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/* First query */
SELECT YEAR, SUM( amount ) AS total
FROM accounts
WHERE ((MONTH >= '10' ||
MONTH <= '12' && YEAR = '2015') &&
(MONTH >= '1' ||
MONTH <= '3' && YEAR = '2016' ))
GROUP BY YEAR
/* Second query */
SELECT YEAR, SUM( amount ) AS total
FROM accounts
WHERE ((MONTH >= '1' ||
MONTH <= '3' && YEAR = '2015') &&
(MONTH >= '5' ||
MONTH <= '10' && YEAR = '2015'))
GROUP BY YEAR
第一个查询根据年份返回两行。但是第二个查询只返回一行。
我知道我是按年份分组完成的,但我想要满足我的两个条件匹配的两行。
还有什么建议吗?
这是输出。