There is a step-by-step illustration of this method that may come in handy as well. The final argument of FALSE means find me an exact match to the value I am looking up, not an approximate one. The third argument says "If there is a match in column A (remember this is our helper column that we made by combining charge number + description) then return the value in the second column from the left" This is the table containing information that you want to look up and retrieve from. The second argument is saying "Look in Sheet1, columns A through D". In this case, we want to find the combined charge number + description because those are the values in our helper column we created. The first argument is the value that you want to find. Now, for an explanation of the magic ( VLOOKUP): Method 3: Compare Two Columns in Excel for Missing Values Using Match Function. Method 2: Compare Two Columns in Excel for Missing Values with If along with VLOOKUP and ISERROR Functions. Method 1: Compare Two Columns in Excel for Missing Values with VLOOKUP and ISERROR Functions. If you want you can hide that column we made in step 1 by right clicking the column header and then Hide. 4 Ways to Compare Two Columns in Excel for Missing Values. On Sheet2, enter the following formula into whichever cell you want to display the Line Number from Sheet1: =VLOOKUP(CONCATENATE(A2,D2),Sheet1!$A:$D,2,FALSE) and fill this formula down.This will combine the values from columns B and C. Now to get the exact match, you need to apply Vlookup formula Vlookup (A2,B2:B8,1,0) If you are aware of Vlookup, you might have guessed that above formula will return NA, if the value matches else it will return the matched value. In this new column A, type the formula =CONCATENATE(B2,C2) (assuming your data starts on the second row, accounting for headers in the first row. Check the steps of Vlookup formula to compare two columns.On Sheet1, right-click the column A header and select Insert (this will add a new column to the left).Then I use a VLOOKUP formula on Sheet2 to retrieve the relevant information from Sheet1. In order to use VLOOKUP this would need to be the left-most column in the table you are looking up into (the table in sheet1). This will be the value you look up to get the information you want from Sheet1. The first thing I would do is make a helper column that combines the Charge number and Description fields into one field on Sheet1. For a few hundred rows this is fine, but if you are using hundreds of thousands of rows then you may see performance issues. The arguments which are stated in this syntax have a specific meaning. The syntax of VLOOKUP function is VLOOKUP ( lookupvalue, tablearray, colindexnumber, rangelookup ). That should work just fine, but it is calculation-intensive because it looks at all values in both criteria columns to find what you're looking for. The VLOOKUP is a built-in function of Excel which performs the vertical lookup by searching a specific value of a column in another column. I'll show an alternative way to the array function.
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