Answer / sam

statistics in SQL Server refers specifically to information
that the server collects about the distribution of data in
columns and indexes. This data in turn is used by the query
optimizer to determine the plan of attack for returning
results when you run a query. While in the majority of
cases SQL Server takes care of this statistical
recordkeeping for you automatically, it's useful to have
some understanding of what's going on, and to know when you
might need to intervene.

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