{"id":179570,"date":"2024-11-09T02:55:20","date_gmt":"2024-11-08T18:55:20","guid":{"rendered":"https:\/\/server.hk\/cnblog\/179570\/"},"modified":"2024-11-09T02:55:21","modified_gmt":"2024-11-08T18:55:21","slug":"%e5%a6%82%e4%bd%95%e5%9c%a8-db2-%e6%95%b8%e6%93%9a%e5%ba%ab%e4%b8%ad%e9%81%b8%e6%93%87%e6%95%b4%e8%a1%8c%e6%95%b8%e6%93%9a-db2-%e6%95%b8%e6%93%9a%e5%ba%ab%e6%80%8e%e9%ba%bc%e9%81%b8%e6%93%87%e6%95%b4","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/179570\/","title":{"rendered":"\u5982\u4f55\u5728 DB2 \u6578\u64da\u5eab\u4e2d\u9078\u64c7\u6574\u884c\u6578\u64da (db2 \u6578\u64da\u5eab\u600e\u9ebc\u9078\u64c7\u6574\u884c)"},"content":{"rendered":"<h1 id=\"%e5%a6%82%e4%bd%95%e5%9c%a8-db2-%e6%95%b8%e6%93%9a%e5%ba%ab%e4%b8%ad%e9%81%b8%e6%93%87%e6%95%b4%e8%a1%8c%e6%95%b8%e6%93%9a-uTDzMFallT\">\u5982\u4f55\u5728 DB2 \u6578\u64da\u5eab\u4e2d\u9078\u64c7\u6574\u884c\u6578\u64da<\/h1>\n<p>\u5728\u6578\u64da\u5eab\u7ba1\u7406\u7cfb\u7d71\u4e2d\uff0c\u9078\u64c7\u6574\u884c\u6578\u64da\u662f\u4e00\u500b\u57fa\u672c\u800c\u91cd\u8981\u7684\u64cd\u4f5c\u3002\u5c0d\u65bc\u4f7f\u7528 IBM DB2 \u6578\u64da\u5eab\u7684\u958b\u767c\u8005\u548c\u6578\u64da\u5206\u6790\u5e2b\u4f86\u8aaa\uff0c\u4e86\u89e3\u5982\u4f55\u6709\u6548\u5730\u9078\u64c7\u6574\u884c\u6578\u64da\u662f\u81f3\u95dc\u91cd\u8981\u7684\u3002\u672c\u6587\u5c07\u6df1\u5165\u63a2\u8a0e\u5728 DB2 \u6578\u64da\u5eab\u4e2d\u9078\u64c7\u6574\u884c\u6578\u64da\u7684\u65b9\u6cd5\uff0c\u4e26\u63d0\u4f9b\u76f8\u95dc\u7684\u793a\u4f8b\u548c\u4ee3\u78bc\u7247\u6bb5\u3002<\/p>\n<h2 id=\"db2-%e6%95%b8%e6%93%9a%e5%ba%ab%e6%a6%82%e8%bf%b0-uTDzMFallT\">DB2 \u6578\u64da\u5eab\u6982\u8ff0<\/h2>\n<p>IBM DB2 \u662f\u4e00\u500b\u95dc\u4fc2\u578b\u6578\u64da\u5eab\u7ba1\u7406\u7cfb\u7d71\uff0c\u5ee3\u6cdb\u61c9\u7528\u65bc\u4f01\u696d\u7d1a\u61c9\u7528\u4e2d\u3002\u5b83\u652f\u6301 SQL \u8a9e\u8a00\uff0c\u4e26\u63d0\u4f9b\u4e86\u5f37\u5927\u7684\u6578\u64da\u8655\u7406\u80fd\u529b\u3002DB2 \u7684\u6578\u64da\u5b58\u5132\u7d50\u69cb\u4f7f\u5f97\u7528\u6236\u80fd\u5920\u9ad8\u6548\u5730\u67e5\u8a62\u548c\u7ba1\u7406\u6578\u64da\u3002<\/p>\n<h2 id=\"%e9%81%b8%e6%93%87%e6%95%b4%e8%a1%8c%e6%95%b8%e6%93%9a%e7%9a%84%e5%9f%ba%e6%9c%ac%e8%aa%9e%e6%b3%95-uTDzMFallT\">\u9078\u64c7\u6574\u884c\u6578\u64da\u7684\u57fa\u672c\u8a9e\u6cd5<\/h2>\n<p>\u5728 DB2 \u4e2d\uff0c\u9078\u64c7\u6574\u884c\u6578\u64da\u7684\u57fa\u672c SQL \u8a9e\u6cd5\u5982\u4e0b\uff1a<\/p>\n<pre><code>SELECT * FROM \u8868\u540d WHERE \u689d\u4ef6;<\/code><\/pre>\n<p>\u9019\u88e1\uff0c<code>*<\/code> \u8868\u793a\u9078\u64c7\u6240\u6709\u5217\uff0c\u800c <code>\u8868\u540d<\/code> \u662f\u4f60\u8981\u67e5\u8a62\u7684\u6578\u64da\u8868\u540d\u7a31\u3002<code>\u689d\u4ef6<\/code> \u662f\u7528\u4f86\u904e\u6ffe\u6578\u64da\u7684\u689d\u4ef6\uff0c\u53ef\u4ee5\u6839\u64da\u9700\u8981\u9032\u884c\u8a2d\u7f6e\u3002<\/p>\n<h2 id=\"%e7%a4%ba%e4%be%8b%ef%bc%9a%e9%81%b8%e6%93%87%e6%95%b4%e8%a1%8c%e6%95%b8%e6%93%9a-uTDzMFallT\">\u793a\u4f8b\uff1a\u9078\u64c7\u6574\u884c\u6578\u64da<\/h2>\n<p>\u5047\u8a2d\u6211\u5011\u6709\u4e00\u500b\u540d\u70ba <code>\u54e1\u5de5<\/code> \u7684\u8868\uff0c\u7d50\u69cb\u5982\u4e0b\uff1a<\/p>\n<ul>\n<li><code>\u54e1\u5de5ID<\/code> (\u6574\u6578)<\/li>\n<li><code>\u59d3\u540d<\/code> (\u5b57\u7b26\u4e32)<\/li>\n<li><code>\u90e8\u9580<\/code> (\u5b57\u7b26\u4e32)<\/li>\n<li><code>\u85aa\u8cc7<\/code> (\u6d6e\u9ede\u6578)<\/li>\n<\/ul>\n<p>\u5982\u679c\u6211\u5011\u60f3\u9078\u64c7\u6240\u6709\u54e1\u5de5\u7684\u6578\u64da\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b SQL \u67e5\u8a62\uff1a<\/p>\n<pre><code>SELECT * FROM \u54e1\u5de5;<\/code><\/pre>\n<p>\u9019\u5c07\u8fd4\u56de <code>\u54e1\u5de5<\/code> \u8868\u4e2d\u7684\u6240\u6709\u884c\u548c\u6240\u6709\u5217\u3002<\/p>\n<h2 id=\"%e4%bd%bf%e7%94%a8%e6%a2%9d%e4%bb%b6%e9%81%8e%e6%bf%be%e6%95%b8%e6%93%9a-uTDzMFallT\">\u4f7f\u7528\u689d\u4ef6\u904e\u6ffe\u6578\u64da<\/h2>\n<p>\u5728\u5be6\u969b\u61c9\u7528\u4e2d\uff0c\u6211\u5011\u901a\u5e38\u9700\u8981\u6839\u64da\u7279\u5b9a\u689d\u4ef6\u4f86\u9078\u64c7\u6574\u884c\u6578\u64da\u3002\u4f8b\u5982\uff0c\u5982\u679c\u6211\u5011\u53ea\u60f3\u67e5\u8a62\u90e8\u9580\u70ba\u300c\u6280\u8853\u90e8\u300d\u7684\u6240\u6709\u54e1\u5de5\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u67e5\u8a62\uff1a<\/p>\n<pre><code>SELECT * FROM \u54e1\u5de5 WHERE \u90e8\u9580 = '\u6280\u8853\u90e8';<\/code><\/pre>\n<p>\u9019\u6a23\u7684\u67e5\u8a62\u5c07\u8fd4\u56de\u6240\u6709\u5728\u300c\u6280\u8853\u90e8\u300d\u5de5\u4f5c\u7684\u54e1\u5de5\u7684\u5b8c\u6574\u4fe1\u606f\u3002<\/p>\n<h2 id=\"%e4%bd%bf%e7%94%a8%e6%8e%92%e5%ba%8f%e5%92%8c%e9%99%90%e5%88%b6-uTDzMFallT\">\u4f7f\u7528\u6392\u5e8f\u548c\u9650\u5236<\/h2>\n<p>\u5728\u9078\u64c7\u6574\u884c\u6578\u64da\u6642\uff0c\u53ef\u80fd\u9084\u9700\u8981\u5c0d\u7d50\u679c\u9032\u884c\u6392\u5e8f\u6216\u9650\u5236\u8fd4\u56de\u7684\u884c\u6578\u3002\u4ee5\u4e0b\u662f\u5982\u4f55\u4f7f\u7528 <code>ORDER BY<\/code> \u548c <code>FETCH FIRST<\/code> \u4f86\u5be6\u73fe\u9019\u4e00\u9ede\u7684\u793a\u4f8b\uff1a<\/p>\n<pre><code>SELECT * FROM \u54e1\u5de5 WHERE \u90e8\u9580 = '\u6280\u8853\u90e8' ORDER BY \u85aa\u8cc7 DESC FETCH FIRST 5 ROWS ONLY;<\/code><\/pre>\n<p>\u9019\u500b\u67e5\u8a62\u5c07\u8fd4\u56de\u85aa\u8cc7\u6700\u9ad8\u7684\u4e94\u540d\u6280\u8853\u90e8\u54e1\u5de5\u3002<\/p>\n<h2 id=\"%e7%b5%90%e8%ab%96-uTDzMFallT\">\u7d50\u8ad6<\/h2>\n<p>\u5728 DB2 \u6578\u64da\u5eab\u4e2d\u9078\u64c7\u6574\u884c\u6578\u64da\u662f\u4e00\u500b\u57fa\u672c\u7684\u64cd\u4f5c\uff0c\u4f46\u537b\u662f\u6578\u64da\u67e5\u8a62\u548c\u5206\u6790\u7684\u57fa\u790e\u3002\u901a\u904e\u4f7f\u7528\u9069\u7576\u7684 SQL \u8a9e\u6cd5\u548c\u689d\u4ef6\u904e\u6ffe\uff0c\u958b\u767c\u8005\u53ef\u4ee5\u9ad8\u6548\u5730\u7372\u53d6\u6240\u9700\u7684\u6578\u64da\u3002\u7121\u8ad6\u662f\u7c21\u55ae\u7684\u67e5\u8a62\u9084\u662f\u8907\u96dc\u7684\u6578\u64da\u5206\u6790\uff0c\u638c\u63e1\u9019\u4e9b\u57fa\u672c\u6280\u80fd\u90fd\u662f\u975e\u5e38\u91cd\u8981\u7684\u3002<\/p>\n<p>\u5982\u679c\u60a8\u6b63\u5728\u5c0b\u627e\u9ad8\u6548\u7684 <a href=\"https:\/\/server.hk\">VPS<\/a> \u89e3\u6c7a\u65b9\u6848\u4f86\u652f\u6301\u60a8\u7684\u6578\u64da\u5eab\u61c9\u7528\uff0cServer.HK \u63d0\u4f9b\u4e86\u591a\u7a2e\u9078\u64c7\uff0c\u6eff\u8db3\u4e0d\u540c\u9700\u6c42\u7684\u5ba2\u6236\u3002\u7121\u8ad6\u662f <a href=\"https:\/\/server.hk\">\u9999\u6e2fVPS<\/a> \u9084\u662f\u5176\u4ed6\u670d\u52d9\uff0c\u6211\u5011\u90fd\u80fd\u70ba\u60a8\u63d0\u4f9b\u7a69\u5b9a\u53ef\u9760\u7684\u652f\u6301\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u4e86\u89e3\u5982\u4f55\u5728 DB2 \u6578\u64da\u5eab\u4e2d\u9078\u64c7\u6574\u884c\u6578\u64da\uff0c\u638c\u63e1 SQL \u67e5\u8a62\u6280\u5de7\uff0c\u8f15\u9b06\u63d0\u53d6\u6240\u9700\u4fe1\u606f\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-179570","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/179570","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=179570"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/179570\/revisions"}],"predecessor-version":[{"id":179571,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/179570\/revisions\/179571"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=179570"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=179570"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=179570"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}