The following lines were added (+) and removed (-):
vbNullString: The same as "", as in an empty string. It is more efficient to use vbNullString though. use it instead of ""* '''vbNullString''': The same as "", as in an empty string. It is more efficient to use vbNullString though. use it instead of ""vbNull: This is supposed to be NULL but actually equals 1.* '''vbNull''': This is supposed to be NULL but actually equals 1.vbNullChar: * '''vbNullChar''': Null: Used for writing NULL in SQL standard, a NULL to the database, which will appear as a 0 in a numeric field.* '''Null''': Used for writing NULL in SQL standard, a NULL to the database, which will appear as a 0 in a numeric field.