{"id":177899,"date":"2024-11-08T16:29:29","date_gmt":"2024-11-08T08:29:29","guid":{"rendered":"https:\/\/server.hk\/cnblog\/177899\/"},"modified":"2024-11-08T16:29:30","modified_gmt":"2024-11-08T08:29:30","slug":"%e5%a6%82%e4%bd%95%e4%bf%ae%e5%be%a9mysql%e9%8c%af%e8%aa%a41231-sqlstate-42000-er_wrong_value_for_var-%e8%ae%8a%e9%87%8fs%e4%b8%8d%e8%83%bd%e8%a8%ad%e7%bd%ae%e7%82%bas%e7%9a%84%e5%80%bc","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/177899\/","title":{"rendered":"\u5982\u4f55\u4fee\u5fa9MySQL\u932f\u8aa41231 &#8211; SQLSTATE: 42000 (ER_WRONG_VALUE_FOR_VAR) \u8b8a\u91cf&#8217;%s&#8217;\u4e0d\u80fd\u8a2d\u7f6e\u70ba&#8217;%s&#8217;\u7684\u503c"},"content":{"rendered":"<h1 id=\"%e5%a6%82%e4%bd%95%e4%bf%ae%e5%be%a9mysql%e9%8c%af%e8%aa%a41231-sqlstate-42000-er_wrong_value_for_var-vMRXZwYkMC\">\u5982\u4f55\u4fee\u5fa9MySQL\u932f\u8aa41231 &#8211; SQLSTATE: 42000 (ER_WRONG_VALUE_FOR_VAR)<\/h1>\n<p>\u5728\u4f7f\u7528MySQL\u6578\u64da\u5eab\u6642\uff0c\u958b\u767c\u8005\u53ef\u80fd\u6703\u9047\u5230\u5404\u7a2e\u932f\u8aa4\uff0c\u5176\u4e2d\u4e4b\u4e00\u5c31\u662f\u932f\u8aa4\u4ee3\u78bc1231\uff0c\u8a72\u932f\u8aa4\u7684\u5177\u9ad4\u4fe1\u606f\u70ba\u201cSQLSTATE: 42000 (ER_WRONG_VALUE_FOR_VAR) \u8b8a\u91cf&#8217;%s&#8217;\u4e0d\u80fd\u8a2d\u7f6e\u70ba&#8217;%s&#8217;\u7684\u503c\u201d\u3002\u9019\u500b\u932f\u8aa4\u901a\u5e38\u51fa\u73fe\u5728\u5617\u8a66\u8a2d\u7f6e\u4e00\u500b\u8b8a\u91cf\u7684\u503c\u6642\uff0c\u8a72\u503c\u4e0d\u7b26\u5408\u8b8a\u91cf\u7684\u985e\u578b\u6216\u7bc4\u570d\u9650\u5236\u3002\u672c\u6587\u5c07\u6df1\u5165\u63a2\u8a0e\u9019\u500b\u932f\u8aa4\u7684\u539f\u56e0\u53ca\u5176\u89e3\u6c7a\u65b9\u6848\u3002<\/p>\n<h2 id=\"%e9%8c%af%e8%aa%a4%e5%8e%9f%e5%9b%a0%e5%88%86%e6%9e%90-vMRXZwYkMC\">\u932f\u8aa4\u539f\u56e0\u5206\u6790<\/h2>\n<p>MySQL\u4e2d\u7684\u8b8a\u91cf\u53ef\u4ee5\u5206\u70ba\u7cfb\u7d71\u8b8a\u91cf\u548c\u7528\u6236\u8b8a\u91cf\u3002\u7576\u4f60\u5617\u8a66\u8a2d\u7f6e\u4e00\u500b\u8b8a\u91cf\u7684\u503c\u6642\uff0c\u5982\u679c\u8a72\u503c\u4e0d\u7b26\u5408\u9810\u671f\u7684\u985e\u578b\u6216\u7bc4\u570d\uff0c\u5c31\u6703\u5f15\u767c\u932f\u8aa41231\u3002\u4ee5\u4e0b\u662f\u4e00\u4e9b\u5e38\u898b\u7684\u539f\u56e0\uff1a<\/p>\n<ul>\n<li><strong>\u985e\u578b\u4e0d\u5339\u914d\uff1a<\/strong>\u5982\u679c\u4f60\u5617\u8a66\u5c07\u4e00\u500b\u5b57\u7b26\u4e32\u503c\u8ce6\u7d66\u4e00\u500b\u6574\u6578\u8b8a\u91cf\uff0c\u5247\u6703\u51fa\u73fe\u6b64\u932f\u8aa4\u3002<\/li>\n<li><strong>\u7bc4\u570d\u8d85\u51fa\uff1a<\/strong>\u67d0\u4e9b\u8b8a\u91cf\u6709\u7279\u5b9a\u7684\u7bc4\u570d\u9650\u5236\uff0c\u4f8b\u5982\uff0c\u6574\u6578\u8b8a\u91cf\u7684\u503c\u5fc5\u9808\u5728-2147483648\u52302147483647\u4e4b\u9593\u3002\u5982\u679c\u8d85\u51fa\u9019\u500b\u7bc4\u570d\uff0c\u5247\u6703\u5f15\u767c\u932f\u8aa4\u3002<\/li>\n<li><strong>\u8b8a\u91cf\u672a\u5b9a\u7fa9\uff1a<\/strong>\u5982\u679c\u4f60\u5617\u8a66\u8a2d\u7f6e\u4e00\u500b\u672a\u5b9a\u7fa9\u7684\u8b8a\u91cf\uff0c\u4e5f\u6703\u5c0e\u81f4\u6b64\u932f\u8aa4\u3002<\/li>\n<\/ul>\n<h2 id=\"%e5%a6%82%e4%bd%95%e4%bf%ae%e5%be%a9%e9%8c%af%e8%aa%a41231-vMRXZwYkMC\">\u5982\u4f55\u4fee\u5fa9\u932f\u8aa41231<\/h2>\n<p>\u4fee\u5fa9MySQL\u932f\u8aa41231\u7684\u904e\u7a0b\u901a\u5e38\u6d89\u53ca\u4ee5\u4e0b\u5e7e\u500b\u6b65\u9a5f\uff1a<\/p>\n<h3 id=\"1-%e6%aa%a2%e6%9f%a5%e8%ae%8a%e9%87%8f%e9%a1%9e%e5%9e%8b-vMRXZwYkMC\">1. \u6aa2\u67e5\u8b8a\u91cf\u985e\u578b<\/h3>\n<p>\u9996\u5148\uff0c\u78ba\u4fdd\u4f60\u8981\u8a2d\u7f6e\u7684\u8b8a\u91cf\u985e\u578b\u8207\u4f60\u63d0\u4f9b\u7684\u503c\u76f8\u7b26\u3002\u4f60\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0bSQL\u8a9e\u53e5\u4f86\u6aa2\u67e5\u8b8a\u91cf\u7684\u985e\u578b\uff1a<\/p>\n<pre><code>SHOW VARIABLES LIKE 'your_variable_name';<\/code><\/pre>\n<p>\u6839\u64da\u67e5\u8a62\u7d50\u679c\uff0c\u78ba\u4fdd\u4f60\u63d0\u4f9b\u7684\u503c\u7b26\u5408\u8a72\u8b8a\u91cf\u7684\u985e\u578b\u3002\u4f8b\u5982\uff0c\u5982\u679c\u8b8a\u91cf\u662f\u6574\u6578\u985e\u578b\uff0c\u5247\u78ba\u4fdd\u4f60\u63d0\u4f9b\u7684\u503c\u662f\u6574\u6578\u3002<\/p>\n<h3 id=\"2-%e6%aa%a2%e6%9f%a5%e7%af%84%e5%9c%8d%e9%99%90%e5%88%b6-vMRXZwYkMC\">2. \u6aa2\u67e5\u7bc4\u570d\u9650\u5236<\/h3>\n<p>\u5982\u679c\u8b8a\u91cf\u6709\u7bc4\u570d\u9650\u5236\uff0c\u8acb\u78ba\u4fdd\u4f60\u63d0\u4f9b\u7684\u503c\u5728\u8a72\u7bc4\u570d\u5167\u3002\u4f60\u53ef\u4ee5\u53c3\u8003MySQL\u5b98\u65b9\u6587\u6a94\u4f86\u4e86\u89e3\u7279\u5b9a\u8b8a\u91cf\u7684\u7bc4\u570d\u9650\u5236\u3002\u4f8b\u5982\uff0c\u5c0d\u65bc\u6574\u6578\u8b8a\u91cf\uff0c\u8acb\u78ba\u4fdd\u503c\u5728-2147483648\u52302147483647\u4e4b\u9593\u3002<\/p>\n<h3 id=\"3-%e5%ae%9a%e7%be%a9%e8%ae%8a%e9%87%8f-vMRXZwYkMC\">3. \u5b9a\u7fa9\u8b8a\u91cf<\/h3>\n<p>\u5982\u679c\u4f60\u5617\u8a66\u8a2d\u7f6e\u4e00\u500b\u672a\u5b9a\u7fa9\u7684\u8b8a\u91cf\uff0c\u5247\u9700\u8981\u5148\u5b9a\u7fa9\u8a72\u8b8a\u91cf\u3002\u4f60\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u8a9e\u53e5\u4f86\u5b9a\u7fa9\u8b8a\u91cf\uff1a<\/p>\n<pre><code>SET @your_variable_name = your_value;<\/code><\/pre>\n<p>\u78ba\u4fdd\u5728\u8a2d\u7f6e\u8b8a\u91cf\u4e4b\u524d\uff0c\u8a72\u8b8a\u91cf\u5df2\u7d93\u88ab\u6b63\u78ba\u5b9a\u7fa9\u3002<\/p>\n<h3 id=\"4-%e4%bd%bf%e7%94%a8%e6%ad%a3%e7%a2%ba%e7%9a%84%e8%aa%9e%e6%b3%95-vMRXZwYkMC\">4. \u4f7f\u7528\u6b63\u78ba\u7684\u8a9e\u6cd5<\/h3>\n<p>\u78ba\u4fdd\u4f60\u4f7f\u7528\u7684SQL\u8a9e\u6cd5\u6b63\u78ba\u3002\u932f\u8aa4\u7684\u8a9e\u6cd5\u53ef\u80fd\u6703\u5c0e\u81f4MySQL\u7121\u6cd5\u6b63\u78ba\u89e3\u6790\u4f60\u7684\u8acb\u6c42\uff0c\u5f9e\u800c\u5f15\u767c\u932f\u8aa4\u3002\u6aa2\u67e5\u4f60\u7684SQL\u8a9e\u53e5\uff0c\u78ba\u4fdd\u6240\u6709\u7684\u95dc\u9375\u5b57\u548c\u8a9e\u6cd5\u90fd\u662f\u6b63\u78ba\u7684\u3002<\/p>\n<h2 id=\"%e7%a4%ba%e4%be%8b-vMRXZwYkMC\">\u793a\u4f8b<\/h2>\n<p>\u4ee5\u4e0b\u662f\u4e00\u500b\u793a\u4f8b\uff0c\u5c55\u793a\u5982\u4f55\u6b63\u78ba\u8a2d\u7f6e\u4e00\u500b\u8b8a\u91cf\uff1a<\/p>\n<pre><code>SET @max_connections = 200; -- \u6b63\u78ba\u8a2d\u7f6e\u6574\u6578\u8b8a\u91cf\nSET @max_connections = '200'; -- \u932f\u8aa4\uff0c\u56e0\u70ba\u9019\u662f\u4e00\u500b\u5b57\u7b26\u4e32\n<\/code><\/pre>\n<p>\u5728\u9019\u500b\u4f8b\u5b50\u4e2d\uff0c\u7b2c\u4e00\u884c\u662f\u6b63\u78ba\u7684\u8a2d\u7f6e\uff0c\u800c\u7b2c\u4e8c\u884c\u6703\u5f15\u767c\u932f\u8aa41231\uff0c\u56e0\u70ba\u5b83\u8a66\u5716\u5c07\u5b57\u7b26\u4e32\u8ce6\u503c\u7d66\u6574\u6578\u8b8a\u91cf\u3002<\/p>\n<h2 id=\"%e7%b8%bd%e7%b5%90-vMRXZwYkMC\">\u7e3d\u7d50<\/h2>\n<p>MySQL\u932f\u8aa41231\u901a\u5e38\u662f\u7531\u65bc\u8b8a\u91cf\u985e\u578b\u4e0d\u5339\u914d\u3001\u7bc4\u570d\u8d85\u51fa\u6216\u8b8a\u91cf\u672a\u5b9a\u7fa9\u7b49\u539f\u56e0\u5f15\u8d77\u7684\u3002\u901a\u904e\u6aa2\u67e5\u8b8a\u91cf\u7684\u985e\u578b\u548c\u7bc4\u570d\uff0c\u4e26\u78ba\u4fdd\u4f7f\u7528\u6b63\u78ba\u7684\u8a9e\u6cd5\uff0c\u53ef\u4ee5\u6709\u6548\u5730\u4fee\u5fa9\u6b64\u932f\u8aa4\u3002\u5c0d\u65bc\u9700\u8981\u7a69\u5b9a\u548c\u9ad8\u6548\u6578\u64da\u5eab\u7ba1\u7406\u7684\u7528\u6236\uff0c\u9078\u64c7\u5408\u9069\u7684 <a href=\"https:\/\/server.hk\">VPS<\/a> \u65b9\u6848\u662f\u81f3\u95dc\u91cd\u8981\u7684\uff0c\u9019\u6a23\u53ef\u4ee5\u78ba\u4fdd\u4f60\u7684\u6578\u64da\u5eab\u904b\u884c\u9806\u5229\uff0c\u4e26\u6e1b\u5c11\u51fa\u73fe\u932f\u8aa4\u7684\u6a5f\u6703\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u5b78\u7fd2\u5982\u4f55\u4fee\u5fa9MySQL\u932f\u8aa41231 (SQLSTATE: 42000)\uff0c\u89e3\u6c7a\u8b8a\u91cf&#8217;%s&#8217;\u7121\u6cd5\u8a2d\u7f6e\u70ba&#8217;%s&#8217;\u7684\u554f\u984c\uff0c\u78ba\u4fdd\u6578\u64da\u5eab\u6b63\u5e38\u904b\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-177899","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/177899","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=177899"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/177899\/revisions"}],"predecessor-version":[{"id":177900,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/177899\/revisions\/177900"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=177899"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=177899"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=177899"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}