{"id":179574,"date":"2024-11-09T02:57:18","date_gmt":"2024-11-08T18:57:18","guid":{"rendered":"https:\/\/server.hk\/cnblog\/179574\/"},"modified":"2024-11-09T02:57:19","modified_gmt":"2024-11-08T18:57:19","slug":"%e5%a6%82%e4%bd%95%e5%9c%a8-db2-%e4%b8%ad%e6%9f%a5%e8%a9%a2%e5%b7%b2%e6%9c%89%e6%95%b8%e6%93%9a%e5%ba%ab-db2-%e6%9f%a5%e8%a9%a2%e5%b7%b2%e6%9c%89%e6%95%b8%e6%93%9a%e5%ba%ab","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/179574\/","title":{"rendered":"\u5982\u4f55\u5728 DB2 \u4e2d\u67e5\u8a62\u5df2\u6709\u6578\u64da\u5eab (db2 \u67e5\u8a62\u5df2\u6709\u6578\u64da\u5eab)"},"content":{"rendered":"<h1 id=\"%e5%a6%82%e4%bd%95%e5%9c%a8-db2-%e4%b8%ad%e6%9f%a5%e8%a9%a2%e5%b7%b2%e6%9c%89%e6%95%b8%e6%93%9a%e5%ba%ab-vmCSqlPJkd\">\u5982\u4f55\u5728 DB2 \u4e2d\u67e5\u8a62\u5df2\u6709\u6578\u64da\u5eab<\/h1>\n<p>IBM \u7684 DB2 \u662f\u4e00\u6b3e\u529f\u80fd\u5f37\u5927\u7684\u95dc\u806f\u6578\u64da\u5eab\u7ba1\u7406\u7cfb\u7d71\uff0c\u5ee3\u6cdb\u61c9\u7528\u65bc\u4f01\u696d\u7d1a\u61c9\u7528\u4e2d\u3002\u7121\u8ad6\u662f\u6578\u64da\u5206\u6790\u3001\u696d\u52d9\u5831\u544a\u9084\u662f\u65e5\u5e38\u64cd\u4f5c\uff0cDB2 \u90fd\u80fd\u63d0\u4f9b\u7a69\u5b9a\u7684\u652f\u6301\u3002\u5728\u4f7f\u7528 DB2 \u9032\u884c\u6578\u64da\u67e5\u8a62\u6642\uff0c\u4e86\u89e3\u5982\u4f55\u67e5\u8a62\u5df2\u6709\u7684\u6578\u64da\u5eab\u662f\u81f3\u95dc\u91cd\u8981\u7684\u3002\u672c\u6587\u5c07\u4ecb\u7d39\u5728 DB2 \u4e2d\u67e5\u8a62\u5df2\u6709\u6578\u64da\u5eab\u7684\u57fa\u672c\u6b65\u9a5f\u548c\u6280\u5de7\u3002<\/p>\n<h2 id=\"%e9%80%a3%e6%8e%a5%e5%88%b0-db2-%e6%95%b8%e6%93%9a%e5%ba%ab-vmCSqlPJkd\">\u9023\u63a5\u5230 DB2 \u6578\u64da\u5eab<\/h2>\n<p>\u5728\u67e5\u8a62\u6578\u64da\u5eab\u4e4b\u524d\uff0c\u9996\u5148\u9700\u8981\u9023\u63a5\u5230 DB2 \u6578\u64da\u5eab\u3002\u9019\u53ef\u4ee5\u901a\u904e\u547d\u4ee4\u884c\u754c\u9762\u6216\u4f7f\u7528\u61c9\u7528\u7a0b\u5e8f\u4f86\u5b8c\u6210\u3002\u4ee5\u4e0b\u662f\u4f7f\u7528\u547d\u4ee4\u884c\u9023\u63a5\u5230 DB2 \u6578\u64da\u5eab\u7684\u57fa\u672c\u6b65\u9a5f\uff1a<\/p>\n<pre><code>db2 connect to  user  using <\/code><\/pre>\n<p>\u4f8b\u5982\uff0c\u5982\u679c\u6578\u64da\u5eab\u540d\u7a31\u70ba &#8220;SAMPLE&#8221;\uff0c\u7528\u6236\u540d\u70ba &#8220;DBUSER&#8221;\uff0c\u5bc6\u78bc\u70ba &#8220;PASSWORD&#8221;\uff0c\u5247\u547d\u4ee4\u5982\u4e0b\uff1a<\/p>\n<pre><code>db2 connect to SAMPLE user DBUSER using PASSWORD<\/code><\/pre>\n<h2 id=\"%e6%9f%a5%e8%a9%a2%e5%b7%b2%e6%9c%89%e6%95%b8%e6%93%9a%e5%ba%ab%e4%b8%ad%e7%9a%84%e8%a1%a8-vmCSqlPJkd\">\u67e5\u8a62\u5df2\u6709\u6578\u64da\u5eab\u4e2d\u7684\u8868<\/h2>\n<p>\u9023\u63a5\u6210\u529f\u5f8c\uff0c\u53ef\u4ee5\u67e5\u8a62\u6578\u64da\u5eab\u4e2d\u7684\u8868\u3002\u4f7f\u7528\u4ee5\u4e0b\u547d\u4ee4\u53ef\u4ee5\u5217\u51fa\u7576\u524d\u6578\u64da\u5eab\u4e2d\u7684\u6240\u6709\u8868\uff1a<\/p>\n<pre><code>db2 list tables<\/code><\/pre>\n<p>\u9019\u5c07\u986f\u793a\u6240\u6709\u53ef\u7528\u7684\u8868\u53ca\u5176\u76f8\u95dc\u4fe1\u606f\u3002\u82e5\u8981\u67e5\u8a62\u7279\u5b9a\u8868\u7684\u7d50\u69cb\uff0c\u53ef\u4ee5\u4f7f\u7528\uff1a<\/p>\n<pre><code>db2 describe table <\/code><\/pre>\n<h2 id=\"%e5%9f%b7%e8%a1%8c%e6%9f%a5%e8%a9%a2-vmCSqlPJkd\">\u57f7\u884c\u67e5\u8a62<\/h2>\n<p>\u5728\u4e86\u89e3\u4e86\u6578\u64da\u5eab\u4e2d\u7684\u8868\u7d50\u69cb\u5f8c\uff0c\u53ef\u4ee5\u958b\u59cb\u57f7\u884c\u67e5\u8a62\u3002DB2 \u652f\u6301 SQL \u8a9e\u8a00\uff0c\u4ee5\u4e0b\u662f\u4e00\u4e9b\u57fa\u672c\u7684\u67e5\u8a62\u793a\u4f8b\uff1a<\/p>\n<h3 id=\"%e9%81%b8%e6%93%87%e6%89%80%e6%9c%89%e5%88%97-vmCSqlPJkd\">\u9078\u64c7\u6240\u6709\u5217<\/h3>\n<pre><code>SELECT * FROM ;<\/code><\/pre>\n<h3 id=\"%e9%81%b8%e6%93%87%e7%89%b9%e5%ae%9a%e5%88%97-vmCSqlPJkd\">\u9078\u64c7\u7279\u5b9a\u5217<\/h3>\n<pre><code>SELECT ,  FROM ;<\/code><\/pre>\n<h3 id=\"%e4%bd%bf%e7%94%a8%e6%a2%9d%e4%bb%b6%e6%9f%a5%e8%a9%a2-vmCSqlPJkd\">\u4f7f\u7528\u689d\u4ef6\u67e5\u8a62<\/h3>\n<pre><code>SELECT * FROM  WHERE ;<\/code><\/pre>\n<p>\u4f8b\u5982\uff0c\u5982\u679c\u8981\u5f9e &#8220;EMPLOYEES&#8221; \u8868\u4e2d\u67e5\u8a62\u6240\u6709\u5e74\u9f61\u5927\u65bc 30 \u7684\u54e1\u5de5\uff0c\u53ef\u4ee5\u4f7f\u7528\uff1a<\/p>\n<pre><code>SELECT * FROM EMPLOYEES WHERE AGE &gt; 30;<\/code><\/pre>\n<h2 id=\"%e6%8e%92%e5%ba%8f%e5%92%8c%e9%99%90%e5%88%b6%e7%b5%90%e6%9e%9c-vmCSqlPJkd\">\u6392\u5e8f\u548c\u9650\u5236\u7d50\u679c<\/h2>\n<p>\u5728\u67e5\u8a62\u7d50\u679c\u4e2d\uff0c\u53ef\u80fd\u9700\u8981\u5c0d\u7d50\u679c\u9032\u884c\u6392\u5e8f\u6216\u9650\u5236\u8fd4\u56de\u7684\u884c\u6578\u3002\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u8a9e\u6cd5\uff1a<\/p>\n<h3 id=\"%e6%8e%92%e5%ba%8f%e7%b5%90%e6%9e%9c-vmCSqlPJkd\">\u6392\u5e8f\u7d50\u679c<\/h3>\n<pre><code>SELECT * FROM  ORDER BY  ASC|DESC;<\/code><\/pre>\n<h3 id=\"%e9%99%90%e5%88%b6%e8%bf%94%e5%9b%9e%e8%a1%8c%e6%95%b8-vmCSqlPJkd\">\u9650\u5236\u8fd4\u56de\u884c\u6578<\/h3>\n<pre><code>SELECT * FROM  FETCH FIRST  ROWS ONLY;<\/code><\/pre>\n<p>\u4f8b\u5982\uff0c\u82e5\u8981\u67e5\u8a62 &#8220;EMPLOYEES&#8221; \u8868\u4e2d\u5e74\u9f61\u5927\u65bc 30 \u7684\u524d 5 \u540d\u54e1\u5de5\uff0c\u4e26\u6309\u5e74\u9f61\u964d\u5e8f\u6392\u5217\uff0c\u53ef\u4ee5\u4f7f\u7528\uff1a<\/p>\n<pre><code>SELECT * FROM EMPLOYEES WHERE AGE &gt; 30 ORDER BY AGE DESC FETCH FIRST 5 ROWS ONLY;<\/code><\/pre>\n<h2 id=\"%e7%b5%90%e8%ab%96-vmCSqlPJkd\">\u7d50\u8ad6<\/h2>\n<p>\u5728 DB2 \u4e2d\u67e5\u8a62\u5df2\u6709\u6578\u64da\u5eab\u7684\u904e\u7a0b\u76f8\u5c0d\u7c21\u55ae\uff0c\u901a\u904e\u9023\u63a5\u6578\u64da\u5eab\u3001\u5217\u51fa\u8868\u3001\u57f7\u884c\u67e5\u8a62\u4ee5\u53ca\u5c0d\u7d50\u679c\u9032\u884c\u6392\u5e8f\u548c\u9650\u5236\uff0c\u53ef\u4ee5\u6709\u6548\u5730\u7372\u53d6\u6240\u9700\u7684\u6578\u64da\u3002\u638c\u63e1\u9019\u4e9b\u57fa\u672c\u64cd\u4f5c\u5f8c\uff0c\u60a8\u5c07\u80fd\u5920\u66f4\u9ad8\u6548\u5730\u4f7f\u7528 DB2 \u9032\u884c\u6578\u64da\u7ba1\u7406\u548c\u5206\u6790\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\u64cd\u4f5c\uff0cServer.HK \u63d0\u4f9b\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\u7684\u652f\u6301\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u5b78\u7fd2\u5982\u4f55\u5728 DB2 \u4e2d\u67e5\u8a62\u5df2\u6709\u6578\u64da\u5eab\uff0c\u638c\u63e1\u57fa\u672c\u6307\u4ee4\u548c\u6280\u5de7\uff0c\u8f15\u9b06\u7372\u53d6\u6240\u9700\u6578\u64da\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-179574","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/179574","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=179574"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/179574\/revisions"}],"predecessor-version":[{"id":179575,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/179574\/revisions\/179575"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=179574"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=179574"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=179574"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}