编辑: 向日葵8AS 2019-07-07

t make sense for a non-existing FLIGHT-SCHEDULE entity to have a DEPT-AIRPORT DEPT-AIRPORT FLIGHT# AIRPORT-CODE

101 atl

912 cph

545 lax

242 bos FLIGHT# AIRLINE WEEKDAY PRICE FLIGHT-SCHEDULE

101 delta mo

156 545 american we

110 912 scandinavian fr

450 242 usair mo

231 Triggers and Stored........

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