Introduction to Database System Which of the following contains a complete record of all activity that affected the contents of a database during a certain period of time? report writer None of these query language data manipulation language transaction log report writer None of these query language data manipulation language transaction log ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System The primary key is selected from the: composite keys. foreign keys. determinants. candidate keys. composite keys. foreign keys. determinants. candidate keys. 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 In a relation, the order of the columns does not matter. True False True False ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System In a relation, the rows are sometimes called "fields". True False True False ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System In a large DBMS each subschema contains every field in the logical schema each user can "see" only a small part of the entire database all of the listed here each user can access every sub¬schema each subschema contains every field in the logical schema each user can "see" only a small part of the entire database all of the listed here each user can access every sub¬schema ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS