[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"$fk_F4ICAq1ZIYtrllUVCjGj5Cpchng1ZCdr8hrcmdNo8":3},{"answer":4,"createTime":5,"id":6,"options":7,"origin":12,"question":19,"related":20,"source":29,"type":66},[],"2024-06-04 15:57:08",148595265,[8,9,10,11],"substring","replace","join","concat",{"count":13,"courseId":14,"courseImg":15,"courseName":16,"workId":17,"workName":18},179,"8310812410520cde847be27c20e20cd3","https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Fb66b458e8189a4691610d3232e9b9cb2.jpg","数据库技术","exam_123966611","2024客观题复习-随机组卷-可多次刷题","可以实现字符串连接的函数是",[21,31,37,42,47,52,57,67,76,79],{"answer":22,"createTime":23,"id":24,"options":25,"question":28,"source":29,"type":30},[],"2024-06-04 15:57:06",148595246,[26,27],"正确","错误","所创建的数据库和表的名字,都可以使用中文","v1",3,{"answer":32,"createTime":33,"id":34,"options":35,"question":36,"source":29,"type":30},[],"2024-06-04 15:57:07",148595248,[26,27],"当一个表中所有行被删除后,该表也同时被删除了",{"answer":38,"createTime":33,"id":39,"options":40,"question":41,"source":29,"type":30},[],148595250,[26,27],"查询的结果只能按一个字段进行排序",{"answer":43,"createTime":33,"id":44,"options":45,"question":46,"source":29,"type":30},[],148595252,[26,27],"主键不可以是复合键",{"answer":48,"createTime":33,"id":49,"options":50,"question":51,"source":29,"type":30},[],148595254,[26,27],"触发器可以看作是一种特殊类型的存储过程,存储过程使用时需要调用,而触发器是在预先定义好的事件发生时,才会被MySQL自动调用",{"answer":53,"createTime":33,"id":54,"options":55,"question":56,"source":29,"type":30},[],148595256,[26,27],"多表查询时,内连接是指找出两个表查询结果的并集",{"answer":58,"createTime":33,"id":59,"options":60,"question":65,"source":29,"type":66},[],148595260,[61,62,63,64],"非空约束","唯一约束","以上答案都不正确","默认约束","列选项中,( )能保证表中字段值的唯一性",0,{"answer":68,"createTime":5,"id":69,"options":70,"question":75,"source":29,"type":66},[],148595262,[71,72,73,74],"终端","客户机端","系统端","服务器端","在采用客户机\u002F服务器体系结构的数据库应用系统中,应该将用户应用程序安装在( )",{"answer":77,"createTime":5,"id":6,"options":78,"question":19,"source":29,"type":66},[],[8,9,10,11],{"answer":80,"createTime":81,"id":82,"options":83,"question":88,"source":29,"type":66},[],"2024-06-04 15:57:09",148595268,[84,85,86,87],"not in","exists","on","in","进行子查询时,用于测试条件返回的是true,还是false的关键字使用"]