金额阿拉伯数字转换为中文的自定义函数

CREATE FUNCTION ChangeBigSmall
(@ChangeMoney money) 
RETURNS VarChar(100) AS 

BEGIN
    Declare    @String1    char(20)
    Declare    @String2    char(30)
    Declare    @String4    Varchar(100)
    Declare @String3     Varchar(100)    --从原A值中取出的值
    Declare @i         int        --循环变量
    Declare @J         Int        --A的值乘以100的字符串长度
    Declare @Ch1         Varchar(100)    --数字的汉语读法
    Declare @Ch2         Varchar(100)    --数字位的汉字读法
    Declare @Zero         Int        --用来计算连续有几个零
    Declare    @ReturnValue    VarChar(100)

    Select  @ReturnValue = ""
    Select     @String1 = "零壹贰叁肆伍陆柒捌玖"
    Select    @String2 = "万仟佰拾亿仟佰拾万仟佰拾元角分"

    Select @String4 = Cast(@ChangeMoney*100 as int)   

    select @J=len(cast((@ChangeMoney*100) as int))

    Select @String2=Right(@String2,@J)

    Select    @i = 1

    while    @i<= @j Begin

        Select @String3 = Substring(@String4,@i,1)

        if @String3<>"0" Begin

            Select     @Ch1 = Substring(@String1, Cast(@String3 as Int) + 1, 1)
            Select    @Ch2 = Substring(@String2, @i, 1)
            Select    @Zero = 0                    --表示本位不为零
        end
        else Begin
            If (@Zero = 0) Or (@i = @J - 9) Or (@i = @J - 5) Or (@i = @J - 1)
                        Select @Ch1 = "零"
                    Else
                        Select @Ch1 = ""

                    Select @Zero = @Zero + 1             --表示本位为0
                       
            --如果转换的数值需要扩大，那么需改动以下表达式 I 的值。
            Select @Ch2 = ""

                If @i = @J - 10  Begin
                        Select @Ch2 = "亿"
                        Select @Zero = 0
            end
                   
            If @i = @J - 6 Begin
                        Select @Ch2 = "万"
                        Select @Zero = 0
            end
                   
            if @i = @J - 2 Begin
                        Select @Ch2 = "元"
                        Select @Zero = 0
            end
                   
            If @i = @J
                        Select @Ch2 = "整"
                       
        end   

        Select @ReturnValue = @ReturnValue + @Ch1 + @Ch2

        select @i = @i+1
    end

    --最后将多余的零去掉
    If CharIndex("仟仟",@ReturnValue) <> 0
            Select @ReturnValue = Replace(@ReturnValue, "仟仟", "仟")

    If CharIndex("佰佰",@ReturnValue) <> 0
            Select @ReturnValue = Replace(@ReturnValue, "佰佰", "佰")

        If CharIndex("零元",@ReturnValue) <> 0
            Select @ReturnValue = Replace(@ReturnValue, "零元", "元")
   
        If CharIndex("零万",@ReturnValue) <> 0
            Select @ReturnValue = Replace(@ReturnValue, "零万", "万")
  
        If CharIndex("零亿",@ReturnValue) <> 0
            Select @ReturnValue = Replace(@ReturnValue, "零亿", "亿")
   
        If CharIndex("零整",@ReturnValue) <> 0
            Select @ReturnValue = Replace(@ReturnValue, "零整", "整")
   
    If CharIndex("零佰",@ReturnValue) <> 0
            Select @ReturnValue = Replace(@ReturnValue, "零佰", "零")

    If CharIndex("零仟",@ReturnValue) <> 0
            Select @ReturnValue = Replace(@ReturnValue, "零仟", "零")

    If CharIndex("元元",@ReturnValue) <> 0
            Select @ReturnValue = Replace(@ReturnValue, "元元", "元")

    return @ReturnValue