{"id":3694,"date":"2019-07-22T11:37:37","date_gmt":"2019-07-22T03:37:37","guid":{"rendered":"https:\/\/damogame.cn\/wordpress\/?p=3694"},"modified":"2019-07-22T11:37:37","modified_gmt":"2019-07-22T03:37:37","slug":"%e4%b8%89%e8%8c%83%e5%bc%8f%e6%95%b0%e6%8d%ae%e5%ba%93%e8%ae%be%e8%ae%a1%e5%92%8c%e5%8f%8d%e8%8c%83%e5%bc%8f%e7%9a%84%e6%80%9d%e8%80%83%e8%bd%ac","status":"publish","type":"post","link":"https:\/\/i007.cc\/wordpress\/archives\/3694","title":{"rendered":"\u4e09\u8303\u5f0f\u6570\u636e\u5e93\u8bbe\u8ba1\u548c\u53cd\u8303\u5f0f\u7684\u601d\u8003(\u8f6c)"},"content":{"rendered":"<div class=\"article-header-box\">\n<div class=\"article-header\">\n<div class=\"article-title-box\"><\/div>\n<div class=\"article-info-box\">\n<div class=\"article-bar-top\"><a href=\"https:\/\/blog.csdn.net\/adparking\/article\/details\/41864507\">\u539f\u6587\u5730\u5740<\/a><\/div>\n<div class=\"operating\"><\/div>\n<\/div>\n<\/div>\n<\/div>\n<article class=\"baidu_pl\">\n<div id=\"article_content\" 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\u5b66\u6821\u7684\u8bfe\u7a0b\u8868\u8fdb\u884c\u64cd\u4f5c\uff0c\u73b0\u5728\u6709\u4e24\u5f20\u8868\uff0c\u4e00\u5f20\u662f\u5b66\u751f\u4fe1\u606fstudent\uff08a_id,a_name,a_adress,b_id\uff09\u8868\uff0c\u4e00\u5f20\u662f\u8bfe\u7a0b\u8868 subject(b_id,b_subject)\uff0c\u73b0\u5728\u6211\u4eec\u9700\u8981\u4e00\u4e2a\u8fd9\u6837\u7684\u4fe1\u606f\uff0c\u628a\u9009\u62e9\u6bcf\u4e2a\u8bfe\u7a0b\u7684\u7684\u8bfe\u7a0b\u540d\u79f0\u548c\u5b66\u751f\u59d3\u540d\u8f93\u51fa\u6765\uff1a<\/p>\n<p>SQL\u8bed\u53e5\u4e3a\uff1aselect\u00a0 B.b_id,B.b_subject,A_a_name from student A ,subject B;<\/p>\n<p>\u5f53\u4e0a\u9762\u7684\u6570\u636e\u91cf\u4e0d\u591a\u65f6\uff0c\u6211\u4eec\u8fd9\u6837\u53bb\u67e5\u8be2\u6ca1\u6709\u95ee\u9898\uff1b\u5f53\u6211\u4eec\u7684\u4e24\u5f20\u8868\u7684\u6570\u636e\u90fd\u662f\u5728\u767e\u4e07\u7ea7\u7684\u65f6\u5019\uff0c\u6211\u4eec\u53bb\u67e5\u4e0a\u9762\u7684\u4fe1\u606f\uff0c\u00a0\u95ee\u9898\u51fa\u73b0\u4e86\uff0c\u8fd9\u4e2a\u67e5\u8be2\u52a8\u4e0d\u52a8\u5c31\u662f\u51e0\u767e\u6beb\u79d2\uff0c\u751a\u81f3\u66f4\u6162\uff0c\u8fd9\u6837\u7684\u67e5\u8be2\u6548\u7387\u6839\u672c\u4e0d\u80fd\u6ee1\u8db3\u6211\u4eec\u5bf9\u4e8e\u7f51\u9875\u901f\u5ea6\u7684\u8981\u6c42\uff08\u4e00\u822c\u4e0d\u80fd\u8d85\u8fc7100\u6beb\u79d2\uff09\uff0c\u600e\u4e48\u529e\uff1f\u5f53\u7136\u8981\u53cd\u8303\u5f0f\uff0c\u5728\u8bfe\u7a0b\u8868\u91cc\u9762\u6dfb\u52a0\u5197\u4f59\u5b57\u6bb5\u2014\u2014\u5b66\u751f\u59d3\u540d\uff0c\u8fd9\u6837\u6211\u4eec\u5c31\u53ef\u4ee5\u901a\u8fc7\u4e0b\u9762\u7684\u67e5\u8be2\u8fbe\u5230\u540c\u6837\u7684\u76ee\u7684\uff1a<\/p>\n<p>SQL\u8bed\u53e5\u4e3a\uff1aselect\u00a0 b_id,b_subject,a_name from subject B;<\/p>\n<p>\u5c06\u4e24\u4e2a\u67e5\u8be2\u653e\u5728\u4e00\u8d77\u67e5\u770b\u6267\u884c\u8ba1\u5212\uff0c\u5c31\u4f1a\u53d1\u73b0\uff0c\u7b2c\u4e00\u4e2a\u67e5\u8be2\u5f00\u9500\u5360\u4e8692%\uff0c\u800c\u7b2c\u4e8c\u4e2a\u624d8%\uff0c\u4e5f\u5c31\u662f\u8bf4\uff0c\u7b2c\u4e8c\u4e2a\u67e5\u8be2\u6bd4\u8d77\u7b2c\u4e00\u4e2a\u67e5\u8be2\uff0c\u6548\u7387\u4e0a\u4f18\u5316\u4e8610\u500d\u4ee5\u4e0a\uff0c\u6210\u679c\u663e\u8457\u554a\u3002<\/p>\n<p>\u603b\u7ed3\uff1a<\/p>\n<p>\u5f53\u6211\u4eec\u5f00\u59cb\u7740\u624b\u4e00\u4e2a\u9879\u76ee\u540e\uff0c\u8303\u5f0f\u7684\u5e94\u7528\u662f\u8fd9\u6837\u7684\u53d8\u5316\u7684\uff1a<\/p>\n<p>\u7b2c\u4e09\u8303\u5f0f\u6570\u636e\u5e93\u7684\u8bbe\u8ba1\u2014\u2013&gt;\u5f53\u6570\u636e\u91cf\u8d8a\u6765\u8d8a\u5927\uff0c\u8fbe\u5230\u767e\u4e07\u7ea7\u65f6\uff0c\u7ecf\u5e38\u8981\u5bf9\u4e00\u4e9b\u591a\u8868\u6570\u636e\u8fdb\u884c\u5927\u8303\u56f4\u9ad8\u9891\u7387\u8fdb\u884c\u64cd\u4f5c\u2014\u2014-&gt;\u8303\u5f0f\u6570\u636e\u5e93\u7684\u8bbe\u8ba1\u2014\u2014\u2014-&gt;\u7f51\u7ad9\u7684\u6570\u636e\u91cf\u518d\u6301\u7eed\u589e\u957f\u2014\u2014\u2014-&gt;\u8303\u5f0f\u548c\u53cd\u8303\u5f0f\u7684\u6570\u636e\u5e93\u8bbe\u8ba1<\/p>\n<p>\u5f53\u6211\u4eec\u7684\u6570\u636e\u91cf\u975e\u5e38\u5927\uff0c\u76ee\u524d\u9664\u4e86\u5bf9\u6570\u636e\u5e93\u7684\u8bbe\u8ba1\u6539\u52a8\u5916\uff0c\u8fd8\u53ef\u4ee5\u901a\u8fc7\u5bf9\u6570\u636e\u5c42\u8fdb\u884c\u7f13\u5b58\u5904\u7406\u3002\u5982\u73b0\u5728\u4f7f\u7528\u6548\u679c\u663e\u8457\u7684Memcached 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