Column Oriented Databases
A column oriented database, rather a columnar database is a DBMS (Database Management System) that stores
data in columns instead of rows. A columnar database aims to efficiently write and read data to and from hard disk storage to
speed up the time to execute a query. A column-store is a physical concept. Here, I primarily focus on what a columnar
database is, how it works, its advantages, disadvantages and applications at current times. In due course, the top three market
selling columnar databases are discussed with their features. Thus, it is seen that, columnar database is an emerging concept
which has high prospect in coming future.
Index Terms - DBMS, Columnar stores, Vertical partitioning