Which of the following is the comparison operator in tuple relational calculus

Related MCQs

• Which calculus is based on specifying a number of tuple variables:
• A                    integrity constraint requires that the values appearing in specified attributes of any tuple in the referencing relation also appear in specified attributes of at least one tuple in the referenced relation.
• A _________ integrity constraint requires that the values appearing in specified attributes of any tuple in the referencing relation also appear in specified attributes of at least one tuple in the referenced relation.
• A _________ integrity constraint requires that the values appearing in specified attributes of any tuple in the referencing relation also appear in specified attributes of at least one tuple in the referenced relation.
• State true or false. i) Select operator is not a unary operator. ii) Project operator chooses subset of attributes or columns of a relation.
• Relational calculus is a
• The most commonly used operation in relational algebra for projecting a set of tuple from a relation is
• In a relational schema, each tuple is divided into fields called
• Which of the following is not a relational algebraic operation that is developed specifically for the relational databases?
• Which of the following is not a binary operator in relational algebra?