Final answer:
To be minimally relational, a DBMS must support the 'select', 'project', and 'join' operations. These are essential for retrieving, manipulating, and relating data within a relational database.
Step-by-step explanation:
The student is asking about the foundational operations that must be supported by a database management system (DBMS) to be considered minimally relational. To be minimally relational, the DBMS must support the key relational operators select, project, and join. The 'select' operator is used to retrieve tuples (rows) that satisfy a given condition from a relation (table). 'Project' is used to create a new relation by choosing certain columns from a table. 'Join' combines tuples from different relations based on a related common attribute. Together, these operations allow for the manipulation and querying of a relational database in a flexible manner, providing the foundational functionality for interacting with stored data in a relational database system.
To be considered minimally relational, a DBMS must support the key relational operators select, project, and join.
The select operator retrieves data from a table based on a specified condition. The project operator selects specific columns of data from a table, excluding the others. The join operator combines rows from two or more tables based on a related column between them.
For example, let's consider a scenario where we have two tables 'Customers' and 'Orders'. Using the key relational operator join, we can combine the columns 'CustomerID' from the 'Customers' table and 'OrderID' from the 'Orders' table to retrieve relevant information such as the customer's name and their corresponding orders.