Introduction to Database System Given the functional dependency R → (S,T) , then it is also true that R → S. True False True False ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System If a piece of data is stored in two places in the database, then it can be more easily accessed both (a) and (b) storage space is wasted None of these changing the data is one spot will cause data inconsistency it can be more easily accessed both (a) and (b) storage space is wasted None of these changing the data is one spot will cause data inconsistency ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System Two files may be joined into a third file if None of these they have a field in common both (b) and (c) they have a row in common they have no records with the same value in the common field None of these they have a field in common both (b) and (c) they have a row in common they have no records with the same value in the common field ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System The highest level in the hierarchy of data organization is called data bank data file data record database data bank data file data record database ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System An attribute is a(n): column of a table. two dimensional table. row of a table. key of a table. column of a table. two dimensional table. row of a table. key of a table. ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System A data dictionary doesn't provide information about: It is conceptually simple where data is located It will be the dominant data base of the future It allows a many-to-many relationship the size of the disk storage device It is conceptually simple where data is located It will be the dominant data base of the future It allows a many-to-many relationship the size of the disk storage device ANSWER DOWNLOAD EXAMIANS APP
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