{"id":96822,"date":"2024-10-20T12:39:18","date_gmt":"2024-10-20T04:39:18","guid":{"rendered":"https:\/\/server.hk\/cnblog\/96822\/"},"modified":"2024-10-20T12:39:19","modified_gmt":"2024-10-20T04:39:19","slug":"postgresql-42703-%e6%9c%aa%e5%ae%9a%e7%be%a9%e7%9a%84%e5%88%97-%e6%8a%a5%e9%94%99-%e6%95%85%e9%9a%9c%e4%bf%ae%e5%a4%8d-%e8%bf%9c%e7%a8%8b%e5%a4%84%e7%90%86","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/96822\/","title":{"rendered":"PostgreSQL 42703: \u672a\u5b9a\u7fa9\u7684\u5217 \u62a5\u9519 \u6545\u969c\u4fee\u590d \u8fdc\u7a0b\u5904\u7406"},"content":{"rendered":"<h1 id=\"postgresql-42703-%e6%9c%aa%e5%ae%9a%e7%be%a9%e7%9a%84%e5%88%97%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-kxnnghTubo\">PostgreSQL 42703: \u672a\u5b9a\u7fa9\u7684\u5217\u5831\u932f\u6545\u969c\u4fee\u5fa9\u9060\u7a0b\u8655\u7406<\/h1>\n<p>\u5728\u4f7f\u7528PostgreSQL\u6578\u64da\u5eab\u6642\uff0c\u958b\u767c\u8005\u53ef\u80fd\u6703\u9047\u5230\u5404\u7a2e\u932f\u8aa4\uff0c\u5176\u4e2d\u4e4b\u4e00\u4fbf\u662f\u201c42703: \u672a\u5b9a\u7fa9\u7684\u5217\u201d\u3002\u9019\u500b\u932f\u8aa4\u901a\u5e38\u8868\u793a\u5728\u67e5\u8a62\u4e2d\u5f15\u7528\u4e86\u4e00\u500b\u4e0d\u5b58\u5728\u7684\u5217\u3002\u672c\u6587\u5c07\u6df1\u5165\u63a2\u8a0e\u9019\u500b\u932f\u8aa4\u7684\u539f\u56e0\u3001\u89e3\u6c7a\u65b9\u6848\u4ee5\u53ca\u5982\u4f55\u9032\u884c\u9060\u7a0b\u8655\u7406\u3002<\/p>\n<h2 id=\"%e9%8c%af%e8%aa%a4%e5%8e%9f%e5%9b%a0%e5%88%86%e6%9e%90-kxnnghTubo\">\u932f\u8aa4\u539f\u56e0\u5206\u6790<\/h2>\n<p>PostgreSQL\u7684\u201c42703: \u672a\u5b9a\u7fa9\u7684\u5217\u201d\u932f\u8aa4\u901a\u5e38\u51fa\u73fe\u5728\u4ee5\u4e0b\u5e7e\u7a2e\u60c5\u6cc1\uff1a<\/p>\n<ul>\n<li><strong>\u62fc\u5beb\u932f\u8aa4\uff1a<\/strong>\u6700\u5e38\u898b\u7684\u539f\u56e0\u662f\u5217\u540d\u62fc\u5beb\u932f\u8aa4\u3002\u958b\u767c\u8005\u5728\u64b0\u5bebSQL\u67e5\u8a62\u6642\uff0c\u53ef\u80fd\u6703\u4e0d\u5c0f\u5fc3\u8f38\u5165\u932f\u8aa4\u7684\u5217\u540d\u3002<\/li>\n<li><strong>\u5217\u540d\u8b8a\u66f4\uff1a<\/strong>\u5982\u679c\u5728\u6578\u64da\u5eab\u4e2d\u5c0d\u8868\u7d50\u69cb\u9032\u884c\u4e86\u4fee\u6539\uff0c\u4f8b\u5982\u522a\u9664\u6216\u91cd\u547d\u540d\u5217\uff0c\u5247\u5728\u67e5\u8a62\u4e2d\u5f15\u7528\u820a\u7684\u5217\u540d\u6703\u5c0e\u81f4\u6b64\u932f\u8aa4\u3002<\/li>\n<li><strong>\u4f5c\u7528\u57df\u554f\u984c\uff1a<\/strong>\u5728\u4f7f\u7528JOIN\u6216\u5b50\u67e5\u8a62\u6642\uff0c\u53ef\u80fd\u6703\u51fa\u73fe\u5217\u540d\u7684\u4f5c\u7528\u57df\u554f\u984c\uff0c\u5c0e\u81f4\u67e5\u8a62\u7121\u6cd5\u6b63\u78ba\u8b58\u5225\u5217\u3002<\/li>\n<\/ul>\n<h2 id=\"%e6%95%85%e9%9a%9c%e4%bf%ae%e5%be%a9%e6%ad%a5%e9%a9%9f-kxnnghTubo\">\u6545\u969c\u4fee\u5fa9\u6b65\u9a5f<\/h2>\n<p>\u7576\u9047\u5230\u201c42703: \u672a\u5b9a\u7fa9\u7684\u5217\u201d\u932f\u8aa4\u6642\uff0c\u53ef\u4ee5\u6309\u7167\u4ee5\u4e0b\u6b65\u9a5f\u9032\u884c\u6545\u969c\u6392\u9664\uff1a<\/p>\n<h3 id=\"1-%e6%aa%a2%e6%9f%a5sql%e6%9f%a5%e8%a9%a2-kxnnghTubo\">1. \u6aa2\u67e5SQL\u67e5\u8a62<\/h3>\n<pre><code>SELECT column_name FROM table_name WHERE column_name = 'value';<\/code><\/pre>\n<p>\u9996\u5148\uff0c\u4ed4\u7d30\u6aa2\u67e5SQL\u67e5\u8a62\u4e2d\u7684\u5217\u540d\uff0c\u78ba\u4fdd\u5b83\u5011\u8207\u6578\u64da\u5eab\u4e2d\u7684\u5be6\u969b\u5217\u540d\u5b8c\u5168\u4e00\u81f4\u3002<\/p>\n<h3 id=\"2-%e6%9f%a5%e7%9c%8b%e8%a1%a8%e7%b5%90%e6%a7%8b-kxnnghTubo\">2. \u67e5\u770b\u8868\u7d50\u69cb<\/h3>\n<pre><code>SELECT * FROM information_schema.columns WHERE table_name = 'table_name';<\/code><\/pre>\n<p>\u4f7f\u7528\u4e0a\u8ff0\u67e5\u8a62\u67e5\u770b\u8868\u7684\u7d50\u69cb\uff0c\u78ba\u8a8d\u5217\u540d\u662f\u5426\u5b58\u5728\u3002\u5982\u679c\u5217\u540d\u5df2\u88ab\u66f4\u6539\uff0c\u5247\u9700\u8981\u66f4\u65b0\u67e5\u8a62\u3002<\/p>\n<h3 id=\"3-%e6%aa%a2%e6%9f%a5%e4%bd%9c%e7%94%a8%e5%9f%9f-kxnnghTubo\">3. \u6aa2\u67e5\u4f5c\u7528\u57df<\/h3>\n<p>\u5728\u4f7f\u7528JOIN\u6216\u5b50\u67e5\u8a62\u6642\uff0c\u78ba\u4fdd\u5217\u540d\u7684\u4f5c\u7528\u57df\u6b63\u78ba\u3002\u4f8b\u5982\uff1a<\/p>\n<pre><code>SELECT a.column_name FROM table_a a JOIN table_b b ON a.id = b.id WHERE b.column_name = 'value';<\/code><\/pre>\n<p>\u5728\u9019\u7a2e\u60c5\u6cc1\u4e0b\uff0c\u78ba\u4fdd\u4f7f\u7528\u6b63\u78ba\u7684\u8868\u5225\u540d\u4f86\u5f15\u7528\u5217\u3002<\/p>\n<h2 id=\"%e9%81%a0%e7%a8%8b%e8%99%95%e7%90%86%e5%bb%ba%e8%ad%b0-kxnnghTubo\">\u9060\u7a0b\u8655\u7406\u5efa\u8b70<\/h2>\n<p>\u5728\u67d0\u4e9b\u60c5\u6cc1\u4e0b\uff0c\u958b\u767c\u8005\u53ef\u80fd\u9700\u8981\u9032\u884c\u9060\u7a0b\u6545\u969c\u6392\u9664\u3002\u4ee5\u4e0b\u662f\u4e00\u4e9b\u5efa\u8b70\uff1a<\/p>\n<ul>\n<li><strong>\u4f7f\u7528\u9060\u7a0b\u684c\u9762\u5de5\u5177\uff1a<\/strong>\u53ef\u4ee5\u4f7f\u7528\u5982TeamViewer\u6216AnyDesk\u7b49\u5de5\u5177\uff0c\u8b93\u5176\u4ed6\u958b\u767c\u8005\u9060\u7a0b\u8a2a\u554f\u4f60\u7684\u7cfb\u7d71\uff0c\u5354\u52a9\u6aa2\u67e5\u554f\u984c\u3002<\/li>\n<li><strong>\u5171\u4eab\u4ee3\u78bc\u7247\u6bb5\uff1a<\/strong>\u4f7f\u7528GitHub\u6216Gist\u7b49\u5e73\u53f0\uff0c\u5c07SQL\u67e5\u8a62\u548c\u76f8\u95dc\u4ee3\u78bc\u7247\u6bb5\u5171\u4eab\u7d66\u5718\u968a\u6210\u54e1\uff0c\u4fbf\u65bc\u4ed6\u5011\u9032\u884c\u5be9\u67e5\u3002<\/li>\n<li><strong>\u65e5\u8a8c\u6a94\u6848\u5206\u6790\uff1a<\/strong>\u6aa2\u67e5PostgreSQL\u7684\u65e5\u8a8c\u6a94\u6848\uff0c\u5c0b\u627e\u66f4\u591a\u7684\u932f\u8aa4\u4fe1\u606f\uff0c\u9019\u6709\u52a9\u65bc\u5feb\u901f\u5b9a\u4f4d\u554f\u984c\u3002<\/li>\n<\/ul>\n<h2 id=\"%e7%b5%90%e8%ab%96-kxnnghTubo\">\u7d50\u8ad6<\/h2>\n<p>PostgreSQL\u7684\u201c42703: \u672a\u5b9a\u7fa9\u7684\u5217\u201d\u932f\u8aa4\u96d6\u7136\u5e38\u898b\uff0c\u4f46\u901a\u904e\u4ed4\u7d30\u6aa2\u67e5SQL\u67e5\u8a62\u3001\u8868\u7d50\u69cb\u548c\u4f5c\u7528\u57df\u554f\u984c\uff0c\u901a\u5e38\u53ef\u4ee5\u5feb\u901f\u89e3\u6c7a\u3002\u5c0d\u65bc\u9700\u8981\u9032\u884c\u9060\u7a0b\u8655\u7406\u7684\u60c5\u6cc1\uff0c\u5229\u7528\u73fe\u4ee3\u5de5\u5177\u548c\u5e73\u53f0\u53ef\u4ee5\u6709\u6548\u5730\u5354\u52a9\u6545\u969c\u6392\u9664\u3002\u82e5\u60a8\u5728\u5c0b\u627e\u7a69\u5b9a\u7684\u6578\u64da\u5eab\u89e3\u6c7a\u65b9\u6848\uff0c\u8003\u616e\u4f7f\u7528<a href=\"https:\/\/server.hk\">\u9999\u6e2fVPS<\/a>\u670d\u52d9\uff0c\u4ee5\u4fbf\u66f4\u597d\u5730\u7ba1\u7406\u548c\u904b\u884c\u60a8\u7684PostgreSQL\u6578\u64da\u5eab\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u89e3\u51b3PostgreSQL 42703\u9519\u8bef\uff1a\u672a\u5b9a\u4e49\u7684\u5217\u3002\u4e86\u89e3\u6545\u969c\u4fee\u590d\u548c\u8fdc\u7a0b\u5904\u7406\u65b9\u6cd5\uff0c\u786e\u4fdd\u6570\u636e\u5e93\u6b63\u5e38\u8fd0\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-96822","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/96822","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=96822"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/96822\/revisions"}],"predecessor-version":[{"id":96823,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/96822\/revisions\/96823"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=96822"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=96822"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=96822"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}