Introduction to Database System In the relational model, relationships between relations or tables are created by using: foreign keys. determinants. candidate keys. composite keys. foreign keys. determinants. candidate keys. composite keys. ANSWER DOWNLOAD EXAMIANS APP
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 → (B,C) → A → (B,C). A → A → (B,C) → A → (B,C). A → ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System Which of the following is not true of the traditional approach to information processing? All of these It is file-oriented Programs are dependent on the files There is common sharing of data among the various applications It is inflexible All of these It is file-oriented Programs are dependent on the files There is common sharing of data among the various applications It is inflexible ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System It is more accurate to define a _____ as a variety of different record types that are treated as a single unit Record Database Flat File Table None of these Record Database Flat File Table None of these ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System In SQL, which command is used to select data in rows and column from one or more tables? CHOOSE BROWSE None of these SELECT LIST CHOOSE BROWSE None of these SELECT LIST ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System A key: identifies a row. must always be composed of two or more columns. can only be one column. identifies a column. identifies a row. must always be composed of two or more columns. can only be one column. identifies a column. ANSWER DOWNLOAD EXAMIANS APP
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