[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"$fLUrAlkv_mv73gneswH3T8Fw1_pUHHQTodHcmOCfbKIs":3},{"answer":4,"createTime":5,"id":6,"options":7,"origin":10,"question":17,"related":18,"source":28,"type":61},[],"2025-11-20 00:52:59",237393121,[8,9],"正确","错误",{"count":11,"courseId":12,"courseImg":13,"courseName":14,"workId":15,"workName":16},7,"090bd166e9656521e4891681743f0904","https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Fa68f6c461c0c929cd4d651f8c703fbab.jpg","数据库系统","work_47653360","3.4.2","如果表的某一列被指定具有NOT NULL属性,则表示不为空.( )",[19,30,39,48,56,62,65],{"answer":20,"createTime":5,"id":21,"options":22,"question":27,"source":28,"type":29},[],237393116,[23,24,25,26],"DROP DATABASE","CREATE TABLE","ALTER DATABASE","DROP TABLE","使用下列哪种语句可以删除数据库( )","v1",0,{"answer":31,"createTime":5,"id":32,"options":33,"question":38,"source":28,"type":29},[],237393117,[34,35,36,37],"SELECT","GROUPBY","WHERE","ORDERBY","下面SELECT语句中哪个子句可以包含子查询( )",{"answer":40,"createTime":5,"id":41,"options":42,"question":47,"source":28,"type":29},[],237393118,[43,44,45,46],"一个记录","多个记录","由子查询的WHERE子句而定","与FROM子句指定的表的记录个数相","嵌套查询的子查询结果记录个数是( )",{"answer":49,"createTime":5,"id":50,"options":51,"question":55,"source":28,"type":29},[],237393119,[34,52,53,54],"INSERT","DELETE","UPDATE","在SQL中,数据更新语句是( )",{"answer":57,"createTime":5,"id":58,"options":59,"question":60,"source":28,"type":61},[],237393120,[8,9],"语句 SELECT ROUND(13.4321,2), ROUND(13.4567,3)的执行结果是:13.4和13.( )",3,{"answer":63,"createTime":5,"id":6,"options":64,"question":17,"source":28,"type":61},[],[8,9],{"answer":66,"createTime":5,"id":67,"options":68,"question":69,"source":28,"type":61},[],237393122,[8,9],"检索姓名字段中含有'娟'的表达式为:姓名like %娟.( )"]