Hbase
shell命令
1.进入hbase客户端命令hbase shell
2.查看帮助命令 help
主要学习下面三个:
3.namespace创建命名空间
(1)create_namespace ‘ns1’
(2)list_namespace
4.ddl
(1)list 查看表格
(2)create 创建表格
create ‘student’,‘info’,’msg’ student表格,info、msg列族
(3)alter 修改表格
alter ‘student’ ,NAME => ‘info’, VERSIONS=>5
(4)drop 删除表格
disable’表名’ 然后 drop ‘表名’
(5)describe查看表格详细信息
5.DML
(1)写入数据Put
Eg: put ‘bigdata:student’,’row01’,’info:name’,’zhangsan’
(2)读取命令
①get读取一行数据
get ’ bigdata:student’,’row01’
get ‘bigdata:student’,’row01’,{COLUMN=>[’info:name’,’msg:f2’]}
②scan读取多行数据,扫描
scan ‘bigdata:student’
scan ‘bigdata:student’ ,{STARTROW=>’row01’,STOPROW=>’row03’}左闭右开
(3)删除数据 delete & deleteall
delete ‘bigdata:student’, ‘row01’,’info:name’
删除多个版本的数据
Deleteall ‘bigdata:studenr’,’row01’,’info:name’
标签:info,shell,name,bigdata,student,常用命令,row01,hbase From: https://www.cnblogs.com/qianlixiaobai/p/17880528.html