Data Models into Database Designs When the parent entity is required and the parent has a surrogate key, update actions can be ignored. False True False True 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. a surrogate key a foreign key the primary key any alternate key a surrogate key a foreign key the primary key any alternate key ANSWER DOWNLOAD EXAMIANS APP
Data Models into Database Designs (STREET ADDRESS, CITY, STATE, ZIP) is an ideal primary key. False True False True ANSWER DOWNLOAD EXAMIANS APP
Data Models into Database Designs An intersection table is required to represent M:N relationships. False True False True 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): composite key. surrogate key. foreign key. primary key. composite key. surrogate key. foreign key. primary key. ANSWER DOWNLOAD EXAMIANS APP
Data Models into Database Designs All primary keys are required. True False True False ANSWER DOWNLOAD EXAMIANS APP
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