Introduction to Database System Which of the following is not a logical data-base structure? network tree chain relational network tree chain relational ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System The index consists of a list of keys None of these pointers to the master list All of these both (a) and (b) a list of keys None of these pointers to the master list All of these both (a) and (b) ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System A subtype entity is a special case of another entity called a supertype entity. True False True False ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System The primary key is selected from the: foreign keys. determinants. candidate keys. composite keys. foreign keys. determinants. candidate keys. composite keys. ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System In a relation, the rows are sometimes called "records". True False True False ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System A database is called "self-describing" because it contains a description of itself. False True False True ANSWER DOWNLOAD EXAMIANS APP
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