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fix a bug

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This commit is contained in:
Andreas Zweili 2017-05-27 18:15:19 +02:00
parent 456129e2c8
commit fee6e74cd6
1 changed files with 4 additions and 4 deletions
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8
db/3_sem/is_an_aircraft/is_an_aircraft/create_table.sql
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@ -40,19 +40,19 @@ if not exists (select * from sysobjects where name='Zeppelin')
);
-- Foreign Key Constraints hinzufügen
IF OBJECT_ID('dbo.[FK_LFZ_ID]', 'F') IS NULL
ALTER TABLE Flugzeug ADD CONSTRAINT FK_LFZ_ID
IF OBJECT_ID('dbo.[FK_FLZ_ID]', 'F') IS NULL
ALTER TABLE Flugzeug ADD CONSTRAINT FK_FLZ_ID
FOREIGN KEY (FLZ_ID) REFERENCES Luftfahrzeug (LFZ_ID);
go
-- Foreign Key Constraints hinzufügen
IF OBJECT_ID('dbo.[FK_LFZ_ID]', 'F') IS NULL
IF OBJECT_ID('dbo.[FK_HUB_ID]', 'F') IS NULL
ALTER TABLE Hubschrauber ADD CONSTRAINT FK_HUB_ID
FOREIGN KEY (HUB_ID) REFERENCES Luftfahrzeug (LFZ_ID);
go
-- Foreign Key Constraints hinzufügen
IF OBJECT_ID('dbo.[FK_LFZ_ID]', 'F') IS NULL
IF OBJECT_ID('dbo.[FK_ZEP_ID]', 'F') IS NULL
ALTER TABLE Zeppelin ADD CONSTRAINT FK_ZEP_ID
FOREIGN KEY (ZEP_ID) REFERENCES Luftfahrzeug (LFZ_ID);
go