通过数据透视表将多个电子表格中的数据共同映射

Question

I am working on simplifying a daily task and I wanted to pick up your brain. I have three different data sources (two from my company and the third from the costumer) with products, dates, category and volume. So far I have converted what I could and left out irrelevant data and combined two of the data into one pivot table (internal data) and the other one in a separate pivot table (external data download). My task is to compare the data and make sure that the internal data is exactly the same as external and if there is a difference investigate and change. I have been comparing the two pivot tables manually with a ruler. The data changes daily and sometimes it is a long task. From reading up on the forum I found ways to compare values with formulas but I have values as well as text and dates and don't know how to incorporate it all. Any thoughts will be really appreciated?

Answer 1

I'm assuming that you have some identifier to tell that this product and that are the same since you're using pivot table.

Something you can use will be vlookup .

The syntax is =vlookup(lookup_value, range, column_index, false)

Insert the number of columns for each item you will compare in a sheet where you have the internal data. If you're comparing dates, category and volume, this makes 6 columns you'll add and you can name them 'ext date , ext cat and ext vol`.

Sheet to make comparison (let's called it Comparison ):

    A        B        C        D        E        F        G        H        I        J
 +--------+--------+--------+--------+--------+--------+--------+--------+--------+--------+
1|Product |Int date|Int Cat |Int Vol |Ext date|Ext Cat |Ext Vol |Dif date|Dif Cat |Dif Vol |
 +--------+--------+--------+--------+--------+--------+--------+--------+--------+--------+
2|Item1   |01/01/12|Cat1    |23      |vlookup1|vlookup2|        |        |        |        |
 |        |        |        |        |        |        |        |        |        |        |

Sheet where the external data is found (let's called it External ):

    A        B        C        D      
 +--------+--------+--------+--------+
1|Product |Ext date|Ext Cat |Ext Vol |
 +--------+--------+--------+--------+
2|Item1   |01/01/12|Cat1    |23      |
 |        |        |        |        |

In the cell E2 of the sheet Comparison , you'll put:

=vlookup(A2, External!A:B, 2, false)

And the result will be 01/01/2012

What the code does is looks for Item1 in column A of External and returns the value in the second column (that's the purpose of the 2 in the formula) in the row it found Item1 . You can specify any range ( A:B in this formula) as long as the first column contains the value you're looking for, and the value you want to return in one of the columns included in the range. For instance, you could have written =vlookup(A2, External!A:D, 2, false) and it would return the same value since the index 2 is within that range, it won't work with =vlookup(A2, External!A:D, 5, false) since D is the 4th column, if that makes sense?

In the cell F2 of the sheet Comparison , you'll put:

=vlookup(A2, External!A:C, 3, false)

And in cell G2

=vlookup(A2, External!A:D, 4, false)

false in the formula means exact match. You can also use 0 instead; it's the same thing.

Then you can put =B2=E2 in the cell H2 to get the comparison between the dates, or any other formula you are already using which might be more suitable.

I hope it helps! :)