Commonly used shell commands in HBASE, add, delete and modify methods

Time:2019-4-3

1. Give the data of this operation first.


create 'student','info','address'
put 'student','1','info:age','20'
put 'student','1','info:name','wang'
put 'student','1','info:class','1'
put 'student','1','address:city','zhengzhou'
put 'student','1','address:area','High-tech zone'
put 'student','2','info:age','21'
put 'student','2','info:name','yang'
put 'student','2','info:class','1'
put 'student','2','address:city','beijing'
put 'student','2','address:area','CBD'
put 'student','3','info:age','22'
put 'student','3','info:name','zhao'
put 'student','3','info:class','2'
put 'student','3','address:city','shanghai'
put 'student','3','address:area','pudong'
scan 'student'

2. First execute, create tables, add data operations, execute scripts / bin / HBase shell. / student. txt, and then view the content scan’student’


hbase(main):001:0> scan 'student'
ROW      COLUMN+CELL
 1       column=address:area, timestamp=1491533426260, value=High-tech zone
 1       column=address:city, timestamp=1491533426239, value=zhengzhou
 1       column=info:age, timestamp=1491533426179, value=20
 1       column=info:class, timestamp=1491533426218, value=1
 1       column=info:name, timestamp=1491533426211, value=wang
 2       column=address:area, timestamp=1491533426297, value=CBD
 2       column=address:city, timestamp=1491533426292, value=beijing
 2       column=info:age, timestamp=1491533426269, value=21
 2       column=info:class, timestamp=1491533426287, value=1
 2       column=info:name, timestamp=1491533426277, value=yang
 3       column=address:area, timestamp=1491533426329, value=pudong
 3       column=address:city, timestamp=1491533426323, value=shanghai
 3       column=info:age, timestamp=1491533426305, value=22
 3       column=info:class, timestamp=1491533426317, value=2
 3       column=info:name, timestamp=1491533426311, value=zhao
3 row(s) in 0.1940 seconds

3. Modification is also done with the put command, that is, to re-add the content to cover the previous content.

Format put't1','r1','c1','value'
Commands put'student','1','info: age','18'
Result
hbase(main):010:0> get 'student','1'
COLUMN      CELL
 address:area    timestamp=1491533426260, value=High-tech zone
 address:city    timestamp=1491533426239, value=zhengzhou
 info:age     timestamp=1491533823331, value=18
 info:class    timestamp=1491533426218, value=1
 info:name     timestamp=1491533426211, value=wang
5 row(s) in 0.0110 seconds

4. Delete operation, which is divided into delete cell content and delete whole line

Cell


hbase(main):012:0> delete 'student','1','info:name'
0 row(s) in 0.0800 seconds

hbase(main):014:0> get 'student','1'
COLUMN      CELL
 address:area    timestamp=1491533426260, value=High-tech zone
 address:city    timestamp=1491533426239, value=zhengzhou
 info:age     timestamp=1491533823331, value=18
 info:class    timestamp=1491533426218, value=1
4 row(s) in 0.0120 seconds

Whole line


hbase(main):023:0> deleteall 'student','1'
0 row(s) in 0.0260 seconds

hbase(main):024:0> get 'student','1'
COLUMN      CELL
0 row(s) in 0.0070 seconds

5, query

Single line query


hbase(main):026:0> get 'student','2'
COLUMN      CELL
 address:area    timestamp=1491533426297, value=CBD
 address:city    timestamp=1491533426292, value=beijing
 info:age     timestamp=1491533426269, value=21
 info:class    timestamp=1491533426287, value=1
 info:name     timestamp=1491533426277, value=yang
5 row(s) in 0.0190 seconds

Specified column family


hbase(main):028:0> get 'student', '2', {COLUMN => 'info'}
COLUMN      CELL
 info:age     timestamp=1491533426269, value=21
 info:class    timestamp=1491533426287, value=1
 info:name     timestamp=1491533426277, value=yang
3 row(s) in 0.0150 seconds

Specified column name


hbase(main):029:0> get 'student', '2', {COLUMN => 'info:age'}
COLUMN      CELL
 info:age     timestamp=1491533426269, value=21
1 row(s) in 0.0080 seconds

Using scan, specify startRow


 hbase(main):031:0> scan 'student', {COLUMNS => ['info:age', 'address'], LIMIT => 10, STARTROW => '2'}
ROW      COLUMN+CELL
 2       column=address:area, timestamp=1491533426297, value=CBD
 2       column=address:city, timestamp=1491533426292, value=beijing
 2       column=info:age, timestamp=1491533426269, value=21
 3       column=address:area, timestamp=1491533426329, value=pudong
 3       column=address:city, timestamp=1491533426323, value=shanghai
 3       column=info:age, timestamp=1491533426305, value=22
2 row(s) in 0.0190 seconds

Scan specifies filtering


hbase(main):005:0> scan 'student',{FILTER=>"(TimestampsFilter (1491533426297))"}
ROW      COLUMN+CELL
 2       column=address:area, timestamp=1491533426297, value=CBD
1 row(s) in 0.0170 seconds

Above this HBASE shell command commonly used, add, delete and modify the search method is a small edition to share with you all the content, I hope to give you a reference, but also hope that you support more developpaer.

Recommended Today

Go carbon version 1.2.0 has been released to improve and optimize the multi scenario support for orm

Carbon is a lightweight, semantic and developer friendly golang time processing library, which supports chain call, lunar calendar, Gorm, xorm and other mainstream orm If you think it’s good, please give it to a star github:github.com/golang-module/carbon gitee:gitee.com/go-package/carbon Installation and use //Using GitHub Library go get -u github.com/golang-module/carbon import ( “github.com/golang-module/carbon”) //Using gitee Library go get […]