refers to the number of different values a column could possibly have.
A)Database statistics
B)Data sparsity
C)A bitmap index
D)Clustering

Question

Quizplus · Accepted Answer

Data sparsity refers to the situation in which many columns contain only a few distinct values. This can occur naturally in certain types of data, such as text data or categorical data. It can also occur as the result of data cleaning, in which redundant or irrelevant columns are removed from a data set. Sparsity can affect the performance of certain types of analysis, such as clustering or classification, because it can make it difficult to identify meaningful patterns or relationships in the data.

Refers to the Number of Different Values a Column Could