{"id":193433,"date":"2024-11-12T22:08:21","date_gmt":"2024-11-12T14:08:21","guid":{"rendered":"https:\/\/server.hk\/cnblog\/193433\/"},"modified":"2024-11-12T22:08:22","modified_gmt":"2024-11-12T14:08:22","slug":"%e5%ad%b8%e7%bf%92db2%e6%95%b8%e6%93%9a%e5%ba%ab%e6%99%82%ef%bc%8c%e4%bd%a0%e8%a6%81%e6%8e%8c%e6%8f%a1%e7%9a%84%e8%aa%9e%e5%8f%a5%e6%9c%89%e5%93%aa%e4%ba%9b%ef%bc%9f","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/193433\/","title":{"rendered":"\u5b78\u7fd2DB2\u6578\u64da\u5eab\u6642\uff0c\u4f60\u8981\u638c\u63e1\u7684\u8a9e\u53e5\u6709\u54ea\u4e9b\uff1f"},"content":{"rendered":"<h1 id=\"%e5%ad%b8%e7%bf%92db2%e6%95%b8%e6%93%9a%e5%ba%ab%e6%99%82%ef%bc%8c%e4%bd%a0%e8%a6%81%e6%8e%8c%e6%8f%a1%e7%9a%84%e8%aa%9e%e5%8f%a5%e6%9c%89%e5%93%aa%e4%ba%9b%ef%bc%9f-mvcCbnfrwC\">\u5b78\u7fd2DB2\u6578\u64da\u5eab\u6642\uff0c\u4f60\u8981\u638c\u63e1\u7684\u8a9e\u53e5\u6709\u54ea\u4e9b\uff1f<\/h1>\n<p>DB2\u662f\u4e00\u6b3e\u7531IBM\u958b\u767c\u7684\u95dc\u4fc2\u578b\u6578\u64da\u5eab\u7ba1\u7406\u7cfb\u7d71\uff0c\u5ee3\u6cdb\u61c9\u7528\u65bc\u4f01\u696d\u7d1a\u61c9\u7528\u4e2d\u3002\u5c0d\u65bc\u5e0c\u671b\u6df1\u5165\u4e86\u89e3DB2\u7684\u958b\u767c\u8005\u548c\u6578\u64da\u5eab\u7ba1\u7406\u54e1\u4f86\u8aaa\uff0c\u638c\u63e1\u57fa\u672c\u7684SQL\u8a9e\u53e5\u662f\u81f3\u95dc\u91cd\u8981\u7684\u3002\u672c\u6587\u5c07\u4ecb\u7d39\u5b78\u7fd2DB2\u6578\u64da\u5eab\u6642\u5fc5\u9808\u638c\u63e1\u7684\u5e7e\u7a2e\u57fa\u672c\u8a9e\u53e5\u3002<\/p>\n<h2 id=\"1-%e6%95%b8%e6%93%9a%e5%ae%9a%e7%be%a9%e8%aa%9e%e8%a8%80%ef%bc%88ddl%ef%bc%89-mvcCbnfrwC\">1. \u6578\u64da\u5b9a\u7fa9\u8a9e\u8a00\uff08DDL\uff09<\/h2>\n<p>\u6578\u64da\u5b9a\u7fa9\u8a9e\u8a00\u7528\u65bc\u5b9a\u7fa9\u6578\u64da\u5eab\u7d50\u69cb\uff0c\u5305\u62ec\u5275\u5efa\u3001\u4fee\u6539\u548c\u522a\u9664\u6578\u64da\u8868\u53ca\u5176\u4ed6\u6578\u64da\u5eab\u5c0d\u8c61\u3002\u4ee5\u4e0b\u662f\u4e00\u4e9b\u5e38\u7528\u7684DDL\u8a9e\u53e5\uff1a<\/p>\n<ul>\n<li><code>CREATE TABLE<\/code>\uff1a\u7528\u65bc\u5275\u5efa\u65b0\u8868\u3002<\/li>\n<li><code>ALTER TABLE<\/code>\uff1a\u7528\u65bc\u4fee\u6539\u73fe\u6709\u8868\u7684\u7d50\u69cb\u3002<\/li>\n<li><code>DROP TABLE<\/code>\uff1a\u7528\u65bc\u522a\u9664\u8868\u53ca\u5176\u6578\u64da\u3002<\/li>\n<\/ul>\n<p>\u4f8b\u5982\uff0c\u5275\u5efa\u4e00\u500b\u540d\u70ba\u201c\u5b78\u751f\u201d\u7684\u8868\uff1a<\/p>\n<pre><code>CREATE TABLE \u5b78\u751f (\n    \u5b78\u865f INT PRIMARY KEY,\n    \u59d3\u540d VARCHAR(100),\n    \u5e74\u9f61 INT\n);<\/code><\/pre>\n<h2 id=\"2-%e6%95%b8%e6%93%9a%e6%93%8d%e4%bd%9c%e8%aa%9e%e8%a8%80%ef%bc%88dml%ef%bc%89-mvcCbnfrwC\">2. \u6578\u64da\u64cd\u4f5c\u8a9e\u8a00\uff08DML\uff09<\/h2>\n<p>\u6578\u64da\u64cd\u4f5c\u8a9e\u8a00\u7528\u65bc\u5c0d\u6578\u64da\u9032\u884c\u67e5\u8a62\u548c\u4fee\u6539\u3002\u4ee5\u4e0b\u662f\u4e00\u4e9b\u5e38\u7528\u7684DML\u8a9e\u53e5\uff1a<\/p>\n<ul>\n<li><code>SELECT<\/code>\uff1a\u7528\u65bc\u67e5\u8a62\u6578\u64da\u3002<\/li>\n<li><code>INSERT<\/code>\uff1a\u7528\u65bc\u63d2\u5165\u65b0\u6578\u64da\u3002<\/li>\n<li><code>UPDATE<\/code>\uff1a\u7528\u65bc\u66f4\u65b0\u73fe\u6709\u6578\u64da\u3002<\/li>\n<li><code>DELETE<\/code>\uff1a\u7528\u65bc\u522a\u9664\u6578\u64da\u3002<\/li>\n<\/ul>\n<p>\u4f8b\u5982\uff0c\u63d2\u5165\u4e00\u689d\u65b0\u5b78\u751f\u8a18\u9304\uff1a<\/p>\n<pre><code>INSERT INTO \u5b78\u751f (\u5b78\u865f, \u59d3\u540d, \u5e74\u9f61) VALUES (1, '\u5f35\u4e09', 20);<\/code><\/pre>\n<h2 id=\"3-%e6%95%b8%e6%93%9a%e6%9f%a5%e8%a9%a2%e8%aa%9e%e5%8f%a5-mvcCbnfrwC\">3. \u6578\u64da\u67e5\u8a62\u8a9e\u53e5<\/h2>\n<p>\u67e5\u8a62\u6578\u64da\u662fDB2\u4e2d\u6700\u5e38\u898b\u7684\u64cd\u4f5c\u4e4b\u4e00\u3002\u4f7f\u7528<code>SELECT<\/code>\u8a9e\u53e5\u53ef\u4ee5\u5f9e\u6578\u64da\u8868\u4e2d\u6aa2\u7d22\u6578\u64da\u3002\u4ee5\u4e0b\u662f\u4e00\u4e9b\u67e5\u8a62\u7684\u793a\u4f8b\uff1a<\/p>\n<ul>\n<li>\u67e5\u8a62\u6240\u6709\u5b78\u751f\u7684\u59d3\u540d\u548c\u5e74\u9f61\uff1a<\/li>\n<\/ul>\n<pre><code>SELECT \u59d3\u540d, \u5e74\u9f61 FROM \u5b78\u751f;<\/code><\/pre>\n<ul>\n<li>\u67e5\u8a62\u5e74\u9f61\u5927\u65bc18\u7684\u5b78\u751f\uff1a<\/li>\n<\/ul>\n<pre><code>SELECT * FROM \u5b78\u751f WHERE \u5e74\u9f61 &gt; 18;<\/code><\/pre>\n<h2 id=\"4-%e6%95%b8%e6%93%9a%e6%8e%a7%e5%88%b6%e8%aa%9e%e8%a8%80%ef%bc%88dcl%ef%bc%89-mvcCbnfrwC\">4. \u6578\u64da\u63a7\u5236\u8a9e\u8a00\uff08DCL\uff09<\/h2>\n<p>\u6578\u64da\u63a7\u5236\u8a9e\u8a00\u7528\u65bc\u63a7\u5236\u5c0d\u6578\u64da\u7684\u8a2a\u554f\u6b0a\u9650\u3002\u5e38\u7528\u7684DCL\u8a9e\u53e5\u5305\u62ec\uff1a<\/p>\n<ul>\n<li><code>GRANT<\/code>\uff1a\u6388\u4e88\u7528\u6236\u6b0a\u9650\u3002<\/li>\n<li><code>REVOKE<\/code>\uff1a\u64a4\u92b7\u7528\u6236\u6b0a\u9650\u3002<\/li>\n<\/ul>\n<p>\u4f8b\u5982\uff0c\u6388\u4e88\u7528\u6236\u5c0d\u201c\u5b78\u751f\u201d\u8868\u7684\u67e5\u8a62\u6b0a\u9650\uff1a<\/p>\n<pre><code>GRANT SELECT ON \u5b78\u751f TO \u7528\u6236\u540d;<\/code><\/pre>\n<h2 id=\"5-%e4%ba%8b%e5%8b%99%e6%8e%a7%e5%88%b6%e8%aa%9e%e8%a8%80%ef%bc%88tcl%ef%bc%89-mvcCbnfrwC\">5. \u4e8b\u52d9\u63a7\u5236\u8a9e\u8a00\uff08TCL\uff09<\/h2>\n<p>\u4e8b\u52d9\u63a7\u5236\u8a9e\u8a00\u7528\u65bc\u7ba1\u7406\u4e8b\u52d9\u7684\u57f7\u884c\u3002\u5e38\u7528\u7684TCL\u8a9e\u53e5\u5305\u62ec\uff1a<\/p>\n<ul>\n<li><code>COMMIT<\/code>\uff1a\u63d0\u4ea4\u4e8b\u52d9\u3002<\/li>\n<li><code>ROLLBACK<\/code>\uff1a\u56de\u6efe\u4e8b\u52d9\u3002<\/li>\n<\/ul>\n<p>\u4f8b\u5982\uff0c\u5728\u63d2\u5165\u6578\u64da\u5f8c\u63d0\u4ea4\u4e8b\u52d9\uff1a<\/p>\n<pre><code>INSERT INTO \u5b78\u751f (\u5b78\u865f, \u59d3\u540d, \u5e74\u9f61) VALUES (2, '\u674e\u56db', 22);\nCOMMIT;<\/code><\/pre>\n<h2 id=\"%e7%b8%bd%e7%b5%90-mvcCbnfrwC\">\u7e3d\u7d50<\/h2>\n<p>\u5b78\u7fd2DB2\u6578\u64da\u5eab\u7684\u904e\u7a0b\u4e2d\uff0c\u638c\u63e1\u57fa\u672c\u7684SQL\u8a9e\u53e5\u662f\u975e\u5e38\u91cd\u8981\u7684\u3002\u5f9e\u6578\u64da\u5b9a\u7fa9\u8a9e\u8a00\u5230\u6578\u64da\u64cd\u4f5c\u8a9e\u8a00\uff0c\u518d\u5230\u6578\u64da\u63a7\u5236\u8a9e\u8a00\u548c\u4e8b\u52d9\u63a7\u5236\u8a9e\u8a00\uff0c\u9019\u4e9b\u8a9e\u53e5\u69cb\u6210\u4e86DB2\u7684\u6838\u5fc3\u64cd\u4f5c\u3002\u96a8\u8457\u5c0d\u9019\u4e9b\u8a9e\u53e5\u7684\u6df1\u5165\u7406\u89e3\uff0c\u60a8\u5c07\u80fd\u5920\u66f4\u6709\u6548\u5730\u7ba1\u7406\u548c\u64cd\u4f5c\u6578\u64da\u5eab\u3002<\/p>\n<p>\u5982\u679c\u60a8\u5c0d\u65bc\u5982\u4f55\u5728\u96f2\u74b0\u5883\u4e2d\u904b\u884cDB2\u6578\u64da\u5eab\u6709\u8208\u8da3\uff0c\u6216\u8005\u9700\u8981\u9ad8\u6548\u7684<a href=\"https:\/\/server.hk\">\u9999\u6e2fVPS<\/a>\u89e3\u6c7a\u65b9\u6848\uff0c\u8acb\u96a8\u6642\u8a2a\u554f\u6211\u5011\u7684\u7db2\u7ad9\u4ee5\u7372\u53d6\u66f4\u591a\u4fe1\u606f\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u638c\u63e1DB2\u6578\u64da\u5eab\u7684\u95dc\u9375\u8a9e\u53e5\uff0c\u5305\u62ecSELECT\u3001INSERT\u3001UPDATE\u3001DELETE\u7b49\uff0c\u52a9\u4f60\u9ad8\u6548\u7ba1\u7406\u548c\u67e5\u8a62\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-193433","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/193433","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=193433"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/193433\/revisions"}],"predecessor-version":[{"id":193434,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/193433\/revisions\/193434"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=193433"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=193433"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=193433"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}