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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 `representant`
--------------
--------------
CREATE TABLE `representant`
(
`norepr` integer NOT NULL,
PRIMARY KEY (`norepr`)
) ENGINE=InnoDB
DEFAULT CHARSET=`latin1` COLLATE=`latin1_general_ci`
ROW_FORMAT=COMPRESSED
--------------
--------------
DROP TRIGGER IF EXISTS `CheckValeur`
--------------
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CREATE TRIGGER `CheckValeur`
BEFORE INSERT ON `representant`
FOR EACH ROW BEGIN
DECLARE _msg VARCHAR(255);
IF new.norepr < 1 THEN
SET _msg = concat('Insertion impossible : ', cast(new.norepr as char));
SIGNAL SQLSTATE VALUE '07777' SET MESSAGE_TEXT = _msg, MYSQL_ERRNO = 7777;
END IF;
END
--------------
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INSERT INTO `representant` (`norepr`) VALUES (1)
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select * from representant
--------------
+--------+
| norepr |
+--------+
| 1 |
+--------+
--------------
INSERT INTO `representant` (`norepr`) VALUES (-2)
--------------
ERROR 7777 (07777) at line 55: Insertion impossible : -2
--------------
select * from representant
--------------
+--------+
| norepr |
+--------+
| 1 |
+--------+
--------------
INSERT INTO `representant` (`norepr`) VALUES (3)
--------------
--------------
select * from representant
--------------
+--------+
| norepr |
+--------+
| 1 |
| 3 |
+--------+
--------------
COMMIT
--------------
--------------
SET AUTOCOMMIT = 1
--------------
Appuyez sur une touche pour continuer... |
