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|
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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 IF NOT EXISTS `base`
DEFAULT CHARACTER SET `latin1`
DEFAULT COLLATE `latin1_general_ci`
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DROP TABLE IF EXISTS test
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CREATE TABLE test
( `id` integer unsigned not null auto_increment primary key,
`numero` integer unsigned not null,
`detection` varchar(255) not null,
INDEX `idx` (`detection`)
) ENGINE=InnoDB
DEFAULT CHARSET=`latin1` COLLATE=`latin1_general_ci`
ROW_FORMAT=COMPRESSED
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insert into `test` (`numero`,`detection`) values
(113620, 'localisateur'),
(113620, 'GNSS'),
(113620, 'GNSS')
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select * from test
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+----+--------+--------------+
| id | numero | detection |
+----+--------+--------------+
| 1 | 113620 | localisateur |
| 2 | 113620 | GNSS |
| 3 | 113620 | GNSS |
+----+--------+--------------+
--------------
select numero,
detection,
count(*) as nbre
from `test`
group by numero, detection
having nbre >= 2
order by numero, detection
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+--------+-----------+------+
| numero | detection | nbre |
+--------+-----------+------+
| 113620 | GNSS | 2 |
+--------+-----------+------+
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COMMIT
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SET AUTOCOMMIT = 0
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