Data Models into Database Designs All primary keys are required. False True False True 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 Which of the following column properties would be used to specify that cells in a column must contain a monetary value that is less than another monetary value in the same row? 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 A unique, DBMS-supplied identifier used as the primary key of a relation is called a(n): surrogate key. composite key. foreign key. primary key. surrogate key. composite key. foreign key. primary key. ANSWER DOWNLOAD EXAMIANS APP
Data Models into Database Designs When the parent entity is required, a new parent row can always be inserted. False True False True ANSWER DOWNLOAD EXAMIANS APP
Data Models into Database Designs When the child entity is required, we are restricted from creating a new parent row without also creating a corresponding child row at the same time. True False True False ANSWER DOWNLOAD EXAMIANS APP
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