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MySQL-50道经典sql题汇总_chineseasstu-CSDN博客

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建表DROP TABLE IF EXISTS `course`;CREATE TABLE `course` ( `CId` varchar(10) default NULL, `Cname` varchar(10) default NULL, `TId` varchar(10) default NULL) ENGINE=InnoDB DEFAULT CHARSET=utf8;-- ------------------------------ Table structure fo._chineseasstu
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