CREATE TABLE IF NOT EXISTS "role" (
	"id" integer NOT NULL PRIMARY KEY AUTOINCREMENT,
	"name" text NOT NULL UNIQUE
);
INSERT INTO "role" (name) VALUES ('admin');
INSERT INTO "role" (name) VALUES ('cox');
INSERT INTO "role" (name) VALUES ('scheckbuch');
INSERT INTO "role" (name) VALUES ('tech');

CREATE TABLE IF NOT EXISTS "user_role" (
	"user_id" INTEGER NOT NULL REFERENCES user(id),
	"role_id" INTEGER NOT NULL REFERENCES role(id),
	CONSTRAINT unq UNIQUE (user_id, role_id) 
);