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sys.dm_os_memory_cache_hash_tables (Transact-SQL)

Returns a row for each active cache in the instance of SQL Server.

Column name

Data type

Description

cache_address

varbinary(8)

Address (primary key) of the cache entry. Is not nullable.

name

nvarchar(256)

Name of the cache. Is not nullable.

type

nvarchar(60)

Type of cache. Is not nullable.

table_level

int

Hash table number. A particular cache may have multiple hash tables that correspond to different hash functions. Is not nullable.

buckets_count

int

Number of buckets in the hash table. Is not nullable.

buckets_in_use_count

int

Number of buckets that are currently being used. Is not nullable.

buckets_min_length

int

Minimum number of cache entries in a bucket. Is not nullable.

buckets_max_length

int

Maximum number of cache entries in a bucket. Is not nullable.

buckets_avg_length

int

Average number of cache entries in each bucket. Is not nullable.

buckets_max_length_ever

int

Maximum number of cached entries in a hash bucket for this hash table since the server was started. Is not nullable.

hits_count

bigint

Number of cache hits. Is not nullable.

misses_count

bigint

Number of cache misses. Is not nullable.

buckets_avg_scan_hit_length

int

Average number of examined entries in a bucket before the searched for an item was found. Is not nullable.

buckets_avg_scan_miss_length

int

Average number of examined entries in a bucket before the search ended unsuccessfully. Is not nullable.

Permissions

Requires VIEW SERVER STATE permission on the server.