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Explain the Natural join
Natural join is a binary operator which is written as (R* S) in which R and S are relations. The effect of the natural join is the set of all combinations of tuples in R and S which are equal on their general attribute names. In this just only one column along attributes comprising similar name is retained.
Java program for horrizontal fragmentation in distributed database
State the Steps of Object Design Object design is a very iterative process in which various classes, relationships among objects are added when you move from one level to
i am not clear with the climetic condition of the north indian plain. can u plz explain it for me
East Coast Aquarium Relational Database
What is completeness constraint on generalization? Define the variation between total and partial design constraint. Give an example each. Ans: Completeness Constraints
Describe briefly models which define the operations on classes. The three models which are used to define operations on classes are as: Object Model = data dictionary + Obje
#question.ERD of any car
Why were functional methods fashionable in early days? These are inspired directly by computer architecture and thus popular among computer scientist in early days. The divisio
Explain the concept of deadlock Yes. It can direct to deadlock. Suppose that a batch of frames arrived correctly and were accepted. Then receiver will advance its window. Now s
What is a primary index? A primary index is an index whose search key also explains the sequential order of the file.
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