linq group by 求和实例

        ///

        /// 施工日志汇总表
        ///

        ///
        ///
        [HttpPost]
        [Route("BuildLog/Summary")]
        public O34007 QueryBuildLogList(I34007 ajson)
        {
            O34007 fResult = new O34007();
            var fmode = db.PRJ_BuildLog.FirstOrDefault(p => p.PlanID == ajson.PlanID);
            if (fmode == null)
            {
                fResult.Msg = "找不到对应的记录";
                return fResult;
            }
            var q = (from p in db.PRJ_BuildLogInfo.Where(p => p.BuildLogID == fmode.BuildLogID)
                    group p by p.TeamName into g
                    select new
                    {
                        TeamName=g.Key,
                        TotalsPeopleNum = g.Sum(p => p.PeopleNum),
                        TotalsDay = g.Count(),
                        TotalsCraneMoney = g.Sum(p => p.CraneMoney)
                    }).ToList();
            fResult.HeadRows = q;
            fResult.Success = 1;
            return fResult;
        }

 

sql创建视图语句

SELECT   ISNULL(NEWID(), N'5757E7EF-2F19-4408-B413-8F1B33B9895F') AS id, dbo.PRJ_BuildLogInfo.TeamName, 
                SUM(dbo.PRJ_BuildLogInfo.PeopleNum) AS TotalsPeopleNum, SUM(dbo.PRJ_BuildLogInfo.CraneMoney) 
                AS TotalsCraneMoney, dbo.PRJ_BuildLog.PlanName, dbo.PRJ_BuildLog.PlanID, COUNT(*) AS TotalsDay, 
                dbo.PRJ_BuildLog.BuildLogName, dbo.PRJ_BuildLog.CreateUser, dbo.PRJ_BuildLog.CreateTime, 
                dbo.PRJ_BuildLog.AuditUserName, dbo.PRJ_BuildLog.AuditTime, dbo.PRJ_BuildLog.BuildLogID
FROM      dbo.PRJ_BuildLogInfo INNER JOIN
                dbo.PRJ_BuildLog ON dbo.PRJ_BuildLogInfo.BuildLogID = dbo.PRJ_BuildLog.BuildLogID
WHERE   (dbo.PRJ_BuildLog.Status <> '新建') AND (dbo.PRJ_BuildLog.Status <> '作废')
GROUP BY dbo.PRJ_BuildLogInfo.TeamName, dbo.PRJ_BuildLog.PlanName, dbo.PRJ_BuildLog.PlanID, 
                dbo.PRJ_BuildLog.BuildLogName, dbo.PRJ_BuildLog.CreateUser, dbo.PRJ_BuildLog.CreateTime, 
                dbo.PRJ_BuildLog.AuditUserName, dbo.PRJ_BuildLog.AuditTime, dbo.PRJ_BuildLog.BuildLogID