• all the code inserting the data has to use the same datatype : NVARCHAR or NCHAR.

    code as simple looking as

    try this code example out and see what happens if you mix varchar and nvarchar implicit conversion into the mix:

    declare @var varchar(10),

    @nvar nvarchar(10)

    SELECT @var = '??/??' ,@nvar = '??/??'

    SELECT @var,@nvar

    SELECT @var = N'??/??' ,@nvar = N'??/??'

    SELECT @var,@nvar

    Lowell


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