Any body please help about this question

SqlConnection Con;
    SqlCommand Cmd;
    SqlDataReader dr;

public string fn_insertCategoryDetails(string strCategoryName)
    {
        try
        {
            Con = new SqlConnection(ConfigurationManager.ConnectionStrings["yoConnectionString"].ConnectionString);
            Con.Open();
            Cmd = new SqlCommand("INSERT INTO InterviewCategories(Category)Values(@name)", Con);
            Cmd.Parameters.AddWithValue("@name", strCategoryName);

            if (Cmd.ExecuteNonQuery() > 0)
            {
                return "SUCCESS : Record has been inserted";
            }
            else
            {
                return "ERROR : SQL Exception";
            }
        }
        catch (Exception ex)
        {
            return "ERROR : " + ex.Message;
        }
        finally
        {
            if (Con != null)
            {
                Con.Close();
            }
        }
    }