UPDATE statement on an MDB

the UPDATE statement with the OleDbCommand class wont work with me :(
i cant seem to get it right

i use for an example the following statement:

'update tbl_DynCountry set Country = @Country where CountryID = @CountryID'

then i add the parameters, and i add the database connection to the command!

when i am in debugmode, everything seems ok, dataconnection is open,
parameters are attached, with the right value,
then i use the method

command.ExecuteNonQuery();

and the return value is 0 -- meaning 0 rows affected!

i cant seem to find the problem :(

insert statements are working fine, but the update aint :(

did anybody have the same problem in the past??? and how do i solve it?


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