ALTER FUNCTION FNStrCompare
(@Val1  VARCHAR(50),---比較字串1
 @Val2  VARCHAR(50),---比較字串2
 @Break VARCHAR(10) ---分隔符
)
RETURNS INT
AS
BEGIN
DECLARE @Num1 INT
DECLARE @Num2 INT
DECLARE @Val1Num INT
DECLARE @Val2Num INT
DECLARE @a INT
IF CHARINDEX(@Break,@Val1)>0 AND CHARINDEX(@Break,@Val2)>
 
0
    BEGIN
        WHILE LEN(@Val1)>0 AND LEN(@Val2)>0
        BEGIN
            IF CHARINDEX(@Break,@Val1)>0 AND CHARINDEX(@Break,@Val2)>0
            BEGIN
                    SET @Num1=CHARINDEX(@Break,@Val1)-1
                    SET @Val1Num=LEFT(@Val1,@Num1)
                    
 
SET @Val1=SUBSTRING(@Val1,@Num1+2,LEN(@Val1))

                    SET @Num2=CHARINDEX(@Break,@Val2)-1
                    SET @Val2Num=LEFT(@Val2,@Num2)
                    SET @Val2=SUBSTRING(@Val2,@Num1+2,LEN(@Val2))

            END
            ELSE
            BEGIN
                    SET
 
 @Val1Num=CONVERT(INT,@Val1)
                    SET @Val2Num=CONVERT(INT,@Val2)

                    IF @Val1Num=@Val2Num
                    BEGIN
                        SET @a=0
                        BREAK
                    END

            END

            IF @Val1Num>@Val2Num
            BEGIN
                 SET @a=1
                 BREAK
            END
            IF @Val1Num<@Val2Num
            BEGIN
                 SET @a=-1
                 BREAK
            END

        END
    END
ELSE
    BEGIN
        SET @Val1Num=CONVERT(INT,@Val1)
        SET @Val2Num=CONVERT(INT,@Val2)
        IF @Val1Num>@Val2Num
        BEGIN
                SET @a=1
        END
        IF @Val1Num<@Val2Num
        BEGIN
                SET @a=-1
        END
        IF @Val1Num=@Val2Num
        BEGIN
                SET @a=0
        END

    END

RETURN @a

END