This sample illustrates use of HAVING clause.
The query retrieves average ticket price for every venue using events that happened before.
select e1."VenueNo", avg(e1."Ticket_price") as "avgTicket_price"
from "events" e1
group by e1."VenueNo"
having ((e1."Event_Date" < now))
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Current version: 7.95
Released: February 08, 2023
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