Data Models into Database Designs An ideal primary key is short, numeric and seldom changing. False True False True ANSWER DOWNLOAD EXAMIANS APP
Data Models into Database Designs The DBMS allows surrogate keys to be changed. True False True False 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 Which of the following column properties would be used to specify that cells in a column must be immediately filled with a monetary value of $10,000? Default value Data constraints Null status Data type Default value Data constraints Null status Data type ANSWER DOWNLOAD EXAMIANS APP
Data Models into Database Designs Which of the following data constraints would be used to specify that the value of cells in a column must be one of a specific set of possible values? A range constraint A domain constraint An intrarelation constraint An interrelation constraint A range constraint A domain constraint An intrarelation constraint An interrelation constraint 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): foreign key. composite key. surrogate key. primary key. foreign key. composite key. surrogate key. primary key. ANSWER DOWNLOAD EXAMIANS APP