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If a column contains 7 values and 6 distinct values, the cardinality is . . . . . . . .

A. 7

B. 6

C. 13

D. 1

Answer: Option B

Solution (By Examveda Team)

This question is about cardinality in MySQL. Cardinality measures how many unique values are present in a column.

Imagine a column with these values:
Apple, Orange, Apple, Banana, Pear, Orange, Grape

We have 7 values in total, but only 6 unique values (Apple, Orange, Banana, Pear, Grape).

So, the cardinality is 6.

Therefore, the correct answer is Option B: 6.

This Question Belongs to MySQL >> MySQL Miscellaneous

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