Introduction to Database System Relationship classes are associations between entity classes. False True False True ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System The model for a record management system might be handwritten list a Rolodex card file a business form All of these None of these handwritten list a Rolodex card file a business form All of these None of these ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System In a large DBMS each user can "see" only a small part of the entire database all of the listed here each subschema contains every field in the logical schema each user can access every sub¬schema each user can "see" only a small part of the entire database all of the listed here each subschema contains every field in the logical schema each user can access every sub¬schema ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System A recursive relationship is a relationship between an entity and ________ . a subtype entity an archetype entity itself an instance entity a subtype entity an archetype entity itself an instance entity ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System Which of the following is NOT a basic element of all versions of the E-R model? Attributes Entities Primary keys Relationships Attributes Entities Primary keys Relationships ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System The database administration function includes database access planning computer operations management All of these application programming None of these database access planning computer operations management All of these application programming None of these ANSWER DOWNLOAD EXAMIANS APP