MSSql 自定义函数实现小写金额转换成大写（最高13位不包括小数点后两位）

---功能：小写金额转换成大写（最高13位不包括小数点后两位）
---参数：n_LowerMoney 小写金额
---v_TransType 种类 -- 1: directly translate, 0: read it in words 
---输出：大写金额
if exists (select * from dbo.sysobjects where id = object_id(N'[dbo].[LowerToUpper]') and xtype in (N'FN', N'IF', N'TF'))
drop function [dbo].[LowerToUpper]
GO

CREATE FUNCTION dbo.LowerToUpper(@n_LowerMoney numeric(15,2),@v_TransType int) 
RETURNS VARCHAR(200) AS 
BEGIN 
Declare @v_LowerStr VARCHAR(200) -- 小写金额 
Declare @v_UpperPart VARCHAR(200) 
Declare @v_UpperStr VARCHAR(200) -- 大写金额
Declare @i_I int

set @v_LowerStr = LTRIM(RTRIM(ROUND(@n_LowerMoney,2))) --四舍五入为指定的精度并删除数据左右空格
set @i_I = 1
set @v_UpperStr = ''

while ( @i_I <= len(@v_LowerStr))
begin
select @v_UpperPart = case substring(@v_LowerStr,len(@v_LowerStr) - @i_I + 1,1)
WHEN '.' THEN '元'
WHEN '0' THEN '零'
WHEN '1' THEN '壹'
WHEN '2' THEN '贰'
WHEN '3' THEN '叁'
WHEN '4' THEN '肆'
WHEN '5' THEN '伍'
WHEN '6' THEN '陆'
WHEN '7' THEN '柒'
WHEN '8' THEN '捌'
WHEN '9' THEN '玖'
END
+ 
case @i_I
WHEN 1 THEN '分'
WHEN 2 THEN '角'
WHEN 3 THEN ''
WHEN 4 THEN ''
WHEN 5 THEN '拾'
WHEN 6 THEN '佰'
WHEN 7 THEN '仟'
WHEN 8 THEN '万'
WHEN 9 THEN '拾'
WHEN 10 THEN '佰'
WHEN 11 THEN '仟'
WHEN 12 THEN '亿'
WHEN 13 THEN '拾'
WHEN 14 THEN '佰'
WHEN 15 THEN '仟'
WHEN 16 THEN '万'
ELSE ''
END
set @v_UpperStr = @v_UpperPart + @v_UpperStr
set @i_I = @i_I + 1
end

if ( 0 = @v_TransType)
begin
set @v_UpperStr = REPLACE(@v_UpperStr,'零拾','零') 
set @v_UpperStr = REPLACE(@v_UpperStr,'零佰','零') 
set @v_UpperStr = REPLACE(@v_UpperStr,'零仟','零') 
set @v_UpperStr = REPLACE(@v_UpperStr,'零零零','零')
set @v_UpperStr = REPLACE(@v_UpperStr,'零零','零')
set @v_UpperStr = REPLACE(@v_UpperStr,'零角零分','整')
set @v_UpperStr = REPLACE(@v_UpperStr,'零分','整')
set @v_UpperStr = REPLACE(@v_UpperStr,'零角','零')
set @v_UpperStr = REPLACE(@v_UpperStr,'零亿零万零元','亿元')
set @v_UpperStr = REPLACE(@v_UpperStr,'亿零万零元','亿元')
set @v_UpperStr = REPLACE(@v_UpperStr,'零亿零万','亿')
set @v_UpperStr = REPLACE(@v_UpperStr,'零万零元','万元')
set @v_UpperStr = REPLACE(@v_UpperStr,'万零元','万元')
set @v_UpperStr = REPLACE(@v_UpperStr,'零亿','亿')
set @v_UpperStr = REPLACE(@v_UpperStr,'零万','万')
set @v_UpperStr = REPLACE(@v_UpperStr,'零元','元')
set @v_UpperStr = REPLACE(@v_UpperStr,'零零','零')
end

-- 对壹元以下的金额的处理 
if ( '元' = substring(@v_UpperStr,1,1))
begin
set @v_UpperStr = substring(@v_UpperStr,2,(len(@v_UpperStr) - 1))
end

if ( '零' = substring(@v_UpperStr,1,1))
begin
set @v_UpperStr = substring(@v_UpperStr,2,(len(@v_UpperStr) - 1))
end

if ( '角' = substring(@v_UpperStr,1,1))
begin
set @v_UpperStr = substring(@v_UpperStr,2,(len(@v_UpperStr) - 1))
end

if ( '分' = substring(@v_UpperStr,1,1))
begin
set @v_UpperStr = substring(@v_UpperStr,2,(len(@v_UpperStr) - 1))
end

if ('整' = substring(@v_UpperStr,1,1))
begin
set @v_UpperStr = '零元整'
end
return @v_UpperStr
END
GO