Introduction to Database System An audit trail All of the listed here can be used to restore lost information is the recorded history of operations performed on a file is used to make back-up copies All of the listed here can be used to restore lost information is the recorded history of operations performed on a file is used to make back-up copies ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System In an enterprise-class database system, business users interact directly with database applications, which directly access the database data. True False True False ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System A relational database management (RDBM) package manages data in more than one file at once. How does it organize these file? As tuple relations tables None of these both (a) and (b) tuple relations tables None of these both (a) and (b) ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System Which command is used to select distinct subject (SUB) from the table (BOOK)? SELECT ALL FROM BOOK All of these SELECT SUB FROM BOOK SELECT DISTINCT SUB FROM BOOK None of these SELECT ALL FROM BOOK All of these SELECT SUB FROM BOOK SELECT DISTINCT SUB FROM BOOK None of these ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System Two files may be joined into a third file if they have a row in common they have a field in common they have no records with the same value in the common field both (b) and (c) None of these they have a row in common they have a field in common they have no records with the same value in the common field both (b) and (c) None of these ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System A _____ means that one record in a particular record type is related to only one record of another record type. Many-to-one relationship None of these One-to-one relationship Many-to-many relationship One-to-many relationship Many-to-one relationship None of these One-to-one relationship Many-to-many relationship One-to-many relationship ANSWER DOWNLOAD EXAMIANS APP
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