リレーショナルDBMS でぃうびいえむえすではありません
rirēshonarudiubiiemuesudewārimasen

Noun
Desu Copula
Negation Auxiliary

The polite negative form of リレーショナルDBMS

1. Is not a relational DBMS.; It is not a relational DBMS.

Negative
Polite
Formal Register
Computing