Hi,
If I want to select a result that based on the value of count (eg.
count(*) > 5), how can I write a sql to do that?
eg.
select count(*)>5
from Flight
where OperationType = "Departure"
group by Airline, Runway
order by Date
Thanks
D 2 1626
On 13/07/2005, bsder wrote: If I want to select a result that based on the value of count (eg. count(*) > 5), how can I write a sql to do that?
eg. select count(*)>5 from Flight where OperationType = "Departure" group by Airline, Runway order by Date
select *
from Flight
where OperationType = "Departure"
group by Airline, Runway
order by Date
HAVING count(*)>5
--
felix
I don't believe it's possible in one query, but I can't guarantee.
I do it in two queries :
select <primarykey>, count(airline) as cnt_airline into temporary table
FLIGHT_GREATER5
from Flight
where OperationType = "Departure"
group by Airline, Runway
HAVING cnt_airline > 5;
select Flight.*
from Flight, FLIGHT_GREATER5
where Flight.<primary key> = FLIGHT_GREATER5 .<primarykey>; This thread has been closed and replies have been disabled. Please start a new discussion. Similar topics |
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