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