{"id":66489,"date":"2024-10-14T17:59:25","date_gmt":"2024-10-14T09:59:25","guid":{"rendered":"https:\/\/server.hk\/cnblog\/66489\/"},"modified":"2024-10-14T17:59:25","modified_gmt":"2024-10-14T09:59:25","slug":"mysql-%e9%8c%af%e8%aa%a4%e8%99%9f%ef%bc%9a3020%ef%bc%9b%e7%ac%a6%e8%99%9f%ef%bc%9aer_invalid_argument_for_logarithm%ef%bc%9bsqlstate%ef%bc%9a2201e-%e5%a0%b1%e9%8c%af-%e6%95%85%e9%9a%9c%e4%bf%ae","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/66489\/","title":{"rendered":"MySQL \u932f\u8aa4\u865f\uff1a3020\uff1b\u7b26\u865f\uff1aER_INVALID_ARGUMENT_FOR_LOGARITHM\uff1bSQLSTATE\uff1a2201E \u5831\u932f \u6545\u969c\u4fee\u5fa9 \u9060\u7a0b\u8655\u7406"},"content":{"rendered":"<h1 id=\"mysql-%e9%8c%af%e8%aa%a4%e8%99%9f%ef%bc%9a3020%ef%bc%9b%e7%ac%a6%e8%99%9f%ef%bc%9aer_invalid_argument_for_logarithm%ef%bc%9bsqlstate%ef%bc%9a2201e-%e5%a0%b1%e9%8c%af-%e6%95%85%e9%9a%9c%e4%bf%ae-dHwDtSADbl\">MySQL \u932f\u8aa4\u865f\uff1a3020\uff1b\u7b26\u865f\uff1aER_INVALID_ARGUMENT_FOR_LOGARITHM\uff1bSQLSTATE\uff1a2201E \u5831\u932f \u6545\u969c\u4fee\u5fa9 \u9060\u7a0b\u8655\u7406<\/h1>\n<p>\u5728\u4f7f\u7528 MySQL \u6578\u64da\u5eab\u6642\uff0c\u958b\u767c\u8005\u53ef\u80fd\u6703\u9047\u5230\u5404\u7a2e\u932f\u8aa4\uff0c\u5176\u4e2d\u4e4b\u4e00\u4fbf\u662f\u932f\u8aa4\u865f 3020\uff0c\u7b26\u865f\u70ba ER_INVALID_ARGUMENT_FOR_LOGARITHM\uff0cSQLSTATE \u70ba 2201E\u3002\u9019\u500b\u932f\u8aa4\u901a\u5e38\u51fa\u73fe\u5728\u5617\u8a66\u8a08\u7b97\u5c0d\u6578\u6642\uff0c\u50b3\u905e\u4e86\u7121\u6548\u7684\u53c3\u6578\u3002\u672c\u6587\u5c07\u6df1\u5165\u63a2\u8a0e\u8a72\u932f\u8aa4\u7684\u539f\u56e0\u3001\u5f71\u97ff\u4ee5\u53ca\u5982\u4f55\u9032\u884c\u6545\u969c\u4fee\u5fa9\u3002<\/p>\n<h2 id=\"%e9%8c%af%e8%aa%a4%e5%8e%9f%e5%9b%a0%e5%88%86%e6%9e%90-dHwDtSADbl\">\u932f\u8aa4\u539f\u56e0\u5206\u6790<\/h2>\n<p>MySQL \u4e2d\u7684\u5c0d\u6578\u51fd\u6578\uff08\u5982 LOG()\uff09\u8981\u6c42\u5176\u53c3\u6578\u5fc5\u9808\u662f\u6b63\u6578\u3002\u5982\u679c\u50b3\u905e\u7684\u53c3\u6578\u70ba\u96f6\u6216\u8ca0\u6578\uff0c\u5247\u6703\u5f15\u767c ER_INVALID_ARGUMENT_FOR_LOGARITHM \u932f\u8aa4\u3002\u4ee5\u4e0b\u662f\u4e00\u4e9b\u5e38\u898b\u7684\u60c5\u6cc1\uff0c\u53ef\u80fd\u5c0e\u81f4\u6b64\u932f\u8aa4\u7684\u767c\u751f\uff1a<\/p>\n<ul>\n<li><strong>\u6578\u64da\u985e\u578b\u4e0d\u5339\u914d\uff1a<\/strong>\u5982\u679c\u50b3\u905e\u7684\u53c3\u6578\u4e0d\u662f\u6578\u5b57\u985e\u578b\uff0c\u5247\u53ef\u80fd\u6703\u5c0e\u81f4\u932f\u8aa4\u3002<\/li>\n<li><strong>\u8a08\u7b97\u7d50\u679c\u70ba\u96f6\u6216\u8ca0\u6578\uff1a<\/strong>\u5728\u67d0\u4e9b\u8a08\u7b97\u4e2d\uff0c\u53ef\u80fd\u6703\u51fa\u73fe\u96f6\u6216\u8ca0\u6578\u7684\u7d50\u679c\uff0c\u9019\u6703\u5c0e\u81f4\u5c0d\u6578\u8a08\u7b97\u5931\u6557\u3002<\/li>\n<li><strong>\u6578\u64da\u5eab\u4e2d\u7684 NULL \u503c\uff1a<\/strong>\u5982\u679c\u53c3\u6578\u4e2d\u5305\u542b NULL \u503c\uff0c\u5247\u4e5f\u6703\u5f15\u767c\u6b64\u932f\u8aa4\u3002<\/li>\n<\/ul>\n<h2 id=\"%e9%8c%af%e8%aa%a4%e7%a4%ba%e4%be%8b-dHwDtSADbl\">\u932f\u8aa4\u793a\u4f8b<\/h2>\n<p>\u4ee5\u4e0b\u662f\u4e00\u500b\u7c21\u55ae\u7684 SQL \u67e5\u8a62\u793a\u4f8b\uff0c\u53ef\u80fd\u6703\u5c0e\u81f4\u8a72\u932f\u8aa4\uff1a<\/p>\n<pre><code>SELECT LOG(-1); -- \u5c07\u5f15\u767c ER_INVALID_ARGUMENT_FOR_LOGARITHM \u932f\u8aa4\nSELECT LOG(0);  -- \u5c07\u5f15\u767c ER_INVALID_ARGUMENT_FOR_LOGARITHM \u932f\u8aa4\nSELECT LOG(NULL); -- \u5c07\u5f15\u767c ER_INVALID_ARGUMENT_FOR_LOGARITHM \u932f\u8aa4\n<\/code><\/pre>\n<h2 id=\"%e6%95%85%e9%9a%9c%e4%bf%ae%e5%be%a9%e6%ad%a5%e9%a9%9f-dHwDtSADbl\">\u6545\u969c\u4fee\u5fa9\u6b65\u9a5f<\/h2>\n<p>\u8981\u4fee\u5fa9\u6b64\u932f\u8aa4\uff0c\u958b\u767c\u8005\u9700\u8981\u6aa2\u67e5\u50b3\u905e\u7d66 LOG() \u51fd\u6578\u7684\u53c3\u6578\uff0c\u78ba\u4fdd\u5b83\u5011\u662f\u6709\u6548\u7684\u6b63\u6578\u3002\u4ee5\u4e0b\u662f\u4e00\u4e9b\u5177\u9ad4\u7684\u4fee\u5fa9\u6b65\u9a5f\uff1a<\/p>\n<ul>\n<li><strong>\u6aa2\u67e5\u6578\u64da\u985e\u578b\uff1a<\/strong>\u78ba\u4fdd\u50b3\u905e\u7684\u53c3\u6578\u70ba\u6578\u5b57\u985e\u578b\uff0c\u4e26\u4e14\u4e0d\u70ba NULL\u3002<\/li>\n<li><strong>\u6dfb\u52a0\u689d\u4ef6\u904e\u6ffe\uff1a<\/strong>\u5728\u67e5\u8a62\u4e2d\u6dfb\u52a0\u689d\u4ef6\uff0c\u904e\u6ffe\u6389\u4e0d\u7b26\u5408\u8981\u6c42\u7684\u6578\u64da\u3002\u4f8b\u5982\uff1a<\/li>\n<\/ul>\n<pre><code>SELECT LOG(column_name) \nFROM table_name \nWHERE column_name &gt; 0; -- \u53ea\u8a08\u7b97\u5927\u65bc\u96f6\u7684\u503c\n<\/code><\/pre>\n<ul>\n<li><strong>\u4f7f\u7528 CASE \u8a9e\u53e5\uff1a<\/strong>\u53ef\u4ee5\u4f7f\u7528 CASE \u8a9e\u53e5\u4f86\u8655\u7406\u53ef\u80fd\u7684\u932f\u8aa4\u60c5\u6cc1\u3002\u4f8b\u5982\uff1a<\/li>\n<\/ul>\n<pre><code>SELECT \n    CASE \n        WHEN column_name &gt; 0 THEN LOG(column_name) \n        ELSE NULL \n    END AS log_value \nFROM table_name;\n<\/code><\/pre>\n<h2 id=\"%e9%81%a0%e7%a8%8b%e8%99%95%e7%90%86%e5%bb%ba%e8%ad%b0-dHwDtSADbl\">\u9060\u7a0b\u8655\u7406\u5efa\u8b70<\/h2>\n<p>\u5728\u9032\u884c\u9060\u7a0b\u8655\u7406\u6642\uff0c\u958b\u767c\u8005\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u65b9\u6cd5\u4f86\u6392\u67e5\u548c\u4fee\u5fa9\u6b64\u932f\u8aa4\uff1a<\/p>\n<ul>\n<li><strong>\u65e5\u8a8c\u6a94\u6848\u6aa2\u67e5\uff1a<\/strong>\u6aa2\u67e5 MySQL \u7684\u932f\u8aa4\u65e5\u8a8c\uff0c\u4ee5\u7372\u53d6\u66f4\u591a\u7684\u932f\u8aa4\u4fe1\u606f\u3002<\/li>\n<li><strong>\u9060\u7a0b\u9023\u63a5\u6e2c\u8a66\uff1a<\/strong>\u78ba\u4fdd\u9060\u7a0b\u9023\u63a5\u7684\u7a69\u5b9a\u6027\uff0c\u4e26\u6aa2\u67e5\u7db2\u7d61\u5ef6\u9072\u662f\u5426\u5f71\u97ff\u67e5\u8a62\u7684\u57f7\u884c\u3002<\/li>\n<li><strong>\u4f7f\u7528\u8abf\u8a66\u5de5\u5177\uff1a<\/strong>\u5229\u7528 MySQL \u7684\u8abf\u8a66\u5de5\u5177\u4f86\u8ddf\u8e2a\u67e5\u8a62\u7684\u57f7\u884c\u904e\u7a0b\uff0c\u627e\u51fa\u554f\u984c\u6240\u5728\u3002<\/li>\n<\/ul>\n<h2 id=\"%e7%b8%bd%e7%b5%90-dHwDtSADbl\">\u7e3d\u7d50<\/h2>\n<p>MySQL \u932f\u8aa4\u865f 3020\uff08ER_INVALID_ARGUMENT_FOR_LOGARITHM\uff09\u901a\u5e38\u662f\u7531\u65bc\u50b3\u905e\u4e86\u7121\u6548\u7684\u53c3\u6578\u7d66\u5c0d\u6578\u51fd\u6578\u800c\u5f15\u767c\u7684\u3002\u901a\u904e\u6aa2\u67e5\u6578\u64da\u985e\u578b\u3001\u904e\u6ffe\u4e0d\u5408\u683c\u6578\u64da\u4ee5\u53ca\u4f7f\u7528 CASE \u8a9e\u53e5\u7b49\u65b9\u6cd5\uff0c\u53ef\u4ee5\u6709\u6548\u5730\u4fee\u5fa9\u6b64\u932f\u8aa4\u3002\u5728\u9032\u884c\u9060\u7a0b\u8655\u7406\u6642\uff0c\u6aa2\u67e5\u65e5\u8a8c\u6a94\u6848\u548c\u4f7f\u7528\u8abf\u8a66\u5de5\u5177\u4e5f\u662f\u975e\u5e38\u91cd\u8981\u7684\u6b65\u9a5f\u3002\u82e5\u60a8\u9700\u8981\u9032\u4e00\u6b65\u7684\u652f\u6301\u6216\u5c0b\u627e\u5408\u9069\u7684 <a href=\"https:\/\/server.hk\">\u9999\u6e2f VPS<\/a> \u89e3\u6c7a\u65b9\u6848\uff0c\u8acb\u96a8\u6642\u8a2a\u554f\u6211\u5011\u7684\u7db2\u7ad9\u4ee5\u7372\u53d6\u66f4\u591a\u4fe1\u606f\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u89e3\u6c7a MySQL \u932f\u8aa4\u865f 3020 (ER_INVALID_ARGUMENT_FOR_LOGARITHM) \u7684\u6545\u969c\uff0c\u63d0\u4f9b\u9060\u7a0b\u8655\u7406\u65b9\u6848\uff0c\u52a9\u60a8\u5feb\u901f\u4fee\u5fa9\u554f\u984c\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-66489","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/66489","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=66489"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/66489\/revisions"}],"predecessor-version":[{"id":66490,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/66489\/revisions\/66490"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=66489"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=66489"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=66489"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}