Data Models into Database Designs An intersection table is required to represent M:N relationships. False True False True ANSWER DOWNLOAD EXAMIANS APP
Data Models into Database Designs A primary key should be defined as: NOT NULL. None of these Either of the above can be used. NULL. NOT NULL. None of these Either of the above can be used. NULL. ANSWER DOWNLOAD EXAMIANS APP
Data Models into Database Designs Which of the following situation requires the use of ID-dependent entities? Multivalued attributes only All of these Archetype/instance relationships only Association relationships only Multivalued attributes only All of these Archetype/instance relationships only Association relationships only ANSWER DOWNLOAD EXAMIANS APP
Data Models into Database Designs When the parent entity is required, a new child row can always be inserted. False True False True ANSWER DOWNLOAD EXAMIANS APP
Data Models into Database Designs Which of the following data constraints would be used to specify that the value of cells in a column must be one of a specific set of possible values? A range constraint An intrarelation constraint An interrelation constraint A domain constraint A range constraint An intrarelation constraint An interrelation constraint A domain constraint ANSWER DOWNLOAD EXAMIANS APP
Data Models into Database Designs Which of the following column properties specifies whether or not cells in a column must contain a data value? Data type Default value Data constraints Null status Data type Default value Data constraints Null status ANSWER DOWNLOAD EXAMIANS APP
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