Introduction to Database System A database has data and relationships. False True False True ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System 1:1, 1:N and N:M relationships are also known as HAS-A relationships. False True False True ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System The activity of a file is a low percentages of number of records added or deleted from a file if high, reduces processing efficiency for sequential and nonsequential files refers to how closely the files fits into the allocated 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 if high, reduces processing efficiency for sequential and nonsequential files refers to how closely the files fits into the allocated None of these is a measure of the percentage of existing records updated during a run ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System In a database, data is stored in spreadsheets which have rows and columns. 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: A → B → (B,C) → C → A → B → (B,C) → C → ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System Entities can be associated with one another in which of the following? Entities Relationships Attributes Identifiers Entities Relationships Attributes Identifiers ANSWER DOWNLOAD EXAMIANS APP
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