Introduction to Database System Periodically adding, changing and deleting file records is called file Updating renewing restructuring upgrading Updating renewing restructuring upgrading ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System In the relational model, relationships between relations or tables are created by using: foreign keys. determinants. candidate keys. composite keys. foreign keys. determinants. candidate keys. composite keys. ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System An audit trail can be used to restore lost information is used to make back-up copies is the recorded history of operations performed on a file All of the listed here can be used to restore lost information is used to make back-up copies is the recorded history of operations performed on a file All of the listed here ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System A ____ Contains the smallest unit of meaningful data, so you might call it the basic building block for a data file. Fields Records Database File structure Fields Records Database File structure ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System The PROJECT command will create new table that has more rows than the original table more fields than the original table none of the listed here both of the listed here more rows than the original table more fields than the original table none of the listed here both of the listed here 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 both (a) and (b) None of these relations tables tuple both (a) and (b) None of these relations tables tuple ANSWER DOWNLOAD EXAMIANS APP
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