The ............ operator preserves unmatched rows of the relations being joined.

Related MCQs

• State true or false. i) Select operator is not a unary operator. ii) Project operator chooses subset of attributes or columns of a relation.
• The        condition allows a general predicate over the relations being joined.
• The____condition allows a general predicate over the relations being joined.
• In the SQL Cursor, which attribute is TRUE when a cursor has some remaining rows to fetch, and FALSE when a cursor has no rows left to fetch?
• The                operator takes the results of two queries and returns only rows that appear in both result sets.
• What will be the number of columns of CARTESIAN PRODCUT if the participating relations have 5 and 20 rows respectively?
•              is a special type of integrity constraint that relates two relations & maintains consistency across the relations.
• A relational database system needs to maintain data about the relations, such as the schema of the relations. This is called
• ………………… is a special type of integrity constraint that relates two relations & maintains consistency across the relations.
• ………………… is a special type of integrity constraint that relates two relations & maintains consistency across the relations.