with TBLA as (
select strftime('%Y-%m',SALES_DATE) as  YEAR_MONTH
    ,  sum(SALES_AMT) as MONTH_AMT
from SALES
where UPDATED_NO is NULL
    and  YEAR_MONTH >= '2022-01'
group by  YEAR_MONTH
)
, TBLB as (
select  YEAR_MONTH , MONTH_AMT
    , SUM(MONTH_AMT) OVER ( order by YEAR_MONTH rows between 11 preceding and current row ) as YEAR_MOVE_AMT
from TBLA
)
select  YEAR_MONTH , MONTH_AMT 
    , SUM(MONTH_AMT) OVER ( order by  YEAR_MONTH ) as CUML_AMT
    , YEAR_MOVE_AMT
from TBLB
where  YEAR_MONTH between '2023-01' and '2023-12'
order by  YEAR_MONTH asc