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script.sql

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+CREATE SEQUENCE global_id_seq;
+
+CREATE TABLE Studenten (
+            matrikelnummer INTEGER PRIMARY KEY DEFAULT nextval('global_id_seq'),
+            "name VARCHAR(30) NOT NULL,
+            "email VARCHAR(30) NOT NULL,
+            "passwort VARCHAR(30) NOT NULL);
+
+
+ "CREATE TABLE Veranstalter (
+            ID INTEGER PRIMARY KEY DEFAULT nextval('global_id_seq'), 
+            name VARCHAR(30),
+            email VARCHAR(30),
+            passwort VARCHAR(30),
+            admin BOOLEAN NOT NULL DEFAULT(FALSE)
+
+            );
+
+
+CREATE TABLE krank (
+            veranstalter_ID INTEGER,
+            FOREIGN KEY (veranstalter_ID) REFERENCES veranstalterrrr(ID) ON DELETE CASCADE);
+
+
+            
+ CREATE VIEW studenten_veranstalterr AS 
+ SELECT matrikelnummer AS id, passwort, NULL AS admin FROM Studenten 
+     UNION ALL 
+ SELECT ID, passwort, admin FROM Veranstalterrrr;
+
+
+
+ CREATE TABLE Veranstaltung ( 
+            ID SERIAL PRIMARY KEY, 
+            ort VARCHAR(30) NOT NULL, 
+            raum VARCHAR(30) NOT NULL, 
+            name VARCHAR(30) NOT NULL );
+
+
+
+
+   CREATE TABLE Uhrzeit ( 
+            ID SERIAL PRIMARY KEY, 
+            anfangszeit TIME NOT NULL, 
+            endzeit TIME NOT NULL );
+
+
+
+    INSERT INTO Uhrzeit (anfangszeit, endzeit) VALUES 
+            ('08:00:00', '10:00:00'), 
+            ('10:00:00', '12:00:00'), 
+            ('12:00:00', '14:00:00'), 
+            ('14:00:00', '16:00:00'), 
+            ('16:00:00', '18:00:00');