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 Any table that meets the definition of a relation is said to be in first normal form. True False True False ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System Keys made up of two or more attributes are called composite keys. False True False True 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 the pin code the last name None of these All of these a compound key consisting of the first name and the last name the pin code the last name None of these All of these ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System Which of the following contains a complete record of all activity that affected the contents of a database during a certain period of time? report writer transaction log None of these query language data manipulation language report writer transaction log None of these query language data manipulation language ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System Which of the following is NOT a basic element of all versions of the E-R model? Attributes Primary keys Entities Relationships Attributes Primary keys Entities Relationships ANSWER DOWNLOAD EXAMIANS APP
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