with tbl as (
select
    SURVEY_YEAR
    , PF_CODE
    , TOTAL_VALUE
from CONVENIENCE
where SURVEY_YEAR=2018
    and KIND_CODE = '100'
    and TOTAL_VALUE is not null
)

insert into CONVENI_SALE_2018 (SURVEY_YEAR, PF_CODE, TOTAL_VALUE)
select SURVEY_YEAR, PF_CODE, TOTAL_VALUE from tbl