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Home -> Community -> Usenet -> c.d.o.misc -> Re: Oracle Sort but not constrainted
A copy of this was sent to sknott_deja_at_my-dejanews.com
(if that email address didn't require changing)
On Fri, 09 Apr 1999 14:36:17 GMT, you wrote:
>Hi,
>
>I am attempting to do a query of an airline database like:
>
>Flight_Id Number(5)
>Airline Varchar(2)
>Depart_Date Number(8)
>Dapart_Time Number(4)
>
>select * from airline_flights where Depart_Date = 19990410;
>
>But I need to sort the Airline Codes by a specified list which
>may be different each time I do a query. For example, I do the
>above query, but want codes 'NW' and 'UA' to be at the top of the
>table. Next query might need 'US' at the top.
>
decode might help.
select * from airline_flights where Depart_Date = 19990410 order by decode( airline, 'US', 1, 2 ), airline;
would order the result set with US first and the all others by airline code after that.
select * from airline_flights where Depart_Date = 19990410 order by decode( airline, 'NW', 1, 'UA', 1, 2 ), airline;
That would put NW and UA first and then all others after that...
>Is this possible? If so, can someone head me in the right direction?
>
>Thanks,
>Steve K.
>
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Thomas Kyte
tkyte_at_us.oracle.com
Oracle Service Industries
Reston, VA USA
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