私はSQLクエリを最適化しており、このクエリを改善する方法についてのアドバイスを歓迎しています。これは、カテゴリに商品を読み込むためのnopcommerceオープンソースソリューションの一部です。現時点では、ページの読み込みに8〜9秒かかりますが、可能であれば3〜4秒にします。
ここに質問があります、私はそれをどのように改善することができるかすべてのアドバイスを歓迎しています：
ALTER PROCEDURE [dbo].[Nop_ProductLoadForCategory]
(
@CategoryID int = 0,
@manufacturerId int = 0,
@PageIndex int = 0,
@PageSize int = 2147483644,
@TotalRecords int = null OUTPUT,
@VehiclesYear varchar(4) = null,
@VehiclesMake varchar(20) = null,
@VehiclesModel varchar(50) =null,
@VehiclesSubmodel varchar(50) =null,
@Universal bit = 1
)
AS
SET NOCOUNT ON
BEGIN
--paging
DECLARE @PageLowerBound int
DECLARE @PageUpperBound int
DECLARE @RowsToReturn int
SET @RowsToReturn = @PageSize * (@PageIndex + 1)
SET @PageLowerBound = @PageSize * @PageIndex
SET @PageUpperBound = @PageLowerBound + @PageSize + 1
CREATE TABLE #DisplayOrderTmp
(
[ID] int IDENTITY (1, 1) NOT NULL,
[ProductID] int NOT NULL
)
if isnull(@manufacturerId, 0) = 0
if @Universal = 1
INSERT INTO #DisplayOrderTmp ([ProductID])
select a.ProductID from (
SELECT TOP 100 PERCENT
row_number() over(order by pv.DisplayOrder) as ID,
p.ProductID
FROM dbo.Nop_Product p with (NOLOCK)
INNER JOIN Nop_Product_Category_Mapping pcm with (NOLOCK) ON p.ProductID=pcm.ProductID
LEFT OUTER JOIN Nop_ProductVariant pv with (NOLOCK) ON pv.ProductID = p.ProductId
left outer join WC_ProductVehicleApplications pva with (NOLOCK) on pva.ProductID=p.ProductId
left outer join [WC_Vehicles] v with (NOLOCK) on pva.VehicleID = v.VehicleID
WHERE
(pcm.CategoryID=@CategoryID)
AND (p.Published = 1)
AND (p.Deleted=0)
and (((@VehiclesYear between [YEAR] and YearEnd or @VehiclesYear is null)
and ([Make] = @VehiclesMake or @VehiclesMake is null)
and ([Model] = @VehiclesModel or @VehiclesModel is null)
and ([SubModel] = @VehiclesSubmodel or @VehiclesSubmodel is null))
or p.IsUniversal = 1)
) a
GROUP BY
ProductID
ORDER BY
min([ID])
else
INSERT INTO #DisplayOrderTmp ([ProductID])
select a.ProductID from (
SELECT TOP 100 PERCENT
row_number() over(order by pv.DisplayOrder) as ID,
p.ProductID
FROM dbo.Nop_Product p with (NOLOCK)
INNER JOIN Nop_Product_Category_Mapping pcm with (NOLOCK) ON p.ProductID=pcm.ProductID
LEFT OUTER JOIN Nop_ProductVariant pv with (NOLOCK) ON pv.ProductID = p.ProductId
left outer join WC_ProductVehicleApplications pva with (NOLOCK) on pva.ProductID=p.ProductId
left outer join [WC_Vehicles] v with (NOLOCK) on pva.VehicleID = v.VehicleID
WHERE
(pcm.CategoryID=@CategoryID)
AND (p.Published = 1)
AND (p.Deleted=0)
and (((@VehiclesYear between [YEAR] and YearEnd or @VehiclesYear is null)
and ([Make] = @VehiclesMake or @VehiclesMake is null)
and ([Model] = @VehiclesModel or @VehiclesModel is null)
and ([SubModel] = @VehiclesSubmodel or @VehiclesSubmodel is null))
and p.IsUniversal <> 1)
) a
GROUP BY
ProductID
ORDER BY
min([ID])
else
INSERT INTO #DisplayOrderTmp ([ProductID])
select a.ProductID from (
SELECT TOP 100 PERCENT
row_number() over(order by pv.DisplayOrder) as ID,
p.ProductID
FROM dbo.Nop_Product p with (NOLOCK)
INNER JOIN Nop_Product_Category_Mapping pcm with (NOLOCK) ON p.ProductID=pcm.ProductID
LEFT OUTER JOIN Nop_ProductVariant pv with (NOLOCK) ON pv.ProductID = p.ProductId
left outer join WC_ProductVehicleApplications pva with (NOLOCK) on pva.ProductID=p.ProductId
left outer join [WC_Vehicles] v with (NOLOCK) on pva.VehicleID = v.VehicleID
WHERE
(pcm.CategoryID=@CategoryID)
AND (p.Published = 1)
AND (p.Deleted=0)
and (((@VehiclesYear between [YEAR] and YearEnd or @VehiclesYear is null)
and ([Make] = @VehiclesMake or @VehiclesMake is null)
and ([Model] = @VehiclesModel or @VehiclesModel is null)
and ([SubModel] = @VehiclesSubmodel or @VehiclesSubmodel is null))
or p.IsUniversal = 1)
) a
GROUP BY
ProductID
ORDER BY
min([ID])
--CREATE UNIQUE NONCLUSTERED INDEX IX_1 on #DisplayOrderTmp ([ID], [ProductID])
--CREATE TABLE #PageIndex
--(
-- [IndexID] int IDENTITY (1, 1) NOT NULL,
-- [ProductID] int NOT NULL
--)
--INSERT INTO #PageIndex ([ProductID])
--SELECT TOP 100 PERCENT
-- Row_Number() Over(Order By min([ID])) as RowNum, ProductID
--FROM #DisplayOrderTmp with (NOLOCK)
--GROUP BY ProductID
--ORDER BY min([ID])
--select ProductID
--FROM #DisplayOrderTmp with (NOLOCK)
--GROUP BY ProductID
--SELECT
-- ProductID
--FROM
-- #DisplayOrderTmp with (NOLOCK)
--GROUP BY
-- ProductID
--ORDER BY
-- min([ID])
--select ProductID from #DisplayOrderTmp with (NOLOCK) --order by min([ID])
--CREATE UNIQUE NONCLUSTERED INDEX IX_2 on #PageIndex ([IndexID], [ProductID])
--total records
SET @TotalRecords = @@rowcount
SET ROWCOUNT @RowsToReturn
--DROP TABLE #DisplayOrderTmp
--return
SELECT
p.ProductId,
p.Name,
p.ShortDescription,
p.FullDescription,
p.AdminComment,
p.TemplateId,
p.ShowOnHomePage,
p.MetaKeywords,
p.MetaDescription,
p.MetaTitle,
p.SEName,
p.AllowCustomerReviews,
p.AllowCustomerRatings,
p.RatingSum,
p.TotalRatingVotes,
p.Published,
p.Deleted,
p.CreatedOn,
p.UpdatedOn,
p.[IsUniversal],
p.FullDescriptionSave
FROM
--(SELECT TOP 100 PERCENT
-- Row_Number() Over(Order By min([ID])) as RowNum, ProductID
--FROM #DisplayOrderTmp with (NOLOCK)
--GROUP BY ProductID
--ORDER BY min([ID])
--) [pi]
--inner join
#DisplayOrderTmp [pi]
--on dot.ProductID = [pi].ProductID
INNER JOIN Nop_Product p with (NOLOCK) on p.ProductID = [pi].ProductID
INNER JOIN Nop_Product_Category_Mapping pcm with (NOLOCK) ON p.ProductID=pcm.ProductID
WHERE
--[pi].IndexID > @PageLowerBound AND
--[pi].IndexID < @PageUpperBound
[pi].ID > @PageLowerBound AND
[pi].ID < @PageUpperBound
ORDER BY
[pi].ID
SET ROWCOUNT 0
DROP TABLE #DisplayOrderTmp
END
よろしくお願いします、ラツィオ