Data Models into Database Designs Which of the following situation requires the use of ID-dependent entities? Archetype/instance relationships only All of these Association relationships only Multivalued attributes only Archetype/instance relationships only All of these Association relationships only Multivalued attributes only 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 constraints Data type Default value Null status Data constraints Data type Default value Null status ANSWER DOWNLOAD EXAMIANS APP
Data Models into Database Designs For every relationship, how many possible types of actions are there when enforcing minimum cardinalities? Six Four Three Two Six Four Three Two 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? An intrarelation constraint A domain constraint An interrelation constraint A range constraint An intrarelation constraint A domain constraint An interrelation constraint A range constraint ANSWER DOWNLOAD EXAMIANS APP
Data Models into Database Designs Surrogate keys have much meaning for users. True False True False ANSWER DOWNLOAD EXAMIANS APP
Data Models into Database Designs An intersection table is required to represent M:N relationships. True False True False ANSWER DOWNLOAD EXAMIANS APP
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