{"id":21315,"date":"2024-01-02T07:20:25","date_gmt":"2024-01-02T07:20:25","guid":{"rendered":"https:\/\/server.hk\/blog\/21315\/"},"modified":"2024-11-14T10:36:55","modified_gmt":"2024-11-14T02:36:55","slug":"how-to-fix-postgresql-error-code-22p01-floating_point_exception","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/21315\/","title":{"rendered":"\u5982\u4f55\u4fee\u5fa9 PostgreSQL \u932f\u8aa4\u4ee3\u78bc\uff1a22P01 &#8211; \u6d6e\u9ede\u7570\u5e38"},"content":{"rendered":"<h1 id=\"how-to-fix-postgresql-error-code-22p01-floating_point_exception-ajjzTVTolm\">\u5982\u4f55\u4fee\u5fa9 PostgreSQL \u932f\u8aa4\u4ee3\u78bc\uff1a22P01 &#8211; \u6d6e\u9ede\u7570\u5e38<\/h1>\n<p>PostgreSQL \u662f\u4e00\u500b\u529f\u80fd\u5f37\u5927\u7684\u958b\u6e90\u95dc\u806f\u6578\u64da\u5eab\u7ba1\u7406\u7cfb\u7d71\uff0c\u5ee3\u6cdb\u61c9\u7528\u65bc\u5404\u7a2e\u61c9\u7528\u7a0b\u5e8f\u4e2d\u3002\u7136\u800c\uff0c\u50cf\u6240\u6709\u8edf\u4ef6\u4e00\u6a23\uff0c\u5b83\u4e5f\u53ef\u80fd\u9047\u5230\u6703\u5e72\u64fe\u6b63\u5e38\u904b\u884c\u7684\u932f\u8aa4\u3002\u5176\u4e2d\u4e00\u500b\u932f\u8aa4\u662f PostgreSQL \u932f\u8aa4\u4ee3\u78bc\uff1a22P01 &#8211; \u6d6e\u9ede\u7570\u5e38\u3002\u5728\u672c\u6587\u4e2d\uff0c\u6211\u5011\u5c07\u63a2\u8a0e\u6b64\u932f\u8aa4\u7684\u539f\u56e0\uff0c\u4e26\u63d0\u4f9b\u9010\u6b65\u7684\u89e3\u6c7a\u65b9\u6848\u4f86\u4fee\u5fa9\u5b83\u3002<\/p>\n<h2 id=\"understanding-the-error-ajjzTVTolm\">\u7406\u89e3\u932f\u8aa4<\/h2>\n<p>PostgreSQL \u932f\u8aa4\u4ee3\u78bc\uff1a22P01 &#8211; \u6d6e\u9ede\u7570\u5e38\u767c\u751f\u5728\u5617\u8a66\u57f7\u884c\u7121\u6548\u7684\u6d6e\u9ede\u904b\u7b97\u6642\u3002\u7576\u6578\u5b78\u904b\u7b97\u6d89\u53ca\u7121\u6548\u6216\u4e0d\u652f\u6301\u7684\u503c\u6642\uff0c\u901a\u5e38\u6703\u51fa\u73fe\u6b64\u932f\u8aa4\uff0c\u4f8b\u5982\u9664\u4ee5\u96f6\u6216\u5c0d\u8ca0\u6578\u53d6\u5e73\u65b9\u6839\u3002<\/p>\n<h2 id=\"possible-causes-ajjzTVTolm\">\u53ef\u80fd\u7684\u539f\u56e0<\/h2>\n<p>PostgreSQL \u932f\u8aa4\u4ee3\u78bc\uff1a22P01 &#8211; \u6d6e\u9ede\u7570\u5e38\u7684\u6f5b\u5728\u539f\u56e0\u6709\u5e7e\u500b\uff1a<\/p>\n<ul>\n<li><strong>\u7121\u6548\u8f38\u5165\uff1a<\/strong>\u5982\u679c\u63d0\u4f9b\u7d66\u6578\u5b78\u904b\u7b97\u7684\u8f38\u5165\u503c\u7121\u6548\u6216\u8d85\u51fa\u53ef\u63a5\u53d7\u7bc4\u570d\uff0c\u5247\u53ef\u80fd\u6703\u767c\u751f\u932f\u8aa4\u3002<\/li>\n<li><strong>\u9664\u4ee5\u96f6\uff1a<\/strong>\u5617\u8a66\u5c07\u4e00\u500b\u6578\u5b57\u9664\u4ee5\u96f6\u5c07\u5c0e\u81f4\u6d6e\u9ede\u7570\u5e38\u3002<\/li>\n<li><strong>\u4e0d\u652f\u6301\u7684\u64cd\u4f5c\uff1a<\/strong>\u67d0\u4e9b\u6578\u5b78\u904b\u7b97\uff0c\u4f8b\u5982\u5c0d\u8ca0\u6578\u53d6\u5e73\u65b9\u6839\uff0c\u662f\u4e0d\u652f\u6301\u7684\uff0c\u5c07\u6703\u89f8\u767c\u932f\u8aa4\u3002<\/li>\n<\/ul>\n<h2 id=\"fixing-the-error-ajjzTVTolm\">\u4fee\u5fa9\u932f\u8aa4<\/h2>\n<p>\u8981\u89e3\u6c7a PostgreSQL \u932f\u8aa4\u4ee3\u78bc\uff1a22P01 &#8211; \u6d6e\u9ede\u7570\u5e38\uff0c\u8acb\u9075\u5faa\u4ee5\u4e0b\u6b65\u9a5f\uff1a<\/p>\n<h3 id=\"1-check-input-values-ajjzTVTolm\">1. \u6aa2\u67e5\u8f38\u5165\u503c<\/h3>\n<p>\u78ba\u4fdd\u63d0\u4f9b\u7d66\u6578\u5b78\u904b\u7b97\u7684\u8f38\u5165\u503c\u6709\u6548\u4e14\u5728\u53ef\u63a5\u53d7\u7bc4\u570d\u5167\u3002\u5728\u57f7\u884c\u4efb\u4f55\u8a08\u7b97\u4e4b\u524d\u9a57\u8b49\u6578\u64da\uff0c\u4ee5\u907f\u514d\u9047\u5230\u932f\u8aa4\u3002<\/p>\n<h3 id=\"2-avoid-division-by-zero-ajjzTVTolm\">2. \u907f\u514d\u9664\u4ee5\u96f6<\/h3>\n<p>\u5728\u57f7\u884c\u9664\u6cd5\u904b\u7b97\u4e4b\u524d\uff0c\u6aa2\u67e5\u9664\u6578\u662f\u5426\u70ba\u96f6\u3002\u5982\u679c\u662f\uff0c\u5247\u9069\u7576\u8655\u7406\u8a72\u60c5\u6cc1\uff0c\u4f8b\u5982\u986f\u793a\u932f\u8aa4\u6d88\u606f\u6216\u5b8c\u5168\u8df3\u904e\u8a08\u7b97\u3002<\/p>\n<h3 id=\"3-handle-unsupported-operations-ajjzTVTolm\">3. \u8655\u7406\u4e0d\u652f\u6301\u7684\u64cd\u4f5c<\/h3>\n<p>\u5982\u679c\u60a8\u9047\u5230\u4e0d\u652f\u6301\u7684\u64cd\u4f5c\uff0c\u4f8b\u5982\u5c0d\u8ca0\u6578\u53d6\u5e73\u65b9\u6839\uff0c\u8003\u616e\u4f7f\u7528\u66ff\u4ee3\u65b9\u6cd5\u6216\u6578\u5b78\u51fd\u6578\u4f86\u9054\u5230\u6240\u9700\u7d50\u679c\u3002\u4f8b\u5982\uff0c\u60a8\u53ef\u4ee5\u4f7f\u7528 ABS \u51fd\u6578\u4f86\u7372\u53d6\u6578\u5b57\u7684\u7d55\u5c0d\u503c\uff0c\u7136\u5f8c\u518d\u57f7\u884c\u5e73\u65b9\u6839\u904b\u7b97\u3002<\/p>\n<h3 id=\"4-debug-and-test-ajjzTVTolm\">4. \u8abf\u8a66\u548c\u6e2c\u8a66<\/h3>\n<p>\u5982\u679c\u932f\u8aa4\u4ecd\u7136\u5b58\u5728\uff0c\u8acb\u5fb9\u5e95\u8abf\u8a66\u60a8\u7684\u4ee3\u78bc\u4e26\u4f7f\u7528\u4e0d\u540c\u7684\u8f38\u5165\u503c\u9032\u884c\u6e2c\u8a66\uff0c\u4ee5\u8b58\u5225\u4efb\u4f55\u6f5b\u5728\u554f\u984c\u3002\u6aa2\u67e5\u6578\u5b78\u904b\u7b97\uff0c\u78ba\u4fdd\u5176\u6b63\u78ba\u5be6\u73fe\u3002<\/p>\n<h2 id=\"summary-ajjzTVTolm\">\u7e3d\u7d50<\/h2>\n<p>PostgreSQL \u932f\u8aa4\u4ee3\u78bc\uff1a22P01 &#8211; 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