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I tried to search a lot on internet about the dmv,but didn't get much. I'm unable to get,Meaning of some of the columns of this dmv. Which are:

  • pg_level
  • allocation_unit_id
  • row_count
  • numa_node Please share meaning of this ,if anyone could have any idea about this.
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A quick search for the DMV leads you to the MS Docs: sys.dm_os_buffer_descriptors

page_level int Index level of the page. Is nullable.

allocation_unit_id bigint ID of the allocation unit of the page. This value can be used to join sys.allocation_units. Is nullable.

row_count int Number of rows on the page. Is nullable.

numa_node int Nonuniform Memory Access node for the buffer. Is nullable.

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