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Relational Algebra DBMS
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Which is a join condition contains an equality operator
Natural
Equijoins
left
Cartesian
For select operation the ________ appear in the subscript and the ___________ argument appears in the paranthesis after the sigma
Predicates, relation
Relation, Operation
Relation, Predicates
Operation, Predicates
The ___________ operation, denoted by -, allows us to find tuples that are in one relation but are not in another
Set-difference
difference
Intersection
union
Which is a unary operation
Primitive operation
Selection operation
Projection operation
Generalized selection
Which of the following is not outer join
Left outer join
Right outer join
Full outer join
All of the mentioned
Which of the following is a fundamental operation in relational algebra
Natural join
none of the mentioned
assignment
Set intersection
Which of the following is used to denote the selection operation in relational algebra
Sigma (Greek)
Pi (Greek)
Omega (Greek)
Lambda (Greek)
In precedence of set operators the expression is evaluated from
Left to right
Right to left
Left to left
From user specification
Relational Algebra is a __________ query language that takes two relation as input and produces another relation as output of the query
Fundamental
Structural
Procedural
Relational
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