{"id":60731,"date":"2024-10-13T05:20:15","date_gmt":"2024-10-12T21:20:15","guid":{"rendered":"https:\/\/server.hk\/cnblog\/60731\/"},"modified":"2024-10-13T05:20:15","modified_gmt":"2024-10-12T21:20:15","slug":"db2%e6%95%b8%e6%93%9a%e5%ba%ab%e5%88%86%e9%a0%81%e6%8a%80%e5%b7%a7%ef%bc%8c%e8%ae%93%e6%82%a8%e6%9f%a5%e6%89%be%e6%9b%b4%e9%ab%98%e6%95%88%ef%bc%81-db2%e6%95%b8%e6%93%9a%e5%ba%ab%e7%b4%9a%e5%88%a5","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/60731\/","title":{"rendered":"DB2\u6578\u64da\u5eab\u5206\u9801\u6280\u5de7\uff0c\u8b93\u60a8\u67e5\u627e\u66f4\u9ad8\u6548\uff01 (db2\u6578\u64da\u5eab\u7d1a\u5225\u5206\u9801)"},"content":{"rendered":"<h1 id=\"db2%e6%95%b8%e6%93%9a%e5%ba%ab%e5%88%86%e9%a0%81%e6%8a%80%e5%b7%a7%ef%bc%8c%e8%ae%93%e6%82%a8%e6%9f%a5%e6%89%be%e6%9b%b4%e9%ab%98%e6%95%88%ef%bc%81-gRtPQbsytS\">DB2\u6578\u64da\u5eab\u5206\u9801\u6280\u5de7\uff0c\u8b93\u60a8\u67e5\u627e\u66f4\u9ad8\u6548\uff01<\/h1>\n<p>\u5728\u7576\u4eca\u6578\u64da\u9a45\u52d5\u7684\u4e16\u754c\u4e2d\uff0c\u6578\u64da\u5eab\u7684\u6027\u80fd\u548c\u6548\u7387\u81f3\u95dc\u91cd\u8981\u3002IBM\u7684DB2\u6578\u64da\u5eab\u7cfb\u7d71\u4ee5\u5176\u5f37\u5927\u7684\u529f\u80fd\u548c\u9748\u6d3b\u6027\u800c\u805e\u540d\uff0c\u7279\u5225\u662f\u5728\u8655\u7406\u5927\u91cf\u6578\u64da\u6642\u3002\u672c\u6587\u5c07\u63a2\u8a0eDB2\u6578\u64da\u5eab\u7684\u5206\u9801\u6280\u5de7\uff0c\u5e6b\u52a9\u60a8\u66f4\u9ad8\u6548\u5730\u67e5\u627e\u548c\u7ba1\u7406\u6578\u64da\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%e9%a0%81%ef%bc%9f-gRtPQbsytS\">\u4ec0\u9ebc\u662f\u6578\u64da\u5eab\u5206\u9801\uff1f<\/h2>\n<p>\u6578\u64da\u5eab\u5206\u9801\u662f\u6307\u5c07\u67e5\u8a62\u7d50\u679c\u5206\u6210\u591a\u500b\u9801\u9762\uff0c\u4ee5\u4fbf\u65bc\u7528\u6236\u9010\u6b65\u67e5\u770b\u3002\u9019\u5728\u8655\u7406\u5927\u91cf\u6578\u64da\u6642\u7279\u5225\u6709\u7528\uff0c\u56e0\u70ba\u4e00\u6b21\u6027\u52a0\u8f09\u6240\u6709\u6578\u64da\u53ef\u80fd\u6703\u5c0e\u81f4\u6027\u80fd\u4e0b\u964d\u3002DB2\u63d0\u4f9b\u4e86\u591a\u7a2e\u65b9\u6cd5\u4f86\u5be6\u73fe\u6578\u64da\u5206\u9801\uff0c\u4ee5\u4e0b\u662f\u4e00\u4e9b\u5e38\u7528\u7684\u6280\u5de7\u3002<\/p>\n<h2 id=\"%e4%bd%bf%e7%94%a8offset%e5%92%8cfetch%e5%ad%90%e5%8f%a5-gRtPQbsytS\">\u4f7f\u7528OFFSET\u548cFETCH\u5b50\u53e5<\/h2>\n<p>\u5728DB2\u4e2d\uff0c\u60a8\u53ef\u4ee5\u4f7f\u7528<code>OFFSET<\/code>\u548c<code>FETCH<\/code>\u5b50\u53e5\u4f86\u5be6\u73fe\u5206\u9801\u3002\u9019\u5169\u500b\u5b50\u53e5\u53ef\u4ee5\u8207<code>SELECT<\/code>\u8a9e\u53e5\u7d50\u5408\u4f7f\u7528\uff0c\u4ee5\u4fbf\u5f9e\u67e5\u8a62\u7d50\u679c\u4e2d\u63d0\u53d6\u7279\u5b9a\u7684\u6578\u64da\u884c\u3002<\/p>\n<pre><code>SELECT * FROM your_table\nORDER BY your_column\nOFFSET 10 ROWS\nFETCH NEXT 10 ROWS ONLY;<\/code><\/pre>\n<p>\u5728\u9019\u500b\u4f8b\u5b50\u4e2d\uff0c\u67e5\u8a62\u5c07\u8df3\u904e\u524d10\u884c\uff0c\u7136\u5f8c\u63d0\u53d6\u63a5\u4e0b\u4f86\u768410\u884c\u3002\u9019\u6a23\uff0c\u60a8\u53ef\u4ee5\u8f15\u9b06\u5730\u5be6\u73fe\u5206\u9801\u529f\u80fd\u3002<\/p>\n<h2 id=\"%e4%bd%bf%e7%94%a8row_number%e5%87%bd%e6%95%b8-gRtPQbsytS\">\u4f7f\u7528ROW_NUMBER()\u51fd\u6578<\/h2>\n<p>\u53e6\u4e00\u7a2e\u5be6\u73fe\u5206\u9801\u7684\u65b9\u5f0f\u662f\u4f7f\u7528<code>ROW_NUMBER()<\/code>\u51fd\u6578\u3002\u9019\u500b\u51fd\u6578\u53ef\u4ee5\u70ba\u67e5\u8a62\u7d50\u679c\u4e2d\u7684\u6bcf\u4e00\u884c\u5206\u914d\u4e00\u500b\u552f\u4e00\u7684\u884c\u865f\uff0c\u7136\u5f8c\u60a8\u53ef\u4ee5\u6839\u64da\u884c\u865f\u9032\u884c\u7be9\u9078\u3002<\/p>\n<pre><code>WITH NumberedRows AS (\n    SELECT *, ROW_NUMBER() OVER (ORDER BY your_column) AS RowNum\n    FROM your_table\n)\nSELECT * FROM NumberedRows\nWHERE RowNum BETWEEN 11 AND 20;<\/code><\/pre>\n<p>\u5728\u9019\u500b\u4f8b\u5b50\u4e2d\uff0c\u67e5\u8a62\u5c07\u8fd4\u56de\u884c\u865f\u572811\u523020\u4e4b\u9593\u7684\u6578\u64da\uff0c\u9019\u6a23\u60a8\u5c31\u53ef\u4ee5\u5be6\u73fe\u5206\u9801\u6548\u679c\u3002<\/p>\n<h2 id=\"%e8%80%83%e6%85%ae%e7%b4%a2%e5%bc%95%e7%9a%84%e4%bd%bf%e7%94%a8-gRtPQbsytS\">\u8003\u616e\u7d22\u5f15\u7684\u4f7f\u7528<\/h2>\n<p>\u5728\u9032\u884c\u5206\u9801\u67e5\u8a62\u6642\uff0c\u7d22\u5f15\u7684\u4f7f\u7528\u81f3\u95dc\u91cd\u8981\u3002\u9069\u7576\u7684\u7d22\u5f15\u53ef\u4ee5\u986f\u8457\u63d0\u9ad8\u67e5\u8a62\u6027\u80fd\u3002\u78ba\u4fdd\u5728\u7528\u65bc\u6392\u5e8f\u548c\u904e\u6ffe\u7684\u5217\u4e0a\u5275\u5efa\u7d22\u5f15\uff0c\u4ee5\u4fbfDB2\u80fd\u5920\u66f4\u5feb\u5730\u5b9a\u4f4d\u6240\u9700\u7684\u6578\u64da\u3002<\/p>\n<h2 id=\"%e5%84%aa%e5%8c%96%e6%9f%a5%e8%a9%a2%e6%80%a7%e8%83%bd-gRtPQbsytS\">\u512a\u5316\u67e5\u8a62\u6027\u80fd<\/h2>\n<p>\u9664\u4e86\u4f7f\u7528\u5206\u9801\u6280\u5de7\u5916\uff0c\u9084\u6709\u5176\u4ed6\u4e00\u4e9b\u65b9\u6cd5\u53ef\u4ee5\u512a\u5316DB2\u67e5\u8a62\u6027\u80fd\uff1a<\/p>\n<ul>\n<li><strong>\u907f\u514dSELECT *<\/strong>\uff1a\u53ea\u9078\u64c7\u60a8\u9700\u8981\u7684\u5217\uff0c\u9019\u6a23\u53ef\u4ee5\u6e1b\u5c11\u6578\u64da\u50b3\u8f38\u91cf\u3002<\/li>\n<li><strong>\u4f7f\u7528\u5408\u9069\u7684WHERE\u689d\u4ef6<\/strong>\uff1a\u78ba\u4fdd\u60a8\u7684\u67e5\u8a62\u689d\u4ef6\u80fd\u5920\u6709\u6548\u5730\u904e\u6ffe\u6578\u64da\u3002<\/li>\n<li><strong>\u5b9a\u671f\u66f4\u65b0\u7d71\u8a08\u4fe1\u606f<\/strong>\uff1aDB2\u4f7f\u7528\u7d71\u8a08\u4fe1\u606f\u4f86\u751f\u6210\u6700\u4f73\u7684\u67e5\u8a62\u8a08\u5283\uff0c\u5b9a\u671f\u66f4\u65b0\u9019\u4e9b\u4fe1\u606f\u53ef\u4ee5\u63d0\u9ad8\u6027\u80fd\u3002<\/li>\n<\/ul>\n<h2 id=\"%e7%b5%90%e8%ab%96-gRtPQbsytS\">\u7d50\u8ad6<\/h2>\n<p>DB2\u6578\u64da\u5eab\u7684\u5206\u9801\u6280\u5de7\u53ef\u4ee5\u986f\u8457\u63d0\u9ad8\u67e5\u8a62\u6548\u7387\uff0c\u7279\u5225\u662f\u5728\u8655\u7406\u5927\u91cf\u6578\u64da\u6642\u3002\u901a\u904e\u4f7f\u7528<code>OFFSET<\/code>\u548c<code>FETCH<\/code>\u5b50\u53e5\u3001<code>ROW_NUMBER()<\/code>\u51fd\u6578\u4ee5\u53ca\u9069\u7576\u7684\u7d22\u5f15\uff0c\u60a8\u53ef\u4ee5\u512a\u5316\u6578\u64da\u67e5\u8a62\u904e\u7a0b\uff0c\u63d0\u5347\u6574\u9ad4\u6027\u80fd\u3002<\/p>\n<p>\u5982\u679c\u60a8\u6b63\u5728\u5c0b\u627e\u9ad8\u6548\u7684\u6578\u64da\u5eab\u89e3\u6c7a\u65b9\u6848\uff0c\u8003\u616e\u4f7f\u7528<a href=\"https:\/\/server.hk\">\u9999\u6e2fVPS<\/a>\u4f86\u6258\u7ba1\u60a8\u7684DB2\u6578\u64da\u5eab\uff0c\u9019\u5c07\u70ba\u60a8\u7684\u696d\u52d9\u63d0\u4f9b\u7a69\u5b9a\u548c\u53ef\u9760\u7684\u652f\u6301\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u638c\u63e1DB2\u6578\u64da\u5eab\u5206\u9801\u6280\u5de7\uff0c\u63d0\u5347\u67e5\u8a62\u6548\u7387\uff0c\u8f15\u9b06\u7ba1\u7406\u6578\u64da\uff0c\u5be6\u73fe\u66f4\u5feb\u901f\u7684\u6578\u64da\u6aa2\u7d22\u8207\u5206\u6790\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-60731","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/60731","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=60731"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/60731\/revisions"}],"predecessor-version":[{"id":60732,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/60731\/revisions\/60732"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=60731"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=60731"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=60731"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}