VSTO (Access) - Como verificar se duas tabelas são iguais?

public bool TablesAreEqual(string MyTableSource, string MyTableToCompare, string MyIndexField)
        {  
Access.Application oAccess = ((Access.Application)
(Marshal.GetActiveObject("Access.Application")));
                        
            try
            {
                OleDbConnection cnn;
                using (DataSet ds = new DataSet())
                {
                    OleDbDataAdapter da;
                    string cs = oAccess.CurrentProject.Connection.ToString();
                    string strSQL = String.Format("SELECT * FROM {0} LEFT JOIN {1} ON {0}.{2} = {1}.{2}WHERE {1}.{2} Is Null"
                        , MyTableSource, MyTableToCompare, MyIndexField);
                    cnn = new OleDbConnection(cs);
                    da = new OleDbDataAdapter(strSQL, cnn);
                    da.Fill(ds);
                    if (ds.Tables[0].Rows.Count <= 0)
                        return true;
                    else
                        return false;
                }
            }
            catch (Exception)
            {
                throw;
            }
            finally
            {
                Marshal.ReleaseComObject(oAccess);
            }
        }