Column Format in HBase Vs Row Format in RDBMS

HBase is NoSQL format having Column oriented form. HBase will take data in Key, Value pairs. Here Key Value are both in the form of byte array. HBase can purely work with real time data. Unlike other components in Hadoop like Hive, Pig and Sqoop, Hbase has no data types. Byte Array is the sole data type in HBase. We don't have any data types in HBase. It is built on top of HDFS. It will keep data in encrypted format.

Employee table in RDBMS (Row Format)

empid	Name	Salary
101	Ajay	50000
102	Vijay	60000
103	Kumar	70000

Employee table in HBase (Column Format)

empid	101	102	102
Name	Ajay	Vijay	Kumar
Salary	50000	60000	70000

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