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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 `prix`
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CREATE TABLE `prix`
( `id` integer unsigned not null auto_increment primary key,
`prix` decimal(15,2) not null,
`datedeb` date not null,
`datefin` date not null
) ENGINE=InnoDB
DEFAULT CHARSET=`latin1` COLLATE=`latin1_general_ci`
ROW_FORMAT=COMPRESSED
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insert into `prix` (`prix`,`datedeb`,`datefin`) values
(350.00, '2016-12-01', '2016-12-10'),
(250.00, '2016-12-04', '2016-12-14'),
(150.00, '2016-12-09', '2016-12-21')
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select * from prix
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+----+--------+------------+------------+
| id | prix | datedeb | datefin |
+----+--------+------------+------------+
| 1 | 350.00 | 2016-12-01 | 2016-12-10 |
| 2 | 250.00 | 2016-12-04 | 2016-12-14 |
| 3 | 150.00 | 2016-12-09 | 2016-12-21 |
+----+--------+------------+------------+
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DROP TABLE IF EXISTS `travail`
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CREATE TABLE `travail`
( `datejour` date not null,
`prix` decimal(15,2) not null
) ENGINE=InnoDB
DEFAULT CHARSET=`latin1` COLLATE=`latin1_general_ci`
ROW_FORMAT=COMPRESSED
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drop procedure if exists `trait`
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create procedure `trait`
(
IN _datedeb date,
IN _datefin date
)
DETERMINISTIC
NO SQL
BEGIN
DECLARE _date DATE DEFAULT NULL;
DECLARE _prix DECIMAL(15,2) DEFAULT 0;
DECLARE _fin INTEGER DEFAULT 1;
DECLARE _tab CURSOR FOR SELECT prix FROM prix where datedeb <= _date and _date <= datefin;
DECLARE CONTINUE HANDLER FOR NOT FOUND SET _fin = 0;
SET _date = _datedeb;
WHILE (_date <= _datefin)
DO
SET _fin = 1;
OPEN _tab;
FETCH _tab INTO _prix;
WHILE (_fin)
DO
INSERT INTO travail (`datejour`,`prix`) values (_date, _prix);
FETCH _tab INTO _prix;
END WHILE;
CLOSE _tab;
SET _date = date_add(_date, interval 1 day);
END WHILE;
END
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call trait('2016-12-02', '2016-12-11')
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select * from travail order by prix, datejour
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+------------+--------+
| datejour | prix |
+------------+--------+
| 2016-12-09 | 150.00 |
| 2016-12-10 | 150.00 |
| 2016-12-11 | 150.00 |
| 2016-12-04 | 250.00 |
| 2016-12-05 | 250.00 |
| 2016-12-06 | 250.00 |
| 2016-12-07 | 250.00 |
| 2016-12-08 | 250.00 |
| 2016-12-09 | 250.00 |
| 2016-12-10 | 250.00 |
| 2016-12-11 | 250.00 |
| 2016-12-02 | 350.00 |
| 2016-12-03 | 350.00 |
| 2016-12-04 | 350.00 |
| 2016-12-05 | 350.00 |
| 2016-12-06 | 350.00 |
| 2016-12-07 | 350.00 |
| 2016-12-08 | 350.00 |
| 2016-12-09 | 350.00 |
| 2016-12-10 | 350.00 |
+------------+--------+
--------------
select datejour,
max(prix1) as prix1,
max(prix2) as prix2,
max(prix3) as prix3
from (
select datejour,
case prix when 350.00 then prix else null end as prix1,
case prix when 250.00 then prix else null end as prix2,
case prix when 150.00 then prix else null end as prix3
from travail) as x
group by datejour
--------------
+------------+--------+--------+--------+
| datejour | prix1 | prix2 | prix3 |
+------------+--------+--------+--------+
| 2016-12-02 | 350.00 | NULL | NULL |
| 2016-12-03 | 350.00 | NULL | NULL |
| 2016-12-04 | 350.00 | 250.00 | NULL |
| 2016-12-05 | 350.00 | 250.00 | NULL |
| 2016-12-06 | 350.00 | 250.00 | NULL |
| 2016-12-07 | 350.00 | 250.00 | NULL |
| 2016-12-08 | 350.00 | 250.00 | NULL |
| 2016-12-09 | 350.00 | 250.00 | 150.00 |
| 2016-12-10 | 350.00 | 250.00 | 150.00 |
| 2016-12-11 | NULL | 250.00 | 150.00 |
+------------+--------+--------+--------+
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select datejour, group_concat(prix separator ';') as prix
from travail
group by datejour
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+------------+----------------------+
| datejour | prix |
+------------+----------------------+
| 2016-12-02 | 350.00 |
| 2016-12-03 | 350.00 |
| 2016-12-04 | 350.00;250.00 |
| 2016-12-05 | 250.00;350.00 |
| 2016-12-06 | 350.00;250.00 |
| 2016-12-07 | 350.00;250.00 |
| 2016-12-08 | 250.00;350.00 |
| 2016-12-09 | 350.00;250.00;150.00 |
| 2016-12-10 | 350.00;250.00;150.00 |
| 2016-12-11 | 250.00;150.00 |
+------------+----------------------+
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COMMIT
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SET AUTOCOMMIT = 1
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