在MySQL中将数字转换为单词 [英] Converting a number into a word in Mysql

问题描述

我从数据库中获取一个值，并且希望将此值转换为 Mysql 中的单词.有人可以帮我吗?

I am getting a value from database and I want this value to be converted into a word in Mysql. can someone please help me out.

例如: 123 ->该值从数据库中获取，并以数字形式保存，我想将此值检索为 123.从数据库中获取.

Eg: 123 --> this value am getting from database and it is getting saved in a numeric form and I want to retrieve this value as hundred and twenty three from the database.

这样做的语法是什么?

查询是这样的:

select 'value' from value_table where date is '10-10-2012';

ans是-> 123

ans is--> 123

我希望此值显示为123.

I want this value to be displayed as hundred and twenty three.

推荐答案

我认为这可以帮助您...这只是一种方法:

I think this can help you... it's just a way to do it:

DELIMITER $$
CREATE FUNCTION `number_to_string`(n INT) RETURNS varchar(100)
BEGIN
    -- This function returns the string representation of a number.
    -- It's just an example... I'll restrict it to hundreds, but
    -- it can be extended easily.
    -- The idea is: 
    --      For each digit you need a position,
    --      For each position, you assign a string
    declare ans varchar(100);
    declare dig1, dig2, dig3 int; -- (one variable per digit)

    set ans = '';

    set dig3 = floor(n / 100);
    set dig2 = floor(n / 10) - dig3*10;
    set dig1 = n - (dig3*100 + dig2*10);

    if dig3 > 0 then
        case
            when dig3=1 then set ans=concat(ans, 'one hundred');
            when dig3=2 then set ans=concat(ans, 'two hundred');
            when dig3=3 then set ans=concat(ans, 'three hundred');
            when dig3=4 then set ans=concat(ans, 'four hundred');
            when dig3=5 then set ans=concat(ans, 'five hundred');
            when dig3=6 then set ans=concat(ans, 'six hundred');
            when dig3=7 then set ans=concat(ans, 'seven hundred');
            when dig3=8 then set ans=concat(ans, 'eight hundred');
            when dig3=9 then set ans=concat(ans, 'nine hundred');
            else set ans = ans;
        end case;
    end if;

    if dig2 = 1 then
        case
            when (dig2*10 + dig1) = 10 then set ans=concat(ans,' ten');
            when (dig2*10 + dig1) = 11 then set ans=concat(ans,' eleven');
            when (dig2*10 + dig1) = 12 then set ans=concat(ans,' twelve');
            when (dig2*10 + dig1) = 13 then set ans=concat(ans,' thirteen');
            when (dig2*10 + dig1) = 14 then set ans=concat(ans,' fourteen');
            when (dig2*10 + dig1) = 15 then set ans=concat(ans,' fifteen');
            when (dig2*10 + dig1) = 16 then set ans=concat(ans,' sixteen');
            when (dig2*10 + dig1) = 17 then set ans=concat(ans,' seventeen');
            when (dig2*10 + dig1) = 18 then set ans=concat(ans,' eighteen');
            when (dig2*10 + dig1) = 19 then set ans=concat(ans,' nineteen');
            else set ans=ans;
        end case;
    else
        if dig2 > 0 then
            case
                when dig2=2 then set ans=concat(ans, ' twenty');
                when dig2=3 then set ans=concat(ans, ' thirty');
                when dig2=4 then set ans=concat(ans, ' fourty');
                when dig2=5 then set ans=concat(ans, ' fifty');
                when dig2=6 then set ans=concat(ans, ' sixty');
                when dig2=7 then set ans=concat(ans, ' seventy');
                when dig2=8 then set ans=concat(ans, ' eighty');
                when dig2=9 then set ans=concat(ans, ' ninety');
                else set ans=ans;
            end case;
        end if;
        if dig1 > 0 then
            case
                when dig1=1 then set ans=concat(ans, ' one');
                when dig1=2 then set ans=concat(ans, ' two');
                when dig1=3 then set ans=concat(ans, ' three');
                when dig1=4 then set ans=concat(ans, ' four');
                when dig1=5 then set ans=concat(ans, ' five');
                when dig1=6 then set ans=concat(ans, ' six');
                when dig1=7 then set ans=concat(ans, ' seven');
                when dig1=8 then set ans=concat(ans, ' eight');
                when dig1=9 then set ans=concat(ans, ' nine');
                else set ans=ans;
            end case;
        end if;
    end if;

    return trim(ans);
END$$

DELIMITER ;

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