{"id":60545,"date":"2024-10-13T03:45:16","date_gmt":"2024-10-12T19:45:16","guid":{"rendered":"https:\/\/server.hk\/cnblog\/60545\/"},"modified":"2024-10-13T03:45:16","modified_gmt":"2024-10-12T19:45:16","slug":"db2%e5%bb%ba%e7%ab%8b%e6%95%b8%e6%93%9a%e5%ba%ab%e5%88%86%e5%8d%80%e8%a6%81%e7%94%a8%e7%9a%84%e5%91%bd%e4%bb%a4%e6%9c%89%e5%93%aa%e4%ba%9b%ef%bc%9f","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/60545\/","title":{"rendered":"DB2\u5efa\u7acb\u6578\u64da\u5eab\u5206\u5340\u8981\u7528\u7684\u547d\u4ee4\u6709\u54ea\u4e9b\uff1f"},"content":{"rendered":"<h1 id=\"db2%e5%bb%ba%e7%ab%8b%e6%95%b8%e6%93%9a%e5%ba%ab%e5%88%86%e5%8d%80%e8%a6%81%e7%94%a8%e7%9a%84%e5%91%bd%e4%bb%a4%e6%9c%89%e5%93%aa%e4%ba%9b%ef%bc%9f-URpUNNfBZa\">DB2\u5efa\u7acb\u6578\u64da\u5eab\u5206\u5340\u8981\u7528\u7684\u547d\u4ee4\u6709\u54ea\u4e9b\uff1f<\/h1>\n<p>\u5728\u73fe\u4ee3\u6578\u64da\u5eab\u7ba1\u7406\u4e2d\uff0c\u5206\u5340\u6280\u8853\u5df2\u6210\u70ba\u63d0\u5347\u6027\u80fd\u548c\u7ba1\u7406\u6548\u7387\u7684\u91cd\u8981\u624b\u6bb5\u3002IBM\u7684DB2\u6578\u64da\u5eab\u7cfb\u7d71\u63d0\u4f9b\u4e86\u5f37\u5927\u7684\u5206\u5340\u529f\u80fd\uff0c\u5141\u8a31\u7528\u6236\u6839\u64da\u9700\u6c42\u5c07\u6578\u64da\u5206\u6563\u5230\u4e0d\u540c\u7684\u5206\u5340\u4e2d\u3002\u672c\u6587\u5c07\u4ecb\u7d39\u5728DB2\u4e2d\u5efa\u7acb\u6578\u64da\u5eab\u5206\u5340\u6240\u9700\u7684\u4e3b\u8981\u547d\u4ee4\u53ca\u5176\u4f7f\u7528\u65b9\u6cd5\u3002<\/p>\n<h2 id=\"%e4%bb%80%e9%ba%bc%e6%98%af%e6%95%b8%e6%93%9a%e5%ba%ab%e5%88%86%e5%8d%80%ef%bc%9f-URpUNNfBZa\">\u4ec0\u9ebc\u662f\u6578\u64da\u5eab\u5206\u5340\uff1f<\/h2>\n<p>\u6578\u64da\u5eab\u5206\u5340\u662f\u5c07\u6578\u64da\u8868\u6216\u7d22\u5f15\u5283\u5206\u70ba\u591a\u500b\u90e8\u5206\u7684\u904e\u7a0b\uff0c\u9019\u4e9b\u90e8\u5206\u7a31\u70ba\u5206\u5340\u3002\u6bcf\u500b\u5206\u5340\u53ef\u4ee5\u7368\u7acb\u5b58\u5132\u548c\u7ba1\u7406\uff0c\u9019\u6a23\u53ef\u4ee5\u63d0\u9ad8\u67e5\u8a62\u6027\u80fd\uff0c\u6e1b\u5c11\u6578\u64da\u5eab\u7684\u7dad\u8b77\u6210\u672c\u3002DB2\u652f\u6301\u591a\u7a2e\u5206\u5340\u65b9\u6cd5\uff0c\u5305\u62ec\u7bc4\u570d\u5206\u5340\u3001\u5217\u8868\u5206\u5340\u548c\u54c8\u5e0c\u5206\u5340\u7b49\u3002<\/p>\n<h2 id=\"db2%e5%88%86%e5%8d%80%e7%9a%84%e5%9f%ba%e6%9c%ac%e5%91%bd%e4%bb%a4-URpUNNfBZa\">DB2\u5206\u5340\u7684\u57fa\u672c\u547d\u4ee4<\/h2>\n<p>\u5728DB2\u4e2d\uff0c\u5efa\u7acb\u6578\u64da\u5eab\u5206\u5340\u7684\u904e\u7a0b\u4e3b\u8981\u6d89\u53ca\u4ee5\u4e0b\u5e7e\u500b\u547d\u4ee4\uff1a<\/p>\n<h3 id=\"1-create-table-URpUNNfBZa\">1. CREATE TABLE<\/h3>\n<p>\u4f7f\u7528CREATE TABLE\u547d\u4ee4\u53ef\u4ee5\u5275\u5efa\u4e00\u500b\u5206\u5340\u8868\u3002\u4ee5\u4e0b\u662f\u4e00\u500b\u7bc4\u4f8b\uff1a<\/p>\n<pre><code>CREATE TABLE sales (\n    id INT,\n    amount DECIMAL(10, 2),\n    sale_date DATE\n) PARTITION BY RANGE (sale_date) (\n    PARTITION p1 STARTING FROM ('2023-01-01') ENDING AT ('2023-06-30'),\n    PARTITION p2 STARTING FROM ('2023-07-01') ENDING AT ('2023-12-31')\n);<\/code><\/pre>\n<p>\u5728\u9019\u500b\u4f8b\u5b50\u4e2d\uff0c\u6211\u5011\u5275\u5efa\u4e86\u4e00\u500b\u540d\u70basales\u7684\u8868\uff0c\u4e26\u6839\u64da\u92b7\u552e\u65e5\u671f\u9032\u884c\u7bc4\u570d\u5206\u5340\u3002<\/p>\n<h3 id=\"2-alter-table-URpUNNfBZa\">2. ALTER TABLE<\/h3>\n<p>\u5982\u679c\u9700\u8981\u5c0d\u5df2\u5b58\u5728\u7684\u8868\u9032\u884c\u5206\u5340\u8a2d\u7f6e\uff0c\u53ef\u4ee5\u4f7f\u7528ALTER TABLE\u547d\u4ee4\u3002\u4ee5\u4e0b\u662f\u4fee\u6539\u8868\u4ee5\u6dfb\u52a0\u65b0\u5206\u5340\u7684\u7bc4\u4f8b\uff1a<\/p>\n<pre><code>ALTER TABLE sales\nADD PARTITION p3 STARTING FROM ('2024-01-01') ENDING AT ('2024-06-30');<\/code><\/pre>\n<p>\u9019\u689d\u547d\u4ee4\u5c07\u5728sales\u8868\u4e2d\u6dfb\u52a0\u4e00\u500b\u65b0\u7684\u5206\u5340p3\u3002<\/p>\n<h3 id=\"3-drop-partition-URpUNNfBZa\">3. DROP PARTITION<\/h3>\n<p>\u5982\u679c\u9700\u8981\u522a\u9664\u67d0\u500b\u5206\u5340\uff0c\u53ef\u4ee5\u4f7f\u7528DROP PARTITION\u547d\u4ee4\u3002\u4ee5\u4e0b\u662f\u522a\u9664\u5206\u5340\u7684\u7bc4\u4f8b\uff1a<\/p>\n<pre><code>ALTER TABLE sales\nDROP PARTITION p1;<\/code><\/pre>\n<p>\u9019\u689d\u547d\u4ee4\u5c07\u522a\u9664sales\u8868\u4e2d\u7684\u5206\u5340p1\u3002<\/p>\n<h3 id=\"4-select-from-partition-URpUNNfBZa\">4. SELECT FROM PARTITION<\/h3>\n<p>\u5728\u67e5\u8a62\u6642\uff0c\u53ef\u4ee5\u6307\u5b9a\u5f9e\u7279\u5b9a\u7684\u5206\u5340\u4e2d\u9078\u64c7\u6578\u64da\u3002\u4ee5\u4e0b\u662f\u67e5\u8a62\u7279\u5b9a\u5206\u5340\u7684\u7bc4\u4f8b\uff1a<\/p>\n<pre><code>SELECT * FROM sales PARTITION p2;<\/code><\/pre>\n<p>\u9019\u689d\u547d\u4ee4\u5c07\u50c5\u5f9e\u5206\u5340p2\u4e2d\u9078\u64c7\u6578\u64da\u3002<\/p>\n<h2 id=\"%e5%88%86%e5%8d%80%e7%9a%84%e5%84%aa%e5%8b%a2-URpUNNfBZa\">\u5206\u5340\u7684\u512a\u52e2<\/h2>\n<p>\u4f7f\u7528DB2\u7684\u6578\u64da\u5eab\u5206\u5340\u6280\u8853\u6709\u591a\u500b\u512a\u52e2\uff0c\u5305\u62ec\uff1a<\/p>\n<ul>\n<li>\u63d0\u9ad8\u67e5\u8a62\u6027\u80fd\uff1a\u901a\u904e\u9650\u5236\u67e5\u8a62\u7bc4\u570d\uff0c\u6e1b\u5c11\u9700\u8981\u6383\u63cf\u7684\u6578\u64da\u91cf\u3002<\/li>\n<li>\u7c21\u5316\u6578\u64da\u7ba1\u7406\uff1a\u53ef\u4ee5\u7368\u7acb\u7ba1\u7406\u6bcf\u500b\u5206\u5340\uff0c\u4fbf\u65bc\u6578\u64da\u7684\u5099\u4efd\u548c\u6062\u5fa9\u3002<\/li>\n<li>\u9748\u6d3b\u7684\u6578\u64da\u5b58\u5132\uff1a\u6839\u64da\u696d\u52d9\u9700\u6c42\u8abf\u6574\u5206\u5340\u7b56\u7565\uff0c\u9748\u6d3b\u61c9\u5c0d\u6578\u64da\u589e\u9577\u3002<\/li>\n<\/ul>\n<h2 id=\"%e7%b8%bd%e7%b5%90-URpUNNfBZa\">\u7e3d\u7d50<\/h2>\n<p>\u5728DB2\u4e2d\uff0c\u5efa\u7acb\u548c\u7ba1\u7406\u6578\u64da\u5eab\u5206\u5340\u7684\u547d\u4ee4\u5305\u62ecCREATE TABLE\u3001ALTER TABLE\u3001DROP PARTITION\u548cSELECT FROM PARTITION\u7b49\u3002\u9019\u4e9b\u547d\u4ee4\u4f7f\u5f97\u7528\u6236\u80fd\u5920\u9748\u6d3b\u5730\u7ba1\u7406\u6578\u64da\uff0c\u63d0\u9ad8\u6578\u64da\u5eab\u7684\u6027\u80fd\u548c\u53ef\u7dad\u8b77\u6027\u3002\u5c0d\u65bc\u9700\u8981\u9ad8\u6548\u6578\u64da\u8655\u7406\u7684\u4f01\u696d\u4f86\u8aaa\uff0c\u638c\u63e1\u9019\u4e9b\u547d\u4ee4\u662f\u975e\u5e38\u91cd\u8981\u7684\u3002<\/p>\n<p>\u5982\u679c\u60a8\u5c0d\u65bc\u6578\u64da\u5eab\u7ba1\u7406\u6709\u9032\u4e00\u6b65\u7684\u9700\u6c42\uff0c\u7121\u8ad6\u662f\u5c0b\u627e\u9ad8\u6548\u7684 <a href=\"https:\/\/server.hk\">VPS<\/a> \u89e3\u6c7a\u65b9\u6848\uff0c\u9084\u662f\u9700\u8981\u7a69\u5b9a\u7684 <a href=\"https:\/\/server.hk\">\u9999\u6e2f\u4f3a\u670d\u5668<\/a>\uff0c\u90fd\u53ef\u4ee5\u8003\u616e\u6211\u5011\u7684\u670d\u52d9\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u4e86\u89e3DB2\u5efa\u7acb\u6578\u64da\u5eab\u5206\u5340\u6240\u9700\u7684\u547d\u4ee4\uff0c\u63d0\u5347\u6578\u64da\u7ba1\u7406\u6548\u7387\uff0c\u512a\u5316\u6027\u80fd\uff0c\u78ba\u4fdd\u6578\u64da\u5b89\u5168\u8207\u53ef\u64f4\u5c55\u6027\u3002<\/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-60545","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/60545","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=60545"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/60545\/revisions"}],"predecessor-version":[{"id":60546,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/60545\/revisions\/60546"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=60545"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=60545"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=60545"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}