大数据HBase系列之HBase基本操作

1.  hbase命令

• 版本查看

hbase version

• 连接Zookeeper客户端

hbase zkcli

• 连接HBase客户端

hbase shell

2.  CRUD

2.1  创建表

-- 语法：create '表名','列族名'
create 'student','info'

2.2  显示所有表

-- 语法：list 或 list '表名'
list 'student'

2.3  显示表描述

-- 语法：describe '表名'
describe 'student'

2.4  插入数据

-- 语法：put '表名','行键','列族:列名','值'
put 'student','10001','info:id','Ao001'
put 'student','10001','info:name','Jack'
put 'student','10001','info:sex','man'

put 'student','10002','info:id','Ao002'
put 'student','10002','info:name','Little Blue'
put 'student','10002','info:sex','man'

put 'student','10003','info:id','Ao003'
put 'student','10003','info:name','Laugh laugh'
put 'student','10003','info:sex','woman'

2.5  查询数据

• get查询

-- 语法：get '表名','行键名'
get 'student','10001'

-- 语法：get '表名','行键名','列族:列名'
get 'student','10002','info:name'

• scan查询

-- 语法：scan '表名',{COLUMN => ['列族:列名','列族:列名']}
scan 'student',{COLUMN => ['info:name','info:sex']}

-- 语法：scan '表名',{STARTROW =>'条件'}
scan 'student',{STARTROW =>'10002'}

2.6  删除数据

• delete删除

-- 语法：delete '表名','行键','列族:列名'
delete 'student','10002','info:sex'

• deleteall删除

-- 语法：deleteall '表名','行键'
deleteall 'student','10003'