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# 将时间换成列名就行；当前是秒级时间戳，如果是毫秒的 / 1000即可

# SELECT FROM_UNIXTIME(1602668106666.777888999 / 1000,'%Y-%m-%d') AS a;

# SELECT FROM_UNIXTIME(列名 / 1000,'%Y-%m-%d') AS a;

SELECT FROM_UNIXTIME(1602668106.666777888999,'%Y-%m-%d') AS a;

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# 将时间换成列名就行；当前是秒级时间戳，如果是毫秒的 / 1000即可

SELECT FROM_UNIXTIME(1602668106.666777888999,'%Y-%m-%d %H:%i:%S') AS a;

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SELECT FROM_UNIXTIME(1602668106.666777888999,'%Y-%m-%d %H:%i:%S.%f') AS a;

# 或

SELECT LEFT(FROM_UNIXTIME(1602668106.666777888999,'%Y-%m-%d %h:%i:%s.%f'),23) AS a;