Parayı/Rakamı yazıya çeviren SQL Function

-- Name: Parayı/Rakamı yazıya çeviren SQL function
-- Description:
--sayısal değeri yazıya çevirir
--virgülden sonra 2 haneyi alır
--Eğer @isMoney = true ise dönüş değerine TL ve kuruş eklenir
create function dbo.fnc_ParayiYaziyaCevir (@num AS numeric(18,2), @isMoney as bit)
returns varchar(255)
AS
BEGIN

--declare @num numeric(18,2)
--declare @isMoney bit
--set @num = 1001111.99
--set @isMoney = 1
DECLARE @Split tinyint
DECLARE @iSplit tinyint
DECLARE @sNum varchar(20)
DECLARE @NumSet varchar(3)
DECLARE @Char char(1)
DECLARE @NumText varchar(255)
DECLARE @SetText varchar(100)
DECLARE @HunText varchar(100)
DECLARE @CharText varchar(50)
DECLARE @Match bit
DECLARE @Point tinyint
DECLARE @Cents varchar(2)
DECLARE @CentText varchar(100)
DECLARE @NumStrings TABLE (Num int, NumStr varchar(20))
INSERT INTO @NumStrings
SELECT 1, 'Bir'
UNION SELECT 2, 'İki'
UNION SELECT 3, 'Üç'
UNION SELECT 4, 'Dört'
UNION SELECT 5, 'Beş'
UNION SELECT 6, 'Altı'
UNION SELECT 7, 'Yedi'
UNION SELECT 8, 'Sekiz'
UNION SELECT 9, 'Dokuz'
UNION SELECT 10, 'On'
UNION SELECT 11, 'Onbir'
UNION SELECT 12, 'Oniki'
UNION SELECT 13, 'Onüç'
UNION SELECT 14, 'Ondört'
UNION SELECT 15, 'Onbeş'
UNION SELECT 16, 'Onaltı'
UNION SELECT 17, 'Onyedi'
UNION SELECT 18, 'Onsekiz'
UNION SELECT 19, 'Ondokuz'
UNION SELECT 20, 'Yirmi'
UNION SELECT 30, 'Otuz'
UNION SELECT 40, 'Kırk'
UNION SELECT 50, 'Elli'
UNION SELECT 60, 'Altmış'
UNION SELECT 70, 'Yetmiş'
UNION SELECT 80, 'Seksen'
UNION SELECT 90, 'Doksan'
SET @sNum = cast(@num as varchar(20))
--convert any cent text first, then the
-- whole number
SET @Point = charindex('.', @sNum)
IF @Point > 0
BEGIN
SET @Cents = substring(@sNum, @Point + 1, 2)
SET @sNum = left(@sNum, @Point-1)
--if isMoney THEN combine the two digits (eg 11 = eleven)
IF @isMoney = 1
BEGIN --look FOR matches WITH the RIGHT İki characters
SET @Match = (select count(*) FROM @NumStrings WHERE Num = @Cents)
IF @Match <> 0
BEGIN
SET @CentText = (select NumStr FROM @NumStrings WHERE Num = @Cents)
END
ELSE
BEGIN
SET @CentText = isnull((select NumStr FROM @NumStrings WHERE Num = left(@Cents, 1) + '0'),'') + (select NumStr from @NumStrings where Num = right(@Cents, 1))
END
END
ELSE --if NOT isMBiry THEN treat each digit seperately (eg 11 = Bir Bir)
BEGIN
SET @CentText = isnull((select NumStr FROM @NumStrings WHERE Num = left(@Cents, 1)),'') + isnull((select NumStr from @NumStrings where Num = right(@Cents, 1)),'')
END
END
IF @CentText IS NULL
SET @CentText = ''
--break the number into blocks of 3 characters
SET @Split = ((len(@sNum)-1) / 3) + 1
SET @iSplit = 0
SET @NumText = ''
WHILE @iSplit < @Split
BEGIN
SET @CharText = ''
SET @HunText = ''
SET @SetText = ''
SET @NumSet = right(left(@sNum, len(@sNum) - @iSplit * 3), 3)
IF len(@Numset) = 3 --Calculate ANY hundreds
BEGIN
SET @Char = left(@NumSet, 1)
if @Char='1'
SET @HunText = 'Yüz'
ELSE
SET @HunText = isnull((select NumStr FROM @NumStrings WHERE Num = @Char) + 'Yüz', '')
SET @SetText = @HunText
END
--look FOR matches WITH the RIGHT two characters
SET @Match = (select count(*) FROM @NumStrings WHERE Num = right(@NumSet, 2))
IF @Match <> 0
BEGIN
SET @CharText = (select NumStr FROM @NumStrings WHERE Num = right(@NumSet, 2))
END
ELSE
BEGIN
SET @CharText = isnull((select NumStr FROM @NumStrings WHERE Num = left(right(@NumSet, 2), 1) + '0'),'') + (select NumStr from @NumStrings where Num = right(@NumSet, 1))
END
--make sure there IS something in @CharText AND @SetText (ie IF @NumSet = x00, x000)
IF @CharText IS NULL SET @CharText = ''
IF @SetText IS NULL set @SetText = ''
--seperate ANY hundreds FROM Ons/units WITH an 'and'
IF @HunText <> '' AND @CharText <> ''
SET @SetText = @SetText + ''
--if there are no hundreds, it's the smallest SET AND there are other sets, ADD an 'and' before
IF @HunText = '' AND @CharText <> '' and @iSplit = 0 and @Split > 1 and @CentText = ''
SET @SetText = '' + @SetText
SET @SetText = @SetText + @CharText
--append the SET suffix text. ADD a ',' AS long as there IS something in the lowest set
if @iSplit = 1 AND @SetText='Bir' BEGIN
SET @SetText=''
SET @SetText = @SetText + CASE @iSplit
WHEN 0 THEN ''
WHEN 1 THEN 'Bin'
WHEN 2 THEN 'Milyon'
WHEN 3 THEN 'Milyar'
WHEN 4 THEN 'Trilyon'
WHEN 5 THEN 'Katrilyon'
END + CASE WHEN len(@NumText) > 0 THEN '' ELSE '' end
END
ELSE
BEGIN
IF @SetText <> ''
SET @SetText = @SetText + CASE @iSplit
WHEN 0 THEN ''
WHEN 1 THEN 'Bin'
WHEN 2 THEN 'Milyon'
WHEN 3 THEN 'Milyar'
WHEN 4 THEN 'Trilyon'
WHEN 5 THEN 'Katrilyon'
END + CASE WHEN len(@NumText) > 0 THEN '' ELSE '' end
END
SET @NumText = @SetText + @NumText
SET @iSplit = @iSplit + 1
END
--add any dollars and cent text
IF @isMoney = 1 AND @NumText <> '' and rtrim(ltrim(@NumText)) <> 'Bir'
SET @NumText = @NumText + ' TL'
IF @isMoney = 1 AND rtrim(ltrim(@NumText)) = 'Bir'
SET @NumText = @NumText + ' TL'
IF @isMoney = 1 AND @CentText <> '' and rtrim(ltrim(@CentText)) <> 'Bir'
SET @CentText = @CentText + ' kuruş'
IF @isMoney = 1 AND rtrim(ltrim(@CentText)) = 'Bir'
SET @CentText = @CentText + ' kuruş'
IF @isMoney = 0 AND @CentText <> ''
SET @CentText = ' Point' + @CentText
IF @isMoney = 1 AND @NumText <> '' and @CentText <> ''
SET @CentText = ' ' + @CentText
--combine dollars and cents
SET @NumText = @NumText + @CentText
--add 'Minus' for negative numbers
IF left(@sNum, 1) = '-'
SET @NumText = 'virgül' + @NumText
RETURN @NumText
END