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30 lines
1.3 KiB
SQL
30 lines
1.3 KiB
SQL
-- https://www.philipzucker.com/sql_graph_csp/
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set enable_analyzer = 1;
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WITH RECURSIVE digits AS (
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SELECT 0 AS digit
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UNION ALL
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SELECT digit + 1
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FROM digits
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WHERE digit < 9
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)
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SELECT s.digit AS S, e.digit AS E, n.digit AS N, d.digit AS D,
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m.digit AS M, o.digit AS O, r.digit AS R, y.digit AS Y
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FROM digits s, digits e, digits n, digits d, digits m, digits o, digits r, digits y
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WHERE s.digit <> e.digit AND s.digit <> n.digit AND s.digit <> d.digit AND s.digit <> m.digit AND
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s.digit <> o.digit AND s.digit <> r.digit AND s.digit <> y.digit AND
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e.digit <> n.digit AND e.digit <> d.digit AND e.digit <> m.digit AND
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e.digit <> o.digit AND e.digit <> r.digit AND e.digit <> y.digit AND
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n.digit <> d.digit AND n.digit <> m.digit AND n.digit <> o.digit AND
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n.digit <> r.digit AND n.digit <> y.digit AND
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d.digit <> m.digit AND d.digit <> o.digit AND d.digit <> r.digit AND
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d.digit <> y.digit AND
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m.digit <> o.digit AND m.digit <> r.digit AND m.digit <> y.digit AND
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o.digit <> r.digit AND o.digit <> y.digit AND
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r.digit <> y.digit AND
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s.digit <> 0 AND m.digit <> 0 AND
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(1000 * s.digit + 100 * e.digit + 10 * n.digit + d.digit) +
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(1000 * m.digit + 100 * o.digit + 10 * r.digit + e.digit) =
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(10000 * m.digit + 1000 * o.digit + 100 * n.digit + 10 * e.digit + y.digit);
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