{"id":95090,"date":"2024-10-19T22:09:17","date_gmt":"2024-10-19T14:09:17","guid":{"rendered":"https:\/\/server.hk\/cnblog\/95090\/"},"modified":"2024-10-19T22:09:17","modified_gmt":"2024-10-19T14:09:17","slug":"oracle%e5%b0%8d%e7%b3%bb%e7%b5%b1%e6%96%87%e4%bb%b6%e7%9a%84%e8%ae%80%e5%af%ab","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/95090\/","title":{"rendered":"Oracle\u5c0d\u7cfb\u7d71\u6587\u4ef6\u7684\u8b80\u5beb"},"content":{"rendered":"<h1 id=\"oracle%e5%b0%8d%e7%b3%bb%e7%b5%b1%e6%96%87%e4%bb%b6%e7%9a%84%e8%ae%80%e5%af%ab-dqSXYmAILD\">Oracle\u5c0d\u7cfb\u7d71\u6587\u4ef6\u7684\u8b80\u5beb<\/h1>\n<p>\u5728\u73fe\u4ee3\u4f01\u696d\u4e2d\uff0c\u6578\u64da\u7684\u7ba1\u7406\u548c\u5b58\u5132\u662f\u81f3\u95dc\u91cd\u8981\u7684\u3002Oracle\u4f5c\u70ba\u4e00\u500b\u5f37\u5927\u7684\u6578\u64da\u5eab\u7ba1\u7406\u7cfb\u7d71\uff0c\u63d0\u4f9b\u4e86\u591a\u7a2e\u529f\u80fd\u4f86\u652f\u6301\u7cfb\u7d71\u6587\u4ef6\u7684\u8b80\u5beb\u64cd\u4f5c\u3002\u672c\u6587\u5c07\u6df1\u5165\u63a2\u8a0eOracle\u5982\u4f55\u8655\u7406\u7cfb\u7d71\u6587\u4ef6\u7684\u8b80\u5beb\uff0c\u4e26\u63d0\u4f9b\u4e00\u4e9b\u5be6\u7528\u7684\u793a\u4f8b\u548c\u4ee3\u78bc\u7247\u6bb5\u3002<\/p>\n<h2 id=\"oracle%e7%9a%84%e6%96%87%e4%bb%b6%e8%ae%80%e5%af%ab%e6%a6%82%e8%bf%b0-dqSXYmAILD\">Oracle\u7684\u6587\u4ef6\u8b80\u5beb\u6982\u8ff0<\/h2>\n<p>Oracle\u6578\u64da\u5eab\u652f\u6301\u591a\u7a2e\u6587\u4ef6\u64cd\u4f5c\uff0c\u5305\u62ec\u8b80\u53d6\u548c\u5beb\u5165\u7cfb\u7d71\u6587\u4ef6\u3002\u9019\u4e9b\u64cd\u4f5c\u901a\u5e38\u6d89\u53ca\u5230\u5916\u90e8\u8868\u3001BFILE\u548cLOB\uff08\u5927\u5c0d\u8c61\uff09\u7b49\u6578\u64da\u985e\u578b\u3002\u9019\u4e9b\u529f\u80fd\u4f7f\u5f97\u7528\u6236\u80fd\u5920\u9748\u6d3b\u5730\u7ba1\u7406\u548c\u64cd\u4f5c\u5b58\u5132\u5728\u6587\u4ef6\u7cfb\u7d71\u4e2d\u7684\u6578\u64da\u3002<\/p>\n<h2 id=\"%e5%a4%96%e9%83%a8%e8%a1%a8%e7%9a%84%e4%bd%bf%e7%94%a8-dqSXYmAILD\">\u5916\u90e8\u8868\u7684\u4f7f\u7528<\/h2>\n<p>\u5916\u90e8\u8868\u662f\u4e00\u7a2e\u7279\u6b8a\u7684\u8868\u985e\u578b\uff0c\u5141\u8a31\u7528\u6236\u76f4\u63a5\u67e5\u8a62\u5b58\u5132\u5728\u6587\u4ef6\u7cfb\u7d71\u4e2d\u7684\u6578\u64da\u3002\u9019\u5c0d\u65bc\u9700\u8981\u5f9e\u5916\u90e8\u6587\u4ef6\u4e2d\u8b80\u53d6\u6578\u64da\u7684\u60c5\u6cc1\u975e\u5e38\u6709\u7528\u3002\u4ee5\u4e0b\u662f\u5275\u5efa\u5916\u90e8\u8868\u7684\u57fa\u672c\u8a9e\u6cd5\uff1a<\/p>\n<pre><code>CREATE TABLE external_table_name (\n    column1 datatype,\n    column2 datatype,\n    ...\n)\n ORGANIZATION EXTERNAL (\n    TYPE ORACLE_LOADER\n    DEFAULT DIRECTORY directory_name\n    ACCESS PARAMETERS (\n        RECORDS DELIMITED BY NEWLINE\n        FIELDS TERMINATED BY ','\n    )\n    LOCATION ('file_name.csv')\n);\n<\/code><\/pre>\n<p>\u5728\u9019\u500b\u793a\u4f8b\u4e2d\uff0c\u6211\u5011\u5275\u5efa\u4e86\u4e00\u500b\u540d\u70ba`external_table_name`\u7684\u5916\u90e8\u8868\uff0c\u4e26\u6307\u5b9a\u4e86\u6578\u64da\u7684\u5b58\u5132\u4f4d\u7f6e\u548c\u683c\u5f0f\u3002\u7528\u6236\u53ef\u4ee5\u901a\u904e\u67e5\u8a62\u9019\u500b\u5916\u90e8\u8868\u4f86\u76f4\u63a5\u8a2a\u554f\u6587\u4ef6\u4e2d\u7684\u6578\u64da\u3002<\/p>\n<h2 id=\"bfile%e7%9a%84%e4%bd%bf%e7%94%a8-dqSXYmAILD\">BFILE\u7684\u4f7f\u7528<\/h2>\n<p>BFILE\u662f\u4e00\u7a2e\u7279\u6b8a\u7684\u6578\u64da\u985e\u578b\uff0c\u7528\u65bc\u5b58\u5132\u6307\u5411\u5916\u90e8\u6587\u4ef6\u7684\u5f15\u7528\u3002\u9019\u4f7f\u5f97\u7528\u6236\u53ef\u4ee5\u5728Oracle\u6578\u64da\u5eab\u4e2d\u5b58\u5132\u6587\u4ef6\u7684\u8def\u5f91\uff0c\u800c\u4e0d\u5fc5\u5c07\u6587\u4ef6\u5be6\u969b\u4e0a\u50b3\u5230\u6578\u64da\u5eab\u4e2d\u3002\u4ee5\u4e0b\u662f\u5982\u4f55\u4f7f\u7528BFILE\u7684\u793a\u4f8b\uff1a<\/p>\n<pre><code>CREATE TABLE bfile_table (\n    id NUMBER,\n    file_data BFILE\n);\n\nINSERT INTO bfile_table (id, file_data)\nVALUES (1, BFILENAME('directory_name', 'file_name.txt'));\n<\/code><\/pre>\n<p>\u5728\u9019\u500b\u793a\u4f8b\u4e2d\uff0c\u6211\u5011\u5275\u5efa\u4e86\u4e00\u500b\u5305\u542bBFILE\u985e\u578b\u7684\u8868\uff0c\u4e26\u63d2\u5165\u4e86\u4e00\u500b\u6307\u5411\u5916\u90e8\u6587\u672c\u6587\u4ef6\u7684\u5f15\u7528\u3002\u7528\u6236\u53ef\u4ee5\u4f7f\u7528`DBMS_LOB`\u5305\u4f86\u8b80\u53d6BFILE\u4e2d\u7684\u6578\u64da\u3002<\/p>\n<h2 id=\"lob%e7%9a%84%e4%bd%bf%e7%94%a8-dqSXYmAILD\">LOB\u7684\u4f7f\u7528<\/h2>\n<p>LOB\uff08\u5927\u5c0d\u8c61\uff09\u985e\u578b\u5141\u8a31\u7528\u6236\u5b58\u5132\u5927\u91cf\u7684\u6578\u64da\uff0c\u5982\u5716\u7247\u3001\u97f3\u983b\u6216\u8996\u983b\u6587\u4ef6\u3002Oracle\u63d0\u4f9b\u4e86\u591a\u7a2e\u65b9\u6cd5\u4f86\u8b80\u53d6\u548c\u5beb\u5165LOB\u6578\u64da\u3002\u4ee5\u4e0b\u662f\u5982\u4f55\u5275\u5efa\u4e00\u500b\u5305\u542bLOB\u7684\u8868\u7684\u793a\u4f8b\uff1a<\/p>\n<pre><code>CREATE TABLE lob_table (\n    id NUMBER,\n    large_data BLOB\n);\n<\/code><\/pre>\n<p>\u7528\u6236\u53ef\u4ee5\u4f7f\u7528`DBMS_LOB`\u5305\u4f86\u64cd\u4f5cLOB\u6578\u64da\uff0c\u4f8b\u5982\u8b80\u53d6\u3001\u5beb\u5165\u6216\u66f4\u65b0LOB\u5167\u5bb9\u3002\u4ee5\u4e0b\u662f\u5beb\u5165LOB\u7684\u793a\u4f8b\uff1a<\/p>\n<pre><code>DECLARE\n    lob_loc BLOB;\nBEGIN\n    INSERT INTO lob_table (id, large_data) VALUES (1, EMPTY_BLOB())\n    RETURNING large_data INTO lob_loc;\n\n    DBMS_LOB.WRITEAPPEND(lob_loc, LENGTH('Your data here'), UTL_RAW.CAST_TO_RAW('Your data here'));\nEND;\n<\/code><\/pre>\n<h2 id=\"%e7%b8%bd%e7%b5%90-dqSXYmAILD\">\u7e3d\u7d50<\/h2>\n<p>Oracle\u63d0\u4f9b\u4e86\u591a\u7a2e\u65b9\u6cd5\u4f86\u8655\u7406\u7cfb\u7d71\u6587\u4ef6\u7684\u8b80\u5beb\uff0c\u5305\u62ec\u5916\u90e8\u8868\u3001BFILE\u548cLOB\u7b49\u6578\u64da\u985e\u578b\u3002\u9019\u4e9b\u529f\u80fd\u4f7f\u5f97\u7528\u6236\u80fd\u5920\u9748\u6d3b\u5730\u7ba1\u7406\u548c\u64cd\u4f5c\u5b58\u5132\u5728\u6587\u4ef6\u7cfb\u7d71\u4e2d\u7684\u6578\u64da\u3002\u7121\u8ad6\u662f\u5f9e\u5916\u90e8\u6587\u4ef6\u4e2d\u8b80\u53d6\u6578\u64da\uff0c\u9084\u662f\u5c07\u6578\u64da\u5beb\u5165\u6587\u4ef6\uff0cOracle\u90fd\u80fd\u63d0\u4f9b\u5f37\u5927\u7684\u652f\u6301\u3002<\/p>\n<p>\u5982\u679c\u60a8\u5c0d\u65bc\u5982\u4f55\u5728\u9999\u6e2f\u4f7f\u7528<a href=\"https:\/\/server.hk\">VPS<\/a>\u4f86\u904b\u884cOracle\u6578\u64da\u5eab\u6709\u8208\u8da3\uff0c\u6216\u60f3\u4e86\u89e3\u66f4\u591a\u95dc\u65bc<a href=\"https:\/\/server.hk\">\u9999\u6e2f\u4f3a\u670d\u5668<\/a>\u7684\u8cc7\u8a0a\uff0c\u8acb\u8a2a\u554f\u6211\u5011\u7684\u7db2\u7ad9\u4ee5\u7372\u53d6\u66f4\u591a\u8a73\u7d30\u8cc7\u6599\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u4e86\u89e3Oracle\u5c0d\u7cfb\u7d71\u6587\u4ef6\u7684\u8b80\u5beb\u64cd\u4f5c\uff0c\u638c\u63e1\u6578\u64da\u7ba1\u7406\u8207\u6027\u80fd\u512a\u5316\u7684\u95dc\u9375\u6280\u8853\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-95090","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/95090","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=95090"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/95090\/revisions"}],"predecessor-version":[{"id":95091,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/95090\/revisions\/95091"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=95090"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=95090"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=95090"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}