Data Models into Database Designs Which is not true about surrogate keys? 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. They are numeric. ANSWER DOWNLOAD EXAMIANS APP
Data Models into Database Designs In 1:N relationships, which entity becomes the parent entity is arbitrary. False True False True 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 For every relationship, how many possible sets of minimum cardinalities are there? Two Four Three Six Two Four Three 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. False True False True ANSWER DOWNLOAD EXAMIANS APP
Data Models into Database Designs A primary key should be defined as: NULL. NOT NULL. Either of the above can be used. None of these NULL. NOT NULL. Either of the above can be used. None of these ANSWER DOWNLOAD EXAMIANS APP
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