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When every condition appears with equality condition (=) only. c)
Natural join (denoted by R*S)
When two join attributes have the similar name in both relations. (That attribute is
Known as Join attribute), only one of the two attributes is retained in the join relation. The join condition in such a case is = for the join attribute. The condition is not given in the natural join.
er diagtram for icici
Write short note on Data models? Data models: A data model is an abstract model which elaborates how data is represented and accessed. The term data model has two commonly ac
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Update or Modify operation alters the existing values. If these operations alter the value that is the foreign key also, the only check need is the similar as that of the Insert op
Describe the difference between a one-to-many and a many-to-many relationship. Which logical data structures comprise one-to-many and which comprise many-to-many relationship?
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For the relations R and S given below: R S A B C 1 4 7 2 5 8 3 6 9
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