Introduction to Database System The following are components of a database except ________ . user data indexes reports metadata user data indexes reports metadata ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System In a relation, the rows are sometimes called "fields". False True False True ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System Prior to 1970, all data was stored in separate files, which were mostly stored on reels of magnetic tape. False True False True ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System In a relation, the rows are sometimes called "records". False True False True ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System If a piece of data is stored in two places in the database, then None of these both (a) and (b) changing the data is one spot will cause data inconsistency it can be more easily accessed storage space is wasted None of these both (a) and (b) changing the data is one spot will cause data inconsistency it can be more easily accessed storage space is wasted ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System The activity of a file None of these is a measure of the percentage of existing records updated during a run is a low percentages of number of records added or deleted from a file refers to how closely the files fits into the allocated if high, reduces processing efficiency for sequential and nonsequential files None of these is a measure of the percentage of existing records updated during a run is a low percentages of number of records added or deleted from a file refers to how closely the files fits into the allocated if high, reduces processing efficiency for sequential and nonsequential files ANSWER DOWNLOAD EXAMIANS APP
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