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EFとストアドプロシージャを使用したLazyLoading

2016-04-19 11 views
2

EFの実行には時間がかかっていました.SQL Server Profilerを使用しているときには、クエリが分かれていることがわかりました。EFとストアドプロシージャを使用したLazyLoading

ローディング時間を短縮するためにストアドプロシージャを作成することにしました。

CREATE PROCEDURE GetAllProducts 
AS 
BEGIN 
    SET NOCOUNT ON; 

    SELECT 
     a.*, 
     b.*, 
     b1.*, 
     c.*, 
     preview.*, 
     e.*, 
     a1.*, 
     a2.*, 
     a3.*, 
     a4.*, 
     a5.*, 
     a6.*, 
     a7.*, 
     a8.*, 
     a9.*, 
     a10.*, 
     a11.*, 
     a12.*, 
     a13.* 
    FROM 
     Products AS a 
    INNER JOIN 
     Details AS b ON a.DetailId = b.Id 
    INNER JOIN 
     Categories AS c ON a.CategoryId = c.Id 
    INNER JOIN 
     Previews AS preview ON a.PreviewId = preview.Id 
    INNER JOIN 
     CameraAttributes AS e ON a.AttributeId = e.Id 
    INNER JOIN 
     CameraAttributePicture AS a1 ON e.Id = a1.AttributeId 
    INNER JOIN 
     CameraAttributeVideo AS a2 ON e.Id = a2.AttributeId 
    INNER JOIN 
     CameraAttributeAudio AS a3 ON e.Id = a3.AttributeId 
    INNER JOIN 
     CameraAttributeBattery AS a4 ON e.Id = a4.AttributeId 
    INNER JOIN 
     CameraAttributeDimensions AS a5 ON e.Id = a5.AttributeId 
    INNER JOIN 
     CameraAttributeDisplay AS a6 ON e.Id = a6.AttributeId 
    INNER JOIN 
     CameraAttributeLightExposure AS a7 ON e.Id = a7.AttributeId 
    INNER JOIN 
     CameraAttributeFlash as a8 ON e.Id = a8.AttributeId 
    INNER JOIN 
     CameraAttributeFocusing AS a9 ON e.Id = a9.AttributeId 
    INNER JOIN 
     CameraAttributeInterface AS a10 ON e.Id = a10.AttributeId 
    INNER JOIN 
     CameraAttributeLens AS a11 ON e.Id = a11.AttributeId 
    INNER JOIN 
     CameraAttributeLensZoom AS b1 ON a11.id = b1.LensId 
    INNER JOIN 
     CameraAttributeNetwork AS a12 ON e.Id = a12.AttributeId 
    INNER JOIN 
     CameraAttributeShutter AS a13 ON e.Id = a13.AttributeId 
END 
GO

私は、彼らが自分のアプリケーションで私のモデルと一致することを期待して、クエリ内のすべてのテーブルに参加しています：

public class Product 
{ 
    public int Id { get; set; } 
    [MaxLength(255)] public string GTIN { get; set; } 
    [Required] [MaxLength(100)] public string ProductId { get; set; } 
    [Required] [MaxLength(100)] public string Make { get; set; } 
    [MaxLength(100)] public string Model { get; set; } 
    public bool Expert { get; set; } 
    public bool Sponsored { get; set; } 

    public virtual CameraAttribute Attributes { get; set; } 
    public virtual Detail Details { get; set; } 
    public virtual Category Category { get; set; } 
    public virtual Preview Preview { get; set; } 
}

問題は、すべての仮想プロパティがnullである、であるそれはこのようになります。

ストアドプロシージャを使用しているときにそれらを読み込むことができないと仮定します。そのため、プロパティを取得するにはどうすればよいですか？

ブラウザがクラッシュするため、投稿できませんが、ここにはスニペットがあります。私はそれが役に立てば幸い：

Opened connection asynchronously at 19/04/2016 12:31:57 +01:00 

'iisexpress.exe' (CLR v4.0.30319: /LM/W3SVC/2/ROOT-38-131055390555737826): Loaded 'EntityFrameworkDynamicProxies-Piiick.Web'. 
SELECT 
    [Extent1].[Id] AS [Id], 
    [Extent1].[GTIN] AS [GTIN], 
    [Extent1].[ProductId] AS [ProductId], 
    [Extent1].[Make] AS [Make], 
    [Extent1].[Model] AS [Model], 
    [Extent1].[Expert] AS [Expert], 
    [Extent1].[Sponsored] AS [Sponsored], 
    [Extent1].[AttributeId] AS [AttributeId], 
    [Extent1].[CategoryId] AS [CategoryId], 
    [Extent1].[DetailId] AS [DetailId], 
    [Extent1].[PreviewId] AS [PreviewId] 
    FROM [dbo].[Products] AS [Extent1] 


-- Executing asynchronously at 19/04/2016 12:31:57 +01:00 

-- Completed in 7 ms with result: SqlDataReader 



Closed connection at 19/04/2016 12:31:57 +01:00 

Opened connection at 19/04/2016 12:32:01 +01:00 

SELECT 
    [Join13].[Id1] AS [Id], 
    [Join13].[CompatibleMemory] AS [CompatibleMemory], 
    [Join13].[WhiteBalance] AS [WhiteBalance], 
    [Join13].[SceneModes] AS [SceneModes], 
    [Join13].[ShootingModes] AS [ShootingModes], 
    [Join13].[PhotoEffects] AS [PhotoEffects], 
    [Join13].[CameraPlayback] AS [CameraPlayback], 
    [Join13].[Tripod] AS [Tripod], 
    [Join13].[DirectPrinting] AS [DirectPrinting], 
    [Join13].[Colour] AS [Colour], 
    [Join13].[Id2] AS [Id1], 
    [Join13].[Id3] AS [Id2], 
    [Join13].[Id4] AS [Id3], 
    [Join13].[Id5] AS [Id4], 
    [Join13].[Id6] AS [Id5], 
    [Join13].[Id7] AS [Id6], 
    [Join13].[Id8] AS [Id7], 
    [Join13].[Id9] AS [Id8], 
    [Join13].[Id10] AS [Id9], 
    [Join13].[Id11] AS [Id10], 
    [Join13].[Id12] AS [Id11], 
    [Join13].[Id13] AS [Id12], 
    [Join13].[Id14] AS [Id13] 
    FROM [dbo].[Products] AS [Extent1] 
    INNER JOIN (SELECT [Extent2].[Id] AS [Id1], [Extent2].[CompatibleMemory] AS [CompatibleMemory], [Extent2].[WhiteBalance] AS [WhiteBalance], [Extent2].[SceneModes] AS [SceneModes], [Extent2].[ShootingModes] AS [ShootingModes], [Extent2].[PhotoEffects] AS [PhotoEffects], [Extent2].[CameraPlayback] AS [CameraPlayback], [Extent2].[Tripod] AS [Tripod], [Extent2].[DirectPrinting] AS [DirectPrinting], [Extent2].[Colour] AS [Colour], [Extent3].[Id] AS [Id2], [Extent4].[Id] AS [Id3], [Extent5].[Id] AS [Id4], [Extent6].[Id] AS [Id5], [Extent7].[Id] AS [Id6], [Extent8].[Id] AS [Id7], [Extent9].[Id] AS [Id8], [Extent10].[Id] AS [Id9], [Extent11].[Id] AS [Id10], [Extent12].[Id] AS [Id11], [Extent13].[Id] AS [Id12], [Extent14].[Id] AS [Id13], [Extent15].[Id] AS [Id14] 
     FROM    [dbo].[CameraAttributes] AS [Extent2] 
     LEFT OUTER JOIN [dbo].[CameraAttributeAudio] AS [Extent3] ON [Extent2].[Id] = [Extent3].[AttributeId] 
     LEFT OUTER JOIN [dbo].[CameraAttributeBattery] AS [Extent4] ON [Extent2].[Id] = [Extent4].[AttributeId] 
     LEFT OUTER JOIN [dbo].[CameraAttributeDimensions] AS [Extent5] ON [Extent2].[Id] = [Extent5].[AttributeId] 
     LEFT OUTER JOIN [dbo].[CameraAttributeDisplay] AS [Extent6] ON [Extent2].[Id] = [Extent6].[AttributeId] 
     LEFT OUTER JOIN [dbo].[CameraAttributeLightExposure] AS [Extent7] ON [Extent2].[Id] = [Extent7].[AttributeId] 
     LEFT OUTER JOIN [dbo].[CameraAttributeFlash] AS [Extent8] ON [Extent2].[Id] = [Extent8].[AttributeId] 
     LEFT OUTER JOIN [dbo].[CameraAttributeFocusing] AS [Extent9] ON [Extent2].[Id] = [Extent9].[AttributeId] 
     LEFT OUTER JOIN [dbo].[CameraAttributeInterface] AS [Extent10] ON [Extent2].[Id] = [Extent10].[AttributeId] 
     LEFT OUTER JOIN [dbo].[CameraAttributeLens] AS [Extent11] ON [Extent2].[Id] = [Extent11].[AttributeId] 
     LEFT OUTER JOIN [dbo].[CameraAttributeNetwork] AS [Extent12] ON [Extent2].[Id] = [Extent12].[AttributeId] 
     LEFT OUTER JOIN [dbo].[CameraAttributePicture] AS [Extent13] ON [Extent2].[Id] = [Extent13].[AttributeId] 
     LEFT OUTER JOIN [dbo].[CameraAttributeShutter] AS [Extent14] ON [Extent2].[Id] = [Extent14].[AttributeId] 
     LEFT OUTER JOIN [dbo].[CameraAttributeVideo] AS [Extent15] ON [Extent2].[Id] = [Extent15].[AttributeId]) AS [Join13] ON [Extent1].[AttributeId] = [Join13].[Id1] 
    WHERE [Extent1].[Id] = @EntityKeyValue1 


-- EntityKeyValue1: '1' (Type = Int32, IsNullable = false) 

-- Executing at 19/04/2016 12:32:01 +01:00 

-- Completed in 11 ms with result: SqlDataReader 



Closed connection at 19/04/2016 12:32:01 +01:00 

Opened connection at 19/04/2016 12:32:01 +01:00 

SELECT 
    [Extent1].[Id] AS [Id], 
    [Extent1].[SupportedFormats] AS [SupportedFormats], 
    [Extent1].[AttributeId] AS [AttributeId] 
    FROM [dbo].[CameraAttributeAudio] AS [Extent1] 
    WHERE [Extent1].[AttributeId] = @EntityKeyValue1 


-- EntityKeyValue1: '1' (Type = Int32, IsNullable = false) 

-- Executing at 19/04/2016 12:32:01 +01:00 

-- Completed in 1 ms with result: SqlDataReader 



Closed connection at 19/04/2016 12:32:01 +01:00 

Opened connection at 19/04/2016 12:32:01 +01:00 

SELECT 
    [Extent1].[Id] AS [Id], 
    [Extent1].[PowerSource] AS [PowerSource], 
    [Extent1].[Technology] AS [Technology], 
    [Extent1].[Life] AS [Life], 
    [Extent1].[Type] AS [Type], 
    [Extent1].[AttributeId] AS [AttributeId] 
    FROM [dbo].[CameraAttributeBattery] AS [Extent1] 
    WHERE [Extent1].[AttributeId] = @EntityKeyValue1 


-- EntityKeyValue1: '1' (Type = Int32, IsNullable = false) 

-- Executing at 19/04/2016 12:32:01 +01:00 

-- Completed in 6 ms with result: SqlDataReader 



Closed connection at 19/04/2016 12:32:01 +01:00 

Opened connection at 19/04/2016 12:32:01 +01:00 

SELECT 
    [Extent1].[Id] AS [Id], 
    [Extent1].[Width] AS [Width], 
    [Extent1].[Depth] AS [Depth], 
    [Extent1].[Height] AS [Height], 
    [Extent1].[Weight] AS [Weight], 
    [Extent1].[WeightIncludingBattery] AS [WeightIncludingBattery], 
    [Extent1].[AttributeId] AS [AttributeId] 
    FROM [dbo].[CameraAttributeDimensions] AS [Extent1] 
    WHERE [Extent1].[AttributeId] = @EntityKeyValue1 


-- EntityKeyValue1: '1' (Type = Int32, IsNullable = false) 

-- Executing at 19/04/2016 12:32:01 +01:00 

-- Completed in 3 ms with result: SqlDataReader 



Closed connection at 19/04/2016 12:32:01 +01:00 

Opened connection at 19/04/2016 12:32:01 +01:00 

SELECT 
    [Extent1].[Id] AS [Id], 
    [Extent1].[Type] AS [Type], 
    [Extent1].[Diagonal] AS [Diagonal], 
    [Extent1].[Resolution] AS [Resolution], 
    [Extent1].[AttributeId] AS [AttributeId] 
    FROM [dbo].[CameraAttributeDisplay] AS [Extent1] 
    WHERE [Extent1].[AttributeId] = @EntityKeyValue1 


-- EntityKeyValue1: '1' (Type = Int32, IsNullable = false) 

-- Executing at 19/04/2016 12:32:01 +01:00 

-- Completed in 1 ms with result: SqlDataReader 



Closed connection at 19/04/2016 12:32:01 +01:00 

Opened connection at 19/04/2016 12:32:01 +01:00 

SELECT 
    [Extent1].[Id] AS [Id], 
    [Extent1].[IsoSensitivity] AS [IsoSensitivity], 
    [Extent1].[Mode] AS [Mode], 
    [Extent1].[Correction] AS [Correction], 
    [Extent1].[Metering] AS [Metering], 
    [Extent1].[Minimum] AS [Minimum], 
    [Extent1].[Maxiumum] AS [Maxiumum], 
    [Extent1].[AttributeId] AS [AttributeId] 
    FROM [dbo].[CameraAttributeLightExposure] AS [Extent1] 
    WHERE [Extent1].[AttributeId] = @EntityKeyValue1 


-- EntityKeyValue1: '1' (Type = Int32, IsNullable = false) 

-- Executing at 19/04/2016 12:32:01 +01:00 

-- Completed in 1 ms with result: SqlDataReader 



Closed connection at 19/04/2016 12:32:01 +01:00 

Opened connection at 19/04/2016 12:32:01 +01:00 

SELECT 
    [Extent1].[Id] AS [Id], 
    [Extent1].[Modes] AS [Modes], 
    [Extent1].[ExposureLock] AS [ExposureLock], 
    [Extent1].[RangeWide] AS [RangeWide], 
    [Extent1].[RangeTelephoto] AS [RangeTelephoto], 
    [Extent1].[RechargeTime] AS [RechargeTime], 
    [Extent1].[Speed] AS [Speed], 
    [Extent1].[AttributeId] AS [AttributeId] 
    FROM [dbo].[CameraAttributeFlash] AS [Extent1] 
    WHERE [Extent1].[AttributeId] = @EntityKeyValue1 


-- EntityKeyValue1: '1' (Type = Int32, IsNullable = false) 

-- Executing at 19/04/2016 12:32:01 +01:00 

-- Completed in 2 ms with result: SqlDataReader 



Closed connection at 19/04/2016 12:32:01 +01:00 

Opened connection at 19/04/2016 12:32:01 +01:00 

SELECT 
    [Extent1].[Id] AS [Id], 
    [Extent1].[Focus] AS [Focus], 
    [Extent1].[Adjustment] AS [Adjustment], 
    [Extent1].[AutoFocusModes] AS [AutoFocusModes], 
    [Extent1].[ClosestDistance] AS [ClosestDistance], 
    [Extent1].[NormalRange] AS [NormalRange], 
    [Extent1].[MacroRangeTelephoto] AS [MacroRangeTelephoto], 
    [Extent1].[MacroRangeWide] AS [MacroRangeWide], 
    [Extent1].[AutoModeTelephoto] AS [AutoModeTelephoto], 
    [Extent1].[AutoModeWide] AS [AutoModeWide], 
    [Extent1].[AttributeId] AS [AttributeId] 
    FROM [dbo].[CameraAttributeFocusing] AS [Extent1] 
    WHERE [Extent1].[AttributeId] = @EntityKeyValue1 


-- EntityKeyValue1: '1' (Type = Int32, IsNullable = false) 

-- Executing at 19/04/2016 12:32:01 +01:00 

-- Completed in 1 ms with result: SqlDataReader 



Closed connection at 19/04/2016 12:32:01 +01:00 

Opened connection at 19/04/2016 12:32:01 +01:00 

SELECT 
    [Extent1].[Id] AS [Id], 
    [Extent1].[PictBridge] AS [PictBridge], 
    [Extent1].[USBVersion] AS [USBVersion], 
    [Extent1].[USBType] AS [USBType], 
    [Extent1].[HDMI] AS [HDMI], 
    [Extent1].[HDMIType] AS [HDMIType], 
    [Extent1].[AttributeId] AS [AttributeId] 
    FROM [dbo].[CameraAttributeInterface] AS [Extent1] 
    WHERE [Extent1].[AttributeId] = @EntityKeyValue1 


-- EntityKeyValue1: '1' (Type = Int32, IsNullable = false) 

-- Executing at 19/04/2016 12:32:01 +01:00 

-- Completed in 1 ms with result: SqlDataReader 



Closed connection at 19/04/2016 12:32:01 +01:00 

Opened connection at 19/04/2016 12:32:01 +01:00 

SELECT 
    [Join1].[Id1] AS [Id], 
    [Join1].[FocalLength] AS [FocalLength], 
    [Join1].[MinimumFocalLength] AS [MinimumFocalLength], 
    [Join1].[MaximumFocalLength] AS [MaximumFocalLength], 
    [Join1].[MinimumAperture] AS [MinimumAperture], 
    [Join1].[MaximumAperture] AS [MaximumAperture], 
    [Join1].[LensStructure] AS [LensStructure], 
    [Join1].[Id2] AS [Id1], 
    [Join1].[AttributeId] AS [AttributeId] 
    FROM [dbo].[CameraAttributeLens] AS [Extent1] 
    INNER JOIN (SELECT [Extent2].[Id] AS [Id1], [Extent2].[FocalLength] AS [FocalLength], [Extent2].[MinimumFocalLength] AS [MinimumFocalLength], [Extent2].[MaximumFocalLength] AS [MaximumFocalLength], [Extent2].[MinimumAperture] AS [MinimumAperture], [Extent2].[MaximumAperture] AS [MaximumAperture], [Extent2].[LensStructure] AS [LensStructure], [Extent2].[AttributeId] AS [AttributeId], [Extent3].[Id] AS [Id2] 
     FROM [dbo].[CameraAttributeLens] AS [Extent2] 
     LEFT OUTER JOIN [dbo].[CameraAttributeLensZoom] AS [Extent3] ON [Extent2].[Id] = [Extent3].[LensId]) AS [Join1] ON [Extent1].[Id] = [Join1].[Id1] 
    WHERE [Extent1].[AttributeId] = @EntityKeyValue1 


-- EntityKeyValue1: '1' (Type = Int32, IsNullable = false) 

-- Executing at 19/04/2016 12:32:01 +01:00 

-- Completed in 2 ms with result: SqlDataReader 



Closed connection at 19/04/2016 12:32:01 +01:00 

Opened connection at 19/04/2016 12:32:01 +01:00 

SELECT 
    [Extent1].[Id] AS [Id], 
    [Extent1].[Optical] AS [Optical], 
    [Extent1].[Digital] AS [Digital], 
    [Extent1].[ExtraSmart] AS [ExtraSmart], 
    [Extent1].[Combined] AS [Combined], 
    [Extent1].[LensId] AS [LensId] 
    FROM [dbo].[CameraAttributeLensZoom] AS [Extent1] 
    WHERE [Extent1].[LensId] = @EntityKeyValue1 


-- EntityKeyValue1: '1' (Type = Int32, IsNullable = false) 

-- Executing at 19/04/2016 12:32:01 +01:00 

-- Completed in 1 ms with result: SqlDataReader 



Closed connection at 19/04/2016 12:32:01 +01:00 

Opened connection at 19/04/2016 12:32:01 +01:00 

SELECT 
    [Extent1].[Id] AS [Id], 
    [Extent1].[WiFi] AS [WiFi], 
    [Extent1].[WiFiStandards] AS [WiFiStandards], 
    [Extent1].[NFC] AS [NFC], 
    [Extent1].[AttributeId] AS [AttributeId] 
    FROM [dbo].[CameraAttributeNetwork] AS [Extent1] 
    WHERE [Extent1].[AttributeId] = @EntityKeyValue1 


-- EntityKeyValue1: '1' (Type = Int32, IsNullable = false) 

-- Executing at 19/04/2016 12:32:01 +01:00 

-- Completed in 2 ms with result: SqlDataReader 



Closed connection at 19/04/2016 12:32:01 +01:00 

Opened connection at 19/04/2016 12:32:01 +01:00 

SELECT 
    [Extent1].[Id] AS [Id], 
    [Extent1].[Megapixel] AS [Megapixel], 
    [Extent1].[Type] AS [Type], 
    [Extent1].[SensorType] AS [SensorType], 
    [Extent1].[MaxResolution] AS [MaxResolution], 
    [Extent1].[Resolutions] AS [Resolutions], 
    [Extent1].[Stablizer] AS [Stablizer], 
    [Extent1].[Location] AS [Location], 
    [Extent1].[SupportedAspectRatios] AS [SupportedAspectRatios], 
    [Extent1].[TotalMegapixels] AS [TotalMegapixels], 
    [Extent1].[Formats] AS [Formats], 
    [Extent1].[AttributeId] AS [AttributeId] 
    FROM [dbo].[CameraAttributePicture] AS [Extent1] 
    WHERE [Extent1].[AttributeId] = @EntityKeyValue1 


-- EntityKeyValue1: '1' (Type = Int32, IsNullable = false) 

-- Executing at 19/04/2016 12:32:01 +01:00 

-- Completed in 2 ms with result: SqlDataReader 



Closed connection at 19/04/2016 12:32:01 +01:00 

Opened connection at 19/04/2016 12:32:01 +01:00 

SELECT 
    [Extent1].[Id] AS [Id], 
    [Extent1].[FastestSpeed] AS [FastestSpeed], 
    [Extent1].[SlowestSpeed] AS [SlowestSpeed], 
    [Extent1].[AttributeId] AS [AttributeId] 
    FROM [dbo].[CameraAttributeShutter] AS [Extent1] 
    WHERE [Extent1].[AttributeId] = @EntityKeyValue1 


-- EntityKeyValue1: '1' (Type = Int32, IsNullable = false) 

-- Executing at 19/04/2016 12:32:01 +01:00 

-- Completed in 1 ms with result: SqlDataReader 



Closed connection at 19/04/2016 12:32:01 +01:00 

Opened connection at 19/04/2016 12:32:01 +01:00 

SELECT 
    [Extent1].[Id] AS [Id], 
    [Extent1].[MaxResolution] AS [MaxResolution], 
    [Extent1].[Resolutions] AS [Resolutions], 
    [Extent1].[CaptureResolution] AS [CaptureResolution], 
    [Extent1].[FrameRate] AS [FrameRate], 
    [Extent1].[FullHD] AS [FullHD], 
    [Extent1].[SupportedFormats] AS [SupportedFormats], 
    [Extent1].[AttributeId] AS [AttributeId] 
    FROM [dbo].[CameraAttributeVideo] AS [Extent1] 
    WHERE [Extent1].[AttributeId] = @EntityKeyValue1 


-- EntityKeyValue1: '1' (Type = Int32, IsNullable = false) 

-- Executing at 19/04/2016 12:32:01 +01:00 

-- Completed in 1 ms with result: SqlDataReader 



Closed connection at 19/04/2016 12:32:01 +01:00 

Opened connection at 19/04/2016 12:32:01 +01:00 

SELECT 
    [Extent2].[Id] AS [Id], 
    [Extent2].[Name] AS [Name] 
    FROM [dbo].[Products] AS [Extent1] 
    INNER JOIN [dbo].[Categories] AS [Extent2] ON [Extent1].[CategoryId] = [Extent2].[Id] 
    WHERE [Extent1].[Id] = @EntityKeyValue1 


-- EntityKeyValue1: '1' (Type = Int32, IsNullable = false) 

-- Executing at 19/04/2016 12:32:01 +01:00 

-- Completed in 1 ms with result: SqlDataReader 



Closed connection at 19/04/2016 12:32:01 +01:00 

Opened connection at 19/04/2016 12:32:01 +01:00 

SELECT 
    [Extent2].[Id] AS [Id], 
    [Extent2].[Title] AS [Title], 
    [Extent2].[Description] AS [Description], 
    [Extent2].[ShortDescription] AS [ShortDescription], 
    [Extent2].[Summary] AS [Summary], 
    [Extent2].[ShortSummary] AS [ShortSummary] 
    FROM [dbo].[Products] AS [Extent1] 
    INNER JOIN [dbo].[Details] AS [Extent2] ON [Extent1].[DetailId] = [Extent2].[Id] 
    WHERE [Extent1].[Id] = @EntityKeyValue1 


-- EntityKeyValue1: '1' (Type = Int32, IsNullable = false) 

-- Executing at 19/04/2016 12:32:01 +01:00 

-- Completed in 1 ms with result: SqlDataReader 



Closed connection at 19/04/2016 12:32:01 +01:00 

Opened connection at 19/04/2016 12:32:01 +01:00 

SELECT 
    [Join13].[Id1] AS [Id], 
    [Join13].[CompatibleMemory] AS [CompatibleMemory], 
    [Join13].[WhiteBalance] AS [WhiteBalance], 
    [Join13].[SceneModes] AS [SceneModes], 
    [Join13].[ShootingModes] AS [ShootingModes], 
    [Join13].[PhotoEffects] AS [PhotoEffects], 
    [Join13].[CameraPlayback] AS [CameraPlayback], 
    [Join13].[Tripod] AS [Tripod], 
    [Join13].[DirectPrinting] AS [DirectPrinting], 
    [Join13].[Colour] AS [Colour], 
    [Join13].[Id2] AS [Id1], 
    [Join13].[Id3] AS [Id2], 
    [Join13].[Id4] AS [Id3], 
    [Join13].[Id5] AS [Id4], 
    [Join13].[Id6] AS [Id5], 
    [Join13].[Id7] AS [Id6], 
    [Join13].[Id8] AS [Id7], 
    [Join13].[Id9] AS [Id8], 
    [Join13].[Id10] AS [Id9], 
    [Join13].[Id11] AS [Id10], 
    [Join13].[Id12] AS [Id11], 
    [Join13].[Id13] AS [Id12], 
    [Join13].[Id14] AS [Id13] 
    FROM [dbo].[Products] AS [Extent1] 
    INNER JOIN (SELECT [Extent2].[Id] AS [Id1], [Extent2].[CompatibleMemory] AS [CompatibleMemory], [Extent2].[WhiteBalance] AS [WhiteBalance], [Extent2].[SceneModes] AS [SceneModes], [Extent2].[ShootingModes] AS [ShootingModes], [Extent2].[PhotoEffects] AS [PhotoEffects], [Extent2].[CameraPlayback] AS [CameraPlayback], [Extent2].[Tripod] AS [Tripod], [Extent2].[DirectPrinting] AS [DirectPrinting], [Extent2].[Colour] AS [Colour], [Extent3].[Id] AS [Id2], [Extent4].[Id] AS [Id3], [Extent5].[Id] AS [Id4], [Extent6].[Id] AS [Id5], [Extent7].[Id] AS [Id6], [Extent8].[Id] AS [Id7], [Extent9].[Id] AS [Id8], [Extent10].[Id] AS [Id9], [Extent11].[Id] AS [Id10], [Extent12].[Id] AS [Id11], [Extent13].[Id] AS [Id12], [Extent14].[Id] AS [Id13], [Extent15].[Id] AS [Id14] 
     FROM    [dbo].[CameraAttributes] AS [Extent2] 
     LEFT OUTER JOIN [dbo].[CameraAttributeAudio] AS [Extent3] ON [Extent2].[Id] = [Extent3].[AttributeId] 
     LEFT OUTER JOIN [dbo].[CameraAttributeBattery] AS [Extent4] ON [Extent2].[Id] = [Extent4].[AttributeId] 
     LEFT OUTER JOIN [dbo].[CameraAttributeDimensions] AS [Extent5] ON [Extent2].[Id] = [Extent5].[AttributeId] 
     LEFT OUTER JOIN [dbo].[CameraAttributeDisplay] AS [Extent6] ON [Extent2].[Id] = [Extent6].[AttributeId] 
     LEFT OUTER JOIN [dbo].[CameraAttributeLightExposure] AS [Extent7] ON [Extent2].[Id] = [Extent7].[AttributeId] 
     LEFT OUTER JOIN [dbo].[CameraAttributeFlash] AS [Extent8] ON [Extent2].[Id] = [Extent8].[AttributeId] 
     LEFT OUTER JOIN [dbo].[CameraAttributeFocusing] AS [Extent9] ON [Extent2].[Id] = [Extent9].[AttributeId] 
     LEFT OUTER JOIN [dbo].[CameraAttributeInterface] AS [Extent10] ON [Extent2].[Id] = [Extent10].[AttributeId] 
     LEFT OUTER JOIN [dbo].[CameraAttributeLens] AS [Extent11] ON [Extent2].[Id] = [Extent11].[AttributeId] 
     LEFT OUTER JOIN [dbo].[CameraAttributeNetwork] AS [Extent12] ON [Extent2].[Id] = [Extent12].[AttributeId] 
     LEFT OUTER JOIN [dbo].[CameraAttributePicture] AS [Extent13] ON [Extent2].[Id] = [Extent13].[AttributeId] 
     LEFT OUTER JOIN [dbo].[CameraAttributeShutter] AS [Extent14] ON [Extent2].[Id] = [Extent14].[AttributeId] 
     LEFT OUTER JOIN [dbo].[CameraAttributeVideo] AS [Extent15] ON [Extent2].[Id] = [Extent15].[AttributeId]) AS [Join13] ON [Extent1].[AttributeId] = [Join13].[Id1] 
    WHERE [Extent1].[Id] = @EntityKeyValue1 


-- EntityKeyValue1: '2' (Type = Int32, IsNullable = false) 

-- Executing at 19/04/2016 12:32:01 +01:00 

-- Completed in 0 ms with result: SqlDataReader 



Closed connection at 19/04/2016 12:32:01 +01:00

出典

2016-04-19 r3plica

+4

すべての追加*またはあなたは、あなたが知っている、含める使用する –

+0

良い例があります。 – r3plica

+0

SPを使用する代わりに前のクエリをリファクタリングする方が好きです。パフォーマンス上の問題がある場合は、efクエリを強化して、自分の表現を見てみましょう。それ以降は何ができるかを決定してください。 –

答えて

1

することはできEager LoadこのようInclude<T>

を使用してEFでの参加主体：私はそれがなかった少しの部分に私のクエリを分離して見ることができました*

using (var context = new BloggingContext()) 
{ 
    // Load all blogs and related posts 
    var blogs1 = context.Product 
         .Include(p => p.Category) 
         //more included properties 
         .Where(....) //filtering       
         .ToList(); //ToList() eagerly loads the Included entites 
}

出典

2016-04-19 11:00:59

+0

私はEagerを使用しています大部分の時間を読み込んでいますが、関連するすべてのエンティティを返す必要があるため、ここでどのように役立つのかは分かりません。（ – r3plica

+0

あなたはオブジェクトの関係を知らないのですか？これは動的に行うのですか？また、すべての関連エンティティを取得しようとしている理由を説明することもできますか？EFエンティティにデータベースのほとんどを読み込むことは、通常は悪い考えです。 –

+0

ええ、通常は悪い考えですが、 – r3plica

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