{"id":178756,"date":"2024-11-08T20:38:19","date_gmt":"2024-11-08T12:38:19","guid":{"rendered":"https:\/\/server.hk\/cnblog\/178756\/"},"modified":"2024-11-08T20:38:20","modified_gmt":"2024-11-08T12:38:20","slug":"%e5%a6%82%e4%bd%95%e4%bf%ae%e5%be%a9postgresql%e9%8c%af%e8%aa%a4%e4%bb%a3%e7%a2%bc%ef%bc%9a22027-trim_error%ef%bc%9f","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/178756\/","title":{"rendered":"\u5982\u4f55\u4fee\u5fa9PostgreSQL\u932f\u8aa4\u4ee3\u78bc\uff1a22027 &#8211; trim_error\uff1f"},"content":{"rendered":"<h1 id=\"%e5%a6%82%e4%bd%95%e4%bf%ae%e5%be%a9postgresql%e9%8c%af%e8%aa%a4%e4%bb%a3%e7%a2%bc%ef%bc%9a22027-trim_error%ef%bc%9f-LrddsghuLg\">\u5982\u4f55\u4fee\u5fa9PostgreSQL\u932f\u8aa4\u4ee3\u78bc\uff1a22027 &#8211; trim_error\uff1f<\/h1>\n<p>\u5728\u4f7f\u7528PostgreSQL\u6578\u64da\u5eab\u6642\uff0c\u958b\u767c\u8005\u53ef\u80fd\u6703\u9047\u5230\u5404\u7a2e\u932f\u8aa4\u4ee3\u78bc\uff0c\u5176\u4e2d\u4e4b\u4e00\u5c31\u662f\u932f\u8aa4\u4ee3\u78bc22027\uff0c\u901a\u5e38\u88ab\u7a31\u70batrim_error\u3002\u9019\u500b\u932f\u8aa4\u901a\u5e38\u8207\u6578\u64da\u7684\u683c\u5f0f\u6216\u985e\u578b\u4e0d\u5339\u914d\u6709\u95dc\uff0c\u7279\u5225\u662f\u5728\u8655\u7406\u5b57\u7b26\u4e32\u6642\u3002\u672c\u6587\u5c07\u6df1\u5165\u63a2\u8a0e\u9019\u500b\u932f\u8aa4\u7684\u539f\u56e0\u53ca\u5176\u89e3\u6c7a\u65b9\u6848\u3002<\/p>\n<h2 id=\"%e9%8c%af%e8%aa%a4%e4%bb%a3%e7%a2%bc22027%e7%9a%84%e5%8e%9f%e5%9b%a0-LrddsghuLg\">\u932f\u8aa4\u4ee3\u78bc22027\u7684\u539f\u56e0<\/h2>\n<p>PostgreSQL\u7684\u932f\u8aa4\u4ee3\u78bc22027\u901a\u5e38\u51fa\u73fe\u5728\u4ee5\u4e0b\u60c5\u6cc1\uff1a<\/p>\n<ul>\n<li><strong>\u6578\u64da\u985e\u578b\u4e0d\u5339\u914d\uff1a<\/strong>\u7576\u4f60\u5617\u8a66\u5c07\u4e00\u500b\u4e0d\u7b26\u5408\u9810\u671f\u683c\u5f0f\u7684\u5b57\u7b26\u4e32\u50b3\u905e\u7d66\u4e00\u500b\u51fd\u6578\u6216\u67e5\u8a62\u6642\uff0c\u53ef\u80fd\u6703\u5f15\u767c\u6b64\u932f\u8aa4\u3002\u4f8b\u5982\uff0c\u7576\u4f60\u4f7f\u7528trim\u51fd\u6578\u53bb\u9664\u5b57\u7b26\u4e32\u7684\u7a7a\u767d\u5b57\u7b26\uff0c\u4f46\u50b3\u5165\u7684\u53c3\u6578\u4e0d\u662f\u5b57\u7b26\u4e32\u985e\u578b\u6642\uff0c\u5c31\u6703\u51fa\u73fe\u9019\u500b\u932f\u8aa4\u3002<\/li>\n<li><strong>\u7121\u6548\u7684\u5b57\u7b26\uff1a<\/strong>\u5982\u679c\u5b57\u7b26\u4e32\u4e2d\u5305\u542b\u7121\u6cd5\u8655\u7406\u7684\u5b57\u7b26\uff0c\u9019\u4e5f\u53ef\u80fd\u5c0e\u81f4trim_error\u3002\u4f8b\u5982\uff0c\u67d0\u4e9b\u7279\u6b8a\u5b57\u7b26\u53ef\u80fd\u6703\u5e72\u64fe\u5b57\u7b26\u4e32\u7684\u8655\u7406\u3002<\/li>\n<li><strong>\u7a7a\u503c\u8655\u7406\uff1a<\/strong>\u5728\u67d0\u4e9b\u60c5\u6cc1\u4e0b\uff0c\u5c0d\u65bc\u7a7a\u503c\u7684\u8655\u7406\u4e0d\u7576\u4e5f\u53ef\u80fd\u5f15\u767c\u6b64\u932f\u8aa4\u3002\u7576\u4f60\u5617\u8a66\u5c0d\u4e00\u500b\u7a7a\u503c\u9032\u884ctrim\u64cd\u4f5c\u6642\uff0cPostgreSQL\u53ef\u80fd\u7121\u6cd5\u6b63\u78ba\u8655\u7406\u3002<\/li>\n<\/ul>\n<h2 id=\"%e5%a6%82%e4%bd%95%e4%bf%ae%e5%be%a9trim_error-LrddsghuLg\">\u5982\u4f55\u4fee\u5fa9trim_error<\/h2>\n<p>\u4fee\u5fa9PostgreSQL\u7684trim_error\u901a\u5e38\u9700\u8981\u6aa2\u67e5\u548c\u8abf\u6574\u4f60\u7684\u67e5\u8a62\u6216\u51fd\u6578\u8abf\u7528\u3002\u4ee5\u4e0b\u662f\u4e00\u4e9b\u5e38\u898b\u7684\u89e3\u6c7a\u65b9\u6848\uff1a<\/p>\n<h3 id=\"1-%e6%aa%a2%e6%9f%a5%e6%95%b8%e6%93%9a%e9%a1%9e%e5%9e%8b-LrddsghuLg\">1. \u6aa2\u67e5\u6578\u64da\u985e\u578b<\/h3>\n<p>\u9996\u5148\uff0c\u78ba\u4fdd\u4f60\u50b3\u905e\u7d66trim\u51fd\u6578\u7684\u53c3\u6578\u662f\u5b57\u7b26\u4e32\u985e\u578b\u3002\u4f60\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0bSQL\u67e5\u8a62\u4f86\u6aa2\u67e5\u6578\u64da\u985e\u578b\uff1a<\/p>\n<pre><code>SELECT column_name, data_type \nFROM information_schema.columns \nWHERE table_name = 'your_table_name';<\/code><\/pre>\n<p>\u5982\u679c\u767c\u73fe\u67d0\u500b\u5217\u7684\u6578\u64da\u985e\u578b\u4e0d\u662f\u5b57\u7b26\u4e32\uff0c\u5247\u9700\u8981\u9032\u884c\u985e\u578b\u8f49\u63db\u3002\u4f8b\u5982\uff1a<\/p>\n<pre><code>SELECT trim(your_column::text) FROM your_table_name;<\/code><\/pre>\n<h3 id=\"2-%e8%99%95%e7%90%86%e7%84%a1%e6%95%88%e5%ad%97%e7%ac%a6-LrddsghuLg\">2. \u8655\u7406\u7121\u6548\u5b57\u7b26<\/h3>\n<p>\u5982\u679c\u5b57\u7b26\u4e32\u4e2d\u5305\u542b\u7121\u6548\u5b57\u7b26\uff0c\u5247\u9700\u8981\u6e05\u7406\u9019\u4e9b\u5b57\u7b26\u3002\u53ef\u4ee5\u4f7f\u7528\u6b63\u5247\u8868\u9054\u5f0f\u4f86\u904e\u6ffe\u6389\u4e0d\u9700\u8981\u7684\u5b57\u7b26\u3002\u4f8b\u5982\uff1a<\/p>\n<pre><code>SELECT regexp_replace(your_column, '[^a-zA-Z0-9 ]', '', 'g') FROM your_table_name;<\/code><\/pre>\n<h3 id=\"3-%e8%99%95%e7%90%86%e7%a9%ba%e5%80%bc-LrddsghuLg\">3. \u8655\u7406\u7a7a\u503c<\/h3>\n<p>\u5728\u5c0d\u5b57\u7b26\u4e32\u9032\u884ctrim\u64cd\u4f5c\u4e4b\u524d\uff0c\u6aa2\u67e5\u8a72\u5b57\u7b26\u4e32\u662f\u5426\u70ba\u7a7a\u503c\u3002\u53ef\u4ee5\u4f7f\u7528COALESCE\u51fd\u6578\u4f86\u8655\u7406\u7a7a\u503c\uff1a<\/p>\n<pre><code>SELECT trim(COALESCE(your_column, '')) FROM your_table_name;<\/code><\/pre>\n<h2 id=\"%e7%a4%ba%e4%be%8b-LrddsghuLg\">\u793a\u4f8b<\/h2>\n<p>\u5047\u8a2d\u4f60\u6709\u4e00\u500b\u540d\u70bausers\u7684\u8868\uff0c\u4e26\u4e14\u4f60\u60f3\u8981\u53bb\u9664\u7528\u6236\u540d\u4e2d\u7684\u7a7a\u767d\u5b57\u7b26\u3002\u4f60\u53ef\u4ee5\u9019\u6a23\u5beb\uff1a<\/p>\n<pre><code>SELECT trim(username) FROM users WHERE username IS NOT NULL;<\/code><\/pre>\n<p>\u5982\u679cusername\u5217\u7684\u6578\u64da\u985e\u578b\u4e0d\u662f\u5b57\u7b26\u4e32\uff0c\u5247\u9700\u8981\u9032\u884c\u985e\u578b\u8f49\u63db\uff0c\u5982\u4e0b\u6240\u793a\uff1a<\/p>\n<pre><code>SELECT trim(username::text) FROM users WHERE username IS NOT NULL;<\/code><\/pre>\n<h2 id=\"%e7%b8%bd%e7%b5%90-LrddsghuLg\">\u7e3d\u7d50<\/h2>\n<p>PostgreSQL\u932f\u8aa4\u4ee3\u78bc22027 &#8211; trim_error\u901a\u5e38\u8207\u6578\u64da\u985e\u578b\u4e0d\u5339\u914d\u3001\u7121\u6548\u5b57\u7b26\u6216\u7a7a\u503c\u8655\u7406\u4e0d\u7576\u6709\u95dc\u3002\u901a\u904e\u6aa2\u67e5\u6578\u64da\u985e\u578b\u3001\u6e05\u7406\u7121\u6548\u5b57\u7b26\u4ee5\u53ca\u59a5\u5584\u8655\u7406\u7a7a\u503c\uff0c\u53ef\u4ee5\u6709\u6548\u5730\u4fee\u5fa9\u6b64\u932f\u8aa4\u3002\u5c0d\u65bc\u9700\u8981\u9ad8\u6548\u6578\u64da\u8655\u7406\u7684\u61c9\u7528\uff0c\u9078\u64c7\u5408\u9069\u7684<a href=\"https:\/\/server.hk\">VPS<\/a>\u89e3\u6c7a\u65b9\u6848\u5c07\u6709\u52a9\u65bc\u63d0\u5347\u6027\u80fd\u548c\u7a69\u5b9a\u6027\u3002\u4e86\u89e3\u66f4\u591a\u95dc\u65bc<a href=\"https:\/\/server.hk\">\u9999\u6e2fVPS<\/a>\u7684\u8cc7\u8a0a\uff0c\u8acb\u8a2a\u554f\u6211\u5011\u7684\u7db2\u7ad9\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u4e86\u89e3\u5982\u4f55\u4fee\u5fa9PostgreSQL\u932f\u8aa4\u4ee3\u78bc22027\uff08trim_error\uff09\uff0c\u89e3\u6c7a\u6578\u64da\u4fee\u526a\u554f\u984c\uff0c\u78ba\u4fdd\u6578\u64da\u5eab\u904b\u884c\u9806\u66a2\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-178756","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/178756","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=178756"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/178756\/revisions"}],"predecessor-version":[{"id":178757,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/178756\/revisions\/178757"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=178756"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=178756"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=178756"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}