{"id":60727,"date":"2024-10-13T05:18:15","date_gmt":"2024-10-12T21:18:15","guid":{"rendered":"https:\/\/server.hk\/cnblog\/60727\/"},"modified":"2024-10-13T05:18:15","modified_gmt":"2024-10-12T21:18:15","slug":"db2%e6%95%b8%e6%93%9a%e5%ba%ab%e5%88%86%e5%8d%80%e8%a1%a8%e5%89%b5%e5%bb%ba%e6%ad%a5%e9%a9%9f%e7%b0%a1%e6%9e%90-db2%e6%95%b8%e6%93%9a%e5%ba%ab%e5%89%b5%e5%bb%ba%e5%88%86%e5%8d%80%e8%a1%a8","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/60727\/","title":{"rendered":"DB2\u6578\u64da\u5eab\u5206\u5340\u8868\u5275\u5efa\u6b65\u9a5f\u7c21\u6790 (db2\u6578\u64da\u5eab\u5275\u5efa\u5206\u5340\u8868)"},"content":{"rendered":"

DB2\u6578\u64da\u5eab\u5206\u5340\u8868\u5275\u5efa\u6b65\u9a5f\u7c21\u6790<\/h1>\n

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\u4ec0\u9ebc\u662f\u5206\u5340\u8868\uff1f<\/h2>\n

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\u5275\u5efa\u5206\u5340\u8868\u7684\u6b65\u9a5f<\/h2>\n

\u6b65\u9a5f\u4e00\uff1a\u8a2d\u8a08\u5206\u5340\u7b56\u7565<\/h3>\n

\u5728\u5275\u5efa\u5206\u5340\u8868\u4e4b\u524d\uff0c\u9996\u5148\u9700\u8981\u8a2d\u8a08\u4e00\u500b\u5408\u9069\u7684\u5206\u5340\u7b56\u7565\u3002\u9019\u5305\u62ec\u9078\u64c7\u5206\u5340\u9375\u548c\u78ba\u5b9a\u5206\u5340\u7684\u6578\u91cf\u3002\u4f8b\u5982\uff0c\u5982\u679c\u4f60\u7684\u6578\u64da\u4e3b\u8981\u662f\u6309\u65e5\u671f\u67e5\u8a62\u7684\uff0c\u5247\u53ef\u4ee5\u9078\u64c7\u65e5\u671f\u4f5c\u70ba\u5206\u5340\u9375\u3002<\/p>\n

\u6b65\u9a5f\u4e8c\uff1a\u5275\u5efa\u5206\u5340\u8868<\/h3>\n

\u4f7f\u7528DB2\u7684SQL\u8a9e\u53e5\u4f86\u5275\u5efa\u5206\u5340\u8868\u3002\u4ee5\u4e0b\u662f\u4e00\u500b\u7c21\u55ae\u7684\u7bc4\u4f8b\uff0c\u5c55\u793a\u5982\u4f55\u5275\u5efa\u4e00\u500b\u57fa\u65bc\u7bc4\u570d\u7684\u5206\u5340\u8868\uff1a<\/p>\n

CREATE TABLE sales (\n    id INT NOT NULL,\n    sale_date DATE NOT NULL,\n    amount DECIMAL(10, 2) NOT NULL\n) PARTITION BY RANGE (sale_date) (\n    PARTITION p1 STARTING FROM ('2023-01-01') ENDING AT ('2023-03-31'),\n    PARTITION p2 STARTING FROM ('2023-04-01') ENDING AT ('2023-06-30'),\n    PARTITION p3 STARTING FROM ('2023-07-01') ENDING AT ('2023-09-30'),\n    PARTITION p4 STARTING FROM ('2023-10-01') ENDING AT ('2023-12-31')\n);<\/code><\/pre>\n
\u5728\u9019\u500b\u4f8b\u5b50\u4e2d\uff0c\u6211\u5011\u5275\u5efa\u4e86\u4e00\u500b\u540d\u70ba\u201csales\u201d\u7684\u8868\uff0c\u4e26\u6839\u64da\u201csale_date\u201d\u5b57\u6bb5\u9032\u884c\u7bc4\u570d\u5206\u5340\u3002<\/p>\n
\u6b65\u9a5f\u4e09\uff1a\u63d2\u5165\u6578\u64da<\/h3>\n
\u5275\u5efa\u5206\u5340\u8868\u5f8c\uff0c\u53ef\u4ee5\u4f7f\u7528INSERT\u8a9e\u53e5\u5c07\u6578\u64da\u63d2\u5165\u5230\u8868\u4e2d\u3002DB2\u6703\u81ea\u52d5\u5c07\u6578\u64da\u653e\u5165\u76f8\u61c9\u7684\u5206\u5340\u4e2d\u3002\u4f8b\u5982\uff1a<\/p>\n
INSERT INTO sales (id, sale_date, amount) VALUES (1, '2023-01-15', 100.00);<\/code><\/pre>\n
\u6b65\u9a5f\u56db\uff1a\u67e5\u8a62\u6578\u64da<\/h3>\n
\u67e5\u8a62\u5206\u5340\u8868\u7684\u6578\u64da\u8207\u67e5\u8a62\u666e\u901a\u8868\u7684\u65b9\u5f0f\u76f8\u540c\u3002DB2\u6703\u6839\u64da\u67e5\u8a62\u689d\u4ef6\u81ea\u52d5\u9078\u64c7\u5408\u9069\u7684\u5206\u5340\u4f86\u63d0\u9ad8\u67e5\u8a62\u6548\u7387\u3002\u4f8b\u5982\uff1a<\/p>\n
SELECT * FROM sales WHERE sale_date BETWEEN '2023-01-01' AND '2023-03-31';<\/code><\/pre>\n
\u6b65\u9a5f\u4e94\uff1a\u7dad\u8b77\u5206\u5340\u8868<\/h3>\n
\u96a8\u8457\u6578\u64da\u7684\u589e\u9577\uff0c\u53ef\u80fd\u9700\u8981\u5c0d\u5206\u5340\u8868\u9032\u884c\u7dad\u8b77\uff0c\u4f8b\u5982\u6dfb\u52a0\u65b0\u7684\u5206\u5340\u6216\u5408\u4f75\u73fe\u6709\u7684\u5206\u5340\u3002\u9019\u53ef\u4ee5\u901a\u904eALTER TABLE\u8a9e\u53e5\u4f86\u5be6\u73fe\uff1a<\/p>\n
ALTER TABLE sales ADD PARTITION p5 STARTING FROM ('2024-01-01') ENDING AT ('2024-03-31');<\/code><\/pre>\n
\u7e3d\u7d50<\/h2>\n
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