Mercurial > urweb
annotate tests/relops.lac @ 232:a338da9d82f3
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author | Adam Chlipala <adamc@hcoop.net> |
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date | Thu, 21 Aug 2008 16:03:45 -0400 |
parents | 016d71e878c1 |
children |
rev | line source |
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adamc@229 | 1 table t1 : {A : int, B : string, C : float} |
adamc@229 | 2 table t2 : {A : float, D : int} |
adamc@229 | 3 |
adamc@229 | 4 val q1 = (SELECT * FROM t1 |
adamc@229 | 5 UNION SELECT * FROM t1) |
adamc@229 | 6 val q2 = (SELECT t1.A, t1.B FROM t1 WHERE t1.A = 0 |
adamc@229 | 7 INTERSECT SELECT t1.B, t1.A FROM t1 WHERE t1.B = t1.B) |
adamc@229 | 8 val q3 = (SELECT t1.A, t1.B, t1.C FROM t1 WHERE t1.A = 0 |
adamc@229 | 9 INTERSECT SELECT * FROM t1 WHERE t1.B = 'Hello world!' |
adamc@229 | 10 EXCEPT SELECT * FROM t1 WHERE t1.A < t1.A) |