Introduction to Database System Which type of entity has its relationship to another entity determined by an attribute in that other entity called a discriminator? Supertype entity Archetype entity Instance entity Subtype entity Supertype entity Archetype entity Instance entity Subtype entity ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System If a piece of data is stored in two places in the database, then it can be more easily accessed storage space is wasted None of these changing the data is one spot will cause data inconsistency both (a) and (b) it can be more easily accessed storage space is wasted None of these changing the data is one spot will cause data inconsistency both (a) and (b) ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System The distinguishable parts of a record are called None of these fields files data database None of these fields files data database ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System The relational model uses some unfamiliar terminology. A tuple is equivalent to a data item data base record field data item data base record field ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System A computer file can be best described as None of these a single data item a random collection of data items a general collection of data items an orderly collection of data items None of these a single data item a random collection of data items a general collection of data items an orderly collection of data items ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System Entity instances are associated by relationship classes. False True False True ANSWER DOWNLOAD EXAMIANS APP
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