Introduction to Database System Which of the following refers to an entity in which the identifier of one entity includes the identifier of another entity? ID-independent entity Weak entity Strong entity ID-dependent entity ID-independent entity Weak entity Strong entity ID-dependent entity ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System Which command is used to select distinct subject (SUB) from the table (BOOK)? SELECT DISTINCT SUB FROM BOOK SELECT SUB FROM BOOK None of these SELECT ALL FROM BOOK All of these SELECT DISTINCT SUB FROM BOOK SELECT SUB FROM BOOK None of these SELECT ALL FROM BOOK All of these ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System The logical data structure with a one-to-many relationship is a network chain relational tree network chain relational tree ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System If a piece of data is stored in two places in the database, then both (a) and (b) None of these storage space is wasted changing the data is one spot will cause data inconsistency it can be more easily accessed both (a) and (b) None of these storage space is wasted changing the data is one spot will cause data inconsistency it can be more easily accessed ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System An audit trail can be used to restore lost information All of the listed here is used to make back-up copies is the recorded history of operations performed on a file can be used to restore lost information All of the listed here is used to make back-up copies is the recorded history of operations performed on a file ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System The way a particular application views the data from the data base that the application uses is a : relational model schema None of these subschema module relational model schema None of these subschema module ANSWER DOWNLOAD EXAMIANS APP
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