{"id":179046,"date":"2024-11-08T22:33:20","date_gmt":"2024-11-08T14:33:20","guid":{"rendered":"https:\/\/server.hk\/cnblog\/179046\/"},"modified":"2024-11-08T22:33:21","modified_gmt":"2024-11-08T14:33:21","slug":"%e5%a6%82%e4%bd%95%e4%bf%ae%e5%be%a9-postgresql-%e9%8c%af%e8%aa%a4%e4%bb%a3%e7%a2%bc%ef%bc%9a42p14-invalid_prepared_statement_definition%ef%bc%9f","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/179046\/","title":{"rendered":"\u5982\u4f55\u4fee\u5fa9 PostgreSQL \u932f\u8aa4\u4ee3\u78bc\uff1a42P14 &#8211; invalid_prepared_statement_definition\uff1f"},"content":{"rendered":"<h1 id=\"%e5%a6%82%e4%bd%95%e4%bf%ae%e5%be%a9-postgresql-%e9%8c%af%e8%aa%a4%e4%bb%a3%e7%a2%bc%ef%bc%9a42p14-invalid_prepared_statement_definition-xkgkyyRHVc\">\u5982\u4f55\u4fee\u5fa9 PostgreSQL \u932f\u8aa4\u4ee3\u78bc\uff1a42P14 &#8211; invalid_prepared_statement_definition<\/h1>\n<p>\u5728\u4f7f\u7528 PostgreSQL \u6578\u64da\u5eab\u6642\uff0c\u958b\u767c\u8005\u53ef\u80fd\u6703\u9047\u5230\u5404\u7a2e\u932f\u8aa4\u4ee3\u78bc\uff0c\u5176\u4e2d\u4e4b\u4e00\u662f\u932f\u8aa4\u4ee3\u78bc 42P14\uff0c\u8a72\u932f\u8aa4\u901a\u5e38\u8868\u793a\u300cinvalid_prepared_statement_definition\u300d\u3002\u9019\u500b\u932f\u8aa4\u901a\u5e38\u51fa\u73fe\u5728\u4f7f\u7528\u9810\u5099\u8a9e\u53e5\uff08prepared statements\uff09\u6642\uff0c\u7576\u8a9e\u53e5\u7684\u5b9a\u7fa9\u4e0d\u6b63\u78ba\u6216\u4e0d\u7b26\u5408 PostgreSQL \u7684\u8981\u6c42\u6642\uff0c\u5c31\u6703\u5f15\u767c\u6b64\u932f\u8aa4\u3002\u672c\u6587\u5c07\u63a2\u8a0e\u6b64\u932f\u8aa4\u7684\u539f\u56e0\u53ca\u5176\u89e3\u6c7a\u65b9\u6cd5\u3002<\/p>\n<h2 id=\"%e9%8c%af%e8%aa%a4%e5%8e%9f%e5%9b%a0%e5%88%86%e6%9e%90-xkgkyyRHVc\">\u932f\u8aa4\u539f\u56e0\u5206\u6790<\/h2>\n<p>\u932f\u8aa4\u4ee3\u78bc 42P14 \u7684\u51fa\u73fe\u901a\u5e38\u8207\u4ee5\u4e0b\u5e7e\u500b\u539f\u56e0\u6709\u95dc\uff1a<\/p>\n<ul>\n<li><strong>\u8a9e\u6cd5\u932f\u8aa4\uff1a<\/strong>\u9810\u5099\u8a9e\u53e5\u7684 SQL \u8a9e\u6cd5\u4e0d\u6b63\u78ba\uff0c\u53ef\u80fd\u662f\u56e0\u70ba\u62fc\u5beb\u932f\u8aa4\u6216\u4e0d\u6b63\u78ba\u7684 SQL \u7d50\u69cb\u3002<\/li>\n<li><strong>\u53c3\u6578\u4e0d\u5339\u914d\uff1a<\/strong>\u5728\u5b9a\u7fa9\u9810\u5099\u8a9e\u53e5\u6642\uff0c\u6240\u4f7f\u7528\u7684\u53c3\u6578\u985e\u578b\u8207\u5be6\u969b\u50b3\u905e\u7684\u53c3\u6578\u985e\u578b\u4e0d\u5339\u914d\u3002<\/li>\n<li><strong>\u91cd\u8907\u5b9a\u7fa9\uff1a<\/strong>\u540c\u4e00\u500b\u9810\u5099\u8a9e\u53e5\u88ab\u91cd\u8907\u5b9a\u7fa9\uff0c\u5c0e\u81f4 PostgreSQL \u7121\u6cd5\u6b63\u78ba\u8b58\u5225\u3002<\/li>\n<li><strong>\u4e0a\u4e0b\u6587\u554f\u984c\uff1a<\/strong>\u5728\u4e0d\u6b63\u78ba\u7684\u4e0a\u4e0b\u6587\u4e2d\u4f7f\u7528\u9810\u5099\u8a9e\u53e5\uff0c\u4f8b\u5982\u5728\u4e00\u500b\u4e0d\u652f\u6301\u9810\u5099\u8a9e\u53e5\u7684\u74b0\u5883\u4e2d\u3002<\/li>\n<\/ul>\n<h2 id=\"%e5%a6%82%e4%bd%95%e4%bf%ae%e5%be%a9%e9%8c%af%e8%aa%a4-xkgkyyRHVc\">\u5982\u4f55\u4fee\u5fa9\u932f\u8aa4<\/h2>\n<p>\u8981\u4fee\u5fa9 PostgreSQL \u932f\u8aa4\u4ee3\u78bc 42P14\uff0c\u958b\u767c\u8005\u53ef\u4ee5\u6309\u7167\u4ee5\u4e0b\u6b65\u9a5f\u9032\u884c\u6392\u67e5\u548c\u4fee\u6b63\uff1a<\/p>\n<h3 id=\"1-%e6%aa%a2%e6%9f%a5-sql-%e8%aa%9e%e6%b3%95-xkgkyyRHVc\">1. \u6aa2\u67e5 SQL \u8a9e\u6cd5<\/h3>\n<p>\u9996\u5148\uff0c\u6aa2\u67e5\u9810\u5099\u8a9e\u53e5\u7684 SQL \u8a9e\u6cd5\u662f\u5426\u6b63\u78ba\u3002\u53ef\u4ee5\u4f7f\u7528 PostgreSQL \u7684 SQL \u8a9e\u6cd5\u6aa2\u67e5\u5de5\u5177\uff0c\u6216\u5728 SQL \u5ba2\u6236\u7aef\u4e2d\u76f4\u63a5\u57f7\u884c\u8a72\u8a9e\u53e5\u4ee5\u78ba\u8a8d\u5176\u6b63\u78ba\u6027\u3002<\/p>\n<pre><code>PREPARE my_query AS SELECT * FROM my_table WHERE id = $1;<\/code><\/pre>\n<h3 id=\"2-%e7%a2%ba%e8%aa%8d%e5%8f%83%e6%95%b8%e9%a1%9e%e5%9e%8b-xkgkyyRHVc\">2. \u78ba\u8a8d\u53c3\u6578\u985e\u578b<\/h3>\n<p>\u78ba\u4fdd\u5728\u9810\u5099\u8a9e\u53e5\u4e2d\u4f7f\u7528\u7684\u53c3\u6578\u985e\u578b\u8207\u5be6\u969b\u50b3\u905e\u7684\u53c3\u6578\u985e\u578b\u76f8\u7b26\u3002\u4f8b\u5982\uff0c\u5982\u679c\u9810\u5099\u8a9e\u53e5\u4e2d\u4f7f\u7528\u7684\u662f\u6574\u6578\u985e\u578b\uff0c\u5247\u50b3\u905e\u7684\u53c3\u6578\u4e5f\u5fc5\u9808\u662f\u6574\u6578\u3002<\/p>\n<pre><code>EXECUTE my_query(123);<\/code><\/pre>\n<h3 id=\"3-%e9%81%bf%e5%85%8d%e9%87%8d%e8%a4%87%e5%ae%9a%e7%be%a9-xkgkyyRHVc\">3. \u907f\u514d\u91cd\u8907\u5b9a\u7fa9<\/h3>\n<p>\u6aa2\u67e5\u662f\u5426\u6709\u91cd\u8907\u5b9a\u7fa9\u7684\u9810\u5099\u8a9e\u53e5\u3002\u5982\u679c\u662f\uff0c\u5247\u9700\u8981\u522a\u9664\u6216\u91cd\u547d\u540d\u5176\u4e2d\u4e00\u500b\u9810\u5099\u8a9e\u53e5\u3002<\/p>\n<pre><code>DEALLOCATE my_query;<\/code><\/pre>\n<h3 id=\"4-%e7%a2%ba%e4%bf%9d%e4%b8%8a%e4%b8%8b%e6%96%87%e6%ad%a3%e7%a2%ba-xkgkyyRHVc\">4. \u78ba\u4fdd\u4e0a\u4e0b\u6587\u6b63\u78ba<\/h3>\n<p>\u78ba\u4fdd\u5728\u6b63\u78ba\u7684\u4e0a\u4e0b\u6587\u4e2d\u4f7f\u7528\u9810\u5099\u8a9e\u53e5\u3002\u4f8b\u5982\uff0c\u67d0\u4e9b\u51fd\u6578\u6216\u89f8\u767c\u5668\u53ef\u80fd\u4e0d\u652f\u6301\u9810\u5099\u8a9e\u53e5\uff0c\u9019\u6642\u9700\u8981\u8003\u616e\u5176\u4ed6\u66ff\u4ee3\u65b9\u6848\u3002<\/p>\n<h2 id=\"%e7%a4%ba%e4%be%8b-xkgkyyRHVc\">\u793a\u4f8b<\/h2>\n<p>\u4ee5\u4e0b\u662f\u4e00\u500b\u7c21\u55ae\u7684\u793a\u4f8b\uff0c\u5c55\u793a\u5982\u4f55\u6b63\u78ba\u5b9a\u7fa9\u548c\u57f7\u884c\u9810\u5099\u8a9e\u53e5\uff1a<\/p>\n<pre><code>PREPARE my_query AS SELECT * FROM my_table WHERE id = $1;\nEXECUTE my_query(1);\n<\/code><\/pre>\n<p>\u5982\u679c\u5728\u57f7\u884c\u904e\u7a0b\u4e2d\u51fa\u73fe\u932f\u8aa4\uff0c\u5247\u9700\u8981\u6839\u64da\u4e0a\u8ff0\u6b65\u9a5f\u9032\u884c\u6aa2\u67e5\u548c\u4fee\u6b63\u3002<\/p>\n<h2 id=\"%e7%b8%bd%e7%b5%90-xkgkyyRHVc\">\u7e3d\u7d50<\/h2>\n<p>PostgreSQL \u932f\u8aa4\u4ee3\u78bc 42P14 &#8211; invalid_prepared_statement_definition \u901a\u5e38\u662f\u7531\u65bc\u8a9e\u6cd5\u932f\u8aa4\u3001\u53c3\u6578\u4e0d\u5339\u914d\u3001\u91cd\u8907\u5b9a\u7fa9\u6216\u4e0a\u4e0b\u6587\u554f\u984c\u5f15\u8d77\u7684\u3002\u901a\u904e\u4ed4\u7d30\u6aa2\u67e5 SQL \u8a9e\u6cd5\u3001\u78ba\u8a8d\u53c3\u6578\u985e\u578b\u3001\u907f\u514d\u91cd\u8907\u5b9a\u7fa9\u4ee5\u53ca\u78ba\u4fdd\u4e0a\u4e0b\u6587\u6b63\u78ba\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\u4e5f\u662f\u81f3\u95dc\u91cd\u8981\u7684\uff0c\u9019\u6a23\u53ef\u4ee5\u78ba\u4fdd\u6578\u64da\u5eab\u7684\u7a69\u5b9a\u6027\u548c\u6027\u80fd\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u4e86\u89e3\u5982\u4f55\u4fee\u5fa9 PostgreSQL \u932f\u8aa4\u4ee3\u78bc 42P14 &#8211; invalid_prepared_statement_definition\uff0c\u89e3\u6c7a\u9810\u5099\u8a9e\u53e5\u5b9a\u7fa9\u554f\u984c\uff0c\u63d0\u5347\u6578\u64da\u5eab\u6027\u80fd\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-179046","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/179046","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=179046"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/179046\/revisions"}],"predecessor-version":[{"id":179047,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/179046\/revisions\/179047"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=179046"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=179046"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=179046"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}