Introduction to Database System A scheme describes records and files record relationships None of these data elements All of these records and files record relationships None of these data elements All of these ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System A _____ means that one record in a particular record type can be related to many records in another record type and vice-versa. Many-to-one relationship One-to-one relationship None of these One-to-many relationship Many-to-many relationship Many-to-one relationship One-to-one relationship None of these One-to-many relationship Many-to-many relationship ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System A maximum cardinality is the maximum number of entity instances that can participate in a relationship instance. True False True False ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System The DBMS that is most difficult to use is ________ . IBM's DB2 Microsoft's Access Oracle Corporation's Oracle Microsoft's SQL Server IBM's DB2 Microsoft's Access Oracle Corporation's Oracle Microsoft's SQL Server ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System When the values in one or more attributes being used as a foreign key must exist in another set of one or more attributes in another table, we have created a(n): insertion anomaly. transitive dependency. normal form. referential integrity constraint. insertion anomaly. transitive dependency. normal form. referential integrity constraint. ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System Which type of entity is related to two or more associated entities that each contain specialized attributes that apply to some but not all of the instances of the entity? Archetype entity Instance entity Supertype entity Subtype entity Archetype entity Instance entity Supertype entity Subtype entity ANSWER DOWNLOAD EXAMIANS APP
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