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Mysql order by sum 2 column

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In Mysql SQL language and in some ORM or DM like active record in yii, laravel
...

http://www.yiiframework.com/wiki/679/filter-sort-by-summary-data-in-gridview-yii-2-0/
http://www.yiiframework.com/forum/index.php/topic/12799-has-many-relation-with-generating-sum/

http://stackoverflow.com/questions/3059138/mysql-order-by-sum-of-columns

update project set regist = regist + FLOOR(RAND() * 401) + 100 where regist = 1458207904;
SET autocommit=0; to the beginning of your import file and COMMIT;

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