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 The DBMS allows surrogate keys to be changed. True False True False 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): foreign key. primary key. composite key. surrogate key. foreign key. primary key. composite key. surrogate key. ANSWER DOWNLOAD EXAMIANS APP
Data Models into Database Designs For every relationship, how many possible sets of minimum cardinalities are there? Three Two Four Six Three Two Four Six ANSWER DOWNLOAD EXAMIANS APP
Data Models into Database Designs When the parent entity is required, cascading updates and cascading deletions should be allowed or the associated actions on the parent should be prohibited. True False True False ANSWER DOWNLOAD EXAMIANS APP
Data Models into Database Designs Which of the following situation requires the use of ID-dependent entities? All of these Multivalued attributes only Association relationships only Archetype/instance relationships only All of these Multivalued attributes only Association relationships only Archetype/instance relationships only ANSWER DOWNLOAD EXAMIANS APP
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