{"id":173823,"date":"2024-11-07T20:14:22","date_gmt":"2024-11-07T12:14:22","guid":{"rendered":"https:\/\/server.hk\/cnblog\/173823\/"},"modified":"2024-11-07T20:14:23","modified_gmt":"2024-11-07T12:14:23","slug":"%e5%a6%82%e4%bd%95%e8%a7%a3%e6%b1%badb2%e6%95%b8%e6%93%9a%e5%ba%ab%e5%88%a5%e5%90%8d42601%e9%8c%af%e8%aa%a4%ef%bc%9f-db2-%e6%95%b8%e6%93%9a%e5%ba%ab%e5%88%a5%e5%90%8d-42601","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/173823\/","title":{"rendered":"\u5982\u4f55\u89e3\u6c7adb2\u6578\u64da\u5eab\u5225\u540d42601\u932f\u8aa4\uff1f (db2 \u6578\u64da\u5eab\u5225\u540d 42601)"},"content":{"rendered":"<h1 id=\"%e5%a6%82%e4%bd%95%e8%a7%a3%e6%b1%badb2%e6%95%b8%e6%93%9a%e5%ba%ab%e5%88%a5%e5%90%8d42601%e9%8c%af%e8%aa%a4%ef%bc%9f-mCrdmHNWcM\">\u5982\u4f55\u89e3\u6c7aDB2\u6578\u64da\u5eab\u5225\u540d42601\u932f\u8aa4\uff1f<\/h1>\n<p>\u5728\u4f7f\u7528IBM DB2\u6578\u64da\u5eab\u6642\uff0c\u958b\u767c\u8005\u548c\u6578\u64da\u5eab\u7ba1\u7406\u54e1\u53ef\u80fd\u6703\u9047\u5230\u5404\u7a2e\u932f\u8aa4\uff0c\u5176\u4e2d\u4e4b\u4e00\u5c31\u662f42601\u932f\u8aa4\u3002\u9019\u500b\u932f\u8aa4\u901a\u5e38\u8207SQL\u8a9e\u6cd5\u6709\u95dc\uff0c\u8868\u793a\u5728\u57f7\u884cSQL\u67e5\u8a62\u6642\u51fa\u73fe\u4e86\u8a9e\u6cd5\u932f\u8aa4\u3002\u672c\u6587\u5c07\u6df1\u5165\u63a2\u8a0eDB2\u6578\u64da\u5eab\u5225\u540d42601\u932f\u8aa4\u7684\u539f\u56e0\u53ca\u5176\u89e3\u6c7a\u65b9\u6848\u3002<\/p>\n<h2 id=\"db2%e6%95%b8%e6%93%9a%e5%ba%ab%e5%88%a5%e5%90%8d42601%e9%8c%af%e8%aa%a4%e7%9a%84%e5%8e%9f%e5%9b%a0-mCrdmHNWcM\">DB2\u6578\u64da\u5eab\u5225\u540d42601\u932f\u8aa4\u7684\u539f\u56e0<\/h2>\n<p>DB2\u6578\u64da\u5eab\u5225\u540d42601\u932f\u8aa4\u7684\u4e3b\u8981\u539f\u56e0\u901a\u5e38\u662f\u7531\u65bcSQL\u8a9e\u53e5\u7684\u8a9e\u6cd5\u4e0d\u6b63\u78ba\u3002\u4ee5\u4e0b\u662f\u4e00\u4e9b\u5e38\u898b\u7684\u539f\u56e0\uff1a<\/p>\n<ul>\n<li><strong>\u7f3a\u5c11\u95dc\u9375\u5b57\uff1a<\/strong>\u5728SQL\u67e5\u8a62\u4e2d\uff0c\u67d0\u4e9b\u95dc\u9375\u5b57\u53ef\u80fd\u88ab\u907a\u6f0f\uff0c\u4f8b\u5982SELECT\u3001FROM\u6216WHERE\u7b49\u3002<\/li>\n<li><strong>\u932f\u8aa4\u7684\u6a19\u8b58\u7b26\uff1a<\/strong>\u4f7f\u7528\u4e86\u4e0d\u6b63\u78ba\u7684\u8868\u540d\u6216\u5217\u540d\uff0c\u6216\u8005\u5728SQL\u8a9e\u53e5\u4e2d\u4f7f\u7528\u4e86\u4fdd\u7559\u5b57\u4f5c\u70ba\u6a19\u8b58\u7b26\u3002<\/li>\n<li><strong>\u4e0d\u6b63\u78ba\u7684\u62ec\u865f\u4f7f\u7528\uff1a<\/strong>\u5728\u67e5\u8a62\u4e2d\u4f7f\u7528\u4e86\u4e0d\u5339\u914d\u7684\u62ec\u865f\uff0c\u5c0e\u81f4\u8a9e\u6cd5\u932f\u8aa4\u3002<\/li>\n<li><strong>\u932f\u8aa4\u7684\u6578\u64da\u985e\u578b\uff1a<\/strong>\u5728\u67e5\u8a62\u4e2d\u4f7f\u7528\u4e86\u4e0d\u6b63\u78ba\u7684\u6578\u64da\u985e\u578b\uff0c\u7279\u5225\u662f\u5728\u9032\u884c\u6bd4\u8f03\u6642\u3002<\/li>\n<\/ul>\n<h2 id=\"%e5%a6%82%e4%bd%95%e8%a7%a3%e6%b1%badb2%e6%95%b8%e6%93%9a%e5%ba%ab%e5%88%a5%e5%90%8d42601%e9%8c%af%e8%aa%a4-mCrdmHNWcM\">\u5982\u4f55\u89e3\u6c7aDB2\u6578\u64da\u5eab\u5225\u540d42601\u932f\u8aa4<\/h2>\n<p>\u89e3\u6c7aDB2\u6578\u64da\u5eab\u5225\u540d42601\u932f\u8aa4\u7684\u7b2c\u4e00\u6b65\u662f\u4ed4\u7d30\u6aa2\u67e5SQL\u8a9e\u53e5\u3002\u4ee5\u4e0b\u662f\u4e00\u4e9b\u5177\u9ad4\u7684\u6b65\u9a5f\u548c\u5efa\u8b70\uff1a<\/p>\n<h3 id=\"1-%e6%aa%a2%e6%9f%a5sql%e8%aa%9e%e6%b3%95-mCrdmHNWcM\">1. \u6aa2\u67e5SQL\u8a9e\u6cd5<\/h3>\n<p>\u9996\u5148\uff0c\u6aa2\u67e5SQL\u8a9e\u53e5\u7684\u8a9e\u6cd5\u662f\u5426\u6b63\u78ba\u3002\u78ba\u4fdd\u6240\u6709\u7684\u95dc\u9375\u5b57\u90fd\u6b63\u78ba\u7121\u8aa4\uff0c\u4e26\u4e14\u6309\u7167\u6b63\u78ba\u7684\u9806\u5e8f\u6392\u5217\u3002\u4f8b\u5982\uff1a<\/p>\n<pre><code>SELECT column1, column2 FROM table_name WHERE condition;<\/code><\/pre>\n<h3 id=\"2-%e7%a2%ba%e8%aa%8d%e6%a8%99%e8%ad%98%e7%ac%a6%e7%9a%84%e6%ad%a3%e7%a2%ba%e6%80%a7-mCrdmHNWcM\">2. \u78ba\u8a8d\u6a19\u8b58\u7b26\u7684\u6b63\u78ba\u6027<\/h3>\n<p>\u6aa2\u67e5\u6240\u6709\u7684\u8868\u540d\u548c\u5217\u540d\u662f\u5426\u6b63\u78ba\uff0c\u4e26\u4e14\u6c92\u6709\u62fc\u5beb\u932f\u8aa4\u3002\u5982\u679c\u4f7f\u7528\u4e86\u4fdd\u7559\u5b57\uff0c\u5247\u9700\u8981\u7528\u96d9\u5f15\u865f\u5c07\u5176\u62ec\u8d77\u4f86\u3002\u4f8b\u5982\uff1a<\/p>\n<pre><code>SELECT \"select\", \"from\" FROM table_name;<\/code><\/pre>\n<h3 id=\"3-%e6%aa%a2%e6%9f%a5%e6%8b%ac%e8%99%9f%e7%9a%84%e4%bd%bf%e7%94%a8-mCrdmHNWcM\">3. \u6aa2\u67e5\u62ec\u865f\u7684\u4f7f\u7528<\/h3>\n<p>\u78ba\u4fdd\u6240\u6709\u7684\u62ec\u865f\u90fd\u6b63\u78ba\u914d\u5c0d\uff0c\u4e26\u4e14\u5728\u9700\u8981\u7684\u5730\u65b9\u4f7f\u7528\u3002\u4f8b\u5982\uff1a<\/p>\n<pre><code>SELECT column1 FROM (SELECT column1 FROM table_name) AS subquery;<\/code><\/pre>\n<h3 id=\"4-%e9%a9%97%e8%ad%89%e6%95%b8%e6%93%9a%e9%a1%9e%e5%9e%8b-mCrdmHNWcM\">4. \u9a57\u8b49\u6578\u64da\u985e\u578b<\/h3>\n<p>\u5728\u9032\u884c\u6bd4\u8f03\u6642\uff0c\u78ba\u4fdd\u4f7f\u7528\u7684\u6578\u64da\u985e\u578b\u662f\u6b63\u78ba\u7684\u3002\u4f8b\u5982\uff0c\u5982\u679c\u5728WHERE\u5b50\u53e5\u4e2d\u9032\u884c\u6bd4\u8f03\uff0c\u5247\u9700\u8981\u78ba\u4fdd\u5169\u908a\u7684\u6578\u64da\u985e\u578b\u4e00\u81f4\uff1a<\/p>\n<pre><code>SELECT * FROM table_name WHERE column1 = 'value';<\/code><\/pre>\n<h2 id=\"%e7%a4%ba%e4%be%8b-mCrdmHNWcM\">\u793a\u4f8b<\/h2>\n<p>\u4ee5\u4e0b\u662f\u4e00\u500b\u53ef\u80fd\u5c0e\u81f442601\u932f\u8aa4\u7684SQL\u67e5\u8a62\u793a\u4f8b\uff1a<\/p>\n<pre><code>SELECT name, age FROM users WHERE age &gt; 20 AND name = 'John';<\/code><\/pre>\n<p>\u5982\u679c\u5728\u9019\u500b\u67e5\u8a62\u4e2d\uff0c\u8868\u540d\u201cusers\u201d\u62fc\u5beb\u932f\u8aa4\uff0c\u5247\u6703\u5c0e\u81f442601\u932f\u8aa4\u3002\u6b63\u78ba\u7684\u67e5\u8a62\u61c9\u8a72\u662f\uff1a<\/p>\n<pre><code>SELECT name, age FROM users WHERE age &gt; 20 AND name = 'John';<\/code><\/pre>\n<h2 id=\"%e7%b8%bd%e7%b5%90-mCrdmHNWcM\">\u7e3d\u7d50<\/h2>\n<p>DB2\u6578\u64da\u5eab\u5225\u540d42601\u932f\u8aa4\u901a\u5e38\u662f\u7531\u65bcSQL\u8a9e\u6cd5\u4e0d\u6b63\u78ba\u5f15\u8d77\u7684\u3002\u901a\u904e\u4ed4\u7d30\u6aa2\u67e5SQL\u8a9e\u53e5\u7684\u8a9e\u6cd5\u3001\u6a19\u8b58\u7b26\u3001\u62ec\u865f\u548c\u6578\u64da\u985e\u578b\uff0c\u53ef\u4ee5\u6709\u6548\u5730\u89e3\u6c7a\u9019\u500b\u554f\u984c\u3002\u5c0d\u65bc\u9700\u8981\u7a69\u5b9a\u548c\u9ad8\u6548\u6578\u64da\u5eab\u89e3\u6c7a\u65b9\u6848\u7684\u7528\u6236\uff0c\u9078\u64c7\u5408\u9069\u7684 <a href=\"https:\/\/server.hk\">VPS<\/a> \u6216 <a href=\"https:\/\/server.hk\">\u9999\u6e2f\u4f3a\u670d\u5668<\/a> \u662f\u81f3\u95dc\u91cd\u8981\u7684\u3002\u4e86\u89e3\u66f4\u591a\u95dc\u65bc <a href=\"https:\/\/server.hk\">\u96f2\u4f3a\u670d\u5668<\/a> \u7684\u4fe1\u606f\uff0c\u8acb\u8a2a\u554f\u6211\u5011\u7684\u7db2\u7ad9\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u4e86\u89e3\u5982\u4f55\u89e3\u6c7aDB2\u6578\u64da\u5eab\u5225\u540d42601\u932f\u8aa4\uff0c\u63d0\u4f9b\u6709\u6548\u7684\u6392\u932f\u6b65\u9a5f\u548c\u89e3\u6c7a\u65b9\u6848\uff0c\u5e6b\u52a9\u60a8\u5feb\u901f\u6062\u5fa9\u6578\u64da\u5eab\u529f\u80fd\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-173823","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/173823","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=173823"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/173823\/revisions"}],"predecessor-version":[{"id":173824,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/173823\/revisions\/173824"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=173823"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=173823"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=173823"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}