ADVANTAGES AND CHALLENGES OF NOSQL COMPARED TO SQL DATABASES - A SYSTEMATIC LITERATURE REVIEW

Abstract

Relational data models represent a long-standing standard in database technologies. A unique language for writing queries, fixed schema, vertical scalability, consistency, durability are just some of their basic features. However, the development of information technologies and intensive recording of data leads to the emergence of Big Data, where problems arise when using SQL databases. Large amounts of semi-structured and unstructured data cannot be stored in a simple way, so new systems in data storage are being developed - NoSQL databases. The aim of this paper is to present the advantages and challenges of NoSQL compared to SQL databases through a systematic literature review. Based on the set research questions, the main features where NoSQL databases have advantages were formed, but the challenges they face during implementation and operation in relation to SQL databases were also presented. The research results were presented and interpreted.