Introduction to Database System The relational database model was created by E.F. Codd. True False True False ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System Which type of entity represents a logical generalization whose actual occurrence is represented by a second, associated entity? Subtype entity Archetype entity Instance entity Supertype entity Subtype entity Archetype entity Instance entity Supertype entity ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System A recursive relationship is a relationship between an archetype and an instance of that archetype. False True False True ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System If you want to group the records in the abc database, you could use the Jobcode as the _____. Index Update Sort Key Delete Index Update Sort Key Delete ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System The master list of an indexed file is sorted in ascending order both (b) and (c) None of these contains only a list of keys and record numbers has a number assigned to each record is sorted in ascending order both (b) and (c) None of these contains only a list of keys and record numbers has a number assigned to each record ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System In a one-to-many relationship, the entity that is on the one side of the relationship is called a(n) ________ entity. parent subtype instance child parent subtype instance child ANSWER DOWNLOAD EXAMIANS APP
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