{"id":79124,"date":"2024-10-16T12:44:17","date_gmt":"2024-10-16T04:44:17","guid":{"rendered":"https:\/\/server.hk\/cnblog\/79124\/"},"modified":"2024-10-16T12:44:17","modified_gmt":"2024-10-16T04:44:17","slug":"mysql%e6%8c%87%e4%bb%a4-mediumblob%ef%bc%88%e4%b8%ad%e5%9e%8b%e4%ba%8c%e9%80%b2%e5%88%b6%ef%bc%89","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/79124\/","title":{"rendered":"MySQL\u6307\u4ee4: MEDIUMBLOB\uff08\u4e2d\u578b\u4e8c\u9032\u5236\uff09"},"content":{"rendered":"<h1 id=\"mysql%e6%8c%87%e4%bb%a4-mediumblob%ef%bc%88%e4%b8%ad%e5%9e%8b%e4%ba%8c%e9%80%b2%e5%88%b6%ef%bc%89-KFVuiwqGgb\">MySQL\u6307\u4ee4: MEDIUMBLOB\uff08\u4e2d\u578b\u4e8c\u9032\u5236\uff09<\/h1>\n<p>\u5728\u8cc7\u6599\u5eab\u7ba1\u7406\u7cfb\u7d71\u4e2d\uff0cMySQL\u662f\u4e00\u500b\u5ee3\u6cdb\u4f7f\u7528\u7684\u958b\u6e90\u8cc7\u6599\u5eab\uff0c\u7279\u5225\u9069\u5408\u7528\u65bc\u7db2\u9801\u61c9\u7528\u7a0b\u5f0f\u3002MySQL\u63d0\u4f9b\u4e86\u591a\u7a2e\u6578\u64da\u985e\u578b\u4ee5\u6eff\u8db3\u4e0d\u540c\u7684\u9700\u6c42\uff0c\u5176\u4e2d\u4e4b\u4e00\u5c31\u662fMEDIUMBLOB\u3002\u672c\u6587\u5c07\u6df1\u5165\u63a2\u8a0eMEDIUMBLOB\u7684\u7279\u6027\u3001\u4f7f\u7528\u60c5\u5883\u53ca\u5176\u5728\u5be6\u969b\u61c9\u7528\u4e2d\u7684\u793a\u4f8b\u3002<\/p>\n<h2 id=\"%e4%bb%80%e9%ba%bc%e6%98%afmediumblob%ef%bc%9f-KFVuiwqGgb\">\u4ec0\u9ebc\u662fMEDIUMBLOB\uff1f<\/h2>\n<p>MEDIUMBLOB\u662f\u4e00\u7a2e\u7528\u65bc\u5b58\u5132\u4e8c\u9032\u5236\u6578\u64da\u7684\u6578\u64da\u985e\u578b\uff0c\u7279\u5225\u9069\u5408\u5b58\u5132\u8f03\u5927\u7684\u4e8c\u9032\u5236\u5c0d\u8c61\uff08BLOB\uff09\u3002\u6839\u64daMySQL\u7684\u5b9a\u7fa9\uff0cMEDIUMBLOB\u53ef\u4ee5\u5b58\u5132\u6700\u591a16,777,215\u5b57\u7bc0\uff08\u7d0416MB\uff09\u7684\u6578\u64da\u3002\u9019\u4f7f\u5f97\u5b83\u6210\u70ba\u5b58\u5132\u5716\u7247\u3001\u97f3\u983b\u3001\u8996\u983b\u7b49\u5927\u578b\u6587\u4ef6\u7684\u7406\u60f3\u9078\u64c7\u3002<\/p>\n<h2 id=\"mediumblob%e7%9a%84%e7%89%b9%e6%80%a7-KFVuiwqGgb\">MEDIUMBLOB\u7684\u7279\u6027<\/h2>\n<ul>\n<li><strong>\u5927\u5c0f\u9650\u5236\uff1a<\/strong>MEDIUMBLOB\u7684\u6700\u5927\u5b58\u5132\u5bb9\u91cf\u70ba16MB\uff0c\u9019\u6bd4\u8d77\u5176\u4ed6BLOB\u985e\u578b\uff08\u5982TINYBLOB\u548cBLOB\uff09\u8981\u5927\u3002<\/li>\n<li><strong>\u4e8c\u9032\u5236\u6578\u64da\uff1a<\/strong>MEDIUMBLOB\u5c08\u9580\u7528\u65bc\u5b58\u5132\u4e8c\u9032\u5236\u6578\u64da\uff0c\u9019\u610f\u5473\u8457\u5b83\u4e0d\u6703\u5c0d\u6578\u64da\u9032\u884c\u4efb\u4f55\u7de8\u78bc\u6216\u8f49\u63db\u3002<\/li>\n<li><strong>\u9748\u6d3b\u6027\uff1a<\/strong>\u7531\u65bc\u5176\u8f03\u5927\u7684\u5b58\u5132\u5bb9\u91cf\uff0cMEDIUMBLOB\u53ef\u4ee5\u7528\u65bc\u591a\u7a2e\u61c9\u7528\u5834\u666f\uff0c\u5982\u5b58\u5132\u7528\u6236\u4e0a\u50b3\u7684\u6587\u4ef6\u6216\u5a92\u9ad4\u5167\u5bb9\u3002<\/li>\n<\/ul>\n<h2 id=\"%e5%a6%82%e4%bd%95%e4%bd%bf%e7%94%a8mediumblob-KFVuiwqGgb\">\u5982\u4f55\u4f7f\u7528MEDIUMBLOB<\/h2>\n<p>\u5728MySQL\u4e2d\u5275\u5efa\u4e00\u500b\u5305\u542bMEDIUMBLOB\u5b57\u6bb5\u7684\u8868\u683c\u975e\u5e38\u7c21\u55ae\u3002\u4ee5\u4e0b\u662f\u4e00\u500b\u793a\u4f8bSQL\u8a9e\u53e5\uff0c\u5c55\u793a\u5982\u4f55\u5275\u5efa\u4e00\u500b\u540d\u70ba\u201cmedia\u201d\u7684\u8868\u683c\uff0c\u5176\u4e2d\u5305\u542b\u4e00\u500bMEDIUMBLOB\u5b57\u6bb5\uff1a<\/p>\n<pre><code>\nCREATE TABLE media (\n    id INT AUTO_INCREMENT PRIMARY KEY,\n    name VARCHAR(255) NOT NULL,\n    data MEDIUMBLOB NOT NULL\n);\n<\/code><\/pre>\n<p>\u5728\u9019\u500b\u793a\u4f8b\u4e2d\uff0c\u8868\u683c\u201cmedia\u201d\u5305\u542b\u4e09\u500b\u5b57\u6bb5\uff1a\u4e00\u500b\u81ea\u589e\u7684\u6574\u6578ID\u3001\u4e00\u500b\u7528\u65bc\u5b58\u5132\u6587\u4ef6\u540d\u7a31\u7684\u5b57\u7b26\u4e32\uff0c\u4ee5\u53ca\u4e00\u500bMEDIUMBLOB\u5b57\u6bb5\u7528\u65bc\u5b58\u5132\u5be6\u969b\u7684\u4e8c\u9032\u5236\u6578\u64da\u3002<\/p>\n<h2 id=\"%e6%8f%92%e5%85%a5%e5%92%8c%e6%aa%a2%e7%b4%a2mediumblob%e6%95%b8%e6%93%9a-KFVuiwqGgb\">\u63d2\u5165\u548c\u6aa2\u7d22MEDIUMBLOB\u6578\u64da<\/h2>\n<p>\u63d2\u5165MEDIUMBLOB\u6578\u64da\u7684\u904e\u7a0b\u8207\u63d2\u5165\u5176\u4ed6\u985e\u578b\u7684\u6578\u64da\u76f8\u4f3c\u3002\u4ee5\u4e0b\u662f\u4e00\u500b\u63d2\u5165\u6578\u64da\u7684\u793a\u4f8b\uff1a<\/p>\n<pre><code>\nINSERT INTO media (name, data) VALUES ('example_image.jpg', LOAD_FILE('\/path\/to\/example_image.jpg'));\n<\/code><\/pre>\n<p>\u5728\u9019\u500b\u4f8b\u5b50\u4e2d\uff0cLOAD_FILE\u51fd\u6578\u7528\u65bc\u5f9e\u6307\u5b9a\u7684\u8def\u5f91\u52a0\u8f09\u6587\u4ef6\u4e26\u5c07\u5176\u5b58\u5132\u5230MEDIUMBLOB\u5b57\u6bb5\u4e2d\u3002<\/p>\n<p>\u8981\u6aa2\u7d22\u5b58\u5132\u5728MEDIUMBLOB\u4e2d\u7684\u6578\u64da\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0bSQL\u67e5\u8a62\uff1a<\/p>\n<pre><code>\nSELECT name, data FROM media WHERE id = 1;\n<\/code><\/pre>\n<p>\u9019\u5c07\u8fd4\u56deID\u70ba1\u7684\u8a18\u9304\uff0c\u5305\u62ec\u6587\u4ef6\u540d\u7a31\u548c\u4e8c\u9032\u5236\u6578\u64da\u3002<\/p>\n<h2 id=\"%e4%bd%bf%e7%94%a8mediumblob%e7%9a%84%e6%b3%a8%e6%84%8f%e4%ba%8b%e9%a0%85-KFVuiwqGgb\">\u4f7f\u7528MEDIUMBLOB\u7684\u6ce8\u610f\u4e8b\u9805<\/h2>\n<p>\u5118\u7ba1MEDIUMBLOB\u63d0\u4f9b\u4e86\u9748\u6d3b\u6027\u548c\u8f03\u5927\u7684\u5b58\u5132\u5bb9\u91cf\uff0c\u4f46\u5728\u4f7f\u7528\u6642\u4ecd\u9700\u6ce8\u610f\u4ee5\u4e0b\u5e7e\u9ede\uff1a<\/p>\n<ul>\n<li><strong>\u6027\u80fd\u5f71\u97ff\uff1a<\/strong>\u5b58\u5132\u548c\u6aa2\u7d22\u5927\u578b\u4e8c\u9032\u5236\u6578\u64da\u53ef\u80fd\u6703\u5f71\u97ff\u8cc7\u6599\u5eab\u7684\u6027\u80fd\uff0c\u7279\u5225\u662f\u5728\u9ad8\u6d41\u91cf\u7684\u61c9\u7528\u4e2d\u3002<\/li>\n<li><strong>\u5099\u4efd\u548c\u6062\u5fa9\uff1a<\/strong>\u7531\u65bcMEDIUMBLOB\u53ef\u4ee5\u5b58\u5132\u5927\u91cf\u6578\u64da\uff0c\u5099\u4efd\u548c\u6062\u5fa9\u904e\u7a0b\u53ef\u80fd\u6703\u8b8a\u5f97\u66f4\u52a0\u8907\u96dc\u3002<\/li>\n<li><strong>\u6578\u64da\u5b8c\u6574\u6027\uff1a<\/strong>\u78ba\u4fdd\u5728\u4e0a\u50b3\u548c\u4e0b\u8f09\u904e\u7a0b\u4e2d\u6578\u64da\u7684\u5b8c\u6574\u6027\uff0c\u907f\u514d\u6578\u64da\u640d\u58de\u6216\u4e1f\u5931\u3002<\/li>\n<\/ul>\n<h2 id=\"%e7%b8%bd%e7%b5%90-KFVuiwqGgb\">\u7e3d\u7d50<\/h2>\n<p>MEDIUMBLOB\u662f\u4e00\u500b\u5f37\u5927\u7684\u6578\u64da\u985e\u578b\uff0c\u9069\u5408\u7528\u65bc\u5b58\u5132\u5927\u578b\u4e8c\u9032\u5236\u6578\u64da\uff0c\u5982\u5716\u7247\u548c\u97f3\u983b\u6587\u4ef6\u3002\u901a\u904e\u6b63\u78ba\u7684\u4f7f\u7528\u548c\u7ba1\u7406\uff0c\u958b\u767c\u8005\u53ef\u4ee5\u5145\u5206\u5229\u7528\u5176\u7279\u6027\u4f86\u63d0\u5347\u61c9\u7528\u7684\u529f\u80fd\u6027\u548c\u9748\u6d3b\u6027\u3002\u5982\u679c\u60a8\u6b63\u5728\u5c0b\u627e\u7a69\u5b9a\u7684 <a href=\"https:\/\/server.hk\">\u9999\u6e2fVPS<\/a> \u89e3\u6c7a\u65b9\u6848\u4f86\u652f\u6301\u60a8\u7684MySQL\u6578\u64da\u5eab\uff0cServer.HK\u63d0\u4f9b\u591a\u7a2e\u9078\u64c7\u4ee5\u6eff\u8db3\u60a8\u7684\u9700\u6c42\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u4e86\u89e3MySQL\u4e2d\u7684MEDIUMBLOB\u6307\u4ee4\uff0c\u5982\u4f55\u5b58\u5132\u4e2d\u578b\u4e8c\u9032\u5236\u6578\u64da\uff0c\u53ca\u5176\u5728\u6578\u64da\u5eab\u4e2d\u7684\u61c9\u7528\u8207\u7279\u9ede\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-79124","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/79124","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=79124"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/79124\/revisions"}],"predecessor-version":[{"id":79125,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/79124\/revisions\/79125"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=79124"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=79124"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=79124"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}