1. 以下关系型数据库中的表和数据,要求将其转换为适合于HBase存储的表并插入数据:
学生表(Student)(不包括最后一列)
学号(S_No) | 姓名(S_Name) | 性别(S_Sex) | 年龄(S_Age) | 课程(course) |
2015001 | Zhangsan | male | 23 | |
2015003 | Mary | female | 22 | |
2015003 | Lisi | male | 24 | 数学(Math)85 |
1 2 3 4 5 6 7 8 9 10 11 12 13 | create 'Student' , ' S_No ' , 'S_Name' , ’S_Sex’, 'S_Age' put 'Student' , '1' , 'S_No' , '2015001' put 'Student' , '1' , 'S_Name' , 'Zhangsan' put 'Student' , '1' , 'S_Sex' , 'male' put 'Student' , '1' , 'S_Age' , '23' put 'Student' , '2' , 'S_No' , '2015003' put 'Student' , '2' , 'S_Name' , 'Mary' put 'Student' , '2' , 'S_Sex' , 'female' put 'Student' , '2' , 'S_Age' , '22' put 'Student' , '3' , 'S_No' , '2015003' put 'Student' , '3' , 'S_Name' , 'Lisi' put 'Student' , '3' , 'S_Sex' , 'male' put 'Student' , '3' , 'S_Age' , '24' |
2. 用Hadoop提供的HBase Shell命令完成相同任务:
- 列出HBase所有的表的相关信息;list
- 在终端打印出学生表的所有记录数据;
- 向学生表添加课程列族;
- 向课程列族添加数学列并登记成绩为85;
- 删除课程列;
- 统计表的行数;count 's1'
- 清空指定的表的所有记录数据;truncate 's1'
1 2 3 4 5 6 | scan 'Student' alter 'Student' , 'NAME' = > 'course' put 'Student' , '3' , 'course:Math' , '85' dorp 'Student' , 'course' count 's1' truncate 's1' |