摘要: --查找姓名、性别、年龄、地址、电话相同的员工记录。select count(id) as id_count, name, sex, birthday, address, telfrom staffgroup by name, ... 阅读全文
posted @ 2014-04-30 11:44 深圳大漠 阅读(363) 评论(0) 推荐(0) 编辑