{"id":177283,"date":"2024-11-08T14:22:24","date_gmt":"2024-11-08T06:22:24","guid":{"rendered":"https:\/\/server.hk\/cnblog\/177283\/"},"modified":"2024-11-08T14:22:24","modified_gmt":"2024-11-08T06:22:24","slug":"%e5%a6%82%e4%bd%95%e4%bf%ae%e5%be%a9mysql%e9%8c%af%e8%aa%a41101-sql%e7%8b%80%e6%85%8b%ef%bc%9a42000%ef%bc%88er_blob_cant_have_default%ef%bc%89blob-text%e5%88%97%ef%bc%85s%e4%b8%8d","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/177283\/","title":{"rendered":"\u5982\u4f55\u4fee\u5fa9MySQL\u932f\u8aa41101 &#8211; SQL\u72c0\u614b\uff1a42000\uff08ER_BLOB_CANT_HAVE_DEFAULT\uff09BLOB\/TEXT\u5217\u201c\uff05s\u201d\u4e0d\u80fd\u5177\u6709\u9ed8\u8a8d\u503c"},"content":{"rendered":"<h1 id=\"%e5%a6%82%e4%bd%95%e4%bf%ae%e5%be%a9mysql%e9%8c%af%e8%aa%a41101-sql%e7%8b%80%e6%85%8b%ef%bc%9a42000%ef%bc%88er_blob_cant_have_default%ef%bc%89-sOoNUUqwNS\">\u5982\u4f55\u4fee\u5fa9MySQL\u932f\u8aa41101 &#8211; SQL\u72c0\u614b\uff1a42000\uff08ER_BLOB_CANT_HAVE_DEFAULT\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\u662f\u932f\u8aa41101\uff0c\u8a72\u932f\u8aa4\u7684SQL\u72c0\u614b\u70ba42000\uff0c\u4e26\u986f\u793a\u4fe1\u606f\u201cBLOB\/TEXT\u5217\u2018%s\u2019\u4e0d\u80fd\u5177\u6709\u9ed8\u8a8d\u503c\u201d\u3002\u9019\u500b\u932f\u8aa4\u901a\u5e38\u51fa\u73fe\u5728\u5617\u8a66\u70baBLOB\u6216TEXT\u985e\u578b\u7684\u5217\u8a2d\u7f6e\u9ed8\u8a8d\u503c\u6642\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-sOoNUUqwNS\">\u932f\u8aa4\u539f\u56e0\u5206\u6790<\/h2>\n<p>MySQL\u4e2d\u7684BLOB\uff08Binary Large Object\uff09\u548cTEXT\u985e\u578b\u662f\u7528\u4f86\u5b58\u5132\u5927\u91cf\u6578\u64da\u7684\uff0c\u9019\u4e9b\u6578\u64da\u53ef\u4ee5\u662f\u4e8c\u9032\u5236\u6578\u64da\u6216\u6587\u672c\u6578\u64da\u3002\u6839\u64daMySQL\u7684\u8a2d\u8a08\uff0c\u9019\u4e9b\u985e\u578b\u7684\u5217\u4e0d\u5141\u8a31\u8a2d\u7f6e\u9ed8\u8a8d\u503c\u3002\u9019\u662f\u56e0\u70baBLOB\u548cTEXT\u985e\u578b\u7684\u6578\u64da\u5927\u5c0f\u4e0d\u56fa\u5b9a\uff0c\u4e14\u5176\u5167\u5bb9\u53ef\u80fd\u975e\u5e38\u9f90\u5927\uff0c\u8a2d\u7f6e\u9ed8\u8a8d\u503c\u6703\u5c0e\u81f4\u6578\u64da\u5eab\u7684\u6027\u80fd\u554f\u984c\u548c\u6578\u64da\u4e00\u81f4\u6027\u554f\u984c\u3002<\/p>\n<p>\u7576\u4f60\u5728\u5275\u5efa\u6216\u4fee\u6539\u8868\u6642\uff0c\u5982\u679c\u5617\u8a66\u70ba\u9019\u4e9b\u5217\u8a2d\u7f6e\u9ed8\u8a8d\u503c\uff0c\u5c31\u6703\u51fa\u73fe\u932f\u8aa41101\u3002\u4ee5\u4e0b\u662f\u4e00\u500b\u793a\u4f8b\uff0c\u5c55\u793a\u4e86\u5982\u4f55\u5f15\u767c\u6b64\u932f\u8aa4\uff1a<\/p>\n<pre><code>CREATE TABLE example (\n    id INT PRIMARY KEY,\n    data BLOB DEFAULT 'default_value'\n);\n<\/code><\/pre>\n<p>\u5728\u4e0a\u8ff0\u4ee3\u78bc\u4e2d\uff0c\u56e0\u70ba\u5617\u8a66\u70baBLOB\u985e\u578b\u7684\u5217\u8a2d\u7f6e\u9ed8\u8a8d\u503c\uff0c\u6240\u4ee5\u6703\u5f15\u767c\u932f\u8aa41101\u3002<\/p>\n<h2 id=\"%e8%a7%a3%e6%b1%ba%e6%96%b9%e6%a1%88-sOoNUUqwNS\">\u89e3\u6c7a\u65b9\u6848<\/h2>\n<p>\u8981\u4fee\u5fa9\u9019\u500b\u932f\u8aa4\uff0c\u6700\u7c21\u55ae\u7684\u65b9\u6cd5\u662f\u79fb\u9664\u5c0dBLOB\u6216TEXT\u5217\u7684\u9ed8\u8a8d\u503c\u8a2d\u7f6e\u3002\u4ee5\u4e0b\u662f\u4fee\u6b63\u5f8c\u7684\u793a\u4f8b\uff1a<\/p>\n<pre><code>CREATE TABLE example (\n    id INT PRIMARY KEY,\n    data BLOB\n);\n<\/code><\/pre>\n<p>\u5728\u9019\u500b\u4fee\u6b63\u5f8c\u7684\u4ee3\u78bc\u4e2d\uff0c\u6211\u5011\u522a\u9664\u4e86\u5c0ddata\u5217\u7684\u9ed8\u8a8d\u503c\u8a2d\u7f6e\uff0c\u9019\u6a23\u5c31\u4e0d\u6703\u518d\u5f15\u767c\u932f\u8aa41101\u3002<\/p>\n<h3 id=\"%e4%bf%ae%e6%94%b9%e7%8f%be%e6%9c%89%e8%a1%a8%e7%b5%90%e6%a7%8b-sOoNUUqwNS\">\u4fee\u6539\u73fe\u6709\u8868\u7d50\u69cb<\/h3>\n<p>\u5982\u679c\u4f60\u5df2\u7d93\u6709\u4e00\u500b\u8868\u4e26\u4e14\u9700\u8981\u4fee\u6539\u5b83\u4ee5\u79fb\u9664\u9ed8\u8a8d\u503c\uff0c\u53ef\u4ee5\u4f7f\u7528ALTER TABLE\u8a9e\u53e5\u3002\u4ee5\u4e0b\u662f\u5982\u4f55\u9032\u884c\u4fee\u6539\u7684\u793a\u4f8b\uff1a<\/p>\n<pre><code>ALTER TABLE example\nMODIFY data BLOB;\n<\/code><\/pre>\n<p>\u9019\u689d\u8a9e\u53e5\u5c07data\u5217\u7684\u9ed8\u8a8d\u503c\u79fb\u9664\uff0c\u5f9e\u800c\u89e3\u6c7a\u932f\u8aa41101\u3002<\/p>\n<h2 id=\"%e6%9c%80%e4%bd%b3%e5%af%a6%e8%b8%90-sOoNUUqwNS\">\u6700\u4f73\u5be6\u8e10<\/h2>\n<p>\u5728\u8a2d\u8a08\u6578\u64da\u5eab\u6642\uff0c\u61c9\u8a72\u9075\u5faa\u4e00\u4e9b\u6700\u4f73\u5be6\u8e10\uff0c\u4ee5\u907f\u514d\u985e\u4f3c\u7684\u932f\u8aa4\uff1a<\/p>\n<ul>\n<li>\u907f\u514d\u70baBLOB\u548cTEXT\u985e\u578b\u7684\u5217\u8a2d\u7f6e\u9ed8\u8a8d\u503c\u3002<\/li>\n<li>\u5728\u63d2\u5165\u6578\u64da\u6642\uff0c\u78ba\u4fdd\u63d0\u4f9b\u5fc5\u8981\u7684\u6578\u64da\uff0c\u800c\u4e0d\u662f\u4f9d\u8cf4\u9ed8\u8a8d\u503c\u3002<\/li>\n<li>\u5b9a\u671f\u6aa2\u67e5\u6578\u64da\u5eab\u7d50\u69cb\uff0c\u78ba\u4fdd\u5176\u7b26\u5408\u6700\u4f73\u5be6\u8e10\u3002<\/li>\n<\/ul>\n<h2 id=\"%e7%b8%bd%e7%b5%90-sOoNUUqwNS\">\u7e3d\u7d50<\/h2>\n<p>MySQL\u932f\u8aa41101\uff08ER_BLOB_CANT_HAVE_DEFAULT\uff09\u662f\u7531\u65bc\u5617\u8a66\u70baBLOB\u6216TEXT\u985e\u578b\u7684\u5217\u8a2d\u7f6e\u9ed8\u8a8d\u503c\u800c\u5f15\u767c\u7684\u3002\u901a\u904e\u79fb\u9664\u9019\u4e9b\u5217\u7684\u9ed8\u8a8d\u503c\u8a2d\u7f6e\uff0c\u53ef\u4ee5\u8f15\u9b06\u89e3\u6c7a\u6b64\u554f\u984c\u3002\u5728\u8a2d\u8a08\u6578\u64da\u5eab\u6642\uff0c\u9075\u5faa\u6700\u4f73\u5be6\u8e10\u5c07\u6709\u52a9\u65bc\u907f\u514d\u6b64\u985e\u932f\u8aa4\u7684\u767c\u751f\u3002\u5982\u679c\u60a8\u9700\u8981\u7a69\u5b9a\u7684\u6578\u64da\u5eab\u89e3\u6c7a\u65b9\u6848\uff0c\u8003\u616e\u4f7f\u7528<a href=\"https:\/\/server.hk\">\u9999\u6e2fVPS<\/a>\u6216<a href=\"https:\/\/server.hk\">\u9999\u6e2f\u4f3a\u670d\u5668<\/a>\u4f86\u652f\u6301\u60a8\u7684\u61c9\u7528\u7a0b\u5e8f\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u4fee\u5fa9MySQL\u932f\u8aa41101\uff0c\u4e86\u89e3SQL\u72c0\u614b42000\uff08ER_BLOB_CANT_HAVE_DEFAULT\uff09\u53caBLOB\/TEXT\u5217\u4e0d\u80fd\u8a2d\u7f6e\u9ed8\u8a8d\u503c\u7684\u89e3\u6c7a\u65b9\u6848\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-177283","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/177283","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=177283"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/177283\/revisions"}],"predecessor-version":[{"id":177284,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/177283\/revisions\/177284"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=177283"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=177283"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=177283"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}