Data Models into Database Designs All primary keys are required. False True False True ANSWER DOWNLOAD EXAMIANS APP
Data Models into Database Designs For every relationship, how many possible types of actions are there when enforcing minimum cardinalities? Four Three Six Two Four Three Six Two ANSWER DOWNLOAD EXAMIANS APP
Data Models into Database Designs Which is not true about surrogate keys? They are short. They are numeric. They are fixed. They have meaning to the user. They are short. They are numeric. They are fixed. They have meaning to the user. 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 Data constraints Null status Default value Data type Data constraints Null status Default value 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 Cascading updates refers to child rows being automatically deleted when a parent row is deleted. True False True False ANSWER DOWNLOAD EXAMIANS APP
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