SQL数字转英文函数

-- 数字转英文
-- =============================================
-- Author:     qianjin036a
-- Create date:06/14/2008 02:27:17
-- Description:Arabic numerals to English
-- =============================================
Go
--创建函数
CREATE FUNCTION Digit2English
(
    @arabia decimal(38,17)
)
RETURNS varchar(1000)
AS
BEGIN
    declare @atoe table(a int,e varchar(10))
    insert into @atoe select 0,'zero'   union all select 1,'one'
    union all select 2,'two'            union all select 3,'three'
    union all select 4,'four'           union all select 5,'five'
    union all select 6,'six'            union all select 7,'seven'
    union all select 8,'eight'          union all select 9,'nine'

    declare @integer bigint,@trillion int,@billion int,@million int,@thousand int,@hundred int,@english varchar(1000)

    select @integer=@arabia,@english=''
    select @trillion=@integer % 1000000000000000/1000000000000,@billion=@integer % 1000000000000/1000000000,
        @million=@integer % 1000000000/1000000,@thousand=(@integer % 1000000)/1000,@hundred=(@integer % 1000)
    if @trillion>0
        set @english=@english + dbo.ThreeDigit(@trillion) + 'trillion '
    if @billion>0
        set @english=@english + dbo.ThreeDigit(@billion) + 'billion '
    if @million>0
        set @english=@english + dbo.ThreeDigit(@million) + 'million '
    if @thousand>0
        set @english=@english + dbo.ThreeDigit(@thousand) + 'thousand '
    if @hundred>0
        set @english=@english + dbo.ThreeDigit(@hundred)
    if @english=''
        set @english='zero '
    if @arabia-@integer>0.000000000
        begin
            declare @decimal decimal(18,17)
            select @english=@english+'point ',@decimal=@arabia-@integer
            while @decimal>0.0
                begin
                    select @english=@english+e+' ' from @atoe where cast(@decimal*10 as int)=a
                    set @decimal=@decimal*10-cast(@decimal*10 as int)
                end
        end
    return @english
END
GO

-- =============================================
-- Author:      qianjin036a
-- Create date: 06/14/2008 02:27:17
-- Description: Three Digit Arabic numerals to English
-- =============================================
CREATE FUNCTION ThreeDigit
(
    @integer int
)
RETURNS varchar(100)
WITH EXECUTE AS CALLER
AS
BEGIN
    declare @atoe table(a int,e varchar(10))
    insert into @atoe select 0,'zero'   union all select 1,'one'
    union all select 2,'two'            union all select 3,'three'
    union all select 4,'four'           union all select 5,'five'
    union all select 6,'six'            union all select 7,'seven'
    union all select 8,'eight'          union all select 9,'nine'
    union all select 10,'ten'           union all select 11,'eleven'
    union all select 12,'twelve'        union all select 13,'thirteen'
    union all select 14,'fourteen'      union all select 15,'fifteen'
    union all select 16,'sixteen'       union all select 17,'seventeen'
    union all select 18,'eighteen'      union all select 19,'nineteen'
    union all select 20,'twenty'        union all select 30,'thirty'
    union all select 40,'forty'         union all select 50,'fifty'
    union all select 60,'sixty'         union all select 70,'severty'
    union all select 80,'eighty'        union all select 90,'ninety'

    declare @english varchar(100)
    set @english=''
    if @integer>99
        begin
            select @english=e+' hundred ' from @atoe where @integer/100=a
            set @integer=@integer % 100
            if @integer>0
                set @english=@english+'and '
        end
    if @integer<=20 and @integer>0
        select @english=@english+e+' ' from @atoe where @integer=a
    if @integer>20
        begin
            select @english=@english+e+' ' from @atoe where @integer/10*10=a
            set @integer=@integer % 10
            if @integer>0
                select @english=@english+e+' ' from @atoe where @integer=a
        end
    RETURN @english
END
GO

select dbo.digit2english(123456789987654.321)
union all select dbo.digit2english(120045080045054.8412)
union all select dbo.digit2english(0.0102541)

go
/*
---------------------------------------------------------------------
one hundred and twenty three trillion four hundred and fifty six billion seven hundred and eighty nine million nine hundred and eighty seven thousand six hundred and fifty four point three two one
one hundred and twenty trillion forty five billion eighty million forty five thousand fifty four point eight four one two
zero point zero one zero two five four one
*/