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| --------------
SET AUTOCOMMIT = 0
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--------------
START TRANSACTION
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--------------
SET collation_connection = latin1_general_ci
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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 `equipement`
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CREATE TABLE `equipement`
( `id_equipement` integer unsigned not null auto_increment primary key,
`nom_equipement` varchar(255) not null
) ENGINE=InnoDB
DEFAULT CHARSET=`latin1` COLLATE=`latin1_general_ci`
ROW_FORMAT=COMPRESSED
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insert into `equipement` (`nom_equipement`) values
('dodo'),('didi'),('dada')
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select * from equipement
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+---------------+----------------+
| id_equipement | nom_equipement |
+---------------+----------------+
| 1 | dodo |
| 2 | didi |
| 3 | dada |
+---------------+----------------+
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DROP TABLE IF EXISTS `intervention`
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CREATE TABLE `intervention`
( `id_intervention` integer unsigned not null auto_increment primary key,
`id_equipement` integer unsigned not null,
CONSTRAINT `FK_EQUIPEMENT` FOREIGN KEY (`id_equipement`) REFERENCES `equipement` (`id_equipement`) ON DELETE CASCADE ON UPDATE CASCADE
) ENGINE=InnoDB
DEFAULT CHARSET=`latin1` COLLATE=`latin1_general_ci`
ROW_FORMAT=COMPRESSED
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insert into `intervention` (`id_equipement`) values
(1),(2),(3)
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select * from intervention
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+-----------------+---------------+
| id_intervention | id_equipement |
+-----------------+---------------+
| 1 | 1 |
| 2 | 2 |
| 3 | 3 |
+-----------------+---------------+
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DROP TABLE IF EXISTS `rapport`
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CREATE TABLE `rapport`
( `id_rapport` integer unsigned not null auto_increment primary key,
`id_intervention` integer unsigned not null,
`date_rapport` date not null,
`duree_rapport` integer unsigned not null,
CONSTRAINT `FK_INTERVENTION` FOREIGN KEY (`id_intervention`) REFERENCES `intervention` (`id_intervention`) ON DELETE CASCADE ON UPDATE CASCADE
) ENGINE=InnoDB
DEFAULT CHARSET=`latin1` COLLATE=`latin1_general_ci`
ROW_FORMAT=COMPRESSED
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insert into `rapport` (`id_rapport`,`id_intervention`,`date_rapport`,`duree_rapport`) values
( 1, 1, '2017-01-18', 23),
( 2, 1, '2017-02-14', 17),
( 3, 2, '2017-02-18', 12),
( 6, 2, '2015-04-01', 18),
( 7, 2, '2017-01-02', 01),
(32, 2, '2017-01-18', 30),
(16, 3, '2017-03-12', 23)
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select * from rapport
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+------------+-----------------+--------------+---------------+
| id_rapport | id_intervention | date_rapport | duree_rapport |
+------------+-----------------+--------------+---------------+
| 1 | 1 | 2017-01-18 | 23 |
| 2 | 1 | 2017-02-14 | 17 |
| 3 | 2 | 2017-02-18 | 12 |
| 6 | 2 | 2015-04-01 | 18 |
| 7 | 2 | 2017-01-02 | 1 |
| 16 | 3 | 2017-03-12 | 23 |
| 32 | 2 | 2017-01-18 | 30 |
+------------+-----------------+--------------+---------------+
--------------
select e.id_equipement,
e.nom_equipement,
r.id_rapport,
r.id_intervention,
year(r.date_rapport) as annee,
r.duree_rapport
from rapport as r
inner join intervention as i
on i.id_intervention = r.id_intervention
inner join equipement as e
on e.id_equipement = i.id_equipement
--------------
+---------------+----------------+------------+-----------------+-------+---------------+
| id_equipement | nom_equipement | id_rapport | id_intervention | annee | duree_rapport |
+---------------+----------------+------------+-----------------+-------+---------------+
| 1 | dodo | 1 | 1 | 2017 | 23 |
| 1 | dodo | 2 | 1 | 2017 | 17 |
| 2 | didi | 3 | 2 | 2017 | 12 |
| 2 | didi | 6 | 2 | 2015 | 18 |
| 2 | didi | 7 | 2 | 2017 | 1 |
| 2 | didi | 32 | 2 | 2017 | 30 |
| 3 | dada | 16 | 3 | 2017 | 23 |
+---------------+----------------+------------+-----------------+-------+---------------+
--------------
select nom, temps, moyenne, @cum:=@cum+moyenne as cumul, annee
from ( select t1.id_equipement as rang,
t1.nom_equipement as nom,
cast( sum(t1.duree_rapport) as decimal(15,0)) as temps,
cast((sum(t1.duree_rapport) / (select sum(duree_rapport) from rapport)) as decimal(15,6)) as moyenne,
max(t1.annee) as annee
from ( select e.id_equipement,
e.nom_equipement,
year(r.date_rapport) as annee,
r.duree_rapport
from rapport as r
inner join intervention as i
on i.id_intervention = r.id_intervention
inner join equipement as e
on e.id_equipement = i.id_equipement
) as t1, (select @cum:=0) as x
group by t1.id_equipement
) as x
order by rang
--------------
+------+-------+----------+----------+-------+
| nom | temps | moyenne | cumul | annee |
+------+-------+----------+----------+-------+
| dodo | 40 | 0.322581 | 0.322581 | 2017 |
| didi | 61 | 0.491935 | 0.814516 | 2017 |
| dada | 23 | 0.185484 | 1 | 2017 |
+------+-------+----------+----------+-------+
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COMMIT
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SET AUTOCOMMIT = 1
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