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| --------------
SET AUTOCOMMIT = 0
--------------
--------------
START TRANSACTION
--------------
--------------
DROP DATABASE IF EXISTS `base`
--------------
--------------
CREATE DATABASE `base`
DEFAULT CHARACTER SET `latin1`
DEFAULT COLLATE `latin1_general_ci`
--------------
--------------
DROP TABLE IF EXISTS `etudiant`
--------------
--------------
CREATE TABLE `etudiant`
(
`id` integer unsigned NOT NULL AUTO_INCREMENT primary key,
`email` varchar(255) NOT NULL
) ENGINE=InnoDB
DEFAULT CHARSET=`latin1` COLLATE=`latin1_general_ci`
ROW_FORMAT=COMPRESSED
--------------
--------------
INSERT INTO `etudiant` (`email`) VALUES
('alpha@site.com'),
('beta@site.com'),
('gamma@site.com'),
('delta@site.com'),
('omicron@site.com')
--------------
--------------
select * from etudiant
--------------
+----+------------------+
| id | email |
+----+------------------+
| 1 | alpha@site.com |
| 2 | beta@site.com |
| 3 | gamma@site.com |
| 4 | delta@site.com |
| 5 | omicron@site.com |
+----+------------------+
--------------
DROP TABLE IF EXISTS `enseignant`
--------------
--------------
CREATE TABLE `enseignant`
(
`id` integer unsigned NOT NULL AUTO_INCREMENT primary key,
`email` varchar(255) NOT NULL
) ENGINE=InnoDB
DEFAULT CHARSET=`latin1` COLLATE=`latin1_general_ci`
ROW_FORMAT=COMPRESSED
--------------
--------------
INSERT INTO `enseignant` (`email`) VALUES
('omicron@site.com'),
('phi@site.com'),
('khi@site.com'),
('psi@site.com'),
('omega@site.com')
--------------
--------------
select * from enseignant
--------------
+----+------------------+
| id | email |
+----+------------------+
| 1 | omicron@site.com |
| 2 | phi@site.com |
| 3 | khi@site.com |
| 4 | psi@site.com |
| 5 | omega@site.com |
+----+------------------+
--------------
select 'eleve' as type, id, email
from etudiant
where email = 'iota@site.com'
union
select 'prof' as type, id, email
from enseignant
where email = 'iota@site.com'
--------------
--------------
select 'eleve' as type, id, email
from etudiant
where email = 'delta@site.com'
union
select 'prof' as type, id, email
from enseignant
where email = 'delta@site.com'
--------------
+-------+----+----------------+
| type | id | email |
+-------+----+----------------+
| eleve | 4 | delta@site.com |
+-------+----+----------------+
--------------
select 'eleve' as type, id, email
from etudiant
where email = 'phi@site.com'
union
select 'prof' as type, id, email
from enseignant
where email = 'phi@site.com'
--------------
+------+----+--------------+
| type | id | email |
+------+----+--------------+
| prof | 2 | phi@site.com |
+------+----+--------------+
--------------
select 'eleve' as type, id, email
from etudiant
where email = 'omicron@site.com'
union
select 'prof' as type, id, email
from enseignant
where email = 'omicron@site.com'
--------------
+-------+----+------------------+
| type | id | email |
+-------+----+------------------+
| eleve | 5 | omicron@site.com |
| prof | 1 | omicron@site.com |
+-------+----+------------------+
--------------
COMMIT
--------------
--------------
SET AUTOCOMMIT = 1
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