Introduction to Database System An entity class is a collection of entities and is described by the structure of the entities in that class. True False True False ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System A computer file can be best described as an orderly collection of data items a general collection of data items None of these a random collection of data items a single data item an orderly collection of data items a general collection of data items None of these a random collection of data items a single data item ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System Batch processing is appropriate if only a small computer system is available only a few transactions are involved a large computer system is available All of these None of these only a small computer system is available only a few transactions are involved a large computer system is available All of these None of these ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System Which of the following refers to something that can be identified in the user's work environment, something that the users want to track? Identifier Attribute Relationship Entity Identifier Attribute Relationship Entity ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System A relation is in this form if it is in BCNF and has no multivalued dependencies: second normal form. third normal form. fourth normal form. domain/key normal form. second normal form. third normal form. fourth normal form. domain/key normal form. ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System A data dictionary is a special file that contains the names of all fields in all files the widths of all fields in all files All of these the data types of all fields in all files None of these the names of all fields in all files the widths of all fields in all files All of these the data types of all fields in all files None of these ANSWER DOWNLOAD EXAMIANS APP
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