Introduction to Database System A functional dependency is a relationship between or among: attributes. tables. relations. rows. attributes. tables. relations. rows. ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System Table is synonymous with the term: column. field. relation. record. column. field. relation. record. ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System Which of the following is not a restriction for a table to be a relation? The columns must be ordered. The cells of the table must contain a single value. All of the entries in any column must be of the same kind. No two rows in a table may be identical. The columns must be ordered. The cells of the table must contain a single value. All of the entries in any column must be of the same kind. No two rows in a table may be identical. ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System For some relations, changing the data can have undesirable consequences called: referential integrity constraints. normal forms. transitive dependencies. modification anomalies. referential integrity constraints. normal forms. transitive dependencies. modification anomalies. ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System A key: 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. identifies a row. ANSWER DOWNLOAD EXAMIANS APP
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