On the basis of reliability, rational models are useful but not in terms of systems which involve huge amount of data; in such cases, non-relational models are much more useful. To store large chunks of data, NoSQL databases are used. NoSQL databases are scalable and wide ranged because they are non-relationally distributed.
In relational databases, it was not possible to manage data which involved very large number of Big Data applications hence the concept of NoSQL database was introduced.
There are a lot of advantages of NoSQL which not only involve its own features but also some features of relational database management system. The severe benefit of NoSQL database is that it is an open source system which helps to adapt many numbers of features for newly generated applications.
This paper is focused on understanding the concepts of non-relational database system architecture with relational database system architecture and figure out the advantages and disadvantages of both simultaneously.
This paper will explore the service models and background and also presents the existing research issues implicating in cloud computing such as security, privacy, reliability, and so on. Cloud Computing, Architecture and Characteristics of Cloud Computing and also different Services and Deployment models provided in Cloud Computing. This paper provides a better understanding of the cloud computing and identifies important research issues in this rapidly growing area of computer science.
In this document, a language, HYPOL is described. HYPOL represents efforts towards arriving atan integrated language, unified from the points of view of computation, data base definition/manipulation and access control. In arriving at this language the capability concept, as it exists in operating systems, has been used to define access control requirements of a user. Further, the relation has been treated as a sequentisl file of records with appropriste operations defined on it. The type data submodel of HYPOL defines, in a unified manner, the part of the data base seen by a user as well as his access rights over it. Facilities exist to dynamically create new data submodels or to destroy existing ones. Care has been taken to ensure that the language HYPOL helps in writing structured programs.
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