public static string GetTableColumns(string TableName) { var ProCols = new List <string>(); var Schema10 = H3DBHelper.GetTableSchema(TableName, "V10"); var Schema9 = H3DBHelper.GetTableSchema(TableName, "V9"); foreach (var filed in Schema10) { var tt = Schema9.Where(a => a.Name == filed.Name); if (Schema9.Contains(filed)) { ProCols.Add("[" + filed.Name + "]"); } } return(string.Join(",\n", ProCols.ToArray())); }