I have 2 excel files with over 40k records and its gotten to the point that saving the files and running any kind of formula through the set takes a significant amount of time.
What I did in excel was I created a Concatenate to create some sort of primary key to compare between both sheets.
Value1-Value2-Value3 = P-ID
I then used the P-ID to compare a single attribute between the two sheets.
Specifically I used VLOOKUP on sheet1 to to pull in the values from sheet2 I want. Then created another column in sheet1 that checks between both values. The check was simply =if(sheet1value<>sheet2value, "Check", "Matches - OK")
I then get situations where I get "Check", "Matches - OK", "#N/A" and "#Value!". I then take a separate attribute from sheet1, sheet1route, for the cases where I get "Check", "#N/A" and "#Value!"
I then create another three columns in sheet1 and populate in sheet1route for each instance of "Check", "#N/A", "#Value!". This is the data I want
Can someone explain to me how I may be able to do this process or get to the same end result using ACCESS? And would using ACCESS be quicker than using excel for this number of records. I was told that with the size of records Im working with I should use ACCESS. I have to repeat this process regularly and currently taking 30 minutes between each operation is not good. PLEASE HELP!