实体框架锁定数据库

Question

下面的查询非常慢且效率低下。根据用户提供的参数，可能需要一分钟才能运行。我们显然可以使查询更有效，但我们的问题是，当它运行时，它似乎锁定了数据库。

在我们的客户网站上，当它运行时，我们的应用程序将挂在我们客户网站上的每台电脑上，直到完成为止。如果我们在管理工作室中运行相同的查询，它仍然需要大约一分钟才能运行，但它不会影响任何其他PC终端..即。数据库没有锁定。

有没有人对通过EF发生这种情况有什么想法？ （我们正在使用EF6）

编辑：重申 - 我们的问题不是改进查询（我们可以做到这一点）。这就是为什么这个查询在通过实体框架运行时锁定数据库的原因（影响每个实例）我们的应用程序在我们的客户网站上运行），并且在通过管理工作室运行时不会影响任何应用程序。

var details =
                        (from stock in
                             entities.StockTransactions.Where(x => x.Deleted == null 
                                                                   && x.NouTransactionTypeID == NouvemGlobal.TransactionTypeGoodsReceiptId
                                                                   && x.IsBox == true)
                         join attribute in entities.Attributes.Where(x => DbFunctions.TruncateTime(x.GradingDate) >= start &&
                                                             DbFunctions.TruncateTime(x.GradingDate) <= end && x.NouDocStatusID != status) on stock.AttributeID equals attribute.AttributeID
                         join intakeDetail in entities.APGoodsReceiptDetails on stock.MasterTableID equals intakeDetail.APGoodsReceiptDetailID
                         join intake in entities.APGoodsReceipts on intakeDetail.APGoodsReceiptID equals intake.APGoodsReceiptID
                         select new StockDetail
                         {
                             LoadingStockDetail = true,
                             Paid = stock.KillPaymentItems.Any(pay => pay.Deleted == null),
                             StockTransactionID = stock.StockTransactionID,
                             APGoodsReceiptDetailID = stock.MasterTableID,
                             AttributeID = attribute.AttributeID,
                             TransactionWeight = stock.TransactionWeight,
                             Serial = stock.Serial,
                             TransactionDate = stock.TransactionDate,
                             Detained = attribute.Detained,
                             Condemned = attribute.Condemned,
                             Eartag = attribute.Eartag,
                             KillType = attribute.KillType,
                             NouDocStatusID = attribute.NouDocStatusID,
                             Breed = attribute.NouBreed,
                             Grade = attribute.Grade,
                             DOB = attribute.DOB,
                             Identigen = attribute.Identigen,
                             HoldingNumber = attribute.HoldingNumber,
                             CountryOfOrigin = attribute.CountryOfOrigin,
                             KillNumber = attribute.KillNumber,
                             Generic1 = attribute.Generic1,
                             CarcassNumber = attribute.CarcassNumber,
                             CarcassSide = attribute.CarcassSide == 1 ? StockDetail.Side.Side1 : StockDetail.Side.Side2,
                             AgeInMonths = attribute.AgeInMonths,
                             AgeInDays = attribute.AgeInDays,
                             Cleanliness = attribute.NouCleanliness,
                             SequencedDate = attribute.SequencedDate,
                             Category = attribute.NouCategory,
                             Sex = attribute.Sex,
                             GradingDate = attribute.GradingDate,
                             CustomerID = attribute.Customer,
                             FarmAssured = attribute.FarmAssured,
                             Clipped = attribute.Clipped,
                             Casualty = attribute.Casualty,
                             Lame = attribute.Lame,
                             IsFullCarcass = stock.IsBox,
                             NumberOfMoves = attribute.NoOfMoves,
                             PreviousResidency = attribute.PreviousResidency,
                             TotalResidency = attribute.TotalResidency,
                             CurrentResidency = attribute.CurrentResidency,
                             DateOfLastMove = attribute.DateOfLastMove,
                             Imported = attribute.Imported,
                             PaidWeight = attribute.ColdWeight,
                             UTM = attribute.AgeInMonths != null && attribute.AgeInMonths <= ApplicationSettings.GraderLabelUOMAge ? 1 : 0,
                             OTM = attribute.AgeInMonths != null && attribute.AgeInMonths > ApplicationSettings.GraderLabelUOMAge ? 1 : 0,
                             SupplierID = intake.BPMasterID_Supplier
                         })
                            .ToList();