Introduction to Database System A functional dependency is a relationship between or among attributes. False True False True ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System Updating a database means reorganizing the database revising the file structure modifying or adding record occurrences all of the listed here reorganizing the database revising the file structure modifying or adding record occurrences all of the listed here ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System Two files may be joined into a third file if they have no records with the same value in the common field None of these they have a field in common they have a row in common both (b) and (c) they have no records with the same value in the common field None of these they have a field in common they have a row in common both (b) and (c) ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System An audit trail can be used to restore lost information All of the listed here is used to make back-up copies is the recorded history of operations performed on a file can be used to restore lost information All of the listed here is used to make back-up copies is the recorded history of operations performed on a file ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System In SQL, which command(s) is(are) used to redefine an index's future storage allocation MODIFY INDEX ALTER INDEX DO INDEX REDEFINE INDEX None of these MODIFY INDEX ALTER INDEX DO INDEX REDEFINE INDEX None of these ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System Which command(s) is(are) used to enable/disable/drop an integrity constraint in SQL? MODIFY TABLE All of the listed here DEFINE TABLE ALTER TABLE MODIFY TABLE All of the listed here DEFINE TABLE ALTER TABLE ANSWER DOWNLOAD EXAMIANS APP