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Difference between sub query and nested query ?
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Answer Posted / s.maheshbabu
quarry inside a quarry is called sub quarry.when sub quarry
is also called nested quarry.
co-related sub quarry is one as inner quarry is evaluated.is
anther result of inner are evaluated.
nested quarry is multiple time of one outer quarry.
ex;-quarry used in()caused co-related quarry.
quarry used with=operator is nested quarry.
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