Introduction to Database System An on-line commercial site such as Amazon.com is an example of a(n) ________ . e-commerce database application data mining database application single-user database application multiuser database application e-commerce database application data mining database application single-user database application multiuser database application ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System Queries to a database can use aggregate functions like SUM and COUNT All of these None of these are written in English both (a) and (b) can use aggregate functions like SUM and COUNT All of these None of these are written in English both (a) and (b) ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System The PROJECT command will create new table that has more rows than the original table none of the listed here more fields than the original table both of the listed here more rows than the original table none of the listed here more fields than the original table both of the listed here ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System An audit trail can be used to restore lost information is the recorded history of operations performed on a file All of the listed here is used to make back-up copies can be used to restore lost information is the recorded history of operations performed on a file All of the listed here is used to make back-up copies ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System The relational database model was created by E.F. Codd. True False True False ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System The different classes of relations created by the technique for preventing modification anomalies are called: normal forms. functional dependencies. referential integrity constraints. None of these normal forms. functional dependencies. referential integrity constraints. None of these ANSWER DOWNLOAD EXAMIANS APP
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