Introduction to Database System The physical location of a record is determined by a mathematical formula that transforms a file key into a record location in an indexed file a tree file a hashed file a sequential file None of these an indexed file a tree file a hashed file a sequential file None of these ANSWER DOWNLOAD EXAMIANS APP
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 _____ Contains fields of data about one entity. File None of these Document Record Fields File None of these Document Record Fields ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System Entity instances are associated by relationship classes. False True False True ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System Applications are programs that interact directly with the database. True False True False ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System Queries to a database can use aggregate functions like SUM and COUNT both (a) and (b) All of these are written in English None of these can use aggregate functions like SUM and COUNT both (a) and (b) All of these are written in English None of these ANSWER DOWNLOAD EXAMIANS APP
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