Data Models into Database Designs Each entity is represented as a(n): attribute. file. tuple. table. attribute. file. tuple. table. ANSWER DOWNLOAD EXAMIANS APP
Data Models into Database Designs Which of the following column properties specifies whether or not cells in a column must contain a data value? Data constraints Default value Null status Data type Data constraints Default value Null status Data type ANSWER DOWNLOAD EXAMIANS APP
Data Models into Database Designs When the parent entity is required and the parent has a surrogate key, update actions can be ignored. True False True False ANSWER DOWNLOAD EXAMIANS APP
Data Models into Database Designs A foreign key is: 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. used to define data types. ANSWER DOWNLOAD EXAMIANS APP
Data Models into Database Designs Which is not true about surrogate keys? They have meaning to the user. They are fixed. They are short. They are numeric. They have meaning to the user. They are fixed. They are short. They are numeric. ANSWER DOWNLOAD EXAMIANS APP
Data Models into Database Designs For every relationship, how many possible sets of minimum cardinalities are there? Two Three Six Four Two Three Six Four ANSWER DOWNLOAD EXAMIANS APP
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