{"id":61017,"date":"2024-10-13T07:44:12","date_gmt":"2024-10-12T23:44:12","guid":{"rendered":"https:\/\/server.hk\/cnblog\/61017\/"},"modified":"2024-10-13T07:44:12","modified_gmt":"2024-10-12T23:44:12","slug":"db2%e8%87%aa%e5%8b%95%e5%a2%9e%e9%95%b7%e4%b8%bb%e9%8d%b5%e7%9a%84%e5%a6%82%e4%bd%95%e6%ad%a3%e7%a2%ba%e9%81%8b%e8%a1%8c%ef%bc%9f","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/61017\/","title":{"rendered":"DB2\u81ea\u52d5\u589e\u9577\u4e3b\u9375\u7684\u5982\u4f55\u6b63\u78ba\u904b\u884c\uff1f"},"content":{"rendered":"<h1 id=\"db2%e8%87%aa%e5%8b%95%e5%a2%9e%e9%95%b7%e4%b8%bb%e9%8d%b5%e7%9a%84%e5%a6%82%e4%bd%95%e6%ad%a3%e7%a2%ba%e9%81%8b%e8%a1%8c%ef%bc%9f-nyVMJTqxIb\">DB2\u81ea\u52d5\u589e\u9577\u4e3b\u9375\u7684\u5982\u4f55\u6b63\u78ba\u904b\u884c\uff1f<\/h1>\n<p>\u5728\u8cc7\u6599\u5eab\u7ba1\u7406\u7cfb\u7d71\u4e2d\uff0c\u81ea\u52d5\u589e\u9577\u4e3b\u9375\u662f\u4e00\u500b\u91cd\u8981\u7684\u529f\u80fd\uff0c\u7279\u5225\u662f\u5728IBM\u7684DB2\u8cc7\u6599\u5eab\u4e2d\u3002\u81ea\u52d5\u589e\u9577\u4e3b\u9375\u80fd\u5920\u7c21\u5316\u8cc7\u6599\u7684\u63d2\u5165\u904e\u7a0b\uff0c\u4e26\u78ba\u4fdd\u6bcf\u4e00\u689d\u8a18\u9304\u90fd\u6709\u552f\u4e00\u7684\u8b58\u5225\u78bc\u3002\u672c\u6587\u5c07\u63a2\u8a0eDB2\u81ea\u52d5\u589e\u9577\u4e3b\u9375\u7684\u904b\u4f5c\u539f\u7406\u3001\u8a2d\u7f6e\u65b9\u6cd5\u53ca\u5176\u6700\u4f73\u5be6\u8e10\u3002<\/p>\n<h2 id=\"%e8%87%aa%e5%8b%95%e5%a2%9e%e9%95%b7%e4%b8%bb%e9%8d%b5%e7%9a%84%e6%a6%82%e5%bf%b5-nyVMJTqxIb\">\u81ea\u52d5\u589e\u9577\u4e3b\u9375\u7684\u6982\u5ff5<\/h2>\n<p>\u81ea\u52d5\u589e\u9577\u4e3b\u9375\uff08Auto-increment Key\uff09\u662f\u4e00\u7a2e\u7279\u6b8a\u7684\u4e3b\u9375\uff0c\u7576\u65b0\u8a18\u9304\u88ab\u63d2\u5165\u5230\u8cc7\u6599\u8868\u4e2d\u6642\uff0c\u7cfb\u7d71\u6703\u81ea\u52d5\u751f\u6210\u4e00\u500b\u552f\u4e00\u7684\u6578\u503c\u3002\u9019\u500b\u6578\u503c\u901a\u5e38\u662f\u57fa\u65bc\u524d\u4e00\u689d\u8a18\u9304\u7684\u4e3b\u9375\u503c\u9032\u884c\u905e\u589e\u3002\u9019\u6a23\u7684\u8a2d\u8a08\u4e0d\u50c5\u80fd\u5920\u907f\u514d\u91cd\u8907\u7684\u4e3b\u9375\u503c\uff0c\u9084\u80fd\u63d0\u9ad8\u8cc7\u6599\u63d2\u5165\u7684\u6548\u7387\u3002<\/p>\n<h2 id=\"db2%e4%b8%ad%e8%87%aa%e5%8b%95%e5%a2%9e%e9%95%b7%e4%b8%bb%e9%8d%b5%e7%9a%84%e8%a8%ad%e7%bd%ae-nyVMJTqxIb\">DB2\u4e2d\u81ea\u52d5\u589e\u9577\u4e3b\u9375\u7684\u8a2d\u7f6e<\/h2>\n<p>\u5728DB2\u4e2d\uff0c\u8a2d\u7f6e\u81ea\u52d5\u589e\u9577\u4e3b\u9375\u901a\u5e38\u6d89\u53ca\u5230\u4f7f\u7528\u5e8f\u5217\uff08Sequence\uff09\u4f86\u751f\u6210\u552f\u4e00\u7684\u6578\u503c\u3002\u4ee5\u4e0b\u662f\u8a2d\u7f6e\u81ea\u52d5\u589e\u9577\u4e3b\u9375\u7684\u6b65\u9a5f\uff1a<\/p>\n<h3 id=\"1-%e5%89%b5%e5%bb%ba%e5%ba%8f%e5%88%97-nyVMJTqxIb\">1. \u5275\u5efa\u5e8f\u5217<\/h3>\n<pre><code>CREATE SEQUENCE my_sequence\n    START WITH 1\n    INCREMENT BY 1\n    NO CYCLE;<\/code><\/pre>\n<p>\u4e0a\u8ff0SQL\u8a9e\u53e5\u5275\u5efa\u4e86\u4e00\u500b\u540d\u70ba`my_sequence`\u7684\u5e8f\u5217\uff0c\u5f9e1\u958b\u59cb\uff0c\u6bcf\u6b21\u905e\u589e1\uff0c\u4e26\u4e14\u4e0d\u6703\u5faa\u74b0\u3002<\/p>\n<h3 id=\"2-%e5%89%b5%e5%bb%ba%e8%b3%87%e6%96%99%e8%a1%a8-nyVMJTqxIb\">2. \u5275\u5efa\u8cc7\u6599\u8868<\/h3>\n<pre><code>CREATE TABLE my_table (\n    id INT NOT NULL PRIMARY KEY,\n    name VARCHAR(100)\n);<\/code><\/pre>\n<p>\u5728\u9019\u88e1\uff0c\u6211\u5011\u5275\u5efa\u4e86\u4e00\u500b\u540d\u70ba`my_table`\u7684\u8cc7\u6599\u8868\uff0c\u5176\u4e2d`id`\u6b04\u4f4d\u5c07\u7528\u4f5c\u4e3b\u9375\u3002<\/p>\n<h3 id=\"3-%e4%bd%bf%e7%94%a8%e5%ba%8f%e5%88%97%e6%8f%92%e5%85%a5%e8%b3%87%e6%96%99-nyVMJTqxIb\">3. \u4f7f\u7528\u5e8f\u5217\u63d2\u5165\u8cc7\u6599<\/h3>\n<p>\u5728\u63d2\u5165\u8cc7\u6599\u6642\uff0c\u6211\u5011\u53ef\u4ee5\u4f7f\u7528\u5e8f\u5217\u4f86\u81ea\u52d5\u751f\u6210\u4e3b\u9375\u503c\uff1a<\/p>\n<pre><code>INSERT INTO my_table (id, name)\nVALUES (NEXT VALUE FOR my_sequence, 'John Doe');<\/code><\/pre>\n<p>\u9019\u6a23\uff0c\u6bcf\u6b21\u63d2\u5165\u65b0\u8a18\u9304\u6642\uff0c`id`\u6b04\u4f4d\u90fd\u6703\u81ea\u52d5\u7372\u53d6\u5e8f\u5217\u4e2d\u7684\u4e0b\u4e00\u500b\u503c\u3002<\/p>\n<h2 id=\"%e6%9c%80%e4%bd%b3%e5%af%a6%e8%b8%90-nyVMJTqxIb\">\u6700\u4f73\u5be6\u8e10<\/h2>\n<ul>\n<li><strong>\u9078\u64c7\u5408\u9069\u7684\u6578\u64da\u985e\u578b\uff1a<\/strong>\u5728\u8a2d\u7f6e\u81ea\u52d5\u589e\u9577\u4e3b\u9375\u6642\uff0c\u9078\u64c7\u5408\u9069\u7684\u6578\u64da\u985e\u578b\u975e\u5e38\u91cd\u8981\u3002\u901a\u5e38\uff0c\u6574\u6578\u985e\u578b\uff08\u5982INT\u6216BIGINT\uff09\u662f\u6700\u5e38\u7528\u7684\u9078\u64c7\u3002<\/li>\n<li><strong>\u907f\u514d\u4f7f\u7528\u8907\u5408\u4e3b\u9375\uff1a<\/strong>\u96d6\u7136\u53ef\u4ee5\u4f7f\u7528\u8907\u5408\u4e3b\u9375\uff0c\u4f46\u9019\u6703\u589e\u52a0\u8cc7\u6599\u5eab\u7684\u8907\u96dc\u6027\uff0c\u5efa\u8b70\u4f7f\u7528\u55ae\u4e00\u7684\u81ea\u52d5\u589e\u9577\u4e3b\u9375\u4f86\u7c21\u5316\u8a2d\u8a08\u3002<\/li>\n<li><strong>\u5b9a\u671f\u6aa2\u67e5\u5e8f\u5217\u7684\u72c0\u614b\uff1a<\/strong>\u96a8\u8457\u8cc7\u6599\u7684\u589e\u9577\uff0c\u5e8f\u5217\u7684\u503c\u53ef\u80fd\u6703\u9054\u5230\u4e0a\u9650\uff0c\u56e0\u6b64\u5b9a\u671f\u6aa2\u67e5\u5e8f\u5217\u7684\u72c0\u614b\u662f\u5fc5\u8981\u7684\u3002<\/li>\n<\/ul>\n<h2 id=\"%e7%b5%90%e8%ab%96-nyVMJTqxIb\">\u7d50\u8ad6<\/h2>\n<p>DB2\u7684\u81ea\u52d5\u589e\u9577\u4e3b\u9375\u529f\u80fd\u80fd\u5920\u6709\u6548\u5730\u7ba1\u7406\u8cc7\u6599\u7684\u552f\u4e00\u6027\u548c\u5b8c\u6574\u6027\u3002\u901a\u904e\u6b63\u78ba\u7684\u8a2d\u7f6e\u548c\u4f7f\u7528\u5e8f\u5217\uff0c\u958b\u767c\u8005\u53ef\u4ee5\u7c21\u5316\u8cc7\u6599\u63d2\u5165\u7684\u904e\u7a0b\uff0c\u4e26\u63d0\u9ad8\u7cfb\u7d71\u7684\u6027\u80fd\u3002\u4e86\u89e3\u5982\u4f55\u6b63\u78ba\u904b\u884c\u81ea\u52d5\u589e\u9577\u4e3b\u9375\uff0c\u5c0d\u65bc\u4efb\u4f55\u4f7f\u7528DB2\u7684\u958b\u767c\u8005\u4f86\u8aaa\u90fd\u662f\u4e00\u9805\u91cd\u8981\u7684\u6280\u80fd\u3002<\/p>\n<p>\u5982\u9700\u4e86\u89e3\u66f4\u591a\u95dc\u65bc<code>VPS<\/code>\u3001<code>\u9999\u6e2fVPS<\/code>\u53ca<code>\u4e91\u670d\u52a1\u5668<\/code>\u7684\u8cc7\u8a0a\uff0c\u8acb\u8a2a\u554f\u6211\u5011\u7684\u7db2\u7ad9 <a href=\"https:\/\/server.hk\">Server.HK<\/a>\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u4e86\u89e3DB2\u81ea\u52d5\u589e\u9577\u4e3b\u9375\u7684\u6b63\u78ba\u904b\u884c\u65b9\u5f0f\uff0c\u78ba\u4fdd\u6578\u64da\u5eab\u6027\u80fd\u8207\u6578\u64da\u5b8c\u6574\u6027\uff0c\u63d0\u5347\u7ba1\u7406\u6548\u7387\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-61017","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/61017","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=61017"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/61017\/revisions"}],"predecessor-version":[{"id":61018,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/61017\/revisions\/61018"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=61017"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=61017"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=61017"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}