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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 `test`
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CREATE TABLE `test`
( `id` integer unsigned not null auto_increment primary key,
`code` varchar(255) not null,
`date_enreg` date not null
) ENGINE=InnoDB
DEFAULT CHARSET=`latin1` COLLATE=`latin1_general_ci`
ROW_FORMAT=COMPRESSED
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insert into `test` (`code`,`date_enreg`) values
('un', '2017-03-20'),
('deux', '2017-03-19'),
('trois', '2017-03-18'),
('deux', '2017-03-17'),
('un', '2017-03-16'),
('trois', '2017-03-15'),
('deux', '2017-03-14'),
('un', '2017-03-13'),
('deux', '2017-03-12')
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select * from `test` order by id
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+----+-------+------------+
| id | code | date_enreg |
+----+-------+------------+
| 1 | un | 2017-03-20 |
| 2 | deux | 2017-03-19 |
| 3 | trois | 2017-03-18 |
| 4 | deux | 2017-03-17 |
| 5 | un | 2017-03-16 |
| 6 | trois | 2017-03-15 |
| 7 | deux | 2017-03-14 |
| 8 | un | 2017-03-13 |
| 9 | deux | 2017-03-12 |
+----+-------+------------+
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set @p1 = 'un'
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set @p2 = 2
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PREPARE stmt FROM 'delete from `test` where code=? order by date_enreg LIMIT ?'
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EXECUTE stmt USING @p1,@p2
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DEALLOCATE PREPARE stmt
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select * from `test`
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+----+-------+------------+
| id | code | date_enreg |
+----+-------+------------+
| 1 | un | 2017-03-20 |
| 2 | deux | 2017-03-19 |
| 3 | trois | 2017-03-18 |
| 4 | deux | 2017-03-17 |
| 6 | trois | 2017-03-15 |
| 7 | deux | 2017-03-14 |
| 9 | deux | 2017-03-12 |
+----+-------+------------+
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COMMIT
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SET AUTOCOMMIT = 1
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