9577\u5ea6\u7684\u64cd\u4f5c\u90fd\u6703\u5c0e\u81f4\u6b64\u932f\u8aa4\u3002<\/p>\n<h2 id=\"possible-causes-of-error-code-22026-TcfvHhTVMX\">\u932f\u8aa4\u4ee3\u78bc 22026 \u7684\u53ef\u80fd\u539f\u56e0<\/h2>\n<p>\u5c0e\u81f4 PostgreSQL \u932f\u8aa4\u4ee3\u78bc\uff1a22026 \u7684\u6f5b\u5728\u539f\u56e0\u6709\u5e7e\u7a2e\u3002\u6211\u5011\u4f86\u63a2\u8a0e\u4e00\u4e9b\u5e38\u898b\u60c5\u6cc1\uff1a<\/p>\n<ul>\n<li><strong>\u5217\u5b9a\u7fa9\u932f\u8aa4\uff1a<\/strong> \u8868\u67b6\u69cb\u4e2d\u7684\u5217\u5b9a\u7fa9\u53ef\u80fd\u8207\u5be6\u969b\u63d2\u5165\u6216\u66f4\u65b0\u7684\u6578\u64da\u4e0d\u5339\u914d\u3002\u8acb\u78ba\u4fdd\u5217\u9577\u5ea6\u5b9a\u7fa9\u6b63\u78ba\uff0c\u4ee5\u907f\u514d\u6b64\u932f\u8aa4\u3002<\/li>\n<li><strong>\u6578\u64da\u622a\u65b7\uff1a<\/strong> \u5982\u679c\u60a8\u63d2\u5165\u6216\u66f4\u65b0\u7684\u6578\u64da\u8d85\u904e\u4e86\u8a72\u5217\u7684\u5b9a\u7fa9\u9577\u5ea6\uff0cPostgreSQL \u5c07\u62cb\u51fa\u6b64\u932f\u8aa4\u3002\u8acb\u78ba\u4fdd\u5728\u63d2\u5165\u6216\u66f4\u65b0\u4e4b\u524d\u9a57\u8b49\u4e26\u622a\u65b7\u6578\u64da\u3002<\/li>\n<li><strong>\u7de8\u78bc\u4e0d\u5339\u914d\uff1a<\/strong> \u5982\u679c\u63d2\u5165\u6216\u66f4\u65b0\u7684\u6578\u64da\u7de8\u78bc\u8207\u8a72\u5217\u7684\u7de8\u78bc\u4e0d\u4e00\u81f4\uff0cPostgreSQL \u53ef\u80fd\u6703\u62cb\u51fa\u6b64\u932f\u8aa4\u3002\u8acb\u78ba\u4fdd\u7de8\u78bc\u4e00\u81f4\u3002<\/li>\n<\/ul>\n<h2 id=\"fixing-postgresql-error-code-22026-TcfvHhTVMX\">\u4fee\u5fa9 PostgreSQL \u932f\u8aa4\u4ee3\u78bc\uff1a22026<\/h2>\n<p>\u73fe\u5728\u6211\u5011\u4e86\u89e3\u4e86 PostgreSQL \u932f\u8aa4\u4ee3\u78bc\uff1a22026 \u7684\u53ef\u80fd\u539f\u56e0\uff0c\u63a5\u4e0b\u4f86\u63a2\u8a0e\u4e00\u4e9b\u89e3\u6c7a\u65b9\u6cd5\u4f86\u4fee\u5fa9\u5b83\uff1a<\/p>\n<h3 id=\"1-review-the-column-definition-TcfvHhTVMX\">1. \u6aa2\u67e5\u5217\u5b9a\u7fa9<\/h3>\n<p>\u6aa2\u67e5\u8868\u7684\u67b6\u69cb\uff0c\u78ba\u8a8d\u5217\u7684\u9577\u5ea6\u662f\u5426\u5b9a\u7fa9\u6b63\u78ba\u3002\u5982\u679c\u5b9a\u7fa9\u7684\u9577\u5ea6\u5c0d\u65bc\u60a8\u8981\u63d2\u5165\u6216\u66f4\u65b0\u7684\u6578\u64da\u4f86\u8aaa\u904e\u77ed\uff0c\u8acb\u76f8\u61c9\u5730\u4fee\u6539\u5217\u5b9a\u7fa9\u3002<\/p>\n<pre><code>ALTER TABLE table_name\r\nALTER COLUMN column_name TYPE character varying(new_length);<\/code><\/pre>\n<p>\u5c07 <code>table_name<\/code> \u66ff\u63db\u70ba\u60a8\u7684\u8868\u540d\uff0c<code>column_name<\/code> \u66ff\u63db\u70ba\u60a8\u8981\u4fee\u6539\u7684\u5217\u540d\uff0c\u4e26\u5c07 <code>new_length<\/code> \u8a2d\u7f6e\u70ba\u8a72\u5217\u7684\u671f\u671b\u9577\u5ea6\u3002<\/p>\n<h3 id=\"2-validate-and-truncate-data-TcfvHhTVMX\">2. \u9a57\u8b49\u4e26\u622a\u65b7\u6578\u64da<\/h3>\n<p>\u5728\u63d2\u5165\u6216\u66f4\u65b0\u6578\u64da\u4e4b\u524d\uff0c\u5148\u9a57\u8b49\u5176\u9577\u5ea6\u4e26\u5728\u5fc5\u8981\u6642\u622a\u65b7\u3002\u9019\u78ba\u4fdd\u6578\u64da\u5728\u5217\u5b9a\u7fa9\u7684\u9577\u5ea6\u7bc4\u570d\u5167\u3002<\/p>\n<pre><code>INSERT INTO table_name (column_name)\r\nVALUES (LEFT('your_data', max_length));<\/code><\/pre>\n<p>\u5c07 <code>table_name<\/code> \u66ff\u63db\u70ba\u60a8\u7684\u8868\u540d\uff0c<code>column_name<\/code> \u66ff\u63db\u70ba\u5217\u540d\uff0c<code>your_data<\/code> \u66ff\u63db\u70ba\u60a8\u8981\u63d2\u5165\u7684\u5be6\u969b\u6578\u64da\uff0c\u4e26\u5c07 <code>max_length<\/code> \u66ff\u63db\u70ba\u8a72\u5217\u7684\u6700\u5927\u9577\u5ea6\u3002<\/p>\n<h3 id=\"3-check-encoding-consistency-TcfvHhTVMX\">3. \u6aa2\u67e5\u7de8\u78bc\u4e00\u81f4\u6027<\/h3>\n<p>\u78ba\u4fdd\u63d2\u5165\u6216\u66f4\u65b0\u7684\u6578\u64da\u7de8\u78bc\u8207\u5217\u7684\u7de8\u78bc\u4e00\u81f4\u3002\u5982\u679c\u7de8\u78bc\u4e0d\u5339\u914d\uff0c\u8acb\u5728\u57f7\u884c\u64cd\u4f5c\u524d\u5c07\u6578\u64da\u8f49\u63db\u70ba\u6b63\u78ba\u7684\u7de8\u78bc\u3002<\/p>\n<pre><code>INSERT INTO table_name (column_name)\r\nVALUES (convert_from(convert_to('your_data', 'current_encoding'), 'desired_encoding'));<\/code><\/pre>\n<p>\u5c07 <code>table_name<\/code> \u66ff\u63db\u70ba\u60a8\u7684\u8868\u540d\uff0c<code>column_name<\/code> \u66ff\u63db\u70ba\u5217\u540d\uff0c<code>your_data<\/code> \u66ff\u63db\u70ba\u60a8\u8981\u63d2\u5165\u7684\u5be6\u969b\u6578\u64da\uff0c<code>current_encoding<\/code> \u66ff\u63db\u70ba\u6578\u64da\u7684\u7576\u524d\u7de8\u78bc\uff0c<code>desired_encoding<\/code> \u66ff\u63db\u70ba\u5217\u7684\u76ee\u6a19\u7de8\u78bc\u3002<\/p>\n<h2 id=\"summary-TcfvHhTVMX\">\u7e3d\u7d50<\/h2>\n<p>\u7e3d\u7d50\u4f86\u8aaa\uff0cPostgreSQL \u932f\u8aa4\u4ee3\u78bc\uff1a22026 &#8211; string_data_length_mismatch \u662f\u7531\u65bc\u5217\u7684\u5b9a\u7fa9\u9577\u5ea6\u8207\u63d2\u5165\u6216\u66f4\u65b0\u7684\u6578\u64da\u4e0d\u5339\u914d\u6240\u5f15\u767c\u7684\u3002\u70ba\u4fee\u5fa9\u8a72\u932f\u8aa4\uff0c\u60a8\u9700\u8981\u6aa2\u67e5\u5217\u5b9a\u7fa9\uff0c\u5fc5\u8981\u6642\u9a57\u8b49\u4e26\u622a\u65b7\u6578\u64da\uff0c\u4e26\u78ba\u4fdd\u7de8\u78bc\u4e00\u81f4\u3002\u901a\u904e\u9075\u5faa\u9019\u4e9b\u6b65\u9a5f\uff0c\u60a8\u53ef\u4ee5\u89e3\u6c7a PostgreSQL \u932f\u8aa4\u4ee3\u78bc\uff1a22026\uff0c\u78ba\u4fdd\u60a8\u7684 PostgreSQL \u6578\u64da\u5eab\u6b63\u5e38\u904b\u884c\u3002<\/p>\n<p>\u5982\u9700\u4e86\u89e3\u66f4\u591a\u95dc\u65bc VPS \u8a17\u7ba1\u89e3\u6c7a\u65b9\u6848\u7684\u8cc7\u8a0a\uff0c\u8acb\u8a2a\u554f <a href=\"https:\/\/server.hk\">Server.HK<\/a>\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u5982\u4f55\u4fee\u5fa9 PostgreSQL &#46;&#46;&#46;<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[4925],"tags":[],"class_list":["post-21309","post","type-post","status-publish","format-standard","hentry","category-4925"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/21309","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"}],"author":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/comments?post=21309"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/21309\/revisions"}],"predecessor-version":[{"id":24206,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/21309\/revisions\/24206"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=21309"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=21309"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=21309"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}