Question

In a B-Tree index, what type of column is most suitable?

a.

Columns with low selectivity

b.

Columns with high selectivity

c.

Columns with concatenated values

d.

Columns with numeric data types

Posted under Data Warehousing and OLAP

Answer: (b).Columns with high selectivity Explanation:B-Tree indexes are most suitable for highly selective columns, where the values at the leaf nodes are unique.

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Q. In a B-Tree index, what type of column is most suitable?

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