Initial commit

migrations/2020-07-23-093057_add_vertretung/down.sql

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+-- This file should undo anything in `up.sql`

migrations/2020-07-23-093057_add_vertretung/up.sql

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+-- Your SQL
+CREATE TABLE Vertretungen (
+  id Integer PRIMARY KEY NOT NULL,
+  klasse Integer not null,
+  stunde Integer not null,
+  fehlend Text NOT NULL,
+  vertretung Text NOT NULL,
+  kommentar Text NOT NULL,
+  FOREIGN KEY(klasse) REFERENCES klasse(id),
+  FOREIGN KEY(stunde) REFERENCES stunde(id)
+);