1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120
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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 `tabone`
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CREATE TABLE `tabone`
( `id` INTEGER UNSIGNED NOT NULL auto_increment PRIMARY KEY,
`lib` VARCHAR(255) NOT NULL
) ENGINE=InnoDB
DEFAULT CHARSET=`latin1` COLLATE=`latin1_general_ci`
ROW_FORMAT=COMPRESSED
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insert into `tabone` (`lib`) values ('un'),('zwei'),('trois')
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select * from `tabone`
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+----+-------+
| id | lib |
+----+-------+
| 1 | un |
| 2 | zwei |
| 3 | trois |
+----+-------+
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DROP TABLE IF EXISTS `tabtwo`
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CREATE TABLE `tabtwo`
( `id` INTEGER UNSIGNED NOT NULL auto_increment PRIMARY KEY,
`mess` CHAR(255) NOT NULL
) ENGINE=InnoDB
DEFAULT CHARSET=`latin1` COLLATE=`latin1_general_ci`
ROW_FORMAT=COMPRESSED
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insert into `tabtwo` (`id`,`mess`) values (2, 'due')
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select * from `tabtwo`
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+----+------+
| id | mess |
+----+------+
| 2 | due |
+----+------+
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DROP TRIGGER IF EXISTS `maj`
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CREATE TRIGGER `maj`
AFTER update ON `tabtwo`
FOR EACH ROW
BEGIN
update `tabone`
set lib = new.mess
where id = new.id;
END
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update `tabtwo` set mess = 'deux' where id = 2
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select * from `tabone`
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+----+-------+
| id | lib |
+----+-------+
| 1 | un |
| 2 | deux |
| 3 | trois |
+----+-------+
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select * from `tabtwo`
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+----+------+
| id | mess |
+----+------+
| 2 | deux |
+----+------+
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COMMIT
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SET AUTOCOMMIT = 1
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