{"id":21311,"date":"2024-01-02T07:16:26","date_gmt":"2024-01-02T07:16:26","guid":{"rendered":"https:\/\/server.hk\/blog\/21311\/"},"modified":"2024-11-14T10:37:00","modified_gmt":"2024-11-14T02:37:00","slug":"how-to-fix-postgresql-error-code-22011-substring_error","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/21311\/","title":{"rendered":"\u5982\u4f55\u4fee\u5fa9 PostgreSQL \u932f\u8aa4\u4ee3\u78bc\uff1a22011 – substring_error"},"content":{"rendered":"

\u5982\u4f55\u4fee\u5fa9 PostgreSQL \u932f\u8aa4\u4ee3\u78bc\uff1a22011 – substring_error<\/h1>\n

PostgreSQL \u662f\u4e00\u6b3e\u529f\u80fd\u5f37\u5927\u7684\u958b\u6e90\u95dc\u806f\u5f0f\u6578\u64da\u5eab\u7ba1\u7406\u7cfb\u7d71\uff0c\u5ee3\u6cdb\u61c9\u7528\u65bc\u5168\u7403\u7684\u958b\u767c\u8005\u548c\u4f01\u696d\u3002\u7136\u800c\uff0c\u8207\u6240\u6709\u8edf\u9ad4\u4e00\u6a23\uff0cPostgreSQL \u4e5f\u53ef\u80fd\u9047\u5230\u59a8\u7919\u5176\u529f\u80fd\u7684\u932f\u8aa4\u3002\u5176\u4e2d\u4e00\u500b\u932f\u8aa4\u662f PostgreSQL \u932f\u8aa4\u4ee3\u78bc\uff1a22011 – substring_error\u3002\u5728\u672c\u6587\u4e2d\uff0c\u6211\u5011\u5c07\u63a2\u8a0e\u6b64\u932f\u8aa4\u7684\u610f\u7fa9\u4e26\u63d0\u4f9b\u4fee\u5fa9\u6b65\u9a5f\u3002<\/p>\n

\u4e86\u89e3 PostgreSQL \u932f\u8aa4\u4ee3\u78bc\uff1a22011 – substring_error<\/h2>\n

\u5728\u4f7f\u7528 PostgreSQL \u6642\uff0c\u60a8\u53ef\u80fd\u6703\u9047\u5230\u932f\u8aa4\u4ee3\u78bc 22011\uff0c\u8a72\u932f\u8aa4\u4f34\u96a8\u8457\u8a0a\u606f\u300csubstring_error\u300d\u3002\u7576\u60a8\u5617\u8a66\u4f7f\u7528 SUBSTRING \u51fd\u6578\u5f9e\u5b57\u7b26\u4e32\u4e2d\u63d0\u53d6\u5b50\u5b57\u7b26\u4e32\u6642\uff0c\u4f46\u6307\u5b9a\u7684\u8d77\u59cb\u4f4d\u7f6e\u6216\u9577\u5ea6\u7121\u6548\uff0c\u5c31\u6703\u767c\u751f\u6b64\u932f\u8aa4\u3002<\/p>\n

PostgreSQL \u4e2d\u7684 SUBSTRING \u51fd\u6578\u5141\u8a31\u60a8\u6839\u64da\u6307\u5b9a\u7684\u8d77\u59cb\u4f4d\u7f6e\u548c\u9577\u5ea6\u63d0\u53d6\u5b57\u7b26\u4e32\u7684\u4e00\u90e8\u5206\u3002\u7136\u800c\uff0c\u5982\u679c\u8d77\u59cb\u4f4d\u7f6e\u5c0f\u65bc 1 \u6216\u5927\u65bc\u5b57\u7b26\u4e32\u7684\u9577\u5ea6\uff0c\u6216\u8005\u9577\u5ea6\u70ba\u8ca0\uff0c\u5247\u6703\u5f15\u767c substring_error\u3002<\/p>\n

\u4fee\u5fa9 PostgreSQL \u932f\u8aa4\u4ee3\u78bc\uff1a22011 – substring_error<\/h2>\n

\u8981\u4fee\u5fa9 PostgreSQL \u932f\u8aa4\u4ee3\u78bc\uff1a22011 – substring_error\uff0c\u60a8\u9700\u8981\u78ba\u4fdd SUBSTRING \u51fd\u6578\u7684\u8d77\u59cb\u4f4d\u7f6e\u548c\u9577\u5ea6\u662f\u6709\u6548\u7684\u3002\u4ee5\u4e0b\u662f\u4e00\u4e9b\u60a8\u53ef\u4ee5\u9075\u5faa\u7684\u6b65\u9a5f\uff1a<\/p>\n

1. \u6aa2\u67e5\u8d77\u59cb\u4f4d\u7f6e<\/h3>\n

\u9a57\u8b49\u60a8\u6307\u5b9a\u7d66 SUBSTRING \u51fd\u6578\u7684\u8d77\u59cb\u4f4d\u7f6e\u662f\u5426\u5728\u6709\u6548\u7bc4\u570d\u5167\u3002\u8d77\u59cb\u4f4d\u7f6e\u61c9\u8a72\u5927\u65bc\u6216\u7b49\u65bc 1\uff0c\u4e14\u5c0f\u65bc\u6216\u7b49\u65bc\u5b57\u7b26\u4e32\u7684\u9577\u5ea6\u3002<\/p>\n

\u4f8b\u5982\uff0c\u5982\u679c\u60a8\u6709\u4e00\u500b\u5b57\u7b26\u4e32\u300cHello, World!\u300d\uff0c\u4e26\u4e14\u60f3\u8981\u63d0\u53d6\u5b50\u5b57\u7b26\u4e32\u300cWorld\u300d\uff0c\u90a3\u9ebc\u60a8\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u67e5\u8a62\uff1a<\/p>\n

SELECT SUBSTRING('Hello, World!', 8, 5);\r\n<\/code><\/pre>\n
\u5728\u9019\u7a2e\u60c5\u6cc1\u4e0b\uff0c\u8d77\u59cb\u4f4d\u7f6e\u662f 8\uff0c\u9019\u662f\u6709\u6548\u7684\uff0c\u56e0\u70ba\u5b83\u843d\u5728\u5b57\u7b26\u4e32\u9577\u5ea6\u7684\u7bc4\u570d\u5167\u3002<\/p>\n
2. \u9a57\u8b49\u9577\u5ea6<\/h3>\n
\u78ba\u4fdd\u60a8\u70ba SUBSTRING \u51fd\u6578\u6307\u5b9a\u7684\u9577\u5ea6\u662f\u4e00\u500b\u6b63\u503c\u3002\u8ca0\u9577\u5ea6\u6703\u5c0e\u81f4 substring_error\u3002\u9577\u5ea6\u4e5f\u61c9\u8003\u616e\u8d77\u59cb\u4f4d\u7f6e\u548c\u5b57\u7b26\u4e32\u9577\u5ea6\u800c\u5728\u6709\u6548\u7bc4\u570d\u5167\u3002<\/p>\n
\u7e7c\u7e8c\u524d\u9762\u7684\u793a\u4f8b\uff0c\u5982\u679c\u60a8\u60f3\u5f9e\u5b57\u7b26\u4e32\u300cHello, World!\u300d\u63d0\u53d6\u5b50\u5b57\u7b26\u4e32\u300cWorld\u300d\uff0c\u4f46\u932f\u8aa4\u5730\u6307\u5b9a\u4e86\u4e00\u500b\u8ca0\u9577\u5ea6\uff0c\u5247\u6703\u9047\u5230 substring_error\uff1a<\/p>\n
SELECT SUBSTRING('Hello, World!', 8, -5);\r\n<\/code><\/pre>\n
\u8981\u4fee\u5fa9\u6b64\u932f\u8aa4\uff0c\u8acb\u78ba\u4fdd\u9577\u5ea6\u662f\u6b63\u7684\u4e14\u9069\u5408\u6240\u9700\u7684\u5b50\u5b57\u7b26\u4e32\u3002<\/p>\n
3. \u8655\u7406\u7121\u6548\u8f38\u5165<\/h3>\n
\u5982\u679c\u60a8\u6b63\u5728\u8655\u7406\u7528\u6236\u8f38\u5165\u6216\u52d5\u614b\u503c\uff0c\u5247\u5728\u4f7f\u7528\u5b83\u5011\u9032\u884c SUBSTRING \u51fd\u6578\u4e4b\u524d\uff0c\u5c0d\u8f38\u5165\u9032\u884c\u9a57\u8b49\u548c\u6e05\u7406\u81f3\u95dc\u91cd\u8981\u3002\u9019\u4e00\u6b65\u6709\u52a9\u65bc\u9632\u6b62\u7121\u6548\u7684\u8f38\u5165\u89f8\u767c substring_error\u3002<\/p>\n
\u8003\u616e\u5be6\u65bd\u8f38\u5165\u9a57\u8b49\u548c\u932f\u8aa4\u8655\u7406\u6a5f\u5236\uff0c\u4ee5\u78ba\u4fdd\u50c5\u4f7f\u7528\u6709\u6548\u7684\u8f38\u5165\u9032\u884c SUBSTRING \u51fd\u6578\u3002<\/p>\n
\u6458\u8981<\/h2>\n
\u7e3d\u7d50\u4f86\u8aaa\uff0cPostgreSQL \u932f\u8aa4\u4ee3\u78bc\uff1a22011 – substring_error \u5728\u60a8\u5617\u8a66\u4f7f\u7528 SUBSTRING \u51fd\u6578\u63d0\u53d6\u5b50\u5b57\u7b26\u4e32\u6642\u51fa\u73fe\uff0c\u4e14\u8d77\u59cb\u4f4d\u7f6e\u6216\u9577\u5ea6\u503c\u7121\u6548\u3002\u8981\u4fee\u5fa9\u6b64\u932f\u8aa4\uff0c\u78ba\u4fdd\u6307\u5b9a\u7684\u8d77\u59cb\u4f4d\u7f6e\u548c\u9577\u5ea6\u5728\u6709\u6548\u7bc4\u570d\u5167\u3002\u9a57\u8b49\u7528\u6236\u8f38\u5165\u4e26\u8655\u7406\u4efb\u4f55\u6f5b\u5728\u932f\u8aa4\uff0c\u4ee5\u9632\u6b62 substring_error \u7684\u767c\u751f\u3002<\/p>\n
\u5982\u9700\u53ef\u9760\u800c\u9ad8\u6548\u7684 VPS \u8a17\u7ba1\u89e3\u6c7a\u65b9\u6848\uff0c\u8003\u616e\u806f\u7e6b Server.HK<\/a>\u3002\u6211\u5011\u7684\u8a17\u7ba1\u670d\u52d9\u65e8\u5728\u6eff\u8db3\u60a8\u7684\u7279\u5b9a\u9700\u6c42\uff0c\u4e26\u70ba\u60a8\u7684 PostgreSQL \u548c\u5176\u4ed6\u61c9\u7528\u63d0\u4f9b\u5353\u8d8a\u6027\u80fd\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"
\u5982\u4f55\u4fee\u5fa9 PostgreSQL ...<\/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-21311","post","type-post","status-publish","format-standard","hentry","category-4925"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/21311","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=21311"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/21311\/revisions"}],"predecessor-version":[{"id":24203,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/21311\/revisions\/24203"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=21311"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=21311"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=21311"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}