Question

I have this data. I need to get the lowest $ full rows for each person.

Amount Date    Name
$123   Jun 1   Peter
$120   Jun 5   Peter
$123   Jun 5   Paul
$100   Jun 1   Paul
$220   Jun 3   Paul

The result of the SQl Server query should be:

$120   Jun 5   Peter
$100   Jun 1   Paul

Answer 1

SQL Server 2005+ Version

;WITH CTE AS
(
    SELECT
        Amount, [Date], Name,
        ROW_NUMBER() OVER (PARTITION BY Name ORDER BY [Amount]) AS RowNum
    FROM Table
)
SELECT *
FROM CTE
WHERE RowNum = 1

Alternative Version

SELECT t.Amount, t.[Date], t.Name
FROM
(
    SELECT Name, MIN(Amount) AS MinAmount
    FROM Table
    GROUP BY Name
) m
INNER JOIN Table t
    ON t.Name = m.Name
    AND t.Amount = m.Amount