摘要:
写法一:(泛型委托)Func albumFunC = new Func(GetCacheObject);//泛型委托 object result =albumFunC("参数值");写法二:(泛型委托+超时机制) Func albumFunC = new Func(GetCacheObject);/... 阅读全文
摘要:
--取每个学科的前3条数据select * from ( select subject,name,score,ROW_NUMBER() over(PARTITION by subject order by @@identity) as num from #score) T where T.num <... 阅读全文