FORMULA & SQL / CLEANUP

Remove duplicates.
Tested, not guessed.

The Excel and Google Sheets formula and the SQL query, each run on the rows below. Open this with your own data ↗

The example rows

Row	A: Region	B: Rep	C: Amount	D: Order Date	E: Status	F: Customer
2	North	Ana	1,200	2026-03-01	Paid	Jo Smith
3	South	Ben	450	2026-03-15	Open	Raj Patel
4	North	Cy	300	2026-04-02	Paid	Lee Wong
5	East	Ana	980.50	2026-04-20	Paid	Mia Ross
6	North	Ben	75	2026-05-05	Open	Jo Smith
7	West	Dee	1,640	2026-05-18	Paid	Sam Okoro

Excel

=UNIQUE(A2:A7)

The distinct values of the Region column (A2:A7).

This lists each value once. In Excel you can also use Data → Remove Duplicates.

Run on the example rows:

PostgreSQL

SELECT *
FROM (
  SELECT *, ROW_NUMBER() OVER (PARTITION BY region ORDER BY region) AS rn
  FROM sales
) t
WHERE rn = 1

Run on the example rows:

region	rep	amount	order_date	status	customer	rn
East	Ana	980.5	2026-04-20	Paid	Mia Ross	1
North	Ana	1200	2026-03-01	Paid	Jo Smith	1
South	Ben	450	2026-03-15	Open	Raj Patel	1
West	Dee	1640	2026-05-18	Paid	Sam Okoro	1

Other databases

MySQL

SELECT *
FROM (
  SELECT *, ROW_NUMBER() OVER (PARTITION BY region ORDER BY region) AS rn
  FROM sales
) t
WHERE rn = 1

SQL Server

SELECT *
FROM (
  SELECT *, ROW_NUMBER() OVER (PARTITION BY region ORDER BY region) AS rn
  FROM sales
) t
WHERE rn = 1

SQLite

SELECT *
FROM (
  SELECT *, ROW_NUMBER() OVER (PARTITION BY region ORDER BY region) AS rn
  FROM sales
) t
WHERE rn = 1

BigQuery

SELECT *
FROM (
  SELECT *, ROW_NUMBER() OVER (PARTITION BY region ORDER BY region) AS rn
  FROM sales
) t
WHERE rn = 1

Snowflake

SELECT *
FROM (
  SELECT *, ROW_NUMBER() OVER (PARTITION BY region ORDER BY region) AS rn
  FROM sales
) t
WHERE rn = 1

Paste your rows into the free tool and it writes this for your columns, then runs it on your data before you copy it. Open the tool ↗