Abstract
Role Based Access Control (RBAC) is a mechanism to restrict access to unauthorized users for security of computer systems. Many organizations have adopted non-relational databases which are generally referred to as NoSQL databases. Security issues are the main concerns, as sensitive data is stored in both Cloud Databases and NoSQL Databases, especially access control to those data by unauthorized users. The working conditions and characteristics of RBAC of different Cloud Databases and NoSQL Databases vary. The main objective of this paper is to give clear-cut idea about RBAC in different Cloud Databases and NoSQL Databases. As a consequence, we have compared the RBACs of the most popular Cloud Databases Oracle 12c, Microsoft SQL Azure and NoSQL Databases MongoDB, Cassandra. We have presented the extensive comparative study of Role Based Access Control Model in Cloud Databases and NoSQL Databases under the specific parameters.
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