我有收入浮动值作为字符串。执行简单查询后,例如:
SELECT
EXTRACT(date FROM time) date,
SUM(CAST(revenue AS FLOAT64)) number
FROM
`mytable`
GROUP BY date
ORDER BY date DESC
我懂了:
2019-03-11 3.2172407478999996E8
2019-03-10 2.3065347E7
等等。
问题是 - 如何将这些值转换为浮点数?我知道堆栈上已经发布了同类问题,但没有一个问题让我找到了合适的解决方案。
该值已经是浮点数,只需FORMAT
它:
SELECT FORMAT('%.2f', 3.2172407478999996E8)
-- 321724074.79
PS:如果收入是数字,则不转换为浮动,而是转换为十进制。
我想如果你转换为字符串,你将获得值:
CAST(SUM(revenue) AS string) as number
或者numeric
:
CAST(SUM(revenue) AS numeric) as number
怎么样INTEGER
铸造
SELECT
EXTRACT(date FROM time) date,
SUM(CAST(revenue AS INTEGER)) number
FROM
`mytable`
GROUP BY date
ORDER BY date DESC