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Match vs Loop

Posted on 2014-03-15
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I am curious of performance from doing a loop vs a Match function.  If I have a worksheet lets called parts with 10,000 rows and 15 columns.  I have another worksheet in the same workbook lets call regional daily orders.  If every day I review every row in the regional daily orders worksheet (daily row count of 500) for a column called part number and find the corresponding  part number in the worksheet called parts and store the value price and manufacture is this better accomplished with a loop or match function or something else.

I am pretty familiar with loops, but I do not want this to be a case where I am doing a loop for comforts sake...if there is a better method then I would like to learn..
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Question by:upobDaPlaya
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3 Comments
 
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zorvek (Kevin Jones) earned 1000 total points
ID: 39931699
Without more information, a MATCH function in a formula will most definitely be faster than a VBA loop doing the same. Excel's built in functions are optimized compiled code that have access to many more underlying data structures than we do using VBA. They are optimized for performance while VBA is a more generalized and interpreted automation language.

Kevin
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by:nutsch
nutsch earned 1000 total points
ID: 39931704
As Kevin said much better than I can, I think the most straightforward way, and potentially the fastest, is to run a vlookup (or a match) in the worksheet, then paste the values, e.g.

sheets("Orders").range("E2:E6500").formular1c1="=vlookup(rC2,Parts!R1C1:R150000C15,3,0)"
sheets("Orders").range("E2:E6500").value=sheets("Orders").range("E2:E6500").value

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then do the same for the manufacturer.

Thomas
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Author Closing Comment

by:upobDaPlaya
ID: 39933418
I fooled around with a match function today...wish I knew of it earlier :)
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