[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"$fZ8kDZUfIw4N0PTtQYEbd37QCdJ0f4q9yynt2Lbsmaps":3},{"answer":4,"createTime":5,"id":6,"options":7,"origin":12,"question":19,"related":20,"source":30,"type":31},[],"2023-06-07 10:56:59",50734656,[8,9,10,11],"列","行","实体","结构",{"count":13,"courseId":14,"courseImg":15,"courseName":16,"workId":17,"workName":18},15,"4b344c01c194f374769da429701cce9b","https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F22d83e928ab5cb0564577d62b81385cf.jpg","大学计算机","733b6934244544ffad0f98575a054930","第6章 数据库与数据管理-章节测试","关系中的记录对应二维表中的( )",[21,32,41,50,58,61,66,75,84,93],{"answer":22,"createTime":5,"id":23,"options":24,"question":29,"source":30,"type":31},[],50734652,[25,26,27,28],"系统管理阶段","数据库管理阶段","操作系统管理阶段","网络管理阶段","数据库管理技术经历了人工管理阶段、文件管理阶段和( )","v1",0,{"answer":33,"createTime":5,"id":34,"options":35,"question":40,"source":30,"type":31},[],50734653,[36,37,38,39],"通信模型","层次模型","单向模型","地址模型","数据模型包括( )、网状模型、关系模型、面向对象模型",{"answer":42,"createTime":5,"id":43,"options":44,"question":49,"source":30,"type":31},[],50734654,[45,46,47,48],"记录","字段","域","关键字","在数据库中能够唯一地标识一个元组的属性或属性的组合称为( )",{"answer":51,"createTime":5,"id":52,"options":53,"question":57,"source":30,"type":31},[],50734655,[54,37,55,56],"实体—联系模型","关系模型","网状模型","使用二维表来表示实体之间联系的数据模型是( )",{"answer":59,"createTime":5,"id":6,"options":60,"question":19,"source":30,"type":31},[],[8,9,10,11],{"answer":62,"createTime":5,"id":63,"options":64,"question":65,"source":30,"type":31},[],50734657,[8,9,10,11],"关系中的字段对应二维表中的( )",{"answer":67,"createTime":5,"id":68,"options":69,"question":74,"source":30,"type":31},[],50734658,[70,71,72,73],"概念关系图","物理关系图","抽象关系图","实体联系图","建立概念模型时,常用的工具是ER图,即( )",{"answer":76,"createTime":5,"id":77,"options":78,"question":83,"source":30,"type":31},[],50734659,[79,80,81,82],"一个数据库可以包含多个表","一个表可以包含多个数据库","一个表只能包含一个数据库","一个数据库只能包含一个表","以下说法正确的是( )",{"answer":85,"createTime":5,"id":86,"options":87,"question":92,"source":30,"type":31},[],50734660,[88,89,90,91],"INSERT","UPDATE","DELETE","CREATE","更改数据表中的记录可以用哪条语句实现( )",{"answer":94,"createTime":5,"id":95,"options":96,"question":101,"source":30,"type":31},[],50734661,[97,98,99,100],"结构化查询语言","数据定义语言","数据库查询语言","数据库操纵与控制语言","SQL的含义是( )"]