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sys.stats (Transact-SQL)

Contains a row for each statistics object that exists for the tables, indexes, and indexed views in the database.

Note Note

Every index will have a corresponding statistics row with the same name and ID (index_id = stats_id), but not every statistics row has a corresponding index.

The catalog view, sys.stats_columns, provides statistics information for each column in the database. For more information, see sys.stats_columns (Transact-SQL)

For more information about statistics, see Statistics.

Column name

Data type

Description

object_id

int

ID of the object to which these statistics belong.

name

sysname

Name of the statistics. Is unique within the object.

stats_id

int

ID of the statistics. Is unique within the object.

auto_created

bit

Indicates whether the statistics were automatically created by SQL Server.

0 = Statistics were not automatically created by SQL Server.

1 = Statistics were automatically created by SQL Server.

user_created

bit

Indicates whether the statistics were created by a user.

0 = Statistics were not created by a user.

1 = Statistics were created by a user.

no_recompute

bit

Indicates whether the statistics were created with the NORECOMPUTE option.

0 = Statistics were not created with the NORECOMPUTE option.

1 = Statistics were created with the NORECOMPUTE option.

has_filter

bit

0 = Statistics do not have a filter and are computed on all rows.

1 = Statistics have a filter and are computed only on rows that satisfy the filter definition.

filter_definition

nvarchar(max)

Expression for the subset of rows included in filtered statistics.

NULL = Non-filtered statistics.

is_temporary

bit

Indicate whether the statistics is temporary. Temporary statistics support AlwaysOn Availability Groups secondary databases that are enabled for read-only access.

0 = The statistics is not temporary.

1 = The statistics is temporary.

Does not apply to SQL Azure.

The visibility of the metadata in catalog views is limited to securables that a user either owns or on which the user has been granted some permission. For more information, see Metadata Visibility Configuration.

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