 
 CREATE TABLE "user" (
     id integer NOT NULL,
-    label character varying NOT NULL,
+    label character varying NOT NULL UNIQUE,
     is_admin boolean NOT NULL,
     hashed_password character varying
 );


CREATE TABLE switch (
    id integer NOT NULL,
    label character varying NOT NULL,
    type character varying NOT NULL
);



CREATE TABLE network (
    id integer NOT NULL,
    label character varying NOT NULL UNIQUE,
    creator_id integer,
    access_id integer,
    allocated boolean,
