Which of the following JOINS would generate the largest amount of data?

The correct answer is C. CROSS JOIN. A CROSS JOIN produces the Cartesian product of the two tables (every row from the first paired with every row from the second), yielding far more rows than any of the other join types.

Data Processing Technologies

Question

Options

ARIGHT JOIN
BLEFT JOIN
CCROSS JOIN
DINNER JOIN

How the community answered

(28 responses)

A
4% (1)
B
7% (2)
C
89% (25)

Explanation

A CROSS JOIN produces the Cartesian product of the two tables (every row from the first paired with every row from the second), yielding far more rows than any of the other join types.

Topics

#SQL joins#CROSS JOIN#Cartesian product#data volume

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