From AWS, Google and Oracle to Databricks, IBM and Snowflake, here are the top 16 vendors leading the cloud database management systems market, according to Gartner’s new Magic Quadrant.

A hierarchical database management system allows data to be stored in such a way that one data item is a subunit of other data. The system is ideal for storing data that has attributes and features.

This paper addresses some aspects of the problem of integrating accounting and information systems theories. Previous attempts at integration, especially the matrix and tree-theoretic approaches, are ...