Oracle分组后计数

select

to_char(t.djrq,'yyyy') Year,

to_char(t.djrq,'mm') Month,

to_char(t.djrq,'dd') Day,

substr(t.jg,1,6) AreaCode,

sum(case when t.stable in ('jh','jhbl') then 1 else 0 end) TotalMarriageCount,

sum(case when t.stable in ('lh','lhbl') then 1 else 0 end) TotalDivorceCount

from psn_mz_hunyin t

group by

to_char(t.djrq,'yyyy'),

to_char(t.djrq,'mm'),

to_char(t.djrq,'dd'),

substr(t.jg,1,6)