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  1. #1
    adnancanada is offline Competent Performer
    Windows XP Access 2007
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    How to handle large database more then 2GB in access

    I am working on large database on Access 2013. I pull data for the whole year but data is getting more than 2 GB. when I run queries it behave very odd and freeze my computer.

    Is there way to handle data , I have compressed data but still more than 2 Gb. Please help me out.

    Thanks.

  2. #2
    orange's Avatar
    orange is offline Moderator
    Windows 8 Access 2010 32bit
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    Do you do
    -regular Compact and Repair
    -backups??

  3. #3
    CJ_London is offline VIP
    Windows 8 Access 2010 32bit
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    In addition to Orange's comments:

    is there a lot of duplicate data? if so, normalise

    are you using temp tables? - if so, put temp tables in another back end

    are you over indexing? if so, reduce number of indexes to those required for criteria/relationships/sorting. Also remove indexes where the range of fields is very small (e.g. yes/no fields, day of week) since they will be ineffective

    consider splitting your tables across several backends

    If none of the above works for you, then your only way forward is to upgrade your backend to sql server (express is free) or similar

  4. #4
    NTC is offline VIP
    Windows 7 64bit Access 2013
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    often file size expansion to 2G is caused by a corruption issue; and so in a copy one should do the compact & repair

    as the user interface objects can cause a lot of a file's size, typically more than the data itself - - the advice of Ajax to split the db should be your first step.

    this will put the data itself into a separate back end file. If this file is at or approaching 2G then you have outgrown Access and will need to consider moving the SQL Express to hold the data tables.

    even though technically under the 2G max one will see performance issues attempting to work with data approaching that size which is to some degree going to be due to the horse power of the PC one is using and so one will want to be using hardware with as much RAM as possible - definitely 8G or more.

  5. #5
    adnancanada is offline Competent Performer
    Windows XP Access 2007
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    Quote Originally Posted by orange View Post
    Do you do
    -regular Compact and Repair
    -backups??
    I don compact and repair.

  6. #6
    adnancanada is offline Competent Performer
    Windows XP Access 2007
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    Quote Originally Posted by Ajax View Post
    In addition to Orange's comments:

    is there a lot of duplicate data? if so, normalise

    are you using temp tables? - if so, put temp tables in another back end

    are you over indexing? if so, reduce number of indexes to those required for criteria/relationships/sorting. Also remove indexes where the range of fields is very small (e.g. yes/no fields, day of week) since they will be ineffective

    consider splitting your tables across several backends

    If none of the above works for you, then your only way forward is to upgrade your backend to sql server (express is free) or similar
    Actually I m working on link tables which is actually views. Can I do index on views ?

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