Data Models into Database Designs For every relationship, how many possible sets of minimum cardinalities are there? Three Four Two Six Three Four Two Six ANSWER DOWNLOAD EXAMIANS APP
Data Models into Database Designs All primary keys are required. True False True False ANSWER DOWNLOAD EXAMIANS APP
Data Models into Database Designs When the parent entity is required and the parent has a surrogate key, update actions can be ignored. False True False True 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 Null status Default value Data constraints Data type Null status Default value Data constraints ANSWER DOWNLOAD EXAMIANS APP
Data Models into Database Designs Each entity is represented as a(n): attribute. file. table. tuple. attribute. file. table. tuple. ANSWER DOWNLOAD EXAMIANS APP
Data Models into Database Designs A primary key should be defined as: None of these NULL. Either of the above can be used. NOT NULL. None of these NULL. Either of the above can be used. NOT NULL. ANSWER DOWNLOAD EXAMIANS APP
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