1) Database management tools (DBMS) are facing a trend toward diversification as the era demands, with many different database systems existing that have high surface-level similarities in functions and attributes. 2) By 2025, the amount of data generated worldwide will increase dramatically from 23 zettabytes in 2017 to 175 zettabytes, with approximately 30% of the data being real-time data. 3) In selecting a database, it is important to understand the inherent characteristics and properties of each system and choose a DB that is naturally suited for the target domain or workload.