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A Left Join in Excel is a function that allows you to combine data from two different tables based on a common key or field. This join type includes all the data from the left table and only matching data from the right table. To perform a Left Join in Excel, follow these steps:
1. Ensure that both tables have a common key or field.
2. Click on the cell where you want to display the combined data.
3. Go to the Data tab and select “From Other Sources” and then “From Microsoft Query”.
4. Select the two tables you want to join and click “Next”.
5. Choose the common key or field and click “Next”.
6. Select the “Left Outer Join” option and click “Next”.
7. Choose the columns you want to include in the combined data and click “Next”.
8. Click “Finish” to complete the Left Join.
An example of a Left Join in Excel would be joining a table of customer information with a table of sales data. The Left Join would include all customers, even if they have not made any purchases, and any corresponding sales data for customers who have made purchases.
Perform a Left Join in Excel (With Example)
A left join allows you to join together two tables in which every row in the left table is kept and only the rows who have a matching value in a particular column of the right table are kept.
The following step-by-step example shows how to use the VLOOKUP function to perform a left join in Excel.
Step 1: Enter the Values for Each Table
First, let’s enter the following values for two tables in Excel:
We will perform a left join in which we keep all rows from the left table and only join in the rows from the right table that have matching values in the Team column.
Step 2: Create a Copy of the First Table
Next, let’s copy and paste the values of the first table into a new cell range:
Step 3: Perform Left Join Using VLOOKUP
Next, we’ll type the following formula into cell C13:
=VLOOKUP(A2, $E$2:$G$9, {2,3}, FALSE)
We’ll then drag and fill this formula down to each remaining cell in column C:
Feel free to add the column headers Assists and Rebounds as well:
The left join is now complete.
If a given team didn’t have a match in the right table, then a #N/A value is shown for the Assists and Rebounds columns.
For example, the Mavs did exist in the right table, so they have corresponding values for Assists and Rebounds.
However, the Warriors did not exist in the right table, so they have #N/A for Assists and Rebounds.
The following tutorials explain how to perform other common tasks in Excel:
Cite this article
stats writer (2024). How do I perform a Left Join in Excel? Can you provide an example?. PSYCHOLOGICAL SCALES. Retrieved from https://scales.arabpsychology.com/stats/how-do-i-perform-a-left-join-in-excel-can-you-provide-an-example/
stats writer. "How do I perform a Left Join in Excel? Can you provide an example?." PSYCHOLOGICAL SCALES, 27 Jun. 2024, https://scales.arabpsychology.com/stats/how-do-i-perform-a-left-join-in-excel-can-you-provide-an-example/.
stats writer. "How do I perform a Left Join in Excel? Can you provide an example?." PSYCHOLOGICAL SCALES, 2024. https://scales.arabpsychology.com/stats/how-do-i-perform-a-left-join-in-excel-can-you-provide-an-example/.
stats writer (2024) 'How do I perform a Left Join in Excel? Can you provide an example?', PSYCHOLOGICAL SCALES. Available at: https://scales.arabpsychology.com/stats/how-do-i-perform-a-left-join-in-excel-can-you-provide-an-example/.
[1] stats writer, "How do I perform a Left Join in Excel? Can you provide an example?," PSYCHOLOGICAL SCALES, vol. X, no. Y, ص Z-Z, June, 2024.
stats writer. How do I perform a Left Join in Excel? Can you provide an example?. PSYCHOLOGICAL SCALES. 2024;vol(issue):pages.