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Concept
Cross Join
A
cross join
is a
database operation
that returns the
Cartesian product
of
two tables
, combining each row of the first table with
every row
of the second table. It is useful for generating all
possible combinations
of
data sets
but can result in
large datasets
if not used carefully.
Relevant Fields:
Database Structures 70%
Probability and Statistics 20%
Management Activities and Operations 10%
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