Introduction to Database System A relation is in this form if it is in BCNF and has no multivalued dependencies: third normal form. second normal form. domain/key normal form. fourth normal form. third normal form. second normal form. domain/key normal form. fourth normal form. ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System An audit trail 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 can be used to restore lost information 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 Which type of entity represents a logical generalization whose actual occurrence is represented by a second, associated entity? Instance entity Subtype entity Archetype entity Supertype entity Instance entity Subtype entity Archetype entity Supertype entity ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System Which language has recently become the de-facto standard for interfacing application programs with relational database system? 4GL Oracle dBASE None of these SQL 4GL Oracle dBASE None of these SQL ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System Which of the following indicates the minimum number of entities that must be involved in a relationship? Maximum cardinality Greater Entity Count (GEC) ERD Minimum cardinality Maximum cardinality Greater Entity Count (GEC) ERD Minimum cardinality ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System A key is a group of one or more attributes that uniquely identifies a row. True False True False ANSWER DOWNLOAD EXAMIANS APP
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