Introduction to Database System In SQL, which command(s) is(are) used to redefine an index's future storage allocation REDEFINE INDEX None of these ALTER INDEX DO INDEX MODIFY INDEX REDEFINE INDEX None of these ALTER INDEX DO INDEX MODIFY INDEX ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System An audit trail 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 can be used to restore lost information ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System Which of the following is not a restriction for a table to be a relation? No two rows in a table may be identical. The cells of the table must contain a single value. The columns must be ordered. All of the entries in any column must be of the same kind. No two rows in a table may be identical. The cells of the table must contain a single value. The columns must be ordered. All of the entries in any column must be of the same kind. 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. False True False True ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System Which of the following is not an advantage of the data-base approach? program/data independence elimination of the data redundancy All of these ability to associate related data increased security program/data independence elimination of the data redundancy All of these ability to associate related data increased security ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System Which type of entity represents a logical generalization whose actual occurrence is represented by a second, associated entity? Archetype entity Supertype entity Subtype entity Instance entity Archetype entity Supertype entity Subtype entity Instance entity ANSWER DOWNLOAD EXAMIANS APP
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