Introduction to Database System Every time attribute A appears, it is matched with the same value of attribute B, but not the same value of attribute C. Therefore, it is true that: A → A → (B,C). A → (B,C) → A → A → (B,C). A → (B,C) → ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System A data dictionary is a special file that contains the widths of all fields in all files the names of all fields in all files All of these the data types of all fields in all files None of these the widths of all fields in all files the names 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
Introduction to Database System What software packages are commonly used for businesses that have to track extensive lists of clients and inventory? Data management packages Custom made programs None of these Single function application packages Special purpose packages Data management packages Custom made programs None of these Single function application packages Special purpose packages ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System Which of the following is not an advantage of the data-base approach? program/data independence increased security ability to associate related data elimination of the data redundancy All of these program/data independence increased security ability to associate related data elimination of the data redundancy All of these ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System Data item characteristics that are important in data management include language width punctuation spelling language width punctuation spelling 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
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