delete from aop_app_ipmlinfo a where a.impl_id not in
(
select max(t.impl_id) c from aop_app_ipmlinfo t group by t.app_id,t.ability_id
)
ps: max(t.impl_id) 也能替換爲 min(t.impl_id)
delete from aop_app_ipmlinfo a where a.impl_id not in
(
select max(t.impl_id) c from aop_app_ipmlinfo t group by t.app_id,t.ability_id
)
ps: max(t.impl_id) 也能替換爲 min(t.impl_id)
2015年1月11號來到王道集訓營,到現在已經近半個月了,這段時間主要複習了C的主要內容,每天都在敲代碼,碼代碼的速度提高很快,筆記都