How is data stored in SQL Server Cube?

  • Jitendra Luniya

    SSC Eights!

    Points: 981

    Hi,

    I think SQL Server cube data is stored physically on disk. This is because the cube will hold pre-aggregated data across the specified diemnsions. If the data is physically stored then it will be retrieved fast for reporting purpose.

    Can someone add more views?

    Regards - JL

  • Rajesh.KB

    SSC-Addicted

    Points: 403

    Olap data is stored in Olap DB

  • PaulB-TheOneAndOnly

    SSC Guru

    Points: 66773

    Jitendra Luniya (9/5/2008)


    I think SQL Server cube data is stored physically on disk. This is because the cube will hold pre-aggregated data across the specified diemnsions. If the data is physically stored then it will be retrieved fast for reporting purpose.

    Answer is... Yes, may be 😀

    Let me quote Microsoft documentation about it, nothing is more clear than that... "Storage may include only the cube metadata, or may include all of the source data from the fact table as well as the aggregations defined by dimensions related to the measure group. The amount of data stored depends upon the storage mode selected and the number of aggregations."

    Hope this helps.

    _____________________________________
    Pablo (Paul) Berzukov

    Author of Understanding Database Administration available at Amazon and other bookstores.

    Disclaimer: Advice is provided to the best of my knowledge but no implicit or explicit warranties are provided. Since the advisor explicitly encourages testing any and all suggestions on a test non-production environment advisor should not held liable or responsible for any actions taken based on the given advice.
  • Koen Verbeeck

    SSC Guru

    Points: 258965

    PaulB-TheOneAndOnly (4/16/2010)


    Jitendra Luniya (9/5/2008)


    I think SQL Server cube data is stored physically on disk. This is because the cube will hold pre-aggregated data across the specified diemnsions. If the data is physically stored then it will be retrieved fast for reporting purpose.

    Answer is... Yes, may be 😀

    Let me quote Microsoft documentation about it, nothing is more clear than that... "Storage may include only the cube metadata, or may include all of the source data from the fact table as well as the aggregations defined by dimensions related to the measure group. The amount of data stored depends upon the storage mode selected and the number of aggregations."

    Hope this helps.

    More information about the storage modes:

    http://www.sql-server-performance.com/articles/biz/ssas_storage_modes_p1.aspx

    Need an answer? No, you need a question
    My blog at https://sqlkover.com.
    MCSE Business Intelligence - Microsoft Data Platform MVP

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