Introduction to Database System A primary key is a composite key that was selected to be the main identifier for the relation. True False True False 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 a compound key consisting of the first name and the last name All of these the pin code the last name None of these a compound key consisting of the first name and the last name All of these the pin code the last name None of these ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System A recursive relationship is a relationship between an entity and ________ . itself a subtype entity an instance entity an archetype entity itself a subtype entity an instance entity an archetype entity ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System 1:1, 1:N and N:M relationships are also known as HAS-A relationships. True False True False ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System In a relation, the order of the rows matters. False True False True ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System In order to use a record management system All of these You need to understand the model the record management system uses. None of these You need to understand the low-level details of how information in stored Both (a) and (b) All of these You need to understand the model the record management system uses. None of these You need to understand the low-level details of how information in stored Both (a) and (b) ANSWER DOWNLOAD EXAMIANS APP
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