People with Balance Higher Than

CREATE OR ALTER PROC usp_GetHoldersWithBalanceHigherThan(@balanceTreshold MONEY)
AS
BEGIN
    SELECT [FirstName][First Name], [LastName][Last Name]
    FROM [AccountHolders][ah]
    LEFT JOIN [Accounts][a] ON [ah].[Id] = [a].[AccountHolderId]
    GROUP BY [ah].[Id], [ah].[FirstName], [ah].[LastName]
    HAVING SUM([a].[Balance]) > @balanceTreshold
    ORDER BY [First Name], [Last Name]
END