Introduction to Database System A key: identifies a row. must always be composed of two or more columns. identifies a column. can only be one column. identifies a row. must always be composed of two or more columns. identifies a column. can only be one column. ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System A functional dependency is a relationship between or among attributes. True False True False ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System The following are functions of a DBMS except ________ . creating databases processing data creating and processing forms administrating databases creating databases processing data creating and processing forms administrating databases ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System A list consists of last names, first names, addresses, and pin codes if all people in the list have the same last and the same pin code, a useful key would be None of these the last name the pin code a compound key consisting of the first name and the last name All of these None of these the last name the pin code a compound key consisting of the first name and the last name All of these ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System A relation is in Boyce-Codd Normal Form (BCNF) if every determinant is a composite key. True False True False ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System The master list of an indexed file has a number assigned to each record contains only a list of keys and record numbers both (b) and (c) is sorted in ascending order None of these has a number assigned to each record contains only a list of keys and record numbers both (b) and (c) is sorted in ascending order None of these ANSWER DOWNLOAD EXAMIANS APP
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