On 07/04/2018 05:08 PM, Adrian Klaver wrote:
On 07/04/2018 03:03 PM, Ron wrote:
On 07/04/2018 10:32 AM, hmidi slim wrote:
Actually, I need the use of case because based on the numberOfPremiumDays there are different type of treatment:
select numberOfPremiumDays
            case  when numberOfPremiumDays = date_part('day', ('2018-11-05'::timestamp) - ('2018-11-01'::timestamp)) then
                select product_id,
                premium_price,
                period_price
                from product
                where occupation_type_id = 1
                group by product_id, occupation_type_id
           else
                select product_id,
                classic_price,
                period_price
                from product1
                where occupation_type_id = 1
                group by product_id, occupation_type_id


Then try:
select product_id,
case when numberOfPremiumDays = date_part('day', ('2018-11-05'::timestamp) - ('2018-11-01'::timestamp)) then
            premium_price
        else
            period_price
        end as the_price
from product
where occupation_type_id = 1
order by product_id, occupation_type_id

The issue with the above is that table changes from product to product1 in the OP's desired behavior so the price switch alone will not work:(

Ah, didn't notice that.  Then... dynamic sql constructed by the programming language executing the query?


--
Angular momentum makes the world go 'round.

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