{"id":177599,"date":"2024-11-08T15:29:19","date_gmt":"2024-11-08T07:29:19","guid":{"rendered":"https:\/\/server.hk\/cnblog\/177599\/"},"modified":"2024-11-08T15:29:20","modified_gmt":"2024-11-08T07:29:20","slug":"%e5%a6%82%e4%bd%95%e4%bf%ae%e5%be%a9mysql%e9%8c%af%e8%aa%a41170-sqlstate-42000%ef%bc%88er_blob_key_without_length%ef%bc%89%e5%9c%a8%e9%8d%b5%e8%a6%8f%e7%af%84%e4%b8%ad%e4%bd%bf%e7%94%a8%e4%ba%86blo","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/177599\/","title":{"rendered":"\u5982\u4f55\u4fee\u5fa9MySQL\u932f\u8aa41170 &#8211; SQLSTATE: 42000\uff08ER_BLOB_KEY_WITHOUT_LENGTH\uff09\u5728\u9375\u898f\u7bc4\u4e2d\u4f7f\u7528\u4e86BLOB\/TEXT\u5217&#8217;%s&#8217;\uff0c\u4f46\u6c92\u6709\u9375\u9577\u5ea6"},"content":{"rendered":"<h1 id=\"%e5%a6%82%e4%bd%95%e4%bf%ae%e5%be%a9mysql%e9%8c%af%e8%aa%a41170-sqlstate-42000%ef%bc%88er_blob_key_without_length%ef%bc%89-leZIYQCgbE\">\u5982\u4f55\u4fee\u5fa9MySQL\u932f\u8aa41170 &#8211; SQLSTATE: 42000\uff08ER_BLOB_KEY_WITHOUT_LENGTH\uff09<\/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\u8aa41170\uff0c\u8a72\u932f\u8aa4\u7684\u5b8c\u6574\u4fe1\u606f\u70ba\u201c\u5728\u9375\u898f\u7bc4\u4e2d\u4f7f\u7528\u4e86BLOB\/TEXT\u5217&#8217;%s&#8217;\uff0c\u4f46\u6c92\u6709\u9375\u9577\u5ea6\u201d\u3002\u9019\u500b\u932f\u8aa4\u901a\u5e38\u767c\u751f\u5728\u5617\u8a66\u70baBLOB\u6216TEXT\u985e\u578b\u7684\u5217\u5275\u5efa\u7d22\u5f15\u6642\uff0c\u56e0\u70ba\u9019\u4e9b\u985e\u578b\u7684\u5217\u9700\u8981\u6307\u5b9a\u9375\u9577\u5ea6\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%a41170%e7%9a%84%e5%8e%9f%e5%9b%a0-leZIYQCgbE\">\u932f\u8aa41170\u7684\u539f\u56e0<\/h2>\n<p>MySQL\u4e2d\u7684BLOB\u548cTEXT\u985e\u578b\u662f\u7528\u4f86\u5b58\u5132\u5927\u91cf\u6578\u64da\u7684\uff0c\u4f8b\u5982\u5716\u7247\u3001\u6587\u6a94\u6216\u5176\u4ed6\u4e8c\u9032\u5236\u6578\u64da\u3002\u9019\u4e9b\u985e\u578b\u7684\u5217\u5728\u5275\u5efa\u7d22\u5f15\u6642\u9700\u8981\u6307\u5b9a\u4e00\u500b\u9375\u9577\u5ea6\uff0c\u56e0\u70baMySQL\u9700\u8981\u77e5\u9053\u5728\u7d22\u5f15\u4e2d\u4f7f\u7528\u591a\u5c11\u5b57\u7bc0\u4f86\u9032\u884c\u6bd4\u8f03\u3002\u5982\u679c\u6c92\u6709\u6307\u5b9a\u9375\u9577\u5ea6\uff0cMySQL\u5c07\u7121\u6cd5\u5275\u5efa\u7d22\u5f15\uff0c\u5f9e\u800c\u5f15\u767c\u932f\u8aa41170\u3002<\/p>\n<h2 id=\"%e5%a6%82%e4%bd%95%e4%bf%ae%e5%be%a9%e9%8c%af%e8%aa%a41170-leZIYQCgbE\">\u5982\u4f55\u4fee\u5fa9\u932f\u8aa41170<\/h2>\n<p>\u8981\u4fee\u5fa9\u9019\u500b\u932f\u8aa4\uff0c\u60a8\u9700\u8981\u5728\u5275\u5efa\u7d22\u5f15\u6642\u70baBLOB\u6216TEXT\u5217\u6307\u5b9a\u4e00\u500b\u9375\u9577\u5ea6\u3002\u4ee5\u4e0b\u662f\u4e00\u4e9b\u5177\u9ad4\u7684\u6b65\u9a5f\u548c\u793a\u4f8b\uff1a<\/p>\n<h3 id=\"1-%e4%bf%ae%e6%94%b9%e8%a1%a8%e7%b5%90%e6%a7%8b-leZIYQCgbE\">1. \u4fee\u6539\u8868\u7d50\u69cb<\/h3>\n<p>\u5982\u679c\u60a8\u5df2\u7d93\u6709\u4e00\u500b\u8868\u4e26\u4e14\u60f3\u8981\u70baBLOB\u6216TEXT\u5217\u5275\u5efa\u7d22\u5f15\uff0c\u60a8\u53ef\u4ee5\u4f7f\u7528ALTER TABLE\u8a9e\u53e5\u4f86\u4fee\u6539\u8868\u7d50\u69cb\u3002\u4f8b\u5982\uff1a<\/p>\n<pre><code>ALTER TABLE your_table_name\nADD INDEX your_index_name (your_blob_column(255));<\/code><\/pre>\n<p>\u5728\u9019\u500b\u4f8b\u5b50\u4e2d\uff0c\u6211\u5011\u70ba\u540d\u70ba\u201cyour_blob_column\u201d\u7684BLOB\u5217\u5275\u5efa\u4e86\u4e00\u500b\u7d22\u5f15\uff0c\u4e26\u6307\u5b9a\u4e86\u9375\u9577\u5ea6\u70ba255\u5b57\u7bc0\u3002\u9019\u610f\u5473\u8457\u5728\u7d22\u5f15\u4e2d\u5c07\u4f7f\u7528\u524d255\u500b\u5b57\u7bc0\u4f86\u9032\u884c\u6bd4\u8f03\u3002<\/p>\n<h3 id=\"2-%e5%89%b5%e5%bb%ba%e6%96%b0%e8%a1%a8-leZIYQCgbE\">2. \u5275\u5efa\u65b0\u8868<\/h3>\n<p>\u5982\u679c\u60a8\u6b63\u5728\u5275\u5efa\u4e00\u500b\u65b0\u8868\uff0c\u60a8\u53ef\u4ee5\u5728CREATE TABLE\u8a9e\u53e5\u4e2d\u76f4\u63a5\u6307\u5b9a\u7d22\u5f15\u3002\u4f8b\u5982\uff1a<\/p>\n<pre><code>CREATE TABLE your_table_name (\n    id INT AUTO_INCREMENT PRIMARY KEY,\n    your_blob_column BLOB,\n    INDEX your_index_name (your_blob_column(255))\n);<\/code><\/pre>\n<p>\u9019\u6a23\uff0c\u7576\u8868\u88ab\u5275\u5efa\u6642\uff0c\u7d22\u5f15\u5c07\u81ea\u52d5\u5305\u542b\u5728\u5167\uff0c\u4e26\u4e14\u4e0d\u6703\u5f15\u767c\u932f\u8aa41170\u3002<\/p>\n<h3 id=\"3-%e4%bd%bf%e7%94%a8varchar%e6%9b%bf%e4%bb%a3-leZIYQCgbE\">3. \u4f7f\u7528VARCHAR\u66ff\u4ee3<\/h3>\n<p>\u5982\u679c\u60a8\u7684\u6578\u64da\u91cf\u4e0d\u5927\uff0c\u8003\u616e\u4f7f\u7528VARCHAR\u985e\u578b\u800c\u4e0d\u662fBLOB\u6216TEXT\u985e\u578b\u3002VARCHAR\u985e\u578b\u5728\u5275\u5efa\u7d22\u5f15\u6642\u4e0d\u9700\u8981\u6307\u5b9a\u9375\u9577\u5ea6\uff0c\u9019\u6a23\u53ef\u4ee5\u907f\u514d\u932f\u8aa41170\u3002\u4f8b\u5982\uff1a<\/p>\n<pre><code>CREATE TABLE your_table_name (\n    id INT AUTO_INCREMENT PRIMARY KEY,\n    your_varchar_column VARCHAR(255),\n    INDEX your_index_name (your_varchar_column)\n);<\/code><\/pre>\n<h2 id=\"%e7%b8%bd%e7%b5%90-leZIYQCgbE\">\u7e3d\u7d50<\/h2>\n<p>MySQL\u932f\u8aa41170\u901a\u5e38\u662f\u7531\u65bc\u5728\u9375\u898f\u7bc4\u4e2d\u4f7f\u7528\u4e86BLOB\u6216TEXT\u5217\u800c\u672a\u6307\u5b9a\u9375\u9577\u5ea6\u6240\u5f15\u8d77\u7684\u3002\u901a\u904e\u5728\u5275\u5efa\u7d22\u5f15\u6642\u70ba\u9019\u4e9b\u5217\u6307\u5b9a\u9069\u7576\u7684\u9375\u9577\u5ea6\uff0c\u6216\u8005\u8003\u616e\u4f7f\u7528VARCHAR\u985e\u578b\uff0c\u60a8\u53ef\u4ee5\u8f15\u9b06\u89e3\u6c7a\u9019\u500b\u554f\u984c\u3002\u4e86\u89e3\u5982\u4f55\u6b63\u78ba\u8655\u7406\u9019\u4e9b\u6578\u64da\u985e\u578b\u5c0d\u65bc\u78ba\u4fdd\u6578\u64da\u5eab\u7684\u6027\u80fd\u548c\u7a69\u5b9a\u6027\u81f3\u95dc\u91cd\u8981\u3002<\/p>\n<p>\u5982\u679c\u60a8\u6b63\u5728\u5c0b\u627e\u9ad8\u6548\u7684 <a href=\"https:\/\/server.hk\">\u9999\u6e2fVPS<\/a> \u89e3\u6c7a\u65b9\u6848\uff0cServer.HK\u63d0\u4f9b\u591a\u7a2e\u9078\u64c7\uff0c\u6eff\u8db3\u4e0d\u540c\u9700\u6c42\u7684\u5ba2\u6236\u3002\u7121\u8ad6\u662f\u6578\u64da\u5eab\u7ba1\u7406\u9084\u662f\u7db2\u7ad9\u6258\u7ba1\uff0c\u6211\u5011\u7684 <a href=\"https:\/\/server.hk\">\u9999\u6e2f\u4f3a\u670d\u5668<\/a> \u90fd\u80fd\u70ba\u60a8\u63d0\u4f9b\u7a69\u5b9a\u7684\u652f\u6301\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u4fee\u5fa9MySQL\u932f\u8aa41170\u7684\u65b9\u6cd5\uff1a\u5728\u9375\u898f\u7bc4\u4e2d\u70baBLOB\/TEXT\u5217\u6307\u5b9a\u9375\u9577\u5ea6\uff0c\u4ee5\u907f\u514dSQLSTATE: 42000\uff08ER_BLOB_KEY_WITHOUT_LENGTH\uff09\u932f\u8aa4\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-177599","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/177599","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=177599"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/177599\/revisions"}],"predecessor-version":[{"id":177600,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/177599\/revisions\/177600"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=177599"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=177599"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=177599"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}