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|
table t1 : {A : int, B : string, C : float, D : bool}
table t2 : {A : float, D : int}
datatype list a = Nil | Cons of a * list a
(*val q1 = (SELECT * FROM t1)*)
val q1 = (SELECT * FROM t1 WHERE t1.A = 0)
val r1 : transaction (list {A : int, B : string, C : float, D : bool}) =
query q1
(fn fs acc => return (Cons (fs.T1, acc)))
Nil
val r2 : transaction string =
ls <- r1;
return (case ls of
Nil => "Problem"
| Cons ({B = b, ...}, _) => b)
val main : unit -> transaction page = fn () =>
s <- r2;
return <html><body>
{cdata s}
</body></html>
|
