Introduction to Database System An attribute describes the entity's characteristics. False True False True ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System A ____ Contains the smallest unit of meaningful data, so you might call it the basic building block for a data file. Fields Database File structure Records Fields Database File structure Records ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System Which of the following is a serious problem of file management systems? lack of data independence data redundancy program dependence All of these difficult to update lack of data independence data redundancy program dependence All of these difficult to update ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System In a large DBMS each user can access every sub¬schema all of the listed here each subschema contains every field in the logical schema each user can "see" only a small part of the entire database each user can access every sub¬schema all of the listed here each subschema contains every field in the logical schema each user can "see" only a small part of the entire database ANSWER DOWNLOAD EXAMIANS APP
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 a sequential file None of these a hashed file an indexed file a tree file a sequential file None of these a hashed file an indexed file a tree file 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
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