随笔分类 - EF
摘要：ef core group by 去生重复，保留指定条件行 //当前活动信息 var actQry = from ap in _activityProductRep.DetachedEntities join a in _activityRep.DetachedEntities on ap.Acti
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摘要：public CustomerMap() { this.ToTable("Customer"); this.HasKey(c => c.Id); this.Property(u => u.Username).HasMaxLength(1000); this.Property(u => u.Email
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