{"id":60713,"date":"2024-10-13T05:11:16","date_gmt":"2024-10-12T21:11:16","guid":{"rendered":"https:\/\/server.hk\/cnblog\/60713\/"},"modified":"2024-10-13T05:11:17","modified_gmt":"2024-10-12T21:11:17","slug":"db2%e6%95%b8%e6%93%9a%e5%ba%ab%e7%9a%84%e6%95%b8%e6%93%9a%e9%a1%9e%e5%9e%8b%e5%88%86%e9%a1%9e%e8%aa%aa%e6%98%8e","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/60713\/","title":{"rendered":"DB2\u6578\u64da\u5eab\u7684\u6578\u64da\u985e\u578b\u5206\u985e\u8aaa\u660e"},"content":{"rendered":"<h1 id=\"db2%e6%95%b8%e6%93%9a%e5%ba%ab%e7%9a%84%e6%95%b8%e6%93%9a%e9%a1%9e%e5%9e%8b%e5%88%86%e9%a1%9e%e8%aa%aa%e6%98%8e-OisMmjKUJb\">DB2\u6578\u64da\u5eab\u7684\u6578\u64da\u985e\u578b\u5206\u985e\u8aaa\u660e<\/h1>\n<p>DB2\u6578\u64da\u5eab\u662fIBM\u516c\u53f8\u958b\u767c\u7684\u4e00\u6b3e\u95dc\u4fc2\u578b\u6578\u64da\u5eab\u7ba1\u7406\u7cfb\u7d71\uff0c\u5ee3\u6cdb\u61c9\u7528\u65bc\u4f01\u696d\u7d1a\u61c9\u7528\u4e2d\u3002DB2\u652f\u6301\u591a\u7a2e\u6578\u64da\u985e\u578b\uff0c\u9019\u4e9b\u6578\u64da\u985e\u578b\u53ef\u4ee5\u6839\u64da\u5176\u7279\u6027\u548c\u7528\u9014\u9032\u884c\u5206\u985e\u3002\u672c\u6587\u5c07\u5c0dDB2\u6578\u64da\u5eab\u7684\u6578\u64da\u985e\u578b\u9032\u884c\u8a73\u7d30\u8aaa\u660e\uff0c\u5e6b\u52a9\u8b80\u8005\u66f4\u597d\u5730\u7406\u89e3\u548c\u4f7f\u7528\u9019\u4e9b\u6578\u64da\u985e\u578b\u3002<\/p>\n<h2 id=\"%e6%95%b8%e6%93%9a%e9%a1%9e%e5%9e%8b%e7%9a%84%e5%9f%ba%e6%9c%ac%e5%88%86%e9%a1%9e-OisMmjKUJb\">\u6578\u64da\u985e\u578b\u7684\u57fa\u672c\u5206\u985e<\/h2>\n<p>\u5728DB2\u4e2d\uff0c\u6578\u64da\u985e\u578b\u4e3b\u8981\u53ef\u4ee5\u5206\u70ba\u4ee5\u4e0b\u5e7e\u985e\uff1a<\/p>\n<ul>\n<li><strong>\u5b57\u7b26\u6578\u64da\u985e\u578b<\/strong><\/li>\n<li><strong>\u6578\u503c\u6578\u64da\u985e\u578b<\/strong><\/li>\n<li><strong>\u65e5\u671f\u548c\u6642\u9593\u6578\u64da\u985e\u578b<\/strong><\/li>\n<li><strong>\u4e8c\u9032\u5236\u6578\u64da\u985e\u578b<\/strong><\/li>\n<li><strong>\u5927\u5c0d\u8c61\u6578\u64da\u985e\u578b<\/strong><\/li>\n<\/ul>\n<h2 id=\"1-%e5%ad%97%e7%ac%a6%e6%95%b8%e6%93%9a%e9%a1%9e%e5%9e%8b-OisMmjKUJb\">1. \u5b57\u7b26\u6578\u64da\u985e\u578b<\/h2>\n<p>\u5b57\u7b26\u6578\u64da\u985e\u578b\u7528\u65bc\u5b58\u5132\u6587\u672c\u6578\u64da\u3002DB2\u63d0\u4f9b\u4e86\u5e7e\u7a2e\u5b57\u7b26\u6578\u64da\u985e\u578b\uff1a<\/p>\n<ul>\n<li><code>CHAR(n)<\/code>: \u56fa\u5b9a\u9577\u5ea6\u7684\u5b57\u7b26\u6578\u64da\uff0c\u9577\u5ea6\u70ban\uff0c\u82e5\u5be6\u969b\u6578\u64da\u9577\u5ea6\u5c0f\u65bcn\uff0c\u5247\u7528\u7a7a\u683c\u586b\u5145\u3002<\/li>\n<li><code>VARCHAR(n)<\/code>: \u53ef\u8b8a\u9577\u5ea6\u7684\u5b57\u7b26\u6578\u64da\uff0c\u9577\u5ea6\u6700\u5927\u70ban\uff0c\u9069\u5408\u5b58\u5132\u9577\u5ea6\u4e0d\u4e00\u7684\u5b57\u7b26\u4e32\u3002<\/li>\n<li><code>CLOB<\/code>: \u7528\u65bc\u5b58\u5132\u5927\u91cf\u6587\u672c\u6578\u64da\uff0c\u6700\u5927\u53ef\u90542GB\u3002<\/li>\n<\/ul>\n<h2 id=\"2-%e6%95%b8%e5%80%bc%e6%95%b8%e6%93%9a%e9%a1%9e%e5%9e%8b-OisMmjKUJb\">2. \u6578\u503c\u6578\u64da\u985e\u578b<\/h2>\n<p>\u6578\u503c\u6578\u64da\u985e\u578b\u7528\u65bc\u5b58\u5132\u6578\u5b57\u6578\u64da\u3002DB2\u652f\u6301\u591a\u7a2e\u6578\u503c\u6578\u64da\u985e\u578b\uff1a<\/p>\n<ul>\n<li><code>INTEGER<\/code>: \u6574\u6578\u985e\u578b\uff0c\u901a\u5e38\u4f54\u75284\u500b\u5b57\u7bc0\u3002<\/li>\n<li><code>SMALLINT<\/code>: \u5c0f\u6574\u6578\u985e\u578b\uff0c\u4f54\u75282\u500b\u5b57\u7bc0\u3002<\/li>\n<li><code>DECIMAL(p,s)<\/code>: \u7cbe\u78ba\u5c0f\u6578\u985e\u578b\uff0cp\u70ba\u7e3d\u4f4d\u6578\uff0cs\u70ba\u5c0f\u6578\u4f4d\u6578\u3002<\/li>\n<li><code>FLOAT<\/code>: \u6d6e\u9ede\u6578\u985e\u578b\uff0c\u9069\u5408\u5b58\u5132\u79d1\u5b78\u8a08\u7b97\u4e2d\u7684\u6578\u64da\u3002<\/li>\n<\/ul>\n<h2 id=\"3-%e6%97%a5%e6%9c%9f%e5%92%8c%e6%99%82%e9%96%93%e6%95%b8%e6%93%9a%e9%a1%9e%e5%9e%8b-OisMmjKUJb\">3. \u65e5\u671f\u548c\u6642\u9593\u6578\u64da\u985e\u578b<\/h2>\n<p>\u65e5\u671f\u548c\u6642\u9593\u6578\u64da\u985e\u578b\u7528\u65bc\u5b58\u5132\u6642\u9593\u76f8\u95dc\u7684\u6578\u64da\u3002DB2\u63d0\u4f9b\u4e86\u4ee5\u4e0b\u5e7e\u7a2e\u985e\u578b\uff1a<\/p>\n<ul>\n<li><code>DATE<\/code>: \u7528\u65bc\u5b58\u5132\u65e5\u671f\uff0c\u683c\u5f0f\u70baYYYY-MM-DD\u3002<\/li>\n<li><code>TIME<\/code>: \u7528\u65bc\u5b58\u5132\u6642\u9593\uff0c\u683c\u5f0f\u70baHH:MM:SS\u3002<\/li>\n<li><code>TIMESTAMP<\/code>: \u7528\u65bc\u5b58\u5132\u65e5\u671f\u548c\u6642\u9593\u7684\u7d44\u5408\uff0c\u683c\u5f0f\u70baYYYY-MM-DD HH:MM:SS\u3002<\/li>\n<\/ul>\n<h2 id=\"4-%e4%ba%8c%e9%80%b2%e5%88%b6%e6%95%b8%e6%93%9a%e9%a1%9e%e5%9e%8b-OisMmjKUJb\">4. \u4e8c\u9032\u5236\u6578\u64da\u985e\u578b<\/h2>\n<p>\u4e8c\u9032\u5236\u6578\u64da\u985e\u578b\u7528\u65bc\u5b58\u5132\u4e8c\u9032\u5236\u6578\u64da\uff0c\u5982\u5716\u50cf\u6216\u6587\u4ef6\u3002DB2\u652f\u6301\u4ee5\u4e0b\u985e\u578b\uff1a<\/p>\n<ul>\n<li><code>VARBINARY(n)<\/code>: \u53ef\u8b8a\u9577\u5ea6\u7684\u4e8c\u9032\u5236\u6578\u64da\uff0c\u9577\u5ea6\u6700\u5927\u70ban\u3002<\/li>\n<li><code>BLOB<\/code>: \u7528\u65bc\u5b58\u5132\u5927\u91cf\u4e8c\u9032\u5236\u6578\u64da\uff0c\u6700\u5927\u53ef\u90542GB\u3002<\/li>\n<\/ul>\n<h2 id=\"5-%e5%a4%a7%e5%b0%8d%e8%b1%a1%e6%95%b8%e6%93%9a%e9%a1%9e%e5%9e%8b-OisMmjKUJb\">5. \u5927\u5c0d\u8c61\u6578\u64da\u985e\u578b<\/h2>\n<p>\u5927\u5c0d\u8c61\u6578\u64da\u985e\u578b\u7528\u65bc\u5b58\u5132\u8d85\u5927\u6578\u64da\uff0c\u5982\u8996\u983b\u6216\u97f3\u983b\u6587\u4ef6\u3002DB2\u63d0\u4f9b\u4e86\u4ee5\u4e0b\u985e\u578b\uff1a<\/p>\n<ul>\n<li><code>CLOB<\/code>: \u7528\u65bc\u5b58\u5132\u5927\u91cf\u5b57\u7b26\u6578\u64da\u3002<\/li>\n<li><code>BLOB<\/code>: \u7528\u65bc\u5b58\u5132\u5927\u91cf\u4e8c\u9032\u5236\u6578\u64da\u3002<\/li>\n<\/ul>\n<h2 id=\"%e7%b5%90%e8%ab%96-OisMmjKUJb\">\u7d50\u8ad6<\/h2>\n<p>DB2\u6578\u64da\u5eab\u7684\u6578\u64da\u985e\u578b\u5206\u985e\u70ba\u7528\u6236\u63d0\u4f9b\u4e86\u9748\u6d3b\u7684\u6578\u64da\u5b58\u5132\u9078\u64c7\u3002\u4e86\u89e3\u9019\u4e9b\u6578\u64da\u985e\u578b\u7684\u7279\u6027\u548c\u7528\u9014\uff0c\u53ef\u4ee5\u5e6b\u52a9\u958b\u767c\u8005\u5728\u8a2d\u8a08\u6578\u64da\u5eab\u6642\u505a\u51fa\u66f4\u5408\u9069\u7684\u9078\u64c7\u3002\u7121\u8ad6\u662f\u5b57\u7b26\u3001\u6578\u503c\u9084\u662f\u65e5\u671f\u6642\u9593\u985e\u578b\uff0cDB2\u90fd\u80fd\u5920\u6eff\u8db3\u4e0d\u540c\u61c9\u7528\u5834\u666f\u7684\u9700\u6c42\u3002<\/p>\n<p>\u5982\u9700\u4e86\u89e3\u66f4\u591a\u6709\u95dc\u65bc\u6578\u64da\u5eab\u548c\u4f3a\u670d\u5668\u7684\u8cc7\u8a0a\uff0c\u8acb\u8a2a\u554f\u6211\u5011\u7684\u7db2\u7ad9 <a href=\"https:\/\/server.hk\">Server.HK<\/a>\uff0c\u6211\u5011\u63d0\u4f9b\u5404\u7a2e <a href=\"https:\/\/server.hk\">VPS<\/a> \u89e3\u6c7a\u65b9\u6848\uff0c\u5e6b\u52a9\u60a8\u66f4\u597d\u5730\u7ba1\u7406\u548c\u904b\u884c\u60a8\u7684\u61c9\u7528\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u4e86\u89e3DB2\u6578\u64da\u5eab\u7684\u6578\u64da\u985e\u578b\u5206\u985e\uff0c\u5305\u62ec\u6574\u6578\u3001\u6d6e\u9ede\u6578\u3001\u5b57\u7b26\u3001\u65e5\u671f\u7b49\uff0c\u52a9\u60a8\u9078\u64c7\u5408\u9069\u7684\u6578\u64da\u985e\u578b\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-60713","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/60713","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=60713"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/60713\/revisions"}],"predecessor-version":[{"id":60714,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/60713\/revisions\/60714"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=60713"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=60713"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=60713"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}