To be considered minimally relational, the dbms must support the key relational operators project, and join.

select.

Select,project, and join.

The answer is select for this question. The question is so simple that everyone can understand.

Further Explanation:

Database management System:

A database the board framework (DBMS) is a product bundle intended to characterize, control, recover and oversee information in a database. A DBMS for the most part controls the information itself, the information group, field names, record structure and document structure. It likewise characterizes guidelines to approve and control this information.

Select in dbms:

A SELECT proclamation recovers at least zero lines from at least one database tables or database sees. In many applications, SELECT is the most usually utilized information question language (DQL) direction. As SQL is a revelatory programming language, SELECT inquiries indicate an outcome set, yet don't determine how to compute it.

Join:

Participates in DBMS and Types (Inner, Outer, Theta, Equal, Left, Right): Joins can be just characterized as the consolidating or blending the related tuples from the two distinct relations into a solitary sort.

Types of Joins:

It makes a set that can be spared as a table or utilized as it may be. A JOIN is a methods for consolidating segments from one (self-join) or more tables by utilizing esteems basic to each.  

Answer Details:

Subject: Physics

Level: High School.

Key Words:

Database management System:

Select in dbms:

Types of Joins:

Join:

For further Evaluation:

it becomes positively charged by charging it

layers of the earth affect the waves and these effects are seen on instruiments such as seimometers