SELECT concat(year,lpad(month,2,0),lpad(day,2,0)) as mydate,week(concat(year,lpad(month,2,0),lpad(day,2,0)) ,3) as myweek FROM t_status WHERE concat(year,lpad(month,2,0),lpad(day,2,0)) >=20050606 GROUP BY myweek ORDER BY mydate DESC
当db中记录跨年时，使用week group by 应改成yearweek
SELECT concat(year,lpad(month,2,0),lpad(day,2,0)) as mydate,yearweek(concat(year,lpad(month,2,0),lpad(day,2,0)) ,3) as myweek FROM t_status WHERE concat(year,lpad(month,2,0),lpad(day,2,0)) >=20050606 GROUP BY myweek ORDER BY mydate DESC
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