Introduction to Database System The degree of a relationship refers to the number of entity classes in the relationship. False True False True ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System In the relational model, relationships between relations or tables are created by using: composite keys. determinants. foreign keys. candidate keys. composite keys. determinants. foreign keys. candidate keys. 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 A scheme describes data elements record relationships All of these records and files None of these data elements record relationships All of these records and files None of these ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System In SQL, which command(s) is(are) used to enable/disable all triggers on a table? All of the listed here ALTER TRIGGERS MODIFY TRIGGERS IN TABLE ALTER TABLE All of the listed here ALTER TRIGGERS MODIFY TRIGGERS IN TABLE ALTER TABLE ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System An-owner-member set in the CODASYL specifications may have only one member but many member occurrence more than one member but only one occurrence per member All of the listed here only one owner but many owner occurrences only one member but many member occurrence more than one member but only one occurrence per member All of the listed here only one owner but many owner occurrences ANSWER DOWNLOAD EXAMIANS APP