Data Models into Database Designs For every relationship, there are six possible sets of minimum cardinalities. False True False True ANSWER DOWNLOAD EXAMIANS APP
Data Models into Database Designs A foreign key is used to implement relationships between tables. False True False True ANSWER DOWNLOAD EXAMIANS APP
Data Models into Database Designs Which of the following situation requires the use of ID-dependent entities? Association relationships only All of these Multivalued attributes only Archetype/instance relationships only Association relationships only All of these Multivalued attributes only Archetype/instance relationships only 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 A foreign key is: used to define data types. All of these used to define null status. a column containing the primary key of another table. used to define data types. All of these used to define null status. a column containing the primary key of another table. ANSWER DOWNLOAD EXAMIANS APP
Data Models into Database Designs Which is not true about surrogate keys? 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. They are short. ANSWER DOWNLOAD EXAMIANS APP
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