[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"$fK6tXhd08QK2_y8cnCNGoq170a4M7xPWyMvd6VpyxMd4":3},{"answer":4,"createTime":5,"id":6,"options":7,"origin":12,"question":19,"related":20,"source":30,"type":31},[],"2024-05-30 09:10:03",147199425,[8,9,10,11],"需求分析","逻辑结构设计","概念结构设计","物理结构设计",{"count":13,"courseId":14,"courseImg":15,"courseName":16,"workId":17,"workName":18},112,"86e3e3a2442439dea115a02eaf5ad89a","https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Fffd8452377c96c561822fe1732615d0b.jpg","职场通用英语II-软件技术[二年制]","work_35341977","第8章 CPU的结构和功能-单选题","在数据库设计中使用E-R图工具的阶段是",[21,32,40,49,58,67,76,79,88,97],{"answer":22,"createTime":5,"id":23,"options":24,"question":29,"source":30,"type":31},[],147199419,[25,26,27,28],"数据库","数据库系统","数据库管理系统","数据库应用系统","建立在操作系统之上,对数据库进行管理和控制的一层数据管理软件是( )","v1",0,{"answer":33,"createTime":5,"id":34,"options":35,"question":39,"source":30,"type":31},[],147199420,[36,37,38],"Master","information","MySQL","下列数据库不是系统数据库的是",{"answer":41,"createTime":5,"id":42,"options":43,"question":48,"source":30,"type":31},[],147199421,[44,45,46,47],"DELETE TABLE","DROP TABLE","CLEAR TABLE","REMOVE TABLE","SQL语言中,删除数据表的命令是",{"answer":50,"createTime":5,"id":51,"options":52,"question":57,"source":30,"type":31},[],147199422,[53,54,55,56],"JOIN","GROUP BY","WHERE","ORDER BY","可以实现分组查询的字句是",{"answer":59,"createTime":5,"id":60,"options":61,"question":66,"source":30,"type":31},[],147199423,[62,63,64,65],"网状模型","层次模型","关系模型","实体模型","目前,主流的数据库管理系统产品其数据模型是",{"answer":68,"createTime":5,"id":69,"options":70,"question":75,"source":30,"type":31},[],147199424,[71,72,73,74],"NULL表示空格","NULL表示0","NULL既可以表示0,也可以表示空格","NULL表示空值","在SQL语句中,关于NULL值叙述正确的是",{"answer":77,"createTime":5,"id":6,"options":78,"question":19,"source":30,"type":31},[],[8,9,10,11],{"answer":80,"createTime":5,"id":81,"options":82,"question":87,"source":30,"type":31},[],147199426,[83,84,85,86],"表","元组","查询","字段","关系数据库中,每一行数据代表唯一的记录,也称为是",{"answer":89,"createTime":5,"id":90,"options":91,"question":96,"source":30,"type":31},[],147199427,[92,93,94,95],"StudentID=2008001 AND StudentID=2008005 AND StudentID=2008016","StudentID=2008001 OR StudentID=2008005 OR StudentID=2008016","StudentID=2008001 AND StudentID=2008005 OR StudentID=2008016","StudentID=2008001 OR StudentID=2008005 AND StudentID=2008016","在SQL语言中,语句"StudentID IN(2008001,2008005,2008016)",与这个表达式等同的是",{"answer":98,"createTime":5,"id":99,"options":100,"question":105,"source":30,"type":31},[],147199428,[101,102,103,104],"姓名 LIKE '张_'AND Address IS'天津'","姓名 LIKE '张*'AND Address='天津'","姓名 LIKE '张%'AND Address IS'天津'","姓名 LIKE '张%'AND Address='天津'","若想查询出所有姓张、且出生地为"天津"的学生信息,则WHERE条件应是"]