创建王者荣耀表的需求:
1.进入Shell
[root@hadoop01 ~]# hbase shell
HBase Shell; enter 'help<RETURN>' for list of supported commands.
Type "exit<RETURN>" to leave the HBase Shell
Version 1.3.1, r930b9a55528fe45d8edce7af42fef2d35e77677a, Thu Apr 6 19:36:54 PDT 2017
2.查看有哪些表
hbase(main):001:0> list
TABLE
scores
1 row(s) in 1.0400 seconds
=> ["scores"]
3.创建gamer表
hbase(main):002:0> create 'TencentGames','grade','attribute'
0 row(s) in 6.7000 seconds
=> Hbase::Table - TencentGames
4.插入表数据
hbase(main):003:0> put 'TencentGames','shangguan','grade','1'
0 row(s) in 0.3330 seconds
hbase(main):004:0> put 'TencentGames','shangguan','attribute:Master','master'
0 row(s) in 0.4780 seconds
hbase(main):003:0> put 'TencentGames','daji','grade','2'
0 row(s) in 0.2350 seconds
hbase(main):004:0> put 'TencentGames','daji','attribute:Master','master'
0 row(s) in 0.0250 seconds
5.查询数据
a）查询某行记录
或者：获取一个rowkey，一个列族中一个列的所有数据
hbase(main):009:0> get 'TencentGames','daji','attribute:Master'
COLUMN CELL
attribute:Master timestamp=1587376586228, value=master
1 row(s) in 0.0320 seconds
或者：获取一个rowkey，一个列族的所有数据
hbase(main):008:0> get 'TencentGames','daji','grade'
COLUMN CELL
grade: timestamp=1587376552594, value=2
1 row(s) in 0.0330 seconds
或者：获取一个rowkey的所有数据
hbase(main):007:0> get 'TencentGames','daji'
COLUMN CELL
attribute:Master timestamp=1587376586228, value=master
grade: timestamp=1587376552594, value=2
1 row(s) in 0.0780 seconds
b）扫描表
hbase(main):005:0> scan 'TencentGames'
ROW COLUMN+CELL
daji column=attribute:Master, timestamp=1587376586228, value=master
daji column=grade:, timestamp=1587376552594, value=2
shangguan column=attribute:Master, timestamp=1587376421031, value=master
shangguan column=grade:, timestamp=1587376287043, value=1
2 row(s) in 0.1230 seconds
c）查询表中的数据行数
hbase(main):006:0> count 'TencentGames'
2 row(s) in 0.0880 seconds
=> 2
6.修改数据
#修改一个rowkey下某个列的值
hbase(main):001:0> put 'TencentGames','daji','grade','3'
0 row(s) in 0.3720 seconds
hbase(main):002:0> scan 'TencentGames'
ROW COLUMN+CELL
daji column=attribute:Master, timestamp=1587376586228, value=master
daji column=grade:, timestamp=1587377498026, value=3
shangguan column=attribute:Master, timestamp=1587376421031, value=master
shangguan column=grade:, timestamp=1587376287043, value=1
2 row(s) in 0.0330 seconds
#通过timestamp来获取两个版本的数据
hbase(main):004:0> get 'TencentGames','daji',{COLUMN=>'attribute:Master',TIMESTAMP=>1587376586228}
COLUMN CELL
attribute:Master timestamp=1587376586228, value=master
1 row(s) in 0.0170 seconds
7.删除数据
a)删除行中的某个列值
hbase(main):023:0> delete 'TencentGames','daji','attribute:Master'
0 row(s) in 0.1830 seconds
b )删除行
hbase(main):028:0> delete 'TencentGames','daji','grade'
0 row(s) in 0.0070 seconds
c）删除表中的所有数据
truncate 'TencentGames'
8.查看表结构
hbase(main):005:0> desc 'TencentGames'
Table TencentGames is ENABLED
TencentGames
COLUMN FAMILIES DESCRIPTION
{NAME => 'attribute', BLOOMFILTER => 'ROW', VERSIONS => '1', IN_MEMORY => 'false', KEEP_DELETED_CELLS => 'FALSE', DATA_BLOCK_ENCODING => 'NONE', TTL => 'FOREVER', COMPRESS
ION => 'NONE', MIN_VERSIONS => '0', BLOCKCACHE => 'true', BLOCKSIZE => '65536', REPLICATION_SCOPE => '0'}
{NAME => 'grade', BLOOMFILTER => 'ROW', VERSIONS => '1', IN_MEMORY => 'false', KEEP_DELETED_CELLS => 'FALSE', DATA_BLOCK_ENCODING => 'NONE', TTL => 'FOREVER', COMPRESSION
=> 'NONE', MIN_VERSIONS => '0', BLOCKCACHE => 'true', BLOCKSIZE => '65536', REPLICATION_SCOPE => '0'}
2 row(s) in 0.8310 seconds
9.is_enabled和is_disabled来检查表是否被禁用。
hbase(main):006:0> is_enabled 'TencentGames'
true
0 row(s) in 0.1080 seconds
hbase(main):008:0> is_disabled 'TencentGames'
false
0 row(s) in 0.0180 seconds
hbase(main):009:0>
10.删除’lol’表的’assetsInfo’列簇
hbase(main):028:0> delete 'TencentGames','daji','grade'
0 row(s) in 0.0070 seconds
11.删除表
#如果直接删除会报错误：
#所以要先将表进行Disable 操作
hbase(main):029:0> disable 'TencentGames'
0 row(s) in 4.3610 seconds
hbase(main):030:0> drop 'TencentGames'
0 row(s) in 2.4520 seconds
hbase(main):031:0> list
TABLE
scores
1 row(s) in 0.1350 seconds
=> ["scores"]
hbase(main):032:0>
12.查看表是否存在
hbase(main):009:0> exists 'TencentGames'
Table TencentGames does exist
0 row(s) in 0.0240 seconds
hbase(main):010:0>
