Data Models into Database Designs An ideal primary key is short, numeric and seldom changing. False True False True ANSWER DOWNLOAD EXAMIANS APP
Data Models into Database Designs When the child entity is required, we are restricted from creating a new parent row without also creating a corresponding child row at the same time. False True False True ANSWER DOWNLOAD EXAMIANS APP
Data Models into Database Designs In 1:N relationships, which entity becomes the parent entity is arbitrary. True False True False ANSWER DOWNLOAD EXAMIANS APP
Data Models into Database Designs Which of the following situation requires the use of ID-dependent entities? Multivalued attributes only Archetype/instance relationships only All of these Association relationships only Multivalued attributes only Archetype/instance relationships only All of these Association relationships only ANSWER DOWNLOAD EXAMIANS APP
Data Models into Database Designs For every relationship, there are six possible sets of minimum cardinalities. True False True False ANSWER DOWNLOAD EXAMIANS APP
Data Models into Database Designs A primary key should be defined as: None of these NOT NULL. NULL. Either of the above can be used. None of these NOT NULL. NULL. Either of the above can be used. ANSWER DOWNLOAD EXAMIANS APP
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