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SET AUTOCOMMIT = 0
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START TRANSACTION
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DROP DATABASE IF EXISTS `base`
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CREATE DATABASE `base`
DEFAULT CHARACTER SET `latin1`
DEFAULT COLLATE `latin1_general_ci`
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DROP TABLE IF EXISTS `notes`
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create table `notes` (
`id` int NOT NULL AUTO_INCREMENT PRIMARY KEY,
`nom` char(10) NOT NULL,
`test` char(10) NOT NULL,
`note` int NOT NULL
) ENGINE=InnoDB
DEFAULT CHARSET=`latin1` COLLATE=`latin1_general_ci`
ROW_FORMAT=COMPRESSED
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insert into notes (`id`,`nom`,`test`,`note`) values
(1, 'paul', 'francais', 18),
(2, 'paul', 'math', 15),
(3, 'jean', 'francais', 12),
(4, 'jean', 'anglais', 13),
(5, 'paul', 'anglais', 12),
(6, 'marc', 'francais', 12)
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select * from notes
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+----+------+----------+------+
| id | nom | test | note |
+----+------+----------+------+
| 1 | paul | francais | 18 |
| 2 | paul | math | 15 |
| 3 | jean | francais | 12 |
| 4 | jean | anglais | 13 |
| 5 | paul | anglais | 12 |
| 6 | marc | francais | 12 |
+----+------+----------+------+
--------------
SELECT *
FROM notes
WHERE (test = 'francais' AND note >= 11)
or (test = 'anglais' AND note >= 12)
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+----+------+----------+------+
| id | nom | test | note |
+----+------+----------+------+
| 1 | paul | francais | 18 |
| 3 | jean | francais | 12 |
| 4 | jean | anglais | 13 |
| 5 | paul | anglais | 12 |
| 6 | marc | francais | 12 |
+----+------+----------+------+
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SELECT *
FROM notes as main
WHERE exists
(select 1 from notes as subq
where subq.nom = main.nom
and subq.test = 'francais'
and subq.note >= 11)
AND exists
(select 1 from notes as subq
where subq.nom = main.nom
and subq.test = 'anglais'
and subq.note >= 12)
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+----+------+----------+------+
| id | nom | test | note |
+----+------+----------+------+
| 1 | paul | francais | 18 |
| 2 | paul | math | 15 |
| 3 | jean | francais | 12 |
| 4 | jean | anglais | 13 |
| 5 | paul | anglais | 12 |
+----+------+----------+------+
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COMMIT
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SET AUTOCOMMIT = 1
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