【1】cast函数
① 平均值取两位小数
SELECT address,COUNT(1),
CAST(AVG(avg_price) AS DECIMAL(10,2)) as number
from tb_sys_travel
group by address
ORDER BY COUNT(address) desc
LIMIT 0,10
微信扫一扫
SELECT address,COUNT(1),
CAST(AVG(avg_price) AS DECIMAL(10,2)) as number
from tb_sys_travel
group by address
ORDER BY COUNT(address) desc
LIMIT 0,10
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