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table t1 : {A : int, B : string, C : float, D : bool}
fun lookup (inp : {B : string}) =
s <- query (SELECT * FROM t1 WHERE t1.B = {inp.B})
(fn fs _ => return fs.T1)
{A = 0, B = "Couldn't find it!", C = 0.0, D = False};
return <html><body>
A: {cdata (show _ s.A)}<br/>
B: {cdata (show _ s.B)}<br/>
C: {cdata (show _ s.C)}<br/>
D: {cdata (show _ s.D)}<br/>
</body></html>
fun main () : transaction page = return <html><body>
<lform>
B: <textbox{#B}/>
<submit action={lookup}/>
</lform>
</body></html>
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