Data Models into Database Designs Each entity is represented as a(n): table. attribute. tuple. file. table. attribute. tuple. file. ANSWER DOWNLOAD EXAMIANS APP
Data Models into Database Designs For every relationship, how many possible types of actions are there when enforcing minimum cardinalities? Three Four Two Six Three Four Two Six ANSWER DOWNLOAD EXAMIANS APP
Data Models into Database Designs The terms alternate key and candidate key mean the same thing. True False True False ANSWER DOWNLOAD EXAMIANS APP
Data Models into Database Designs When the parent entity is required, a new child row can always be inserted. True False True False 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? Default value Null status Data constraints Data type Default value Null status Data constraints Data type ANSWER DOWNLOAD EXAMIANS APP
Data Models into Database Designs When the parent entity is required, a new parent row can always be inserted. True False True False ANSWER DOWNLOAD EXAMIANS APP