Database System Concepts
7th Edition
ISBN: 9781260084504
Author: Abraham Silberschatz, S. Sudarshan, Abraham, Henry Korth, Silberschatz Abraham, Silberschatz Professor
Publisher: McGraw-Hill Education
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Expert Solution & Answer
Chapter 24, Problem 5PE
Explanation of Solution
Conditions for the recursive procedure:
- Every recursive procedure must have a valid terminating base condition.
- In the side function, if again we are calling the same procedure, in such cases we need to use the same procedure.
Recursive procedure:
The following is the recursive procedure for computing spatial join two R-join:
SpJoin(node n1, node n2)
begin
if(the bounding boxes of n1 and n2 do not intersect)
return;
if(both n1 and n2 are leaves)
output all pairs of entries(e1, e2) such that
e1 ϵ n1 and e
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