{"id":95046,"date":"2024-10-19T21:47:17","date_gmt":"2024-10-19T13:47:17","guid":{"rendered":"https:\/\/server.hk\/cnblog\/95046\/"},"modified":"2024-10-19T21:47:17","modified_gmt":"2024-10-19T13:47:17","slug":"oracle%e5%ad%98%e5%84%b2%e9%81%8e%e7%a8%8b%e4%b8%ad%e5%88%86%e9%a0%81%ef%bc%8c%e7%94%a8java%e4%bb%a3%e7%a2%bc%e4%be%86%e5%ae%8c%e6%88%90","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/95046\/","title":{"rendered":"Oracle\u5b58\u5132\u904e\u7a0b\u4e2d\u5206\u9801\uff0c\u7528Java\u4ee3\u78bc\u4f86\u5b8c\u6210"},"content":{"rendered":"

Oracle\u5b58\u5132\u904e\u7a0b\u4e2d\u5206\u9801\uff0c\u7528Java\u4ee3\u78bc\u4f86\u5b8c\u6210<\/h1>\n

\u5728\u73fe\u4ee3\u61c9\u7528\u7a0b\u5e8f\u4e2d\uff0c\u6578\u64da\u7684\u6709\u6548\u7ba1\u7406\u548c\u5c55\u793a\u81f3\u95dc\u91cd\u8981\u3002\u5c24\u5176\u662f\u5728\u8655\u7406\u5927\u91cf\u6578\u64da\u6642\uff0c\u5206\u9801\u6280\u8853\u53ef\u4ee5\u986f\u8457\u63d0\u9ad8\u7528\u6236\u9ad4\u9a57\u3002\u672c\u6587\u5c07\u63a2\u8a0e\u5982\u4f55\u5728Oracle\u5b58\u5132\u904e\u7a0b\u4e2d\u5be6\u73fe\u5206\u9801\uff0c\u4e26\u4f7f\u7528Java\u4ee3\u78bc\u4f86\u5b8c\u6210\u9019\u4e00\u904e\u7a0b\u3002<\/p>\n

\u4ec0\u9ebc\u662f\u5206\u9801\uff1f<\/h2>\n

\u5206\u9801\u662f\u4e00\u7a2e\u5c07\u6578\u64da\u5206\u6210\u591a\u500b\u90e8\u5206\u7684\u6280\u8853\uff0c\u901a\u5e38\u7528\u65bc\u986f\u793a\u5927\u91cf\u6578\u64da\u6642\u3002\u9019\u6a23\u7528\u6236\u53ef\u4ee5\u66f4\u8f15\u9b06\u5730\u700f\u89bd\u6578\u64da\uff0c\u800c\u4e0d\u5fc5\u4e00\u6b21\u6027\u52a0\u8f09\u6240\u6709\u6578\u64da\u3002\u5206\u9801\u7684\u5be6\u73fe\u901a\u5e38\u6d89\u53ca\u5230\u5169\u500b\u4e3b\u8981\u53c3\u6578\uff1a\u7576\u524d\u9801\u78bc\u548c\u6bcf\u9801\u986f\u793a\u7684\u8a18\u9304\u6578\u3002<\/p>\n

Oracle\u4e2d\u7684\u5206\u9801\u5be6\u73fe<\/h2>\n

\u5728Oracle\u4e2d\uff0c\u5206\u9801\u53ef\u4ee5\u901a\u904e\u4f7f\u7528ROWNUM\u6216ROW_NUMBER()\u51fd\u6578\u4f86\u5be6\u73fe\u3002\u4ee5\u4e0b\u662f\u4f7f\u7528ROW_NUMBER()\u7684\u57fa\u672c\u6b65\u9a5f\uff1a<\/p>\n

CREATE OR REPLACE PROCEDURE get_paginated_data (\n    p_page_number IN NUMBER,\n    p_page_size IN NUMBER,\n    p_cursor OUT SYS_REFCURSOR\n) AS\nBEGIN\n    OPEN p_cursor FOR\n    SELECT * FROM (\n        SELECT a.*, ROW_NUMBER() OVER (ORDER BY id) rnum\n        FROM your_table a\n    )\n    WHERE rnum BETWEEN ((p_page_number - 1) * p_page_size + 1) AND (p_page_number * p_page_size);\nEND;\n<\/code><\/pre>\n
\u5728\u9019\u6bb5\u4ee3\u78bc\u4e2d\uff0c\u6211\u5011\u5275\u5efa\u4e86\u4e00\u500b\u540d\u70ba`get_paginated_data`\u7684\u5b58\u5132\u904e\u7a0b\uff0c\u63a5\u53d7\u7576\u524d\u9801\u78bc\u548c\u6bcf\u9801\u5927\u5c0f\u4f5c\u70ba\u53c3\u6578\uff0c\u4e26\u8fd4\u56de\u4e00\u500b\u6e38\u6a19\uff0c\u8a72\u6e38\u6a19\u5305\u542b\u6240\u9700\u7684\u6578\u64da\u3002<\/p>\n
Java\u4ee3\u78bc\u793a\u4f8b<\/h2>\n
\u63a5\u4e0b\u4f86\uff0c\u6211\u5011\u5c07\u5c55\u793a\u5982\u4f55\u5728Java\u4e2d\u8abf\u7528\u9019\u500b\u5b58\u5132\u904e\u7a0b\u3002\u4ee5\u4e0b\u662f\u4f7f\u7528JDBC\u7684\u793a\u4f8b\u4ee3\u78bc\uff1a<\/p>\n
import java.sql.*;\n\npublic class PaginationExample {\n    public static void main(String[] args) {\n        Connection conn = null;\n        CallableStatement stmt = null;\n        ResultSet rs = null;\n\n        try {\n            \/\/ \u9023\u63a5\u5230Oracle\u6578\u64da\u5eab\n            conn = DriverManager.getConnection(\"jdbc:oracle:thin:@localhost:1521:xe\", \"username\", \"password\");\n            stmt = conn.prepareCall(\"{call get_paginated_data(?, ?, ?)}\");\n            \n            \/\/ \u8a2d\u7f6e\u9801\u78bc\u548c\u6bcf\u9801\u5927\u5c0f\n            stmt.setInt(1, 1); \/\/ \u7576\u524d\u9801\u78bc\n            stmt.setInt(2, 10); \/\/ \u6bcf\u9801\u986f\u793a10\u689d\u8a18\u9304\n            stmt.registerOutParameter(3, OracleTypes.CURSOR);\n            \n            \/\/ \u57f7\u884c\u5b58\u5132\u904e\u7a0b\n            stmt.execute();\n            rs = (ResultSet) stmt.getObject(3);\n            \n            \/\/ \u8f38\u51fa\u7d50\u679c\n            while (rs.next()) {\n                System.out.println(\"ID: \" + rs.getInt(\"id\") + \", Name: \" + rs.getString(\"name\"));\n            }\n        } catch (SQLException e) {\n            e.printStackTrace();\n        } finally {\n            \/\/ \u95dc\u9589\u8cc7\u6e90\n            try { if (rs != null) rs.close(); } catch (SQLException e) { e.printStackTrace(); }\n            try { if (stmt != null) stmt.close(); } catch (SQLException e) { e.printStackTrace(); }\n            try { if (conn != null) conn.close(); } catch (SQLException e) { e.printStackTrace(); }\n        }\n    }\n}\n<\/code><\/pre>\n
\u5728\u9019\u6bb5Java\u4ee3\u78bc\u4e2d\uff0c\u6211\u5011\u9996\u5148\u5efa\u7acb\u8207Oracle\u6578\u64da\u5eab\u7684\u9023\u63a5\uff0c\u7136\u5f8c\u8abf\u7528`get_paginated_data`\u5b58\u5132\u904e\u7a0b\uff0c\u4e26\u5c07\u7d50\u679c\u8f38\u51fa\u5230\u63a7\u5236\u53f0\u3002<\/p>\n
\u7e3d\u7d50<\/h2>\n
\u5206\u9801\u6280\u8853\u5728\u8655\u7406\u5927\u91cf\u6578\u64da\u6642\u975e\u5e38\u91cd\u8981\uff0c\u80fd\u5920\u986f\u8457\u63d0\u5347\u7528\u6236\u9ad4\u9a57\u3002\u901a\u904e\u5728Oracle\u4e2d\u4f7f\u7528\u5b58\u5132\u904e\u7a0b\u4f86\u5be6\u73fe\u5206\u9801\uff0c\u4e26\u7d50\u5408Java\u4ee3\u78bc\u9032\u884c\u8abf\u7528\uff0c\u6211\u5011\u53ef\u4ee5\u9ad8\u6548\u5730\u7ba1\u7406\u548c\u5c55\u793a\u6578\u64da\u3002\u5c0d\u65bc\u9700\u8981\u9ad8\u6548\u6578\u64da\u8655\u7406\u7684\u61c9\u7528\u7a0b\u5e8f\uff0c\u9078\u64c7\u5408\u9069\u7684 VPS<\/a> \u89e3\u6c7a\u65b9\u6848\u4e5f\u662f\u81f3\u95dc\u91cd\u8981\u7684\uff0c\u9019\u6a23\u53ef\u4ee5\u78ba\u4fdd\u7cfb\u7d71\u7684\u7a69\u5b9a\u6027\u548c\u6027\u80fd\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"
\u63a2\u7d22\u5982\u4f55\u5728Oracle\u5b58\u5132\u904e\u7a0b\u4e2d\u5be6\u73fe\u5206\u9801\uff0c\u4e26\u4f7f\u7528Java\u4ee3\u78bc\u9032\u884c\u9ad8\u6548\u6578\u64da\u8655\u7406\u548c\u67e5\u8a62\u512a\u5316\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-95046","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/95046","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=95046"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/95046\/revisions"}],"predecessor-version":[{"id":95047,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/95046\/revisions\/95047"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=95046"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=95046"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=95046"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}