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| --------------
set session time_zone = '+00:00'
--------------
--------------
SELECT @@time_zone
--------------
+-------------+
| @@time_zone |
+-------------+
| +00:00 |
+-------------+
--------------
DROP TABLE IF EXISTS `test`
--------------
--------------
CREATE TABLE `test`
( `id` integer unsigned NOT NULL auto_increment Primary Key,
`nbre1` integer unsigned NOT NULL,
`nbre2` time NOT NULL
) ENGINE=InnoDB
DEFAULT CHARSET=`latin1` COLLATE=`latin1_general_ci`
ROW_FORMAT=COMPRESSED
--------------
--------------
insert into `test` (`nbre1`,`nbre2`) values
(3600,'01:00:00'),(3600,'01:00:00'),(3600,'01:00:00')
--------------
--------------
select * from `test`
--------------
+----+-------+----------+
| id | nbre1 | nbre2 |
+----+-------+----------+
| 1 | 3600 | 01:00:00 |
| 2 | 3600 | 01:00:00 |
| 3 | 3600 | 01:00:00 |
+----+-------+----------+
--------------
select SEC_TO_TIME(SUM(nbre1)) AS total1,
SEC_TO_TIME(SUM(TIME_TO_SEC(nbre2))) AS total2
from `test`
--------------
+----------+----------+
| total1 | total2 |
+----------+----------+
| 03:00:00 | 03:00:00 |
+----------+----------+
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