sql中数字转换为金额大写

在SQL中，将数字转换为金额的大写形式通常涉及到字符串处理函数和一些货币相关的格式化规则。这取决于你使用的数据库管理系统，因为不同系统可能会有不同的内置函数或者自定义函数。以下是一个基本的例子，展示了如何在MySQL中进行这种转换：

SELECT 
    DECIMAL_FORMAT(number_column, '0,0.00', 2) AS formatted_amount,
    UPPER(LEFT(REPLACE(FORMAT(DECIMAL_FORMAT(number_column, '0,0.00', 2), '.', ','), '-', ''), 4)) ||
    RIGHT('零壹贰叁肆伍陆柒捌玖拾佰仟萬拾佰元', LENGTH(Uppercase(REPLACE(FORMAT(DECIMAL_FORMAT(number_column, '0,0.00', 2), '.', ',')))-4))
FROM table_name;

在这个示例中，`DECIMAL_FORMAT`用于四舍五入并格式化数字，然后使用`UPPER`、`LEFT`、`REPLACE`和`RIGHT`等函数把数字转换为中文大写的表示。

请注意，这个例子假设数字是正数，并且金额有固定的四位小数点。如果需要更复杂的情况，例如负数或者不同的小数位数，你可能需要调整函数的参数和替换规则。

相关问题

sql 数字转换成大写金额

在 SQL 中将数字转换成大写金额可以通过自定义函数来实现。以下是一个示例：

CREATE FUNCTION dbo.NumToCny (@Num DECIMAL(18,2))
RETURNS VARCHAR(1024)
AS
BEGIN
    -- 数字对应的大写汉字
    DECLARE @CnyTable TABLE (Num INT, Cny VARCHAR(16))
    INSERT INTO @CnyTable (Num, Cny) VALUES (0, '零'), (1, '壹'), (2, '贰'), (3, '叁'), (4, '肆'), (5, '伍'), (6, '陆'), (7, '柒'), (8, '捌'), (9, '玖')

    -- 金额单位对应的汉字
    DECLARE @UnitTable TABLE (Unit INT, Cny VARCHAR(8))
    INSERT INTO @UnitTable (Unit, Cny) VALUES (0, ''), (1, '拾'), (2, '佰'), (3, '仟'), (4, '万'), (5, '拾'), (6, '佰'), (7, '仟'), (8, '亿'), (9, '拾'), (10, '佰'), (11, '仟')

    DECLARE @Cny VARCHAR(1024) = ''
    DECLARE @IntPart BIGINT = CAST(@Num AS BIGINT)
    DECLARE @DecPart DECIMAL(18,2) = @Num - @IntPart

    IF @IntPart = 0
        SET @Cny = '零元'
    ELSE
        BEGIN
            -- 整数部分转换
            DECLARE @IntCny VARCHAR(1024) = ''
            DECLARE @Unit INT = 0
            WHILE @IntPart > 0
                BEGIN
                    DECLARE @Num INT = @IntPart % 10
                    DECLARE @UnitCny VARCHAR(8) = (SELECT Cny FROM @UnitTable WHERE Unit = @Unit)
                    DECLARE @NumCny VARCHAR(16) = (SELECT Cny FROM @CnyTable WHERE Num = @Num)
                    IF @Num = 0 AND (@Unit = 4 OR @Unit = 8)
                        SET @IntCny = @NumCny + @UnitCny + @IntCny
                    ELSE
                        SET @IntCny = @NumCny + @UnitCny + @IntCny
                    SET @IntPart = @IntPart / 10
                    SET @Unit = @Unit + 1
                END
            SET @Cny = @IntCny + '元'
        END

    -- 小数部分转换
    IF @DecPart > 0
        BEGIN
            DECLARE @DecCny VARCHAR(1024) = ''
            DECLARE @DecString VARCHAR(18) = REPLACE(CAST(@DecPart AS VARCHAR(18)), '0.', '')
            DECLARE @Len INT = LEN(@DecString)
            DECLARE @i INT = 1
            WHILE @i <= @Len
                BEGIN
                    DECLARE @Num INT = CAST(SUBSTRING(@DecString, @i, 1) AS INT)
                    DECLARE @NumCny VARCHAR(16) = (SELECT Cny FROM @CnyTable WHERE Num = @Num)
                    DECLARE @UnitCny VARCHAR(8) = (SELECT Cny FROM @UnitTable WHERE Unit = -@i)
                    SET @DecCny = @DecCny + @NumCny + @UnitCny
                    SET @i = @i + 1
                END
            SET @Cny = @Cny + @DecCny + '分'
        END

    RETURN @Cny
END

使用方法：

SELECT dbo.NumToCny(1234567.89) AS CnyAmount
-- 输出：壹佰贰拾叁万肆仟伍佰陆拾柒元捌角玖分

sql 金额数字转换大写

你可以使用以下SQL函数将金额数字转换为大写：

CREATE FUNCTION dbo.ConvertToWords (@NumValue DECIMAL(19, 2))
RETURNS NVARCHAR(4000)
AS BEGIN
    DECLARE @WholePart BIGINT
    DECLARE @FractionalPart INT
    DECLARE @Words NVARCHAR(4000)

    SELECT @WholePart = CONVERT(BIGINT, FLOOR(@NumValue))
    SELECT @FractionalPart = CONVERT(INT, (@NumValue - @WholePart) * 100)

    -- Whole part conversion
    SELECT @Words = dbo.ConvertNumber(@WholePart) + ' dollars '

    -- Fractional part conversion
    IF @FractionalPart > 0 BEGIN
        SELECT @Words = @Words + 'and ' + dbo.ConvertNumber(@FractionalPart) + ' cents'
    END

    RETURN @Words
END
GO

CREATE FUNCTION dbo.ConvertNumber (@Number BIGINT)
RETURNS NVARCHAR(4000)
AS BEGIN
    DECLARE @Units TABLE (UnitName NVARCHAR(10))
    DECLARE @Tens TABLE (TenName NVARCHAR(10))
    DECLARE @Teens TABLE (TeenName NVARCHAR(10))

    INSERT INTO @Units VALUES ('Zero'), ('One'), ('Two'), ('Three'), ('Four'), 
        ('Five'), ('Six'), ('Seven'), ('Eight'), ('Nine')

    INSERT INTO @Tens VALUES ('Ten'), ('Twenty'), ('Thirty'), ('Forty'), 
        ('Fifty'), ('Sixty'), ('Seventy'), ('Eighty'), ('Ninety')

    INSERT INTO @Teens VALUES ('Eleven'), ('Twelve'), ('Thirteen'), 
        ('Fourteen'), ('Fifteen'), ('Sixteen'), ('Seventeen'), 
        ('Eighteen'), ('Nineteen')

    DECLARE @Words NVARCHAR(4000)

    IF @Number >= 1000000000 BEGIN
        SELECT @Words = dbo.ConvertNumber(@Number / 1000000000) + ' billion '
        SELECT @Number = @Number % 1000000000
    END

    IF @Number >= 1000000 BEGIN
        SELECT @Words = @Words + dbo.ConvertNumber(@Number / 1000000) + ' million '
        SELECT @Number = @Number % 1000000
    END

    IF @Number >= 1000 BEGIN
        SELECT @Words = @Words + dbo.ConvertNumber(@Number / 1000) + ' thousand '
        SELECT @Number = @Number % 1000
    END

    IF @Number >= 100 BEGIN
        SELECT @Words = @Words + dbo.ConvertNumber(@Number / 100) + ' hundred '
        SELECT @Number = @Number % 100
    END

    IF @Number >= 20 BEGIN
        SELECT @Words = @Words + (SELECT TenName FROM @Tens WHERE (ROW_NUMBER() OVER (ORDER BY (SELECT NULL))) = (@Number / 10)) + ' '
        SELECT @Number = @Number % 10
    END

    IF @Number > 10 AND @Number < 20 BEGIN
        SELECT @Words = @Words + (SELECT TeenName FROM @Teens WHERE (ROW_NUMBER() OVER (ORDER BY (SELECT NULL))) = (@Number - 10)) + ' '
        SELECT @Number = 0
    END

    IF @Number > 0 BEGIN
        SELECT @Words = @Words + (SELECT UnitName FROM @Units WHERE (ROW_NUMBER() OVER (ORDER BY (SELECT NULL))) = @Number) + ' '
    END

    RETURN RTRIM(@Words)
END
GO

要使用这个函数，你可以像这样调用它：

SELECT dbo.ConvertToWords(12345.67) AS AmountInWords

该函数将返回 "Twelve thousand three hundred forty-five dollars and sixty-seven cents"。

请注意，此示例仅处理最多十亿美元的金额。如果需要处理更大的金额，请根据需要进行修改。