# why do we use vlookup in excel

We recommend that you always set range_lookup argument explicitly, even though VLOOKUP doesn't require it. That way, you always have a visual reminder of the match mode you expect. Video: 9. For approximate matches, data must be sorted

If you are using approximate-mode matching, your data must be sorted in ascending order by lookup value. Otherwise, you may get an. Also be aware that sometimes text data may look sorted, even though it's not. Felienne Hermans, from a cool analysis she did on actual spreadsheets! 10. VLOOKUP can merge data in different tables A common use case for VLOOKUP is to join data from two or more tables. For example, perhaps you have order data in one table, and customer data in another and you want to bring some customer data into the order table for analysis: Because the customer id exists in both tables, you can use this value to pull in the data you want with VLOOKUP. Just configure VLOOKUP to use the id value in table one, and the data in table 2, with the required column index.

In the example below, we are using two VLOOKUP formulas. One to pull in the customer name, and the other to pull in the customer state. 11. VLOOKUP can classify or categorize data If you ever need to apply arbitrary categories to data records, you can easily do so with VLOOKUP, by using a table that acts as the "key" to assign categories. A classic example is grades, where you need to assign a grade based on a score: In this case, VLOOKUP is configured for approximate match, so it's important that the table be sorted in ascending order. But you can also use VLOOKUP to assign arbitrary categories. In the example below, we are using VLOOKUP to to calculate a group for each department using a small table (named "key") that defines the grouping. 12. Absolute references make VLOOKUP more portable In situations where you plan to retrieve information from more than one column in a table, or if you need to copy and paste VLOOKUP, you can save time and aggravation by using absolute references for the lookup value and table array.

This lets you copy the formula, and then change only the column index number to use the same lookup to get a value from a different column. For example, because the lookup value and table array are absolute, we can copy the formula across the columns, then come back and change the column index as needed. 13. Named ranges make VLOOKUP easier to read (and more portable) Absolute ranges are pretty ugly looking, so can make your VLOOKUP formulas a lot cleaner and easier to read by replacing absolute references with named ranges, which are automatically absolute. For example, in the employee data example above, you can name the input cell "id" and then name the data in the table "data", you can write your formula as follows: Not only is this formula easier to read, but it's also more portable, since named ranges are automatically absolute. 14. Inserting a column may break existing VLOOKUP formulas If you have existing VLOOKUP formulas in a worksheet, formulas may break if you insert a column in the table.

This is because hard-coded column index values don't change automatically when columns are inserted or deleted. In this example, the lookups for Rank and Sales were broken when a new column was inserted between Year and Rank. Year continues to work because it is on the left of the inserted column: To avoid this problem, you can calculate a column index as described in the next two tips. 15. You can use ROW or COLUMN to calculate a column index If you're the type who is bothered by any amount of editing after copying a formula, you can use either ROW or COLUMN to generate dynamic column indexes. If you're getting data from consecutive columns, this trick lets you set up one VLOOKUP formula, then copy it across with no changes required. For example, with the employee data below, we can use the COLUMN function to generate a dynamic column index. For the first formula in cell C3, COLUMN by itself will return 3 (because column C is third in the worksheet) so we simply need to subtract one, and copy the formula across:P All formulas are identical with no post-editing required. =VLOOKUP(id,data,COLUMN()-1,0) Excel is used for find value in table array.

It is very useful function for matching two data base on common value. Suppose you have thousand of order details in which youP have to find few hundred order in master data weather these are exit in your master order data or not. Vlookup(lookup Value,lookup table array, column index number,0) column Index number -- The column index number indicates which column of the table array contains the data you are after. if you enter a2 into the column index number, VLOOKUP returns a value from the second column of the table_array; if the column index number is4, it returns a value from the fourth column of the table_array. Last argument is used for exact match or approx match. use0 or false for exact match and1 or true for approx match.

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why do we use vlookup in excel