The HBase data model
Storage of data in HBase is column oriented, in the form of a multi-hierarchical Key-Value map. The HBase Data Model is very flexible and its beauty is to add or remove column data on the fly, without impacting the performance. HBase can be used to process semi-structured data. It doesn't have any specific data types as the data is stored in bytes.
Logical components of a data model
The HBase data model has some logical components which are as follows:
Tables
Rows
Column Families/Columns
Versions/Timestamp
Cells
The HBase table is shown in the following figure:
Let's take a look at these components in detail:
Tables: A Table in HBase is actually more logical than physical. An HBase Table can be described as a collection of rows. The data of a Table is presented in different, multiple Regions, and is distributed by the range of rowkey.
Rows: A Row is just a logical representation in HBase. Physically, the data is not stored in row, but in columns. Rows in HBase are combinations...
