Hive中获取今天、上月第一天、上月最后一天、上周第一天周一、上周周五、上周最后一天周日日期

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SELECT

SUBSTR(FROM_UNIXTIME(UNIX_TIMESTAMP()),1,10) ,--out 2021-09-08  执行代码日期,当日日期

concat(SUBSTR(DATE_SUB(FROM_UNIXTIME(UNIX_TIMESTAMP()),DAY(FROM_UNIXTIME(UNIX_TIMESTAMP()))),1,7) ,'-01'),  --out 2021-08-01  上月月初

DATE_SUB(FROM_UNIXTIME(UNIX_TIMESTAMP()),DAY(FROM_UNIXTIME(UNIX_TIMESTAMP()))),  --out 2021-08-31  上月月未 

date_sub(SUBSTR(FROM_UNIXTIME(UNIX_TIMESTAMP()),1,10),pmod(datediff(SUBSTR(FROM_UNIXTIME(UNIX_TIMESTAMP()),1,10),'1900-01-08'),7)+7), --out 2021-08-30  上周周一

date_sub(SUBSTR(FROM_UNIXTIME(UNIX_TIMESTAMP()),1,10),pmod(datediff(SUBSTR(FROM_UNIXTIME(UNIX_TIMESTAMP()),1,10),'1900-01-08'),7)+1),  --out 2021-09-05  上周周日

date_sub(SUBSTR(FROM_UNIXTIME(UNIX_TIMESTAMP()),1,10),pmod(datediff(SUBSTR(FROM_UNIXTIME(UNIX_TIMESTAMP()),1,10),'1900-01-08'),7)+3) --out 2021-09-03  上周周五



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