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ImpalaSQL日期常用函数 – 取当天 select cast(now() as timestamp) select from_unixtime(unix_timestamp(),‘yyyyMMdd’) a – 取当月 select from_unixtime(unix_timestamp(),‘yyyyMM’) select from_unixtime(unix_timestamp(),‘yyyy-MM’) select substr(cast(now() as string) , 1,7) – 取当