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我想從reg_data3選擇常規數據,並得到平均每月值,並插入到平均表作爲更新,但它不能很好地工作。選擇常規數據,並插入到平均每月值更新,但錯誤
SELECT
year(str_to_date(date, '%Y-%m-%d'))as year,
month(str_to_date(date, '%Y-%m-%d')) as month,
round(avg(evep),2),
round(Avg(sunshine_hrs),2),
round(sum(rainfall),2),
round(AVG(max_temp),2),
round(avg(min_temp),2)
FROM
reg_data3
GROUP BY
year(str_to_date(date, '%Y-%m-%d')),
month(str_to_date(date, '%Y-%m-%d'))
ORDER BY 1 Desc
UPDATE
avg_month_val
set
year='year' ,
month='month',
evep='evep' ,
sunshine_hrs='sun_shine_hrs',
rainfall='rainfall',
max_temp='max_temp',
min_temp='min_temp';
我試圖格式化,看看我能讀懂它。我失敗了。你能更好地格式化嗎? –
我也試過,並決定保存它。請看看你的意思。 –
@PreetSangha現在好吧 – SasinduRHN