如何避免在這裏除以零誤差？

Question

下面的查詢，我是0誤差遇到鴻溝：

select pp.building_name, 
     ld.tenant_trading_name, 
     tenancy_reference, 
     ld.turnover_threshold, 
     ld.percentage_rent, 
     ld.income_base_rent_ach, 
     ld.income_base_rent_ach/ld.percentage_rent as correct 
from 
    lease_deal.lease ld 

inner join property.property pp 
    on ld.building_id = pp.building_id 

where 
    (ld.income_base_rent_ach/ld.percentage_rent) <> ld.turnover_threshold 
    and lease_status = 'APPROVED' 
    and ld.progenesis_load_date is null 
order by pp.building_name 

我試着通過以下操作來糾正這一點 - 但我收到一個語法錯誤，我不確定爲什麼？這裏的語法錯誤是什麼？

select pp.building_name, 
     ld.tenant_trading_name, 
     tenancy_reference, 
     ld.turnover_threshold, 
     ld.percentage_rent, 
     ld.income_base_rent_ach, 
     ld.income_base_rent_ach/ld.percentage_rent as correct 
from 
    lease_deal.lease ld 

inner join property.property pp 
    on ld.building_id = pp.building_id 

where 
    case when ld.percentage_rent = 0 
    then 1=1 
    else ((ld.income_base_rent_ach/ld.percentage_rent) <> ld.turnover_threshold) 
    end 
    and lease_status = 'APPROVED' 
    and ld.progenesis_load_date is null 
order by pp.building_name 

Answer 1

如何與

ld.income_base_rent_ach <> (ld.percentage_rent * ld.turnover_threshold)