СУММА MYSQL GROUP BY

Question

СУММА MYSQL GROUP BY

Решение с Java 8

ClassB b = new ClassB();    
ScheduledExecutorService executor = Executors.newScheduledThreadPool(1);
Runnable task = () -> {
    b.funb();
};
executor.scheduleWithFixedDelay(task, 0, 10, TimeUnit.MINUTES);

11

sql mysql group-by sum

задан OMG Ponies 21 October 2009 в 04:22

1 ответ

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sql mysql group-by sum

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score 29 · Accepted Answer

GROUP BY должна предшествовать ORDER BY:

  SELECT SUM(g.points) 
    FROM GRADES g
   WHERE g.date < 'thedate' 
GROUP BY g.assignmentid
ORDER BY g.date DESC