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Most databases store the distribution of values for each attribute as a __________

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Most databases store the distribution of values for each attribute as a __________

(a) Histogram

(b) Pie chart

(c) Line graph

(d) None of the mentioned

The question was posed to me in class test.

My query is from Estimating Statistics of Expression Results in division Query Processing and Optimization of RDBMS

1 Answer

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Best answer
Correct choice is (a) Histogram

The explanation is: Most of the databases store the distribution of values for each attribute as a histogram.in which the values for the attributes are divided into various ranges.

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