Data Models into Database Designs For every relationship, how many possible types of actions are there when enforcing minimum cardinalities? Two Four Six Three Two Four Six Three ANSWER DOWNLOAD EXAMIANS APP
Data Models into Database Designs If a relationship has a cascade updates constraint, then if ________ in the parent table is changed, then the same change will automatically be made to any corresponding foreign key value. any alternate key a surrogate key the primary key a foreign key any alternate key a surrogate key the primary key a foreign key ANSWER DOWNLOAD EXAMIANS APP
Data Models into Database Designs When transforming an entity-relationship model into a relational database design, each entity is represented as a table. 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. composite key. surrogate key. primary key. foreign key. composite key. surrogate key. primary key. ANSWER DOWNLOAD EXAMIANS APP
Data Models into Database Designs Which of the following data constraints would be used to specify that the value of a cell in one column must be less than the value of a cell in another column in the same row of the same table? A range constraint A domain constraint An interrelation constraint An intrarelation constraint A range constraint A domain constraint An interrelation constraint An intrarelation constraint 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
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