如何在sql server中写入数字到字的function

如何在SQL Server中编写一个函数来输出一个数字？

input：1
输出：一个

input：129
输出：一百二十九

Answer 1

这可能会帮助你：

将数字转换成单词

要么

searchGoogle

Answer 2

考虑使用辅助数字表。

注意：这个MS SQL

创build一个序列表 – 这可能包括所有您需要的数字或至less999.我已经限制到最less，但它增加了额外的逻辑。

CREATE TABLE [dbo].[Sequence] ( seq INTEGER NOT NULL UNIQUE, word [varchar](25) NOT NULL ) INSERT INTO [Sequence] SELECT 0, '' INSERT INTO [Sequence] SELECT 1, 'One' INSERT INTO [Sequence] SELECT 2, 'Two' INSERT INTO [Sequence] SELECT 3, 'Three' INSERT INTO [Sequence] SELECT 4, 'Four' INSERT INTO [Sequence] SELECT 5, 'Five' INSERT INTO [Sequence] SELECT 6, 'Six' INSERT INTO [Sequence] SELECT 7, 'Seven' INSERT INTO [Sequence] SELECT 8, 'Eight' INSERT INTO [Sequence] SELECT 9, 'Nine' INSERT INTO [Sequence] SELECT 10, 'Ten' INSERT INTO [Sequence] SELECT 11, 'Eleven' INSERT INTO [Sequence] SELECT 12, 'Twelve' INSERT INTO [Sequence] SELECT 13, 'Thirteen' INSERT INTO [Sequence] SELECT 14, 'Fourteen' INSERT INTO [Sequence] SELECT 15, 'Fifteen' INSERT INTO [Sequence] SELECT 16, 'Sixteen' INSERT INTO [Sequence] SELECT 17, 'Seventeen' INSERT INTO [Sequence] SELECT 18, 'Eighteen' INSERT INTO [Sequence] SELECT 19, 'Nineteen' INSERT INTO [Sequence] SELECT 20, 'Twenty' INSERT INTO [Sequence] SELECT 30, 'Thirty' INSERT INTO [Sequence] SELECT 40, 'Forty' INSERT INTO [Sequence] SELECT 50, 'Fifty' INSERT INTO [Sequence] SELECT 60, 'Sixty' INSERT INTO [Sequence] SELECT 70, 'Seventy' INSERT INTO [Sequence] SELECT 80, 'Eighty' INSERT INTO [Sequence] SELECT 90, 'Ninty' 

然后创build用户定义的function。

 CREATE FUNCTION dbo.udf_NumToWords ( @num AS INTEGER ) RETURNS VARCHAR(50) AS BEGIN DECLARE @words AS VARCHAR(50) IF @num = 0 SELECT @words = 'Zero' ELSE IF @num < 20 SELECT @words = word FROM sequence WHERE seq = @num ELSE IF @num < 100 (SELECT @words = TTens.word + ' ' + TUnits.word FROM Sequence AS TUnits CROSS JOIN Sequence AS TTens WHERE TUnits.seq = (@num % 100) % 10 AND TTens.seq = (@num % 100) - (@num % 100) % 10 ) ELSE IF @num = 100 (SELECT @words = THundreds.word + ' Hundred' FROM Sequence AS THundreds WHERE THundreds.seq = (@num / 100) ) ELSE IF @num < 1000 ( SELECT @words = THundreds.word + ' Hundred and ' + TTens.word + ' ' + TUnits.word FROM Sequence AS TUnits CROSS JOIN Sequence AS TTens CROSS JOIN Sequence AS THundreds WHERE TUnits.seq = (@num % 100) % 10 AND TTens.seq = (@num % 100) - (@num % 100) % 10 AND THundreds.seq = (@num / 100) ) ELSE IF @num = 1000 (SELECT @words = TThousand.word + ' Thousand' FROM Sequence AS TThousand WHERE TThousand.seq = (@num / 1000) ) ELSE IF @num < 10000 ( SELECT @words = TThousand.word + ' Thousand ' + THundreds.word + ' Hundred and ' + TTens.word + ' ' + TUnits.word FROM Sequence AS TUnits CROSS JOIN Sequence AS TTens CROSS JOIN Sequence AS THundreds CROSS JOIN Sequence AS TThousand WHERE TUnits.seq = (@num % 100) % 10 AND TTens.seq = (@num % 100) - (@num % 100) % 10 AND THundreds.seq = (@num / 100) - (@num / 1000) * 10 AND TThousand.seq = (@num / 1000) ) ELSE SELECT @words = STR(@num) RETURN @words END 

现在testingfunction：

 SELECT NumberAsWords = dbo.udf_NumToWords(888); 

Answer 3

这是由安德鲁（所有信用安德鲁）上述答案的轻微修改，但这将返回结果在SQL查询，而不使用任何function

  WITH Sequence AS ( SELECT 0 seq ,'' word 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 ,'Seventy' UNION ALL SELECT 80 ,'Eighty' UNION ALL SELECT 90 ,'Ninty' ) ,CTENumbers AS ( SELECT 0 AS num --changezero to your starting number UNION ALL SELECT num + 1 FROM CTENumbers WHERE num + 1 <= 255 --change 255 to upper limit ) SELECT * ,CASE WHEN num = 0 THEN 'Zero' WHEN num < 20 THEN ( SELECT word FROM sequence WHERE seq = num ) WHEN num < 100 THEN ( SELECT TTens.word + ' ' + TUnits.word FROM Sequence AS TUnits CROSS JOIN Sequence AS TTens WHERE TUnits.seq = (num % 100) % 10 AND TTens.seq = (num % 100) - (num % 100) % 10 ) WHEN num < 1000 THEN ( SELECT THundreds.word + ' Hundred and ' + TTens.word + ' ' + TUnits.word FROM Sequence AS TUnits CROSS JOIN Sequence AS TTens CROSS JOIN Sequence AS THundreds WHERE TUnits.seq = (num % 100) % 10 AND TTens.seq = (num % 100) - (num % 100) % 10 AND THundreds.seq = (num / 100) ) WHEN num = 1000 THEN ( SELECT TThousand.word + ' Thousand' FROM Sequence AS TThousand WHERE TThousand.seq = (num / 1000) ) WHEN num < 10000 THEN ( SELECT TThousand.word + ' Thousand ' + THundreds.word + ' Hundred and ' + TTens.word + ' ' + TUnits.word FROM Sequence AS TUnits CROSS JOIN Sequence AS TTens CROSS JOIN Sequence AS THundreds CROSS JOIN Sequence AS TThousand WHERE TUnits.seq = (num % 100) % 10 AND TTens.seq = (num % 100) - (num % 100) % 10 AND THundreds.seq = (num / 100) - (num / 1000) * 10 AND TThousand.seq = (num / 1000) ) ELSE STR(num) END Number FROM CTENumbers OPTION (MAXRECURSION 10000) 

Answer 4

只要它有助于任何人，你可以创build一个数字表，并使用服务器端语言，如C＃填充它。 您也可以使用Humanizer库将数字转换为单词; 它也支持本地化。

SQL TABLE

 CREATE TABLE [Numbers]( [n] [bigint] NOT NULL, [InWords] [nvarchar](50) NULL, ) 

C＃代码

需要人性化

 var db = new MyDbContext(); for (int i = 1; i < 1000; i++) { db.Database.ExecuteSqlCommand($"INSERT INTO Numbers (n, InWords) VALUES({i}, '{i.ToWords()}')"); }