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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,
`mot` varchar(255) not null
) ENGINE=InnoDB
DEFAULT CHARSET=`latin1` COLLATE=`latin1_general_ci`
ROW_FORMAT=COMPRESSED
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insert into `test` (`mot`) values
('chien'), ('chat')
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select * from `test`
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+----+-------+
| id | mot |
+----+-------+
| 1 | chien |
| 2 | chat |
+----+-------+
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insert into `test` (`mot`)
select 'lait' as `mot`
from dual
where exists (select 1 from `test` where `mot` = 'chat')
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select * from `test`
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+----+-------+
| id | mot |
+----+-------+
| 1 | chien |
| 2 | chat |
| 3 | lait |
+----+-------+
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insert into `test` (`mot`)
select 'fromage' as `mot`
from dual
where exists (select 1 from `test` where `mot` = 'souris')
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select * from `test`
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+----+-------+
| id | mot |
+----+-------+
| 1 | chien |
| 2 | chat |
| 3 | lait |
+----+-------+
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COMMIT
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SET AUTOCOMMIT = 1
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