CREATE TABLE "Job" ( "id" int PRIMARY KEY, "user" varchar(255) CONSTRAINT user_email REFERENCES user(email), "...data" varchar(255), "q1" varchar(255) CONSTRAINT answer1_q1 REFERENCES answer1(q1), "q2" varchar(255) ); CREATE TABLE "user" ( "email" varchar(255) PRIMARY KEY ); CREATE TABLE "answer1" ( "id" int PRIMARY KEY, "q1" varchar(255), "answer" varchar(255), "user" varchar(255) CONSTRAINT user_emaik REFERENCES user(emaik) ); CREATE TABLE "student" ( "id" int PRIMARY KEY, "user" varchar(255) CONSTRAINT user_email REFERENCES user(email) ); CREATE TABLE "answer2" ( "id" int, "q2" varchar(255) CONSTRAINT Job_q2 REFERENCES Job(q2), "answer" varchar(255), "user" varchar(255) CONSTRAINT user_email REFERENCES user(email) );