Introduction to Database System Entities of a given type are grouped into a(n): attribute. ER database. entity class. attribute. ER database. entity class. 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 the last name None of these a compound key consisting of the first name and the last name the pin code All of these the last name None of these a compound key consisting of the first name and the last name the pin code All of these ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System A recursive relationship is a relationship between an entity and ________ . an instance entity itself a subtype entity an archetype entity an instance entity itself a subtype entity an archetype entity ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System The functional dependency R → S means that the value of S can be determined when we are given a value of R. False True False True ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System A key: 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. identifies a row. must always be composed of two or more columns. ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System Which of the following is a type of DBMS software? All of these query language report writer utilities database manipulation language All of these query language report writer utilities database manipulation language ANSWER DOWNLOAD EXAMIANS APP
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