Q. In the notation for query graphs, the double ovals or circles are used to represent

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Q. The operation which allows to process relationships from multiple relations rather than single relation is classified as

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Q. The branch of calculus which is based on mathematical logic is classified as

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Q. In a query tree, the operations of relational algebra are classified as

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Q. The operation which is used to take union of tuples from the relations that are not union compatible is classified as

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Q. If matching tuples are not found, the kind of OUTER JOIN operation which keeps all the tuples of first and second relation is classified as

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Q. The operations which are used to enhance the power of expression of relational algebra includes

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Q. In the relational calculus, the variables are bounded with the help of

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Q. In unary relational operations, the symbols such as equal to, less than and greater than are classified as

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Q. The JOIN operation which uses any of the comparison operators is classified as

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Q. The kind of operation by which one tuple can be created with the help of combining tuples from two relations is classified as

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Q. Consider two tuples X and Y, the operation whose result includes tuples that are only in X but not in Y is classified as

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Q. As compared to Cartesian product, the tuples which appears in the result by applying JOIN are the ones

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Q. Consider two tuples R and S, the maximum size of R and S relations is divided to expected size of join is classified as

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Q. In the notation for query trees, the node which is used to terminate the execution is classified as

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Q. The expression used in relational calculus to specify request of retrieval is classified as

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Q. The compatibility condition which states that the relations for union and intersection operations must consist of same type of tuples is classified as

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Q. If the common attributes of two relations are classified as join attributes then the OUTER UNION must be equal to

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Q. The degree of the PROJECT operation is equal to

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Q. The operations used to combine multiple relations to present information in single table are classified as

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