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Thread: Refreshing takes too long: SQL combined multi sheets in 1 sheet.

  1. #1

    Refreshing takes too long: SQL combined multi sheets in 1 sheet.


    Hello friends, hope allis well!




    The below code uses aSQL code to combine multi sheets (workbooks) into one sheet. This is happening on PowerPivot.
    I got the idea from
    https://www.contextures.com/PowerPivot-Identical-Excel-Files.html


    Yes, there are manyrows (5 million) & 17 columns; and refreshing is taking a lotof time.
    What can I do speed up the refreshing the data of the powerpivot?

    btw my computer has good specs:


    Windows 8.1 Pro

    Installed memory (RAM)14GB

    System Type: 64- bit OS,x64-based processor



    Please help, and tell me howcan I speed up the refreshing process.



    Thanks a lot in advance!





    SELECT [HEAD$].*   FROM [HEAD$]
    
    UNION ALL 
    
    SELECT * FROM`F:\DATABASES\AvgClaimCo\17-18.xlsb`.[JAN-APR$]
    
    UNION ALL 
    SELECT * FROM`F:\DATABASES\AvgClaimCo\17-18.xlsb`.[MAY-AUG$]
    
    UNION ALL 
    SELECT * FROM`F:\DATABASES\AvgClaimCo\17-18.xlsb`.[SEP-DEC$]
    
    UNION ALL 
    SELECT * FROM`F:\DATABASES\AvgClaimCo\16.xlsb`.[JAN-MAR$]
    
    UNION ALL 
    SELECT * FROM`F:\DATABASES\AvgClaimCo\16.xlsb`.[APR-SEP$]
    
    UNION ALL 
    SELECT * FROM`F:\DATABASES\AvgClaimCo\16.xlsb`.[OCT-DEC$]
    
    UNION ALL 
    SELECT * FROM`F:\DATABASES\AvgClaimCo\15.xlsb`.[Jan-Mar$]
    
    UNION ALL 
    SELECT * FROM`F:\DATABASES\AvgClaimCo\15.xlsb`.[Apr-Jun$]
    
    UNION ALL 
    SELECT * FROM `F:\DATABASES\AvgClaimCo\15.xlsb`.[Jul-Sep$]
    
    UNION ALL 
    SELECT * FROM`F:\DATABASES\AvgClaimCo\15.xlsb`.[Oct-Dec$]

  2. #2
    VBAX Master Aflatoon's Avatar
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    Have you tried using Power Query instead to retrieve the data to your model?
    Be as you wish to seem

  3. #3
    would that be fast? if so, no I didn't try, dunno how. is there a site that can teach me?

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