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Posted to derby-dev@db.apache.org by "Andrew McIntyre (JIRA)" <de...@db.apache.org> on 2006/08/05 00:04:14 UTC
[jira] Resolved: (DERBY-1319) Need documentation on the toursdb
demo database
[ http://issues.apache.org/jira/browse/DERBY-1319?page=all ]
Andrew McIntyre resolved DERBY-1319.
------------------------------------
Fix Version/s: 10.2.0.0
Resolution: Fixed
Derby Info: (was: [Patch Available])
Committed DERBY-1319_20060725_2.diff with revision 428899.
> Need documentation on the toursdb demo database
> -----------------------------------------------
>
> Key: DERBY-1319
> URL: http://issues.apache.org/jira/browse/DERBY-1319
> Project: Derby
> Issue Type: Sub-task
> Components: Demos/Scripts
> Affects Versions: 10.2.0.0
> Reporter: Stan Bradbury
> Assigned To: Myrna van Lunteren
> Priority: Minor
> Fix For: 10.2.0.0
>
> Attachments: DERBY-1319_20060725.diff, DERBY-1319_20060725_2.diff
>
>
> Docuement the toursdb schema and provide examplet queries so toursdb can be used by newbie Derby users. To jump start this here is a query that demonstrates how to join the tables in the schema to list the with seats available on a given day from one city to another. It's not pretty - a good candidate for a view. (sans the hardcoded values listed below:
> This example hardcodes the following string values:
> Travel Date: '2004-04-12' , Departing city: Copenhagen , Destination city: Paris
> select f.flight_id, a.airline_full,
> fa.flight_date|| ' ' || f.depart_time Departing,
> CAST(orig_city.city_name ||', ' || orig_ctry.country as varchar(30)) as Origin,
> f.flying_time Hours, f.arrive_time Arriving,
> CAST(dest_city.city_name ||', ' || dest_ctry.country as varchar(30)) as Destination
> from flights f, airlines a, countries orig_ctry, cities orig_city,
> countries dest_ctry, cities dest_city, flightavailability fa
> where f.flight_id = fa.flight_id and f.segment_number = fa.segment_number
> and orig_city.airport = f.orig_airport and dest_city.airport = f.dest_airport
> and orig_city.country_iso_code = orig_ctry.country_iso_code
> and dest_city.country_iso_code = dest_ctry.country_iso_code
> and f.flight_id like a.airline || '%'
> and fa.flight_date = '2004-04-12'
> and (a.business_seats - fa.business_seats_taken) > 0
> and orig_city.city_name = 'Copenhagen' and dest_city.city_name = 'Paris'
> order by f.flight_id, f.segment_number
> NOTE: uses some kludgy formatting tricks
> To cut N paste the query all at once into IJ set maximumdisplaywidth larger (about 985 characters in the query)
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