Mercurial > urweb
annotate tests/group_by.lac @ 227:524e10c91478
GROUP BY and HAVING
| author | Adam Chlipala <adamc@hcoop.net> |
|---|---|
| date | Thu, 21 Aug 2008 14:09:08 -0400 |
| parents | b0041cc7e5f7 |
| children | 19e5791923d0 |
| rev | line source |
|---|---|
| adamc@226 | 1 table t1 : {A : int, B : string, C : float} |
| adamc@226 | 2 table t2 : {A : float, D : int} |
| adamc@226 | 3 |
| adamc@226 | 4 val q1 = (SELECT * FROM t1 GROUP BY t1.B) |
| adamc@226 | 5 val q2 = (SELECT * FROM t1, t2 GROUP BY t1.B, t2.D, t1.A) |
| adamc@227 | 6 |
| adamc@227 | 7 val q3 = (SELECT * FROM t1 WHERE t1.A = 0 GROUP BY t1.B) |
| adamc@227 | 8 val q4 = (SELECT * FROM t1 WHERE t1.A = 0 GROUP BY t1.C HAVING t1.C < 0.2) |
| adamc@227 | 9 |
| adamc@227 | 10 val q5 = (SELECT t1.A, t2.D FROM t1, t2 GROUP BY t2.D, t1.A) |
| adamc@227 | 11 val q6 = (SELECT t1.A, t2.D FROM t1, t2 WHERE t1.C = 0.0 GROUP BY t2.D, t1.A HAVING t1.A = 0 AND t2.D = 17) |