mysql - 过滤掉MySQL中使用GROUP BY得到的结果

Question

我有这个问题:

SELECT name, SUM(p.column1+p.column2+p.colum3) AS PICKS
FROM table AS p
WHERE date = '2014-09-10'
GROUP BY name

此查询非常有效。我想过滤掉 p.column1+p.column2+p.column3 = 0

的结果

我试过:

SELECT name, SUM(p.column1+p.column2+p.colum3) AS PICKS
FROM table AS p
WHERE PICKS > 0
AND date = '2014-09-10'
GROUP BY name

但它一直告诉我 GROUP BY 的使用不正确。

Answer 1

使用having子句过滤聚合函数的结果

SELECT name, SUM(p.column1+p.column2+p.colum3) AS PICKS
FROM table AS p
WHERE date = '2014-09-10'
GROUP BY name
HAVING PICKS > 0

或者您可以使用另一种方式使用子选择

SELECT * FROM
(SELECT name, SUM(p.column1+p.column2+p.colum3) AS PICKS
FROM table AS p
WHERE date = '2014-09-10'
GROUP BY name) t
WHERE PICKS > 0