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MSSQL 2008 DB からストアド プロシージャ コールによって取得される大規模なデータ セットがあります。データセットは、300,000 行以上のフラット化された階層データ (Events>InventorySpaces>ScheduledInventorySpaces) または (Parent>Child>GrandChild) です。

処理上の理由から、これを階層オブジェクト モデルに変換し、それに対して分析を実行する必要があります。

階層オブジェクトの作成で処理の遅延が発生しています。これを高速化する方法についてコミュニティの意見を聞きたいです。プリンク? ラムダ結合？等？

クラス定義は次のとおりです。

    public class Evt
{
    public int NetCodeID { get; set; }
    public int EventID { get; set; }
    public int SiteID { get; set; }
    public bool HomeGame { get; set; }
    public string Days { get; set; }
    public int DayBit { get; set; }
    public int EventIDRC { get; set; }
    public List<InvSpace> InvSpaces { get; set; }

    public Evt()
    {
    }

    public Evt(int netcodeid, int eventid, int siteid, bool homegame, string days, int daybit, int eventidrc)
    {
        this.NetCodeID = netcodeid;
        this.EventID = eventid;
        this.SiteID = siteid;
        this.HomeGame = homegame;
        this.Days = days;
        this.DayBit = daybit;
        this.EventIDRC = eventidrc;
        this.InvSpaces = new List<InvSpace>();
    }

    public Evt(int netcodeid, int eventid, int siteid, bool homegame, string days, int daybit, int eventidrc, List<InvSpace> invspaces)
    {
        this.NetCodeID = netcodeid;
        this.EventID = eventid;
        this.SiteID = siteid;
        this.HomeGame = homegame;
        this.Days = days;
        this.DayBit = daybit;
        this.EventIDRC = eventidrc;
        this.InvSpaces = invspaces;
    }

}

class EvtResultEqualityComparer : IEqualityComparer<USP_GetAvailableScheduledInventorySpacesResult>
{
    public bool Equals(USP_GetAvailableScheduledInventorySpacesResult x, USP_GetAvailableScheduledInventorySpacesResult y)
    {
        return Equals(x.EventID, y.EventID);
    }

    public int GetHashCode(USP_GetAvailableScheduledInventorySpacesResult x)
    {
        return x.EventID.GetHashCode();
    }
}

    public class InvSpace
{
    public int InventorySpaceID { get; set; }
    public string InventoryName { get; set; }
    public int OrderNumber { get; set; }
    public int InventoryClearanceTypeBit { get; set; }
    public int InventoryClearanceTypeID { get; set; }
    public int InventoryProductTypeID { get; set; }
    public int InventoryTypeID { get; set; }
    public int AvailableLength { get; set; }
    public List<string> InventoryGroupAdvertiserCategories { get; set; }
    public List<string> AdvertiserCategories { get; set; }
    public int? Positions { get; set; }
    public List<ScheduledInvSpace> ScheduledInvSpaces { get; set; }

    public InvSpace()
    {
    }

    public InvSpace(int inventoryspaceid, string inventoryname, int ordernumber, int inventoryclearancetypebit, int inventoryclearancetypeid, int inventoryproducttypeid, int inventorytypeid)
    {
        this.InventorySpaceID = inventoryspaceid;
        this.InventoryName = inventoryname;
        this.OrderNumber = ordernumber;
        this.InventoryClearanceTypeBit = inventoryclearancetypebit;
        this.InventoryClearanceTypeID = inventoryclearancetypeid;
        this.InventoryProductTypeID = inventoryproducttypeid;
        this.InventoryTypeID = inventorytypeid;
        this.InventoryGroupAdvertiserCategories = new List<string>();
        this.AdvertiserCategories = new List<string>();
        this.ScheduledInvSpaces = new List<ScheduledInvSpace>();
        this.AvailableLength = ScheduledInvSpaces.Count*5;
    }

    public InvSpace(int inventoryspaceid, string inventoryname, int ordernumber, int inventoryclearancetypebit, int inventoryclearancetypeid, int inventoryproducttypeid, int inventorytypeid, string inventorygroupadvertisercategories, string advertisercategories, int positions)
    {
        this.InventorySpaceID = inventoryspaceid;
        this.InventoryName = inventoryname;
        this.OrderNumber = ordernumber;
        this.InventoryClearanceTypeBit = inventoryclearancetypebit;
        this.InventoryClearanceTypeID = inventoryclearancetypeid;
        this.InventoryProductTypeID = inventoryproducttypeid;
        this.InventoryTypeID = inventorytypeid;
        this.InventoryGroupAdvertiserCategories = inventorygroupadvertisercategories != null
                                                    ? inventorygroupadvertisercategories.Split('|').ToList()
                                                    : new List<string>();
        this.AdvertiserCategories = advertisercategories != null
                                        ? advertisercategories.Split('|').ToList()
                                        : new List<string>();
        this.Positions = positions;
        this.ScheduledInvSpaces = new List<ScheduledInvSpace>();
        this.AvailableLength = ScheduledInvSpaces.Count * 5;
    }

    public InvSpace(int inventoryspaceid, string inventoryname, int ordernumber, int inventoryclearancetypebit, int inventoryclearancetypeid, int inventoryproducttypeid, int inventorytypeid, string inventorygroupadvertisercategories, string advertisercategories, int positions, List<ScheduledInvSpace> scheduledinvspaces)
    {
        this.InventorySpaceID = inventoryspaceid;
        this.InventoryName = inventoryname;
        this.OrderNumber = ordernumber;
        this.InventoryClearanceTypeBit = inventoryclearancetypebit;
        this.InventoryClearanceTypeID = inventoryclearancetypeid;
        this.InventoryProductTypeID = inventoryproducttypeid;
        this.InventoryTypeID = inventorytypeid;
        this.InventoryGroupAdvertiserCategories = inventorygroupadvertisercategories != null
                                                    ? inventorygroupadvertisercategories.Split('|').ToList()
                                                    : new List<string>();
        this.AdvertiserCategories = advertisercategories != null
                                        ? advertisercategories.Split('|').ToList()
                                        : new List<string>();
        this.Positions = positions;
        this.ScheduledInvSpaces = scheduledinvspaces;
        this.AvailableLength = ScheduledInvSpaces.Count * 5;
    }
}

class InvSpaceResultEqualityComparer : IEqualityComparer<USP_GetAvailableScheduledInventorySpacesResult>
{
    public bool Equals(USP_GetAvailableScheduledInventorySpacesResult x, USP_GetAvailableScheduledInventorySpacesResult y)
    {
        return Equals(x.InventorySpaceID, y.InventorySpaceID) && Equals(x.EventID, y.EventID);
    }

    public int GetHashCode(USP_GetAvailableScheduledInventorySpacesResult x)
    {
        return x.InventorySpaceID.GetHashCode();
    }
}

    public class ScheduledInvSpace
{
    public int ScheduledInventorySpaceID { get; set; }
    public int SlotID { get; set; }
    public int Length { get; set; }
    public int? ContractOrderID { get; set; }
    public int? RotationID { get; set; }
    public int InventorySequence { get; set; }
    public string InventoryGroupAdvertiserCategoryRule { get; set; }
    public string AdvertiserCategoryRule { get; set; }
    public int? PositionRule { get; set; }
    public string BumpRule { get; set; }
    public string ClearanceRule { get; set; }
    public bool? Bonus { get; set; }

    public ScheduledInvSpace()
    {
    }

    public ScheduledInvSpace(int scheduledinventoryspaceid, int slotid, int length, int inventorysequence, string inventorygroupadvertisercategoryrule, string advertisercategoryrule, int? positionrule, string bumprule, string clearancerule, bool? bonus)
    {
        this.ScheduledInventorySpaceID = scheduledinventoryspaceid;
        this.SlotID = slotid;
        this.Length = length;
        this.ContractOrderID = null;
        this.RotationID = null;
        this.InventorySequence = inventorysequence;
        this.InventoryGroupAdvertiserCategoryRule = inventorygroupadvertisercategoryrule;
        this.AdvertiserCategoryRule = advertisercategoryrule;
        this.PositionRule = positionrule;
        this.BumpRule = bumprule;
        this.ClearanceRule = clearancerule;
        this.Bonus = bonus;
    }

    public ScheduledInvSpace(int scheduledinventoryspaceid, int slotid, int length, int? contractorderid, int? rotationid, int inventorysequence, string inventorygroupadvertisercategoryrule, string advertisercategoryrule, int? positionrule, string bumprule, string clearancerule, bool? bonus)
    {
        this.ScheduledInventorySpaceID = scheduledinventoryspaceid;
        this.SlotID = slotid;
        this.Length = length;
        this.ContractOrderID = contractorderid;
        this.RotationID = rotationid;
        this.InventorySequence = inventorysequence;
        this.InventoryGroupAdvertiserCategoryRule = inventorygroupadvertisercategoryrule;
        this.AdvertiserCategoryRule = advertisercategoryrule;
        this.PositionRule = positionrule;
        this.BumpRule = bumprule;
        this.ClearanceRule = clearancerule;
        this.Bonus = bonus;
    }
}

class SheduledInvSpaceResultEqualityComparer : IEqualityComparer<USP_GetAvailableScheduledInventorySpacesResult>
{
    public bool Equals(USP_GetAvailableScheduledInventorySpacesResult x, USP_GetAvailableScheduledInventorySpacesResult y)
    {
        return Equals(x.ScheduledInventorySpaceID, y.ScheduledInventorySpaceID);
    }

    public int GetHashCode(USP_GetAvailableScheduledInventorySpacesResult x)
    {
        return x.ScheduledInventorySpaceID.GetHashCode();
    }
}

次のコードを使用して、この階層を設定しています。

List<Evt>games = results
                            .Distinct(new EvtResultEqualityComparer())
                            .Select(e => 
                                new Evt(e.NetCodeID.Value, e.EventID.Value, e.SiteID.Value, e.HomeGame.Value, e.Days, e.DayBit.Value, e.EventIDRC.Value, results
                                    .Distinct(new InvSpaceResultEqualityComparer())
                                    .Where(i => i.EventID.Value == e.EventID.Value && i.InventoryProductTypeID.Value == (ProductTypes[i.EventIDRC.Value % ProductTypes.Count]))
                                    .Select(i => 
                                        new InvSpace(i.InventorySpaceID.Value, i.InventoryName, i.OrderNumber.Value, i.InventoryClearanceTypeBit.Value, i.InventoryClearanceTypeID.Value, i.InventoryProductTypeID.Value, i.InventoryTypeID.Value, i.InventoryGroupAdvertiserCategoryRule, i.AdvertiserCategoryRule, i.PositionRule.GetValueOrDefault(0), results
                                            .Distinct(new SheduledInvSpaceResultEqualityComparer())
                                            .Where(s => s.EventID.Value == e.EventID.Value && s.InventorySpaceID.Value == i.InventorySpaceID.Value)
                                            .Select(s => 
                                                new ScheduledInvSpace(s.ScheduledInventorySpaceID.Value, s.SlotID.Value, s.Length.Value, s.ContractOrderID, s.RotationID, s.InventorySequence.Value, s.InventoryGroupAdvertiserCategoryRule, s.AdvertiserCategoryRule, s.PositionRule.GetValueOrDefault(0), s.BumpRule, s.ClearanceRule, s.Bonus)).ToList()
                                                )).Where(i => i.AvailableLength >= length).ToList())).ToList();
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1 に答える 1

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解決策は、LINQ group by を使用することです。Lambda 式の group by を避け、select from group by だけを使用すると読みやすくなります。

于 2013-05-24T21:01:27.030 に答える