Introduction to Database System Prior to 1970, all data was stored in separate files, which were mostly stored on reels of magnetic tape. True False True False ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System If attribute A determines both attributes B and C, then it is also true that: (B,C) → A → C → B → (B,C) → A → C → B → ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System In the relational model, relationships between relations or tables are created by using: foreign keys. determinants. composite keys. candidate keys. foreign keys. determinants. composite keys. candidate keys. ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System A _____ Contains fields of data about one entity. File Record None of these Document Fields File Record None of these Document Fields ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System With respect to data input, the most accurate description of batch control is dividing documents to be entered into batches None of these controlling the input of each input clerk comparing to a pre-calculated figure the total of a data item summed across a batch records put into the system All of these dividing documents to be entered into batches None of these controlling the input of each input clerk comparing to a pre-calculated figure the total of a data item summed across a batch records put into the system All of these ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System Which of the following is not a relational database? FoxPro Reflex 4th Dimension dBASE IV FoxPro Reflex 4th Dimension dBASE IV ANSWER DOWNLOAD EXAMIANS APP
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