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
| --------------
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 `test`
--------------
--------------
CREATE TABLE `test`
(
`clef` int unsigned NOT NULL primary key,
`val` char(25) NOT NULL DEFAULT ' '
) ENGINE=InnoDB
DEFAULT CHARSET=`latin1` COLLATE=`latin1_general_ci`
ROW_FORMAT=COMPRESSED
--------------
--------------
INSERT INTO `test` (`clef`, `val`) VALUES
(0, 'description générale'),(15, 'description client 15')
--------------
--------------
select * from test
--------------
+------+-----------------------+
| clef | val |
+------+-----------------------+
| 0 | description générale |
| 15 | description client 15 |
+------+-----------------------+
--------------
select * from test where clef in (0, 15) order by clef desc limit 1
--------------
+------+-----------------------+
| clef | val |
+------+-----------------------+
| 15 | description client 15 |
+------+-----------------------+
--------------
select * from test where clef in (0, 11) order by clef desc limit 1
--------------
+------+----------------------+
| clef | val |
+------+----------------------+
| 0 | description générale |
+------+----------------------+
--------------
DROP TABLE IF EXISTS `test`
--------------
--------------
CREATE TABLE `test`
(
`id` integer unsigned auto_increment NOT NULL primary key,
`code` char(02) NOT NULL,
`libelle` varchar(255) NOT NULL
) ENGINE=InnoDB
DEFAULT CHARSET=`latin1` COLLATE=`latin1_general_ci`
ROW_FORMAT=COMPRESSED
--------------
--------------
INSERT INTO `test` (`code`,`libelle`) VALUES
('de','allemand'),('en','anglais'),('fr','français'),('it','italien')
--------------
--------------
select * from test where code in ('fr', 'en') order by field(code,'en','fr') limit 1
--------------
+----+------+---------+
| id | code | libelle |
+----+------+---------+
| 2 | en | anglais |
+----+------+---------+
--------------
select * from test where code in ('fr', 'es') order by field(code,'es','fr') limit 1
--------------
+----+------+----------+
| id | code | libelle |
+----+------+----------+
| 3 | fr | français |
+----+------+----------+
--------------
COMMIT
--------------
--------------
SET AUTOCOMMIT = 1
--------------
Appuyez sur une touche pour continuer... |
Partager