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What is the difference between Column and Column family?

Created: Nov 30, 2019 06:02:50Latest reply: Jul 11, 2022 03:29:24 537 6 0 0 0
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Hi, community

What is the difference between Column and Column family in HBase? Thanks.

  • x
  • convention:

Featured Answers
little_fish
Admin Created Nov 30, 2019 06:05:39

Dear,


Column

Column is one of HBase Table dimensions. A column name has the form "<family>:<label>" where <family> and <label> can be arbitrary byte arrays. A table enforces its set of <family>s (called "column families").


Column family

Column family is a predefined arbitrary set of columns and stored in HBase Schema. To create some column in family you should create family first. A column family regroups data of a same nature in HBase and has no constraint on the type. For each Row data in one Column family is physically stored at one server. Each Column family is attributes like: Compression, Timestamps, Block Cache and etc.


Hope this can help you.

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  • x
  • convention:

Axe_Z
Axe_Z Created Dec 18, 2019 01:01:40 (0) (0)
useful  
Navin_kay
Navin_kay Created Jul 11, 2022 03:28:50 (0) (0)
good  
All Answers
little_fish
little_fish Admin Created Nov 30, 2019 06:05:39

Dear,


Column

Column is one of HBase Table dimensions. A column name has the form "<family>:<label>" where <family> and <label> can be arbitrary byte arrays. A table enforces its set of <family>s (called "column families").


Column family

Column family is a predefined arbitrary set of columns and stored in HBase Schema. To create some column in family you should create family first. A column family regroups data of a same nature in HBase and has no constraint on the type. For each Row data in one Column family is physically stored at one server. Each Column family is attributes like: Compression, Timestamps, Block Cache and etc.


Hope this can help you.

View more
  • x
  • convention:

Axe_Z
Axe_Z Created Dec 18, 2019 01:01:40 (0) (0)
useful  
Navin_kay
Navin_kay Created Jul 11, 2022 03:28:50 (0) (0)
good  
Phany
Phany Created Nov 30, 2019 06:09:24

thanks
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  • x
  • convention:

Navin_kay
Navin_kay Created Jul 11, 2022 03:28:56 (0) (0)
note  
chantha
chantha Created Jul 11, 2022 03:29:24

good one
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  • convention:

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