Information security

Information security

  • Submitted By: tatsa
  • Date Submitted: 05/10/2014 6:09 AM
  • Category: Technology
  • Words: 5303
  • Page: 22

IJCSI International Journal of Computer Science Issues, Vol. 9, Issue 4, No 3, July 2012
ISSN (Online): 1694-0814


Cloud Databases: A Paradigm Shift in Databases
Indu Arora1 and Dr. Anu Gupta2

Department of Computer Science and Application,
MCM DAV College for Women, Chandigarh

Department of Computer Science and Application,
Panjab University, Chandigarh

Relational databases ruled the Information Technology (IT)
industry for almost 40 years. But last few years have seen sea
changes in the way IT is being used and viewed. Stand alone
applications have been replaced with web-based applications,
dedicated servers with multiple distributed servers and dedicated
storage with network storage. Cloud computing has become a
reality due to its lesser cost, scalability and pay-as-you-go model.
It is one of the biggest changes in IT after the rise of World Wide
Web. Cloud databases such as Big Table, Sherpa and SimpleDB
are becoming popular. They address the limitations of existing
relational databases related to scalability, ease of use and
dynamic provisioning. Cloud databases are mainly used for dataintensive applications such as data warehousing, data mining and
business intelligence. These applications are read-intensive,
scalable and elastic in nature. Transactional data management
applications such as banking, airline reservation, online ecommerce and supply chain management applications are writeintensive. Databases supporting such applications require ACID
(Atomicity, Consistency, Isolation and Durability) properties, but
these databases are difficult to deploy in the cloud. The goal of
this paper is to review the state of the art in the cloud databases
and various architectures. It further assesses the challenges to
develop cloud databases that meet the user requirements and
discusses popularly used Cloud databases.
Keywords: Cloud computing; Cloud Databases; Database


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