比较2个日期是否相同

SET ANSI_NULLS ON
GO
SET QUOTED_IDENTIFIER ON
GO
-- =============================================
-- Author:      Insus.NET
-- Create date: 2019-05-15
-- Update date: 2019-05-15
-- Description: 比较2个日期是否相同
-- =============================================
CREATE FUNCTION [dbo].[IsSameDay]
(
    @Date DATETIME, 
    @CompareTo DATETIME
)
RETURNS BIT
AS BEGIN
DECLARE @result int = 0;
    IF DATEDIFF(dd,0,@Date) = DATEDIFF(dd,0,@CompareTo)
        SET @result = 1 
 RETURN @result
END