59 lines
1.7 KiB
Transact-SQL
59 lines
1.7 KiB
Transact-SQL
-- Dateiname create_table.sql
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--
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-- Beschreibung: Is an Airplane Übung
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--
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-- Autor: Andreas Zweili
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-- Datum: 2017-05-27
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-- Server Version: SQL Server 2016
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use Luftfahrzeuge
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if not exists (select * from sysobjects where name='Luftfahrzeug')
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CREATE TABLE Luftfahrzeug (
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LFZ_ID int not null,
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LFZ_HERSTELLER varchar(40) not null,
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LFZ_BAUJAHR integer not null,
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constraint PK_LFZ_ID primary key (LFZ_ID)
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);
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use Luftfahrzeuge
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if not exists (select * from sysobjects where name='Flugzeug')
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CREATE TABLE Flugzeug (
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FLZ_ID int not null,
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FLU_SPANNWEITE float,
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constraint PK_FLZ_ID primary key (FLZ_ID)
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);
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use Luftfahrzeuge
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if not exists (select * from sysobjects where name='Hubschrauber')
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CREATE TABLE Hubschrauber (
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HUB_ID int not null,
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HUB_ROTORDURCHMESSER float,
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constraint PK_HUB_ID primary key (HUB_ID)
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);
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use Luftfahrzeuge
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if not exists (select * from sysobjects where name='Zeppelin')
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CREATE TABLE Zeppelin (
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ZEP_ID int not null,
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ZEP_GASVOLUMEN float,
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constraint PK_ZEP_ID primary key (ZEP_ID)
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);
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-- Foreign Key Constraints hinzufügen
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IF OBJECT_ID('dbo.[FK_FLZ_ID]', 'F') IS NULL
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ALTER TABLE Flugzeug ADD CONSTRAINT FK_FLZ_ID
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FOREIGN KEY (FLZ_ID) REFERENCES Luftfahrzeug (LFZ_ID);
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go
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-- Foreign Key Constraints hinzufügen
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IF OBJECT_ID('dbo.[FK_HUB_ID]', 'F') IS NULL
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ALTER TABLE Hubschrauber ADD CONSTRAINT FK_HUB_ID
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FOREIGN KEY (HUB_ID) REFERENCES Luftfahrzeug (LFZ_ID);
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go
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-- Foreign Key Constraints hinzufügen
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IF OBJECT_ID('dbo.[FK_ZEP_ID]', 'F') IS NULL
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ALTER TABLE Zeppelin ADD CONSTRAINT FK_ZEP_ID
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FOREIGN KEY (ZEP_ID) REFERENCES Luftfahrzeug (LFZ_ID);
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go
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