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The MCQ: In a query tree, the operations of relational algebra are classified as; "Query Trees Notations MCQs" App Download [Free] with answers: internal nodes, external nodes, theta nodes, and entity nodes for online computer science programs. Practice Query Trees Notations Quiz Questions, download Apple Book (Free Chapter) for best online schools for computer science.

Query Trees Notations MCQs PDF Download – Prep Test

MCQ 1: In a query tree, the operations of relational algebra are classified as:

internal nodes
external nodes
theta nodes
entity nodes

MCQ 2: In the notation for query trees, the node which is used to terminate the execution is classified as:

attribute nodes
leaf nodes
stem nodes
root nodes

MCQ 3: The data structure in the form of tree to correspond to relational algebra expression is classified as:

relation tree
attribute tree
entity tree
query tree

MCQ 4: In a query tree, the input relations of query are classified as:

attribute nodes
leaf nodes
stem nodes
root nodes

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