[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"$f3ahjTNJHWsbDhQQycLbkq6TutjyZBQfa1rI95zqODSc":3},{"answer":4,"createTime":5,"id":6,"options":7,"origin":13,"question":20,"related":21,"source":31,"type":32},[],"2025-12-04 09:40:48",250004356,[8,9,10,11,12],"insert into... values..","insert into select..","insert into update..","insert into..set","alter into select..",{"count":14,"courseId":15,"courseImg":16,"courseName":17,"workId":18,"workName":19},11,"53e1d2ef4961cca8eea3e23969ad2cb9","https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F03a579384a6dc297c89809b582fcc767.png","默认课程","exam_168040046","项目4 数据管理测试题","以下( )指令可以添加记录的",[22,33,42,51,60,69,78,87,90,99],{"answer":23,"createTime":5,"id":24,"options":25,"question":30,"source":31,"type":32},[],250004347,[26,27,28,29],"update into user set id = 'u001'","update user set username='jack' where id = 1","update user set id = 'u001' and username='jack'","update into user set id = 'u001', username='jack'","更新user表中的数据,将id为1的姓名更新为jack,下面描述正确的有( )","v1",0,{"answer":34,"createTime":5,"id":35,"options":36,"question":41,"source":31,"type":32},[],250004348,[37,38,39,40],"alter table..drop record..","alter table...drop column..","alter table...delete column..","alter table...delete.","删除列的命令是( )",{"answer":43,"createTime":5,"id":44,"options":45,"question":50,"source":31,"type":32},[],250004349,[46,47,48,49],"删除工资为300的记录","将Members表中工资都增加300","查询工资为300的记录","修改Members工资都扣除300","对于SQL语句&quot;UPDATE Members SET Salary=Salary+300&quot;,下列表述正确的是: ( )",{"answer":52,"createTime":5,"id":53,"options":54,"question":59,"source":31,"type":32},[],250004350,[55,56,57,58],"无所谓","utf-32","utf-8","utf-16","安装MySQL时,选择字符集时最好选择( )",{"answer":61,"createTime":5,"id":62,"options":63,"question":68,"source":31,"type":32},[],250004351,[64,65,66,67],"ADD INTO S VALUES('张二','化学',80)","INSERT INTO S VALUES('张二','化学','80')","INSERT INTO S VALUES('张二','化学',80)","ADD INTO S VALUES('张二','化学','80')","设关系数据库中一个表S的结构为(SN,CN,grade),其中SN为学生名,CN为课程名,二者均为字符型;grade为成绩,数值型,取值范围0-100.若要把&quot;张二的化学成绩80分&quot;插入S中,则可用( )",{"answer":70,"createTime":5,"id":71,"options":72,"question":77,"source":31,"type":32},[],250004352,[73,74,75,76],"删除user表的数据","删除user表","删除user表,并再次创建user表","查询user表中的所有数据","&quot;truncate table user;&quot;表示什么意思?( )",{"answer":79,"createTime":5,"id":80,"options":81,"question":86,"source":31,"type":32},[],250004355,[82,83,84,85],"3308","3306","80","8080","有关MySQL的默认端口号说法正确的是( )",{"answer":88,"createTime":5,"id":6,"options":89,"question":20,"source":31,"type":32},[],[8,9,10,11,12],{"answer":91,"createTime":5,"id":92,"options":93,"question":98,"source":31,"type":32},[],250004358,[94,95,96,97],"INSERT","UPDATE","SELECT","INTO","往数据表中新增一新的记录的命令是:( )",{"answer":100,"createTime":5,"id":101,"options":102,"question":107,"source":31,"type":32},[],250004359,[103,104,105,106],"表中包含auto _increment列,使用truncate table可以重置序列值为该列初始值","truncate 将删除表中的所有数据","truncate table 删除表,然后重新构建表","truncate 操作比 delete 操作占用资源多","关于truncate table 描述不正确的是( )"]