$ bin/hbase shell
hbase(main):001:0> help
hbase(main):002:0> list
创建user表,包含info、data两个列族
hbase(main):010:0> create ‘user’, ‘info’, ‘data’
或者(多了一个版本号VERSIONS)
hbase(main):010:0> create ‘user’, {NAME => ‘info’, VERSIONS => ‘3’},{NAME => ‘data’}
向user表中插入信息,row key为rk0001,列族info中添加name列标示符,值为zhangsan
hbase(main):011:0> put ‘user’, ‘rk0001’, ‘info:name’, ‘zhangsan’
向user表中插入信息,row key为rk0001,列族info中添加gender列标示符,值为female
hbase(main):012:0> put ‘user’, ‘rk0001’, ‘info:gender’, ‘female’
向user表中插入信息,row key为rk0001,列族info中添加age列标示符,值为20
hbase(main):013:0> put ‘user’, ‘rk0001’, ‘info:age’, 20
向user表中插入信息,row key为rk0001,列族data中添加pic列标示符,值为picture
hbase(main):014:0> put ‘user’, ‘rk0001’, ‘data:pic’, ‘picture’
获取user表中row key为rk0001的所有信息
hbase(main):015:0> get ‘user’, ‘rk0001’
获取user表中row key为rk0001,info列族的所有信息
hbase(main):016:0> get ‘user’, ‘rk0001’, ‘info’
获取user表中row key为rk0001,info列族的name、age列标示符的信息
hbase(main):017:0> get ‘user’, ‘rk0001’, ‘info:name’, ‘info:age’
获取user表中row key为rk0001,info、data列族的信息
hbase(main):018:0> get ‘user’, ‘rk0001’, ‘info’, ‘data’
或者你也可以这样写
hbase(main):019:0> get ‘user’, ‘rk0001’, {COLUMN => [‘info’, ‘data’]}
或者你也可以这样写,也行
hbase(main):020:0> get ‘user’, ‘rk0001’, {COLUMN => [‘info:name’, ‘data:pic’]}
4、指定rowkey与列值查询
获取user表中row key为rk0001,cell的值为zhangsan的信息,FILTER 过滤器,binary固定写法
hbase(main):030:0> get ‘user’, ‘rk0001’, {FILTER => “ValueFilter(=, ‘binary:zhangsan’)”}
5、指定rowkey与列值模糊查询
获取user表中row key为rk0001,列标示符中含有a的信息
hbase(main):031:0> get ‘user’, ‘rk0001’, {FILTER => “(QualifierFilter(=,‘substring:a’))”}
继续插入一批数据
hbase(main):032:0> put ‘user’, ‘rk0002’, ‘info:name’, ‘fanbingbing’
hbase(main):033:0> put ‘user’, ‘rk0002’, ‘info:gender’, ‘female’
hbase(main):034:0> put ‘user’, ‘rk0002’, ‘info:nationality’, ‘中国’
hbase(main):035:0> get ‘user’, ‘rk0002’, {FILTER => “ValueFilter(=, ‘binary:中国’)”}
查询user表中的所有信息
scan ‘user’
查询user表中列族为info的信息
scan ‘user’, {COLUMNS => ‘info’}
scan ‘user’, {COLUMNS => ‘info’, RAW => true, VERSIONS => 5}
scan ‘user’, {COLUMNS => ‘info’, RAW => true, VERSIONS => 3}
查询user表中列族为info和data的信息
scan ‘user’, {COLUMNS => [‘info’, ‘data’]}
scan ‘user’, {COLUMNS => [‘info:name’, ‘data:pic’]}
查询user表中列族为info、列标示符为name的信息
scan ‘user’, {COLUMNS => ‘info:name’}
查询user表中列族为info、列标示符为name的信息,并且版本最新的5个
scan ‘user’, {COLUMNS => ‘info:name’, VERSIONS => 5}
查询user表中列族为info和data且列标示符中含有a字符的信息
scan ‘user’, {COLUMNS => [‘info’, ‘data’], FILTER => “(QualifierFilter(=,‘substring:a’))”}
查询user表中列族为info,rk范围是[rk0001, rk0003)的数据
scan ‘user’, {COLUMNS => ‘info’, STARTROW => ‘rk0001’, ENDROW => ‘rk0003’}
查询user表中row key以rk字符开头的
scan ‘user’,{FILTER=>“PrefixFilter(‘rk’)”}
查询user表中指定范围的数据
scan ‘user’, {TIMERANGE => [1392368783980, 1392380169184]}
7、更新数据操作
1、更新数据值
更新操作同插入操作一模一样,只不过有数据就更新,没数据就添加
2、更新版本号
将user表的f1列族版本号改为5
hbase(main):050:0> alter ‘user’, NAME => ‘info’, VERSIONS => 5
删除user表row key为rk0001,列标示符为info:name的数据
hbase(main):045:0> delete ‘user’, ‘rk0001’, ‘info:name’
删除user表row key为rk0001,列标示符为info:name,timestamp为1392383705316的数据
delete ‘user’, ‘rk0001’, ‘info:name’, 1392383705316
删除一个列族:
alter ‘user’, NAME => ‘info’, METHOD => ‘delete’
或
alter ‘user’, ‘delete’ => ‘info’
hbase(main):017:0> truncate ‘user’
首先需要先让该表为disable状态,使用命令:
hbase(main):049:0> disable ‘user’
然后才能drop这个表,使用命令:
hbase(main):050:0> drop ‘user’
(注意:如果直接drop表,会报错:Drop the named table. Table must first be disabled)
hbase(main):053:0> count ‘user’
例如:显示服务器状态
hbase(main):058:0> status ‘node01’
显示HBase当前用户,例如:
hbase> whoami
显示当前所有的表
统计指定表的记录数,例如:
hbase> count ‘user’
展示表结构信息
检查表是否存在,适用于表量特别多的情况
检查表是否启用或禁用
该命令可以改变表和列族的模式,例如:
为当前表增加列族:
hbase> alter ‘user’, NAME => ‘CF2’, VERSIONS => 2
为当前表删除列族:
hbase(main):002:0> alter ‘user’, ‘delete’ => ‘CF2’
禁用一张表/启用一张表
删除一张表,记得在删除表之前必须先禁用
禁用表-删除表-创建表