题目内容

下列关于Hive基本操作命令的解释错误的是

A. create database userdb;//创建数据库userdb
B. insert overwrite table student select * from user where age>10; //向表usr1中插入来自usr表的age大于10的数据并覆盖student表中原有数据
C. create table if not exists usr(id bigint,name string,age int);//如果usr表不存在,创建表usr,含三个属性id,name,agecr
D. load data local inpath ‘/usr/local/data’ overwrite into table usr; //把目录’/usr/local/data’下的数据文件中的数据以追加的方式装载进usr表

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