{"id":8604,"date":"2025-02-14T06:07:51","date_gmt":"2025-02-14T06:07:51","guid":{"rendered":"https:\/\/howtogeek.blog\/zh\/?p=8604"},"modified":"2025-02-14T06:07:51","modified_gmt":"2025-02-14T06:07:51","slug":"how-to-resolve-mysql-fatal-error-5-effective-solutions","status":"publish","type":"post","link":"https:\/\/howtogeek.blog\/zh\/how-to-resolve-mysql-fatal-error-5-effective-solutions\/","title":{"rendered":"\u5982\u4f55\u89e3\u6c7a MySQL \u81f4\u547d\u932f\u8aa4\uff1a5 \u7a2e\u6709\u6548\u89e3\u6c7a\u65b9\u6848"},"content":{"rendered":"<p>\u9047\u5230 MySQL \u81f4\u547d\u932f\u8aa4\u5c0d\u958b\u767c\u4eba\u54e1\u4f86\u8aaa\u53ef\u80fd\u662f\u4e00\u6b21\u8271\u9245\u7684\u7d93\u6b77\uff0c\u56e0\u70ba\u9019\u500b\u554f\u984c\u901a\u5e38\u6703\u963b\u6b62\u6b63\u78ba\u7684\u8cc7\u6599\u5eab\u5b58\u53d6\u3002\u5e78\u904b\u7684\u662f\uff0c\u6211\u5011\u5df2\u7d93\u5236\u5b9a\u4e86\u4e00\u7cfb\u5217\u7c21\u55ae\u7684\u89e3\u6c7a\u65b9\u6848\u4f86\u5e6b\u52a9\u60a8\u6709\u6548\u5730\u89e3\u6c7a\u9019\u4e9b\u932f\u8aa4\u3002<\/p>\n<h2 id=\"h-how-do-i-fix-a-fatal-error-in-mysql\">\u5982\u4f55\u4fee\u5fa9 MySQL \u4e2d\u7684\u81f4\u547d\u932f\u8aa4<\/h2>\n<p>\u5728\u6df1\u5165\u9032\u884c\u9032\u968e\u6545\u969c\u6392\u9664\u4e4b\u524d\uff0c\u9a57\u8b49\u8cc7\u6599\u5eab\u9023\u7dda\u81f3\u95dc\u91cd\u8981\u3002\u5c0d\u65bc\u672c\u5730\u8a2d\u7f6e\uff0c\u8acb\u8003\u616e\u4f7f\u7528<code>127.0.0.1<\/code>\u800c\u4e0d\u662f<code>localhost<\/code>\u3002<\/p>\n<h3 id=\"h-1-check-your-code\">1.\u5fb9\u5e95\u6aa2\u67e5\u4f60\u7684\u7a0b\u5f0f\u78bc<\/h3>\n<ul>\n<li>\u907f\u514d\u5728\u6a94\u6848\u540d\u7a31\u5b57\u4e32\u4e2d\u4f7f\u7528\u5f15\u865f\u3002\u800c\u4e0d\u662f<code><strong>general_log_file=\"A.log\"<\/strong><\/code>\uff0c\u4f7f\u7528<code><strong>general_log_file=.\/general.log<\/strong><\/code>\u6b63\u78ba\u7684\u8a9e\u6cd5\u3002<\/li>\n<li>\u6aa2\u67e5\u5f15\u865f\u7684\u4e00\u81f4\u4f7f\u7528\u3002\u5c07\u55ae\u5f15\u865f\u8207\u96d9\u5f15\u865f\u548c\u6487\u865f\u6df7\u5408\u4f7f\u7528\u53ef\u80fd\u6703\u5c0e\u81f4\u610f\u5916\u932f\u8aa4\u3002<\/li>\n<li>\u8acb\u8a18\u4f4f\u5728\u518d\u6b21\u6e2c\u8a66\u9023\u63a5\u4e4b\u524d\u4fdd\u5b58\u5c0d\u7a0b\u5f0f\u78bc\u6240\u505a\u7684\u6240\u6709\u66f4\u6539\u3002<\/li>\n<\/ul>\n<h3 id=\"h-2-try-upgrading-mysql\">2.\u5347\u7d1aMySQL\u7248\u672c<\/h3>\n<ul>\n<li>\u5728\u60a8\u7684\u6a5f\u5668\u4e0a\u958b\u555f\u7d42\u7aef\u61c9\u7528\u7a0b\u5f0f\u3002<\/li>\n<li>\u57f7\u884c\u547d\u4ee4\uff1a <code><strong>\/etc\/init.d\/mysqld start --skip-grant-tables &amp;&amp; mysql_upgrade<\/strong><\/code> <img alt=\"mysql \u5347\u7d1a\" class=\"wp-image\" decoding=\"async\" height=\"244\" loading=\"lazy\" src=\"https:\/\/cdn.howtogeek.blog\/wp-content\/uploads\/2025\/02\/mysql-upgrade.webp\" title=\"mysql \u5347\u7d1a\" width=\"690\"\/> <\/li>\n<li>\u5347\u7d1a\u5b8c\u6210\u5f8c\uff0c\u4f7f\u7528\u4e0b\u5217\u6307\u4ee4\u91cd\u65b0\u555f\u52d5 MySQL \u670d\u52d9\uff1a <code><strong>\/etc\/init.d\/mysqld restart<\/strong><\/code> <img alt=\"\" class=\"wp-image\" decoding=\"async\" height=\"168\" loading=\"lazy\" src=\"https:\/\/cdn.howtogeek.blog\/wp-content\/uploads\/2025\/02\/mysqld-restart.webp\" title=\"\" width=\"533\"\/> <\/li>\n<\/ul>\n<p>\u7576\u9047\u5230\u8868\u660e\u8868\u5df2\u640d\u58de\u7684\u81f4\u547d\u932f\u8aa4\u6642\uff0c\u6b64\u904e\u7a0b\u7279\u5225\u6709\u6548<code>mysql.user<\/code>\uff0c\u9019\u901a\u5e38\u662f\u7531\u65bc\u60a8\u7684\u88dd\u7f6e\u4e0a\u5b89\u88dd\u4e86\u591a\u500b MySQL \u7248\u672c\u9020\u6210\u7684\u3002<\/p>\n<h3 id=\"h-3-increase-the-timeouts\">3.\u589e\u52a0\u547d\u4ee4\u8d85\u6642<\/h3>\n<ul>\n<li>\u958b\u555f\u5df2\u5efa\u7acb\u8cc7\u6599\u5eab\u9023\u7dda\u7684\u7a0b\u5f0f\u78bc\u3002<\/li>\n<li>\u65b0\u589e\u4ee5\u4e0b\u884c\u4ee5\u589e\u52a0\u547d\u4ee4\u903e\u6642\u6642\u9593\uff1a <code><strong>cmd. CommandTimeout = 86400<\/strong><\/code> <img alt=\"\u547d\u4ee4\u8d85\u6642\" class=\"wp-image\" decoding=\"async\" height=\"123\" loading=\"lazy\" src=\"https:\/\/cdn.howtogeek.blog\/wp-content\/uploads\/2025\/02\/command-timeout.webp\" title=\"\u547d\u4ee4\u8d85\u6642\" width=\"484\"\/> <\/li>\n<li>\u8003\u616e\u5efa\u7acb\u7d22\u5f15\u4f86\u52a0\u5feb JOIN \u6d41\u7a0b\uff0c\u4f7f\u7528\u4ee5\u4e0b\u8a9e\u6cd5\uff1a <code><strong>CREATE INDEX bilan_siren ON bilan(siren); CREATE INDEX data_siren ON data(siren);<\/strong><\/code> <img alt=\"\" class=\"wp-image\" decoding=\"async\" height=\"201\" loading=\"lazy\" src=\"https:\/\/cdn.howtogeek.blog\/wp-content\/uploads\/2025\/02\/create-index-code.webp\" title=\"\" width=\"601\"\/> <\/li>\n<li>\u5be6\u65bd\u9019\u4e9b\u8b8a\u66f4\u5f8c\uff0c\u5132\u5b58\u7a0b\u5f0f\u78bc\u4e26\u518d\u6b21\u6e2c\u8a66\u9023\u63a5\uff0c\u770b\u770b\u554f\u984c\u662f\u5426\u4ecd\u7136\u5b58\u5728\u3002<\/li>\n<\/ul>\n<h3 id=\"h-4-add-timeouts-if-not-added\">4.\u5be6\u73fe\u9023\u7dda\u903e\u6642<\/h3>\n<ul>\n<li>\u8fd4\u56de\u60a8\u7684\u7a0b\u5f0f\u78bc\u4ee5\u78ba\u4fdd\u903e\u6642\u5df2\u9069\u7576\u5be6\u65bd\u3002<\/li>\n<li><code>connection. Open()<\/code>\u5728\u548c \u547c\u53eb\u4e4b\u9593\u63d2\u5165\u903e\u6642\u8a2d\u5b9a <code>ExecuteNonQuery()<\/code>\u5982\u4e0b\uff1a <code><strong>connection. Open(); MySqlCommand cmd = new MySqlCommand(\"set net_write_timeout=99999; set net_read_timeout=99999\", connection); cmd. ExecuteNonQuery(); int numOfRecordsUpdated = command. ExecuteNonQuery();<\/strong><\/code> <img alt=\"\" class=\"wp-image\" decoding=\"async\" height=\"242\" loading=\"lazy\" src=\"https:\/\/cdn.howtogeek.blog\/wp-content\/uploads\/2025\/02\/timeout-cmd.webp\" title=\"\" width=\"867\"\/> <\/li>\n<li>\u4e0d\u8981\u5fd8\u8a18\u4fdd\u5b58\u6240\u6709\u66f4\u6539\uff01<\/li>\n<\/ul>\n<h3 id=\"h-5-use-try-catch\">5.\u5be6\u4f5c Try-Catch \u9032\u884c\u932f\u8aa4\u8655\u7406<\/h3>\n<ul>\n<li>\u958b\u555f\u60a8\u7684 MySQL \u9023\u7dda\u7a0b\u5f0f\u78bc\u3002<\/li>\n<li>\u5f15\u5165 try-catch \u5340\u584a\u4f86\u6709\u6548\u7ba1\u7406\u7570\u5e38\uff0c\u5177\u9ad4\u7a0b\u5f0f\u78bc\u5982\u4e0b\uff1a <code><strong>function dbConnect() { try { return new mysqli('localhost', 'centr120_genuser', 'Baroque73!', 'centr120_cmp'); } catch(mysqli_sql_exception) {} return new mysqli('localhost', 'pract458_genuser', 'Gunjur64!', 'pract458_cmp'); }<\/strong><\/code> <img alt=\"\u5617\u8a66\u6355\u7372 mysql\" class=\"wp-image\" decoding=\"async\" height=\"234\" loading=\"lazy\" src=\"https:\/\/cdn.howtogeek.blog\/wp-content\/uploads\/2025\/02\/try-catch-mysql.webp\" title=\"\u5617\u8a66\u6355\u7372 mysql\" width=\"822\"\/> <\/li>\n<li>\u8a2d\u5b9a\u5b8c\u6210\u5f8c\uff0c\u8acb\u52d9\u5fc5\u5132\u5b58\u60a8\u7684\u5de5\u4f5c\u3002<\/li>\n<\/ul>\n<p>MySQL \u81f4\u547d\u932f\u8aa4\u8a0a\u606f\u6709\u5f88\u591a\u7a2e\uff0c\u6bcf\u7a2e\u90fd\u9700\u8981\u6839\u64da\u5176\u7279\u5b9a\u60c5\u6cc1\u63a1\u7528\u5ba2\u88fd\u5316\u7684\u65b9\u6cd5\u3002\u7136\u800c\uff0c\u4f5c\u70ba\u4e00\u822c\u7684\u6700\u4f73\u5be6\u8e10\uff0c\u5728\u63a2\u7d22\u66f4\u8907\u96dc\u7684\u89e3\u6c7a\u65b9\u6848\u4e4b\u524d\uff0c\u5148\u5f9e\u7a0b\u5f0f\u78bc\u9a57\u8b49\u548c\u903e\u6642\u5be6\u4f5c\u958b\u59cb\u3002<\/p>\n<p>\u6b64\u5916\uff0c\u5728\u89e3\u6c7a\u5176\u4ed6\u554f\u984c\u4e4b\u524d\uff0c\u5b9a\u671f\u5099\u4efd MySQL \u8cc7\u6599\u5eab\u4e26\u5617\u8a66\u4fee\u5fa9 SQL Server \u4e2d\u4efb\u4f55\u640d\u58de\u7684\u8cc7\u6599\u5eab\u81f3\u95dc\u91cd\u8981\u3002<\/p>\n<h2>\u5e38\u898b\u554f\u984c<\/h2>\n<h3><strong>1.\u4ec0\u9ebc\u539f\u56e0\u6703\u5c0e\u81f4 MySQL \u81f4\u547d\u932f\u8aa4\uff1f<\/strong><\/h3>\n<p>MySQL \u81f4\u547d\u932f\u8aa4\u53ef\u80fd\u7531\u591a\u7a2e\u56e0\u7d20\u89f8\u767c\uff0c\u5305\u62ec\u4e0d\u6b63\u78ba\u7684\u9023\u63a5\u53c3\u6578\u3001\u640d\u58de\u7684\u8cc7\u6599\u5eab\u8868\u6216\u7531\u65bc\u5728\u540c\u4e00\u7cfb\u7d71\u4e0a\u5b89\u88dd\u591a\u500b MySQL \u7248\u672c\u800c\u5c0e\u81f4\u7684\u885d\u7a81\u3002<\/p>\n<h3><strong>2.\u5982\u4f55\u8fa8\u8b58\u5177\u9ad4\u7684\u81f4\u547d\u932f\u8aa4\u8a0a\u606f\uff1f<\/strong><\/h3>\n<p>\u82e5\u8981\u627e\u51fa\u78ba\u5207\u7684\u81f4\u547d\u932f\u8aa4\u8a0a\u606f\uff0c\u8acb\u6aa2\u67e5 MySQL \u932f\u8aa4\u65e5\u8a8c\uff0c\u8a72\u65e5\u8a8c\u901a\u5e38\u53ef\u4ee5\u5728 MySQL \u5b89\u88dd\u76ee\u9304\u4e2d\u627e\u5230\u3002\u5206\u6790\u65e5\u8a8c\u5c07\u6709\u52a9\u65bc\u4e86\u89e3\u932f\u8aa4\u7684\u539f\u56e0\u3002<\/p>\n<h3><strong>3.\u6211\u53ef\u4ee5\u6062\u5fa9\u640d\u58de\u7684 MySQL \u8cc7\u6599\u5eab\u55ce\uff1f<\/strong><\/h3>\n<p>\u662f\u7684\uff0c\u53ef\u4ee5\u9084\u539f\u640d\u58de\u7684 MySQL \u8cc7\u6599\u5eab\u3002\u60a8\u53ef\u4ee5\u4f7f\u7528\u8a72<code>mysqlcheck<\/code>\u5be6\u7528\u7a0b\u5f0f\u4fee\u5fa9\u8868\uff0c\u4e26\u59cb\u7d42\u78ba\u4fdd\u5728\u5617\u8a66\u4efb\u4f55\u5fa9\u539f\u7a0b\u5e8f\u4e4b\u524d\u64c1\u6709\u5099\u4efd\u526f\u672c\u3002<\/p>\n<p><a class=\"xiaomi\" href=\"https:\/\/windowsreport.com\/mysql-fatal-error\/\" rel=\"noopener noreferrer nofollow\" target=\"_blank\">\u4f86\u6e90\u548c\u5716\u7247<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u9047\u5230 MySQL \u81f4\u547d\u932f\u8aa4\u5c0d\u958b\u767c\u4eba\u54e1\u4f86\u8aaa\u53ef\u80fd\u662f\u4e00\u6b21\u8271\u9245\u7684\u7d93\u6b77\uff0c\u56e0\u70ba\u9019\u500b\u554f\u984c\u901a\u5e38\u6703\u963b\u6b62\u6b63\u78ba\u7684\u8cc7\u6599\u5eab\u5b58\u53d6\u3002\u5e78\u904b\u7684\u662f\uff0c\u6211\u5011\u5df2\u7d93\u5236\u5b9a\u4e86\u4e00\u7cfb\u5217\u7c21\u55ae\u7684\u89e3\u6c7a\u65b9\u6848\u4f86\u5e6b\u52a9\u60a8\u6709\u6548\u5730\u89e3\u6c7a\u9019\u4e9b\u932f\u8aa4\u3002 \u5982\u4f55\u4fee\u5fa9 MySQL \u4e2d\u7684\u81f4\u547d\u932f\u8aa4 \u5728\u6df1\u5165\u9032\u884c\u9032\u968e\u6545\u969c\u6392\u9664\u4e4b\u524d\uff0c\u9a57\u8b49\u8cc7\u6599\u5eab\u9023\u7dda\u81f3\u95dc\u91cd\u8981\u3002\u5c0d\u65bc\u672c\u5730\u8a2d\u7f6e\uff0c\u8acb\u8003\u616e\u4f7f\u7528127.0.0.1\u800c\u4e0d\u662flocalhost\u3002 1.\u5fb9\u5e95\u6aa2\u67e5\u4f60\u7684\u7a0b\u5f0f\u78bc \u907f\u514d\u5728\u6a94\u6848\u540d\u7a31\u5b57\u4e32\u4e2d\u4f7f\u7528\u5f15\u865f\u3002\u800c\u4e0d\u662fgeneral_log_file=&#8221;A.log&#8221;\uff0c\u4f7f\u7528general_log_file=.\/general.log\u6b63\u78ba\u7684\u8a9e\u6cd5\u3002 \u6aa2\u67e5\u5f15\u865f\u7684\u4e00\u81f4\u4f7f\u7528\u3002\u5c07\u55ae\u5f15\u865f\u8207\u96d9\u5f15\u865f\u548c\u6487\u865f\u6df7\u5408\u4f7f\u7528\u53ef\u80fd\u6703\u5c0e\u81f4\u610f\u5916\u932f\u8aa4\u3002 \u8acb\u8a18\u4f4f\u5728\u518d\u6b21\u6e2c\u8a66\u9023\u63a5\u4e4b\u524d\u4fdd\u5b58\u5c0d\u7a0b\u5f0f\u78bc\u6240\u505a\u7684\u6240\u6709\u66f4\u6539\u3002 2.\u5347\u7d1aMySQL\u7248\u672c \u5728\u60a8\u7684\u6a5f\u5668\u4e0a\u958b\u555f\u7d42\u7aef\u61c9\u7528\u7a0b\u5f0f\u3002 \u57f7\u884c\u547d\u4ee4\uff1a \/etc\/init.d\/mysqld start &#8211;skip-grant-tables &amp;&amp; mysql_upgrade \u5347\u7d1a\u5b8c\u6210\u5f8c\uff0c\u4f7f\u7528\u4e0b\u5217\u6307\u4ee4\u91cd\u65b0\u555f\u52d5 MySQL \u670d\u52d9\uff1a \/etc\/init.d\/mysqld restart \u7576\u9047\u5230\u8868\u660e\u8868\u5df2\u640d\u58de\u7684\u81f4\u547d\u932f\u8aa4\u6642\uff0c\u6b64\u904e\u7a0b\u7279\u5225\u6709\u6548mysql.user\uff0c\u9019\u901a\u5e38\u662f\u7531\u65bc\u60a8\u7684\u88dd\u7f6e\u4e0a\u5b89\u88dd\u4e86\u591a\u500b MySQL \u7248\u672c\u9020\u6210\u7684\u3002 3.\u589e\u52a0\u547d\u4ee4\u8d85\u6642 \u958b\u555f\u5df2\u5efa\u7acb\u8cc7\u6599\u5eab\u9023\u7dda\u7684\u7a0b\u5f0f\u78bc\u3002 \u65b0\u589e\u4ee5\u4e0b\u884c\u4ee5\u589e\u52a0\u547d\u4ee4\u903e\u6642\u6642\u9593\uff1a cmd. CommandTimeout = 86400 \u8003\u616e\u5efa\u7acb\u7d22\u5f15\u4f86\u52a0\u5feb JOIN \u6d41\u7a0b\uff0c\u4f7f\u7528\u4ee5\u4e0b\u8a9e\u6cd5\uff1a CREATE INDEX bilan_siren ON bilan(siren); CREATE INDEX data_siren ON data(siren); \u5be6\u65bd\u9019\u4e9b\u8b8a\u66f4\u5f8c\uff0c\u5132\u5b58\u7a0b\u5f0f\u78bc\u4e26\u518d\u6b21\u6e2c\u8a66\u9023\u63a5\uff0c\u770b\u770b\u554f\u984c\u662f\u5426\u4ecd\u7136\u5b58\u5728\u3002 4.\u5be6\u73fe\u9023\u7dda\u903e\u6642 \u8fd4\u56de\u60a8\u7684\u7a0b\u5f0f\u78bc\u4ee5\u78ba\u4fdd\u903e\u6642\u5df2\u9069\u7576\u5be6\u65bd\u3002 connection. Open()\u5728\u548c \u547c\u53eb\u4e4b\u9593\u63d2\u5165\u903e\u6642\u8a2d\u5b9a ExecuteNonQuery()\u5982\u4e0b\uff1a connection. 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