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set echo on;
alter session set nls_language = english;alter session set nls_date_format = 'DD-MON-YYYY';alter session set nls_date_language = english;
create table FLUGHAFEN (FHC varchar(3),LAND varchar(3),STADT varchar(50) default null,NAME varchar(50) default null,constraint FLUGHAFEN_PS primary key (FHC));
create table FLUGLINIE (FLC varchar(2),LAND varchar(3),HUB varchar(3) default null,NAME varchar(30) default null,ALLIANZ varchar(20) default null,constraint FLUGLINIE_LAND_NN check (LAND is not null),constraint FLUGLINIE_ALLIANZ_CHK check (ALLIANZ in ('Star','Excellence','Leftover','OneWorld','SkyTeam')),constraint FLUGLINIE_PS primary key (FLC),constraint FLUGLINIE_FS_HUB foreign key (HUB) references FLUGHAFEN(FHC))HORIZONTAL (FLC('CC','KK'));
create table FLUG (FNR integer,FLC varchar(2),FLNR integer, VON varchar(3),NACH varchar(3),AB integer,AN integer,constraint FLUG_VON_NN check (VON is not null),constraint FLUG_NACH_NN check (NACH is not null),constraint FLUG_AB_NN check (AB is not null),constraint FLUG_AN_NN check (AN is not null),constraint FLUG_AB_CHK check (AB between 0 and 2400),constraint FLUG_AN_CHK check (AN between 0 and 2400),constraint FLUG_VONNACH_CHK check (VON != NACH),constraint FLUG_PS primary key (FNR),constraint FLUG_FS_FLC foreign key (FLC) references FLUGLINIE(FLC),constraint FLUG_FS_VON foreign key (VON) references FLUGHAFEN(FHC),constraint FLUG_FS_NACH foreign key (NACH) references FLUGHAFEN(FHC))HORIZONTAL (AB(0800,1200));
create table PASSAGIER (PNR integer,NAME varchar(40),VORNAME varchar(40) default null, LAND varchar(3) default null,constraint PASSAGIER_NAME_NN check (NAME is not null),constraint PASSAGIER_PS primary key (PNR))HORIZONTAL (PNR(35,70));
create table BUCHUNG (BNR integer,PNR integer,FLC varchar(2),FLNR integer, VON varchar(3),NACH varchar(3),TAG varchar(20),MEILEN integer,PREIS integer,constraint BUCHUNG_NACH_NN check (NACH is not null),constraint BUCHUNG_MEILEN_NN check (MEILEN is not null),constraint BUCHUNG_PREIS_NN check (PREIS is not null),constraint BUCHUNG_MEILEN_CHK check (MEILEN >= 0),constraint BUCHUNG_PREIS_CHK check (PREIS > 0),constraint BUCHUNG_PS primary key (BNR),constraint BUCHUNG_FS_PNR foreign key (PNR) references PASSAGIER(PNR),constraint BUCHUNG_FS_FLC foreign key (FLC) references FLUGLINIE(FLC),constraint BUCHUNG_FS_VON foreign key (VON) references FLUGHAFEN(FHC),constraint BUCHUNG_FS_NACH foreign key (NACH) references FLUGHAFEN(FHC))HORIZONTAL (VON('FFF','GGG'));
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