Data Models into Database Designs Which of the following columns is(are) are required in a table? A foreign key A surrogate key An alternate key A primary key A foreign key A surrogate key An alternate key A primary key ANSWER DOWNLOAD EXAMIANS APP
Data Models into Database Designs In a 1:1 relationship, the primary key placement is arbitrary. False True False True 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 Data type Null status Data constraints Default value Data type Null status ANSWER DOWNLOAD EXAMIANS APP
Data Models into Database Designs A foreign key is: used to define data types. used to define null status. a column containing the primary key of another table. All of these used to define data types. used to define null status. a column containing the primary key of another table. All of these ANSWER DOWNLOAD EXAMIANS APP
Data Models into Database Designs Which is not true about surrogate keys? They are fixed. They are short. They are numeric. They have meaning to the user. They are fixed. They are short. They are numeric. They have meaning to the user. 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
EXAMIANS