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