Introduction to Database System An ID-dependent entity is an entity whose identifier is a composite identifier where no portion of the composite identifier is an identifier of another entity. False True False True ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System The only reason for the existence of relations is to store instances of functional dependencies. False True False True ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System What is the language used by most of the DBMSs for helping their users to access data? 4GL SQL High level language Query language 4GL SQL High level language Query language ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System With respect to data input, the most accurate description of batch control is All of these None of these controlling the input of each input clerk comparing to a pre-calculated figure the total of a data item summed across a batch records put into the system dividing documents to be entered into batches All of these None of these controlling the input of each input clerk comparing to a pre-calculated figure the total of a data item summed across a batch records put into the system dividing documents to be entered into batches ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System A _____ database does not use pointers or physical links, but instead finds related records by examining the contents of fields. Relational Hierarchical Object-Oriented Network None of these Relational Hierarchical Object-Oriented Network None of these ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System An attribute that names or identifies entity instances is a(n): identifier. entity. attribute. relationship. identifier. entity. attribute. relationship. ANSWER DOWNLOAD EXAMIANS APP
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