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1 筛选 public static void Filtering() { var racers = from r in Formula1.GetChampions() where r.Wins > 15 && (r.Country == "Brazil" || r.Country == "Aust 阅读全文
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public List<GoodsConsumerRankModel> GetGoodsConsumerRankingsModelList(DateTime start, DateTime end) { List<GoodsConsumerRankModel> list = new List<Goo 阅读全文
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1 select ycsp.v_dd_no,dd.v_pai_no,ycsp.v_czzl_no,ycsp.v_czzl_name, 2 case when ycsp.i_goods_type=0 then '普通品项' 3 when ycsp.i_goods_type=1 then '套菜' 4 阅读全文
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2018.10.16:周二 --进阶 --别名 SELECT StuName,StuNum+','+StuClass+','+StuGender+','+StuPhone AS 信息 FROM Student; --删除主键约束 ALTER TABLE Student DROP CONSTRAINT 阅读全文