{"id":95420,"date":"2024-10-20T00:54:19","date_gmt":"2024-10-19T16:54:19","guid":{"rendered":"https:\/\/server.hk\/cnblog\/95420\/"},"modified":"2024-10-20T00:54:20","modified_gmt":"2024-10-19T16:54:20","slug":"oracle%e6%95%b8%e6%93%9a%e7%8d%b2%e5%8f%96%e7%9a%84%e5%af%a6%e9%9a%9b%e6%96%b9%e5%bc%8f%e6%bc%94%e7%a4%ba","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/95420\/","title":{"rendered":"Oracle\u6578\u64da\u7372\u53d6\u7684\u5be6\u969b\u65b9\u5f0f\u6f14\u793a"},"content":{"rendered":"

Oracle\u6578\u64da\u7372\u53d6\u7684\u5be6\u969b\u65b9\u5f0f\u6f14\u793a<\/h1>\n

\u5728\u7576\u4eca\u6578\u64da\u9a45\u52d5\u7684\u4e16\u754c\u4e2d\uff0c\u6578\u64da\u7372\u53d6\u6210\u70ba\u4e86\u4f01\u696d\u6210\u529f\u7684\u95dc\u9375\u56e0\u7d20\u4e4b\u4e00\u3002Oracle\u4f5c\u70ba\u4e00\u500b\u5f37\u5927\u7684\u6578\u64da\u5eab\u7ba1\u7406\u7cfb\u7d71\uff0c\u63d0\u4f9b\u4e86\u591a\u7a2e\u6578\u64da\u7372\u53d6\u7684\u65b9\u5f0f\u3002\u672c\u6587\u5c07\u63a2\u8a0e\u5e7e\u7a2e\u5be6\u969b\u7684Oracle\u6578\u64da\u7372\u53d6\u65b9\u6cd5\uff0c\u4e26\u63d0\u4f9b\u76f8\u61c9\u7684\u793a\u4f8b\u4ee3\u78bc\uff0c\u5e6b\u52a9\u8b80\u8005\u66f4\u597d\u5730\u7406\u89e3\u5982\u4f55\u6709\u6548\u5730\u5f9eOracle\u6578\u64da\u5eab\u4e2d\u7372\u53d6\u6578\u64da\u3002<\/p>\n

1. \u4f7f\u7528SQL\u67e5\u8a62\u7372\u53d6\u6578\u64da<\/h2>\n

\u6700\u57fa\u672c\u7684\u6578\u64da\u7372\u53d6\u65b9\u5f0f\u662f\u4f7f\u7528SQL\u67e5\u8a62\u3002SQL\uff08\u7d50\u69cb\u5316\u67e5\u8a62\u8a9e\u8a00\uff09\u662f\u8207Oracle\u6578\u64da\u5eab\u4ea4\u4e92\u7684\u4e3b\u8981\u5de5\u5177\u3002\u4ee5\u4e0b\u662f\u4e00\u500b\u7c21\u55ae\u7684SQL\u67e5\u8a62\u793a\u4f8b\uff0c\u7528\u65bc\u5f9e\u4e00\u500b\u540d\u70ba\u201cemployees\u201d\u7684\u8868\u4e2d\u7372\u53d6\u6240\u6709\u54e1\u5de5\u7684\u59d3\u540d\u548c\u5de5\u865f\uff1a<\/p>\n

SELECT employee_id, first_name, last_name \nFROM employees;<\/code><\/pre>\n
\u9019\u689d\u67e5\u8a62\u5c07\u8fd4\u56de\u201cemployees\u201d\u8868\u4e2d\u6240\u6709\u54e1\u5de5\u7684\u5de5\u865f\u548c\u59d3\u540d\u3002\u6839\u64da\u9700\u8981\uff0c\u60a8\u53ef\u4ee5\u4f7f\u7528WHERE\u5b50\u53e5\u4f86\u904e\u6ffe\u6578\u64da\uff0c\u4f8b\u5982\uff1a<\/p>\n
SELECT employee_id, first_name, last_name \nFROM employees \nWHERE department_id = 10;<\/code><\/pre>\n
2. \u4f7f\u7528PL\/SQL\u9032\u884c\u6578\u64da\u7372\u53d6<\/h2>\n
PL\/SQL\u662fOracle\u7684\u904e\u7a0b\u5316\u8a9e\u8a00\uff0c\u5141\u8a31\u7528\u6236\u7de8\u5beb\u66f4\u8907\u96dc\u7684\u6578\u64da\u7372\u53d6\u908f\u8f2f\u3002\u4ee5\u4e0b\u662f\u4e00\u500b\u4f7f\u7528PL\/SQL\u7684\u793a\u4f8b\uff0c\u8a72\u793a\u4f8b\u5f9e\u201cemployees\u201d\u8868\u4e2d\u7372\u53d6\u6240\u6709\u54e1\u5de5\u7684\u59d3\u540d\u4e26\u5c07\u5176\u6253\u5370\u51fa\u4f86\uff1a<\/p>\n
DECLARE\n    CURSOR emp_cursor IS\n        SELECT first_name, last_name FROM employees;\n    emp_record emp_cursor%ROWTYPE;\nBEGIN\n    OPEN emp_cursor;\n    LOOP\n        FETCH emp_cursor INTO emp_record;\n        EXIT WHEN emp_cursor%NOTFOUND;\n        DBMS_OUTPUT.PUT_LINE(emp_record.first_name || ' ' || emp_record.last_name);\n    END LOOP;\n    CLOSE emp_cursor;\nEND;<\/code><\/pre>\n
\u9019\u6bb5\u4ee3\u78bc\u4f7f\u7528\u6e38\u6a19\u4f86\u904d\u6b77\u201cemployees\u201d\u8868\u4e2d\u7684\u6240\u6709\u8a18\u9304\uff0c\u4e26\u5c07\u6bcf\u500b\u54e1\u5de5\u7684\u59d3\u540d\u8f38\u51fa\u5230\u63a7\u5236\u53f0\u3002<\/p>\n
3. \u4f7f\u7528Oracle\u6578\u64da\u8a2a\u554f\u5eab\uff08ODP.NET\uff09<\/h2>\n
\u5c0d\u65bc\u4f7f\u7528.NET\u6280\u8853\u7684\u958b\u767c\u8005\uff0cOracle\u6578\u64da\u8a2a\u554f\u5eab\uff08ODP.NET\uff09\u63d0\u4f9b\u4e86\u4e00\u500b\u65b9\u4fbf\u7684\u65b9\u5f0f\u4f86\u9023\u63a5\u548c\u64cd\u4f5cOracle\u6578\u64da\u5eab\u3002\u4ee5\u4e0b\u662f\u4e00\u500b\u4f7f\u7528C#\u548cODP.NET\u5f9eOracle\u6578\u64da\u5eab\u4e2d\u7372\u53d6\u6578\u64da\u7684\u793a\u4f8b\uff1a<\/p>\n
using Oracle.ManagedDataAccess.Client;\n\nstring connectionString = \"User Id=myUsername;Password=myPassword;Data Source=myDataSource;\";\nusing (OracleConnection conn = new OracleConnection(connectionString))\n{\n    conn.Open();\n    OracleCommand cmd = new OracleCommand(\"SELECT employee_id, first_name, last_name FROM employees\", conn);\n    using (OracleDataReader reader = cmd.ExecuteReader())\n    {\n        while (reader.Read())\n        {\n            Console.WriteLine($\"{reader[\"employee_id\"]}, {reader[\"first_name\"]}, {reader[\"last_name\"]}\");\n        }\n    }\n}<\/code><\/pre>\n
\u9019\u6bb5\u4ee3\u78bc\u5c55\u793a\u4e86\u5982\u4f55\u4f7f\u7528ODP.NET\u9023\u63a5\u5230Oracle\u6578\u64da\u5eab\u4e26\u57f7\u884c\u67e5\u8a62\uff0c\u7136\u5f8c\u5c07\u7d50\u679c\u8f38\u51fa\u5230\u63a7\u5236\u53f0\u3002<\/p>\n
4. \u4f7f\u7528Oracle REST Data Services (ORDS)<\/h2>\n
Oracle REST Data Services\uff08ORDS\uff09\u5141\u8a31\u7528\u6236\u901a\u904eRESTful API\u4f86\u8a2a\u554fOracle\u6578\u64da\u5eab\u3002\u9019\u7a2e\u65b9\u6cd5\u7279\u5225\u9069\u5408\u65bcWeb\u61c9\u7528\u7a0b\u5e8f\u3002\u4ee5\u4e0b\u662f\u4e00\u500b\u4f7f\u7528HTTP GET\u8acb\u6c42\u4f86\u7372\u53d6\u6578\u64da\u7684\u793a\u4f8b\uff1a<\/p>\n
GET http:\/\/localhost:8080\/ords\/mySchema\/employees\n<\/code><\/pre>\n
\u9019\u689d\u8acb\u6c42\u5c07\u8fd4\u56de\u201cemployees\u201d\u8868\u4e2d\u7684\u6240\u6709\u8a18\u9304\uff0c\u901a\u5e38\u4ee5JSON\u683c\u5f0f\u8fd4\u56de\uff0c\u65b9\u4fbf\u524d\u7aef\u61c9\u7528\u7a0b\u5e8f\u9032\u884c\u8655\u7406\u3002<\/p>\n
\u7e3d\u7d50<\/h2>\n
\u672c\u6587\u4ecb\u7d39\u4e86\u5e7e\u7a2e\u5f9eOracle\u6578\u64da\u5eab\u4e2d\u7372\u53d6\u6578\u64da\u7684\u5be6\u969b\u65b9\u5f0f\uff0c\u5305\u62ec\u4f7f\u7528SQL\u67e5\u8a62\u3001PL\/SQL\u3001ODP.NET\u548cORDS\u7b49\u65b9\u6cd5\u3002\u9019\u4e9b\u6280\u8853\u4e0d\u50c5\u80fd\u5920\u5e6b\u52a9\u958b\u767c\u8005\u9ad8\u6548\u5730\u7372\u53d6\u6578\u64da\uff0c\u9084\u80fd\u5920\u6839\u64da\u5177\u9ad4\u9700\u6c42\u9032\u884c\u9748\u6d3b\u7684\u6578\u64da\u8655\u7406\u3002\u5c0d\u65bc\u9700\u8981\u7a69\u5b9a\u548c\u9ad8\u6548\u6578\u64da\u5b58\u53d6\u7684\u4f01\u696d\uff0c\u9078\u64c7\u5408\u9069\u7684\u6578\u64da\u7372\u53d6\u65b9\u5f0f\u81f3\u95dc\u91cd\u8981\u3002<\/p>\n
\u5982\u679c\u60a8\u6b63\u5728\u5c0b\u627e\u53ef\u9760\u7684 \u9999\u6e2fVPS<\/a> \u89e3\u6c7a\u65b9\u6848\u4f86\u652f\u6301\u60a8\u7684Oracle\u6578\u64da\u5eab\uff0cServer.HK\u63d0\u4f9b\u591a\u7a2e\u9078\u64c7\uff0c\u6eff\u8db3\u4e0d\u540c\u9700\u6c42\u7684\u5ba2\u6236\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"
\u63a2\u7d22Oracle\u6578\u64da\u7372\u53d6\u7684\u5be6\u969b\u65b9\u5f0f\uff0c\u901a\u904e\u793a\u7bc4\u5b78\u7fd2\u9ad8\u6548\u6578\u64da\u7ba1\u7406\u548c\u5206\u6790\u6280\u5de7\uff0c\u63d0\u5347\u696d\u52d9\u6c7a\u7b56\u80fd\u529b\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-95420","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/95420","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=95420"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/95420\/revisions"}],"predecessor-version":[{"id":95421,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/95420\/revisions\/95421"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=95420"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=95420"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=95420"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}