HBase Shell Get access commonly used tips

At work, sometimes simply want to look at HBase table values ​​for some key indicators, and this time we can not now write Java code to view the following a few tips you might frequently used.

1. There are many columns in a row, just 2 to obtain the specified data 3

hbase> get 't1', 'r1', ['f:c1', 'f:c2', 'f:c3']

2. want to see multiple versions of a data field

hbase> get 't1', 'r1', {COLUMN => 'f:c1', VERSIONS => 4}

3. want to see is of Chinese or hexadecimal numbers

hbase> put 't1','r1','f:c1','中国'

hbase> get 't1','r1','f:c1:toString'
COLUMN             CELL                                                                                                                                          
f:c1     timestamp=1585635275771, value=中国                                                                                                         
1 row(s) in 0.0180 seconds

For Int type, Long type value, support toInt | toLong syntax.

4. quickly obtain all the columns in a column group

使用列族过滤器：
1. 精确匹配列族
hbase> get 't1,'r1',FILTER=>"FamilyFilter(=,'binary:f')"

2. 模糊匹配列族
hbase> get 't1,'r1',FILTER=>"FamilyFilter(=,'substring:f')"

5. The data acquisition column name prefix

hbase> get 't1','r1',FILTER=>"ColumnPrefixFilter('c')"

Unusual syntax is no longer discussed.

Please indicate the source!