Question

我在sql server数据库中有一个unicode列nvarchar。我在本地化的“Indian Language GUJARATI”中将数值存储在该列中。如何在nvarchar列上使用sum，avg等聚合函数。

注意：该nvarchar列包含本地化语言的unicode数据。

Answer 1

我在sql server和.net中都有以下程序。

将英语转换为古吉拉特语Unicode和将古吉拉特语Unicode转换为英语数字

.net Code

public static class global
{
    public static string Translate(string source, string fromStr, string toStr)
    {

        string result = "";
        foreach (var sourceChar in source)
        {
            int pos = fromStr.IndexOf(sourceChar);
            if ((pos >= 0) && (pos < toStr.Length))
            {
                result += toStr[pos];
            }
        }

        return result;
    }

    public static string ToGujDig(this object   source)
    {
        string fromStr = ".0123456789";
        string toStr = ".\u0AE6\u0AE7\u0AE8\u0AE9\u0AEA\u0AEB\u0AEC\u0AED\u0AEE\u0AEF\u0AF0";

        string result = "";
        string s = source.ToString();

        foreach (var sourceChar in s)
        {
            int pos = fromStr.IndexOf(sourceChar);
            if ((pos >= 0) && (pos < toStr.Length))
            {
                result += toStr[pos];
            }
        }

        return result;
    }

    public static string ToEngDig(this string  source)
    {
        string fromStr =     ".\u0AE6\u0AE7\u0AE8\u0AE9\u0AEA\u0AEB\u0AEC\u0AED\u0AEE\u0AEF\u0AF0";
        string toStr = ".0123456789";

        string result = "";
        string s = source.ToString();

        foreach (var sourceChar in s)
        {
            int pos = fromStr.IndexOf(sourceChar);
            if ((pos >= 0) && (pos < toStr.Length))
            {
                result += toStr[pos];
            }
        }

        return result;
    }
}

sql server code

传递数值并获取unicode值

CREATE FUNCTION [dbo].[NumericToUnicode]
(
      @String VARCHAR(50)
)
RETURNS NVARCHAR(50)

BEGIN

DECLARE @rString NVARCHAR(50) 
set @rString= N''

DECLARE @length INT 
set @length = LEN(@String)

DECLARE @position INT 
set @position= 1

WHILE @position <= @length
BEGIN

      IF (ASCII(SUBSTRING(@String, @position, 1))) = 46
            SET @rString = @rString + N'.'
      ELSE
            SET @rString = @rString + NCHAR(ASCII(SUBSTRING(@String, @position, 1)) + 2742)
            SET @position = @position + 1
END

RETURN @rString

END

-- Test it
SELECT [dbo].[NumericToUnicode]('50.0')  or
SELECT [dbo].[NumericToUnicode](50.12)

传递unicode值并获取数字值

Create  FUNCTION [dbo].[UnicodeToNumeric]
(
    @nString NVARCHAR(50)
)
RETURNS NUMERIC(12,2)
BEGIN 

DECLARE @rString NVARCHAR(50) 
set @rString=''

DECLARE @position INT 
set @position=1

WHILE @position <= LEN(@nString)
BEGIN
    IF (UNICODE(SUBSTRING(@nString, @position, 1))) = 46
        SET @rString = @rString + CHAR(UNICODE(SUBSTRING(@nString, @position, 1)))
    ELSE
                SET @rString = @rString + CHAR(UNICODE(SUBSTRING(@nString, @position, 1)) - 2742)
    SET @position = @position + 1

END

RETURN @rString
END

希望这有帮助。

在unicode列sql server上使用聚合函数[执行计算]

1 个答案:

.net Code

sql server code