2、SHELL操作

命令：hbase shell

显示表：list

创建表：create ‘tb_name‘,‘column_family_1‘,‘column_family_2‘,...;

或者 create ‘user‘, {NAME => ‘column_family_1‘, VERSIONS => ‘3‘}

插入数据：put ‘tb_name‘,‘rk_on‘,‘column_family : key‘,‘value‘

获取数据：

获取所有数据：get ‘tb_name‘,‘rk_on‘

获取列族数据：get ‘tb_name‘,‘rk_on‘,‘column_family‘

或者 get ‘tb_name‘, ‘rk_on‘, {column=> [‘cf_name1‘, ‘cf_name2‘]}

获取列族中列数据：get ‘tb_name‘,‘rk_on‘,‘column_family:key‘,‘column_family:column2‘,..

或者 get ‘tb_name‘, ‘rk_on‘, {COLUMN => [‘cf_name:key‘, ‘cf_name:key‘]}

获取各个版本的数据

列族版本：get ‘tb_name‘, ‘rk_on‘, {COLUMN => ‘cf_name1‘, VERSIONS => Number}

列版本：get ‘tb_name‘, ‘rk_on‘, {COLUMN => ‘cf_name1:c_name‘, VERSIONS => Number}

时间范围内的列版本：get ‘user‘, ‘rk0001‘, {COLUMN => ‘cfn:key‘, VERSIONS => Number, TIMERANGE => [1392368783980, 1392380169184]}       

VERSION：查询版本数量

TIMERANGE：时间戳范围

完全匹配：get ‘tb_name‘, ‘rk_on‘, {FILTER => "ValueFilter(=, ‘binary:value‘)"}

rk_on中含有value的信息

匹配：get ‘tb_name‘, ‘rk_on‘, {FILTER => "(ValueFilter(=,‘substring:a‘))"}

列标示符中含有a的信息

scan查询：

scan ‘tb_name‘

查询user表中列族为cfn的信息
        scan ‘tb_name‘, {COLUMNS => ‘cfn‘}
        scan ‘tb_name‘, {COLUMNS => ‘cfn‘, RAW => true, VERSIONS => 5}
        scan ‘tb_name‘, {COLUMNS => ‘cfn‘, RAW => true, VERSIONS => 3}
        查询user表中列族为cfn1和cfn2的信息
        scan ‘user‘, {COLUMNS => [‘cfn1‘, ‘cfn2‘]}
        scan ‘user‘, {COLUMNS => [‘cfn1:key1‘, ‘cfn2:key2‘]}

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 ‘people‘, {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]}
        

删除数据

删除user表row key为rk0001，列标示符为info:name的数据
        delete ‘people‘, ‘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

清空user表中的数据
truncate ‘people‘

修改表结构
首先停用user表（新版本不用）
disable ‘user‘

添加两个列族f1和f2
alter ‘people‘, NAME => ‘f1‘
alter ‘user‘, NAME => ‘f2‘

启用表
enable ‘user‘

###disable ‘user‘(新版本不用)
删除一个列族：
alter ‘user‘, NAME => ‘f1‘, METHOD => ‘delete‘ 或 alter ‘user‘, ‘delete‘ => ‘f1‘

添加列族f1同时删除列族f2
alter ‘user‘, {NAME => ‘f1‘}, {NAME => ‘f2‘, METHOD => ‘delete‘}

将user表的f1列族版本号改为5
alter ‘people‘, NAME => ‘info‘, VERSIONS => 5

启用表
enable ‘user‘

删除表
disable ‘user‘
drop ‘user‘

2、API：