Home > Link, Microsoft SQL Server, MSBI, Optimization, Query, Script, SQL Mentalist, SQL PraRup, SQL Query, SQL Server, Technology,, TSQL, Vishal Pawar > BI SQL # 183 : SQL Server DBA Scripts : Pages per object in buffer pool

BI SQL # 183 : SQL Server DBA Scripts : Pages per object in buffer pool

Hi Folks,

In this article we are going to cover Pages per object in buffer pool.

In this post we are going to discuss following points:

  • Problem Statement of SQL Script:
  • Description of SQL Script:
  • SQL Script Output Column
  • SQL Script Code
  • SQL Script Output Screenshot
  • User Level to execute

    Problem Statement of SQL Script:

    Find pages per object in buffer pool.

    Description of SQL Script:

    This Transact-SQL script lists buffer statistics for all Tables in the database.

    SQL Script Output Column

    image

    SQL Script Code

    SELECT SCH.NAME + '.' + OBJ.NAME AS ObjectName
        ,MAX(OBJ.type_desc) AS ObjectType
        ,IDX.NAME AS IndexName
        ,MAX(IDX.type_desc) AS IndexType
        ,OBD.page_type AS PageType
        ,COUNT(OBD.page_id) AS PagesInOsBuffer
        ,SUM(AU.total_pages) AS OfTotalObjectPages
        ,SUM(OBD.row_count) AS RowsInOsBuffer
        ,SUM(PRT.rows) AS OfTotalObjectRows
    FROM sys.dm_os_buffer_descriptors AS OBD
    INNER JOIN sys.allocation_units AS AU ON OBD.allocation_unit_id = 
        AU.allocation_unit_id
    INNER JOIN sys.partitions AS PRT ON (
            AU.container_id = PRT.partition_id
            AND AU.type = 2
            )
        OR (
            AU.container_id = PRT.hobt_id
            AND AU.type IN (
                1
                ,3
                )
            )
    INNER JOIN sys.objects AS OBJ ON PRT.object_id = OBJ.object_id
    INNER JOIN sys.schemas AS SCH ON OBJ.schema_id = SCH.schema_id
    INNER JOIN sys.indexes AS IDX ON PRT.object_id = IDX.object_id
        AND PRT.index_id = IDX.index_id
    WHERE OBD.database_id = DB_ID() -- Only objec 
        AND OBJ.type = 'U' -- Filter on user tables 
    GROUP BY SCH.NAME
        ,OBJ.NAME
        ,IDX.NAME
        ,OBD.page_type
    ORDER BY PagesInOsBuffer DESC
        ,ObjectName ASC

    SQL Script Output Screenshot

    image

    User Level to execute

    300

    Hope you will like to Pages per object in buffer pool.

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