Question

I have a problem set where i have to insert a unique unicode character (or set of characters) to each record in Sql server. Is there any way to do that using identity specification or any other way to get it?

The algorithm will return unicode equivalent of :

[1],[2],[3]...[128],[1][1],[1][2],[1][3],....[1][128]

Answer 1

This script will generate the list of characters you are looking for:

SELECT REPLICATE(NCHAR(127), [ROW_NUMBER] / 128) + CHAR([ROW_NUMBER] - ([ROW_NUMBER] / 128) * 128)
    FROM (
        SELECT [ROW_NUMBER] = ROW_NUMBER() OVER(ORDER BY [e].[EmployeeKey])
            FROM [dbo].[DimEmployee] [e]) [sub]

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EDIT Changed CHAR to NCHAR