SQL把日期转换为季度来作查询
Select Season = Case when month(日期) in (1,2,3) then '一季度'
when month(日期) in (4,5,6) then '二季度'
when month(日期) in (7,8,9) then '三季度'
when month(日期) in (10,11,12) then '四季度' end ,
count(*)
from tablename
group by Case when month(日期) in (1,2,3) then '一季度'
when month(日期) in (4,5,6) then '二季度'
when month(日期) in (7,8,9) then '三季度'
when month(日期) in (10,11,12) then '四季度' end
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