Database Management System Question
Database Management System Question With Answer & Solution
Que. - What is a relationship called when it is maintained between two entities?
Que. - Which of the following is a low level operator?
Que. - Key to represent relationship between tables is called
Que. - A window into a portion of a database is
Que. - A primary key is combined with a foreign key creates
Que. - The entity set person is classified as student and employee. This process is called
Que. - Which relationship is used to represent a specialization entity?
Que. - The refinement from an initial entity set into successive levels of entity subgroupings represents a design process in which distinctions are made explicit.
Que. - There are similarities between the instructor entity set and the secretary entity set in the sense that they have several attributes that are conceptually the same across the two entity sets: namely, the identifier, name, and salary attributes. This process is called
Que. - If an entity set is a lower-level entity set in more than one ISA relationship, then the entity set has
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