{"id":60393,"date":"2024-10-13T02:29:17","date_gmt":"2024-10-12T18:29:17","guid":{"rendered":"https:\/\/server.hk\/cnblog\/60393\/"},"modified":"2024-10-13T02:29:17","modified_gmt":"2024-10-12T18:29:17","slug":"db2%e8%a1%a8%e6%a0%bc%e6%93%8d%e4%bd%9c%e6%8a%80%e5%b7%a7%e4%b9%8b%e5%b0%8e%e5%87%balob%e6%95%b8%e6%93%9a%ef%bc%8c%e5%be%88%e7%b0%a1%e5%96%ae%ef%bc%81","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/60393\/","title":{"rendered":"DB2\u8868\u683c\u64cd\u4f5c\u6280\u5de7\u4e4b\u5c0e\u51faLOB\u6578\u64da\uff0c\u5f88\u7c21\u55ae\uff01"},"content":{"rendered":"<h1 id=\"db2%e8%a1%a8%e6%a0%bc%e6%93%8d%e4%bd%9c%e6%8a%80%e5%b7%a7%e4%b9%8b%e5%b0%8e%e5%87%balob%e6%95%b8%e6%93%9a%ef%bc%8c%e5%be%88%e7%b0%a1%e5%96%ae%ef%bc%81-tiBmZoGnBv\">DB2\u8868\u683c\u64cd\u4f5c\u6280\u5de7\u4e4b\u5c0e\u51faLOB\u6578\u64da\uff0c\u5f88\u7c21\u55ae\uff01<\/h1>\n<p>\u5728\u6578\u64da\u5eab\u7ba1\u7406\u4e2d\uff0cLOB\uff08Large Object\uff09\u6578\u64da\u985e\u578b\u901a\u5e38\u7528\u65bc\u5b58\u5132\u5927\u91cf\u7684\u6578\u64da\uff0c\u5982\u5716\u7247\u3001\u97f3\u983b\u6216\u8996\u983b\u7b49\u3002\u5c0d\u65bc\u4f7f\u7528IBM DB2\u6578\u64da\u5eab\u7684\u958b\u767c\u8005\u4f86\u8aaa\uff0c\u5c0e\u51faLOB\u6578\u64da\u53ef\u80fd\u6703\u662f\u4e00\u500b\u6311\u6230\uff0c\u4f46\u5176\u5be6\u9019\u500b\u904e\u7a0b\u4e26\u4e0d\u8907\u96dc\u3002\u672c\u6587\u5c07\u4ecb\u7d39\u4e00\u4e9b\u7c21\u55ae\u7684\u6280\u5de7\uff0c\u5e6b\u52a9\u60a8\u8f15\u9b06\u5c0e\u51faDB2\u4e2d\u7684LOB\u6578\u64da\u3002<\/p>\n<h2 id=\"%e4%bb%80%e9%ba%bc%e6%98%aflob%e6%95%b8%e6%93%9a%ef%bc%9f-tiBmZoGnBv\">\u4ec0\u9ebc\u662fLOB\u6578\u64da\uff1f<\/h2>\n<p>LOB\u6578\u64da\u985e\u578b\u4e3b\u8981\u5206\u70ba\u4e09\u7a2e\uff1aBLOB\uff08Binary Large Object\uff09\u3001CLOB\uff08Character Large Object\uff09\u548cDBCLOB\uff08Double-Byte Character Large Object\uff09\u3002\u9019\u4e9b\u6578\u64da\u985e\u578b\u7684\u4e3b\u8981\u7279\u9ede\u662f\u80fd\u5920\u5b58\u5132\u5927\u91cf\u7684\u4e8c\u9032\u5236\u6216\u5b57\u7b26\u6578\u64da\uff0c\u9069\u5408\u7528\u65bc\u5b58\u5132\u5716\u7247\u3001\u6587\u6a94\u7b49\u5927\u6587\u4ef6\u3002<\/p>\n<h2 id=\"%e5%b0%8e%e5%87%balob%e6%95%b8%e6%93%9a%e7%9a%84%e5%9f%ba%e6%9c%ac%e6%ad%a5%e9%a9%9f-tiBmZoGnBv\">\u5c0e\u51faLOB\u6578\u64da\u7684\u57fa\u672c\u6b65\u9a5f<\/h2>\n<p>\u5c0e\u51faLOB\u6578\u64da\u7684\u904e\u7a0b\u53ef\u4ee5\u5206\u70ba\u4ee5\u4e0b\u5e7e\u500b\u6b65\u9a5f\uff1a<\/p>\n<ul>\n<li><strong id=\"%e6%ad%a5%e9%a9%9f%e4%b8%80%ef%bc%9a%e9%80%a3%e6%8e%a5%e5%88%b0db2%e6%95%b8%e6%93%9a%e5%ba%ab-tiBmZoGnBv\">\u6b65\u9a5f\u4e00\uff1a\u9023\u63a5\u5230DB2\u6578\u64da\u5eab<\/strong><\/li>\n<li><strong id=\"%e6%ad%a5%e9%a9%9f%e4%ba%8c%ef%bc%9a%e6%9f%a5%e8%a9%a2lob%e6%95%b8%e6%93%9a-tiBmZoGnBv\">\u6b65\u9a5f\u4e8c\uff1a\u67e5\u8a62LOB\u6578\u64da<\/strong><\/li>\n<li><strong id=\"%e6%ad%a5%e9%a9%9f%e4%b8%89%ef%bc%9a%e5%b0%8e%e5%87%ba%e6%95%b8%e6%93%9a-tiBmZoGnBv\">\u6b65\u9a5f\u4e09\uff1a\u5c0e\u51fa\u6578\u64da<\/strong><\/li>\n<\/ul>\n<h3 id=\"%e6%ad%a5%e9%a9%9f%e4%b8%80%ef%bc%9a%e9%80%a3%e6%8e%a5%e5%88%b0db2%e6%95%b8%e6%93%9a%e5%ba%ab-tiBmZoGnBv\">\u6b65\u9a5f\u4e00\uff1a\u9023\u63a5\u5230DB2\u6578\u64da\u5eab<\/h3>\n<p>\u9996\u5148\uff0c\u60a8\u9700\u8981\u4f7f\u7528DB2\u7684CLI\uff08Command Line Interface\uff09\u6216\u5176\u4ed6\u5de5\u5177\u9023\u63a5\u5230\u60a8\u7684\u6578\u64da\u5eab\u3002\u4ee5\u4e0b\u662f\u4e00\u500b\u4f7f\u7528CLI\u9023\u63a5\u7684\u793a\u4f8b\uff1a<\/p>\n<pre><code>db2 connect to your_database user your_username using your_password<\/code><\/pre>\n<h3 id=\"%e6%ad%a5%e9%a9%9f%e4%ba%8c%ef%bc%9a%e6%9f%a5%e8%a9%a2lob%e6%95%b8%e6%93%9a-tiBmZoGnBv\">\u6b65\u9a5f\u4e8c\uff1a\u67e5\u8a62LOB\u6578\u64da<\/h3>\n<p>\u4e00\u65e6\u6210\u529f\u9023\u63a5\uff0c\u60a8\u53ef\u4ee5\u4f7f\u7528SQL\u67e5\u8a62\u4f86\u6aa2\u7d22LOB\u6578\u64da\u3002\u4ee5\u4e0b\u662f\u4e00\u500b\u67e5\u8a62BLOB\u6578\u64da\u7684\u793a\u4f8b\uff1a<\/p>\n<pre><code>SELECT id, blob_column FROM your_table WHERE condition;<\/code><\/pre>\n<p>\u5728\u9019\u88e1\uff0c`blob_column`\u662f\u60a8\u8981\u5c0e\u51fa\u7684LOB\u5b57\u6bb5\uff0c`your_table`\u662f\u5305\u542b\u8a72\u5b57\u6bb5\u7684\u8868\u540d\u3002<\/p>\n<h3 id=\"%e6%ad%a5%e9%a9%9f%e4%b8%89%ef%bc%9a%e5%b0%8e%e5%87%ba%e6%95%b8%e6%93%9a-tiBmZoGnBv\">\u6b65\u9a5f\u4e09\uff1a\u5c0e\u51fa\u6578\u64da<\/h3>\n<p>\u5c0e\u51faLOB\u6578\u64da\u53ef\u4ee5\u4f7f\u7528DB2\u7684`EXPORT`\u547d\u4ee4\u3002\u4ee5\u4e0b\u662f\u4e00\u500b\u5c0e\u51faBLOB\u6578\u64da\u7684\u793a\u4f8b\uff1a<\/p>\n<pre><code>db2 \"EXPORT TO your_file_name OF DEL MODIFIED BY LOBFILE=lob_column SELECT id, blob_column FROM your_table WHERE condition\"<\/code><\/pre>\n<p>\u5728\u9019\u88e1\uff0c`your_file_name`\u662f\u60a8\u5e0c\u671b\u5c0e\u51fa\u7684\u6587\u4ef6\u540d\uff0c`lob_column`\u662f\u60a8\u8981\u5c0e\u51fa\u7684LOB\u5b57\u6bb5\u3002<\/p>\n<h2 id=\"%e6%b3%a8%e6%84%8f%e4%ba%8b%e9%a0%85-tiBmZoGnBv\">\u6ce8\u610f\u4e8b\u9805<\/h2>\n<p>\u5728\u5c0e\u51faLOB\u6578\u64da\u6642\uff0c\u6709\u5e7e\u500b\u6ce8\u610f\u4e8b\u9805\u9700\u8981\u8003\u616e\uff1a<\/p>\n<ul>\n<li>\u78ba\u4fdd\u60a8\u6709\u8db3\u5920\u7684\u6b0a\u9650\u4f86\u57f7\u884c\u5c0e\u51fa\u64cd\u4f5c\u3002<\/li>\n<li>\u6aa2\u67e5\u5c0e\u51fa\u6587\u4ef6\u7684\u5b58\u5132\u4f4d\u7f6e\uff0c\u78ba\u4fdd\u6709\u8db3\u5920\u7684\u7a7a\u9593\u4f86\u5b58\u5132\u5c0e\u51fa\u7684\u6578\u64da\u3002<\/li>\n<li>\u6839\u64da\u9700\u8981\u9078\u64c7\u5408\u9069\u7684\u5c0e\u51fa\u683c\u5f0f\uff0c\u4ee5\u4fbf\u5f8c\u7e8c\u7684\u6578\u64da\u8655\u7406\u3002<\/li>\n<\/ul>\n<h2 id=\"%e7%b5%90%e8%ab%96-tiBmZoGnBv\">\u7d50\u8ad6<\/h2>\n<p>\u5c0e\u51faDB2\u4e2d\u7684LOB\u6578\u64da\u5176\u5be6\u4e26\u4e0d\u56f0\u96e3\uff0c\u53ea\u9700\u9075\u5faa\u4e0a\u8ff0\u6b65\u9a5f\u5373\u53ef\u8f15\u9b06\u5b8c\u6210\u3002\u638c\u63e1\u9019\u4e9b\u6280\u5de7\u5f8c\uff0c\u60a8\u5c07\u80fd\u5920\u66f4\u6709\u6548\u5730\u7ba1\u7406\u548c\u8655\u7406\u5927\u578b\u6578\u64da\u5c0d\u8c61\uff0c\u63d0\u5347\u5de5\u4f5c\u6548\u7387\u3002<\/p>\n<p>\u5982\u679c\u60a8\u6b63\u5728\u5c0b\u627e\u7a69\u5b9a\u7684 <a href=\"https:\/\/server.hk\">\u9999\u6e2fVPS<\/a> \u89e3\u6c7a\u65b9\u6848\uff0cServer.HK \u63d0\u4f9b\u591a\u7a2e\u9078\u64c7\uff0c\u6eff\u8db3\u60a8\u7684\u9700\u6c42\u3002\u7121\u8ad6\u662f\u6578\u64da\u5eab\u7ba1\u7406\u9084\u662f\u5176\u4ed6\u61c9\u7528\uff0c\u9078\u64c7\u5408\u9069\u7684 <a href=\"https:\/\/server.hk\">\u4f3a\u670d\u5668<\/a> \u5c07\u6709\u52a9\u65bc\u63d0\u5347\u60a8\u7684\u696d\u52d9\u904b\u884c\u6548\u7387\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u638c\u63e1DB2\u8868\u683c\u64cd\u4f5c\u6280\u5de7\uff0c\u8f15\u9b06\u5c0e\u51faLOB\u6578\u64da\uff0c\u63d0\u5347\u6578\u64da\u7ba1\u7406\u6548\u7387\uff0c\u8b93\u6578\u64da\u8655\u7406\u8b8a\u5f97\u7c21\u55ae\u5feb\u6377\uff01<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[101],"tags":[],"class_list":["post-60393","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/60393","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"}],"author":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/comments?post=60393"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/60393\/revisions"}],"predecessor-version":[{"id":60394,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/60393\/revisions\/60394"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=60393"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=60393"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=60393"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}