Introduction to Database System Relationship classes are associations between entity classes. True False True False ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System An-owner-member set in the CODASYL specifications may have only one owner but many owner occurrences more than one member but only one occurrence per member All of the listed here only one member but many member occurrence only one owner but many owner occurrences more than one member but only one occurrence per member All of the listed here only one member but many member occurrence ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System A computer file can be best described as a general collection of data items a random collection of data items None of these an orderly collection of data items a single data item a general collection of data items a random collection of data items None of these an orderly collection of data items a single data item ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System What name is given to the collection of facts, items of information or data which are related in some way? Database Information provider Information tree Directory information Database Information provider Information tree Directory information ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System Which type of entity cannot exist in the database unless another type of entity also exists in the database, but does not require that the identifier of that other entity be included as part of its own identifier? ID- independent entity Strong entity Weak entity ID-dependent entity ID- independent entity Strong entity Weak entity ID-dependent entity ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System In a relation, the columns are sometimes called "attributes". False True False True ANSWER DOWNLOAD EXAMIANS APP
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