Alternative Approaches to Data Storing and Processing

Most data processing applications store data using a Database Management System (DBMS). The most widely used DBEs belong to relational. In these engines, data is stored in a number of tables. One of the main relational DBMS interface technologies is Structured Query Language (SQL), but there are alternative approaches, like Query By Example (QBE). Since relational databases have poor performance on some types of data, there have appeared other approaches. They in unite called "No-SQL databases", although these approaches are very different from each other. Graph-based and document-based DBMS belongs to them. In this paper, we describe common implementations of relational and No-SQL DBMS and compare their capabilities using a practical example.