adamc@229: table t1 : {A : int, B : string, C : float} adamc@229: table t2 : {A : float, D : int} adamc@229: adamc@229: val q1 = (SELECT * FROM t1 adamc@229: UNION SELECT * FROM t1) adamc@229: val q2 = (SELECT t1.A, t1.B FROM t1 WHERE t1.A = 0 adamc@229: INTERSECT SELECT t1.B, t1.A FROM t1 WHERE t1.B = t1.B) adamc@229: val q3 = (SELECT t1.A, t1.B, t1.C FROM t1 WHERE t1.A = 0 adamc@229: INTERSECT SELECT * FROM t1 WHERE t1.B = 'Hello world!' adamc@260: EXCEPT SELECT * FROM t1 WHERE t1.A < t1.A adamc@260: UNION SELECT * FROM t1 WHERE t1.A > t1.A) adamc@260: adamc@260: datatype list a = Nil | Cons of a * list a adamc@260: adamc@260: val r1 : transaction (list {A : int, B : string, C : float}) = adamc@260: query q3 adamc@260: (fn fs acc => return (Cons (fs.T1, acc))) adamc@260: Nil adamc@260: adamc@260: val r2 : transaction string = adamc@260: ls <- r1; adamc@260: return (case ls of adamc@260: Nil => "Problem" adamc@260: | Cons ({B = b, ...}, _) => b) adamc@260: adamc@260: val main : unit -> transaction page = fn () => adamc@260: s <- r2; adamc@1070: return adamc@260: {cdata s} adamc@1070: