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with m as (
select case
when substr(CJLB, 1, 2) in ('02','08','09','10') then '治安警情'
when substr(CJLB, 1, 2) in ('03') then '交通警情'
else '其他'
end LBMC,
CJLB
from t
)
select LBMC, count(*) from m group by LBMC