Bir tablo değişkenim var ve ona "Insert Into - Select" deyimini kullanarak bazı değerler ekliyorum. Seçim, birkaç birleştirmenin birleşimidir ve ayrı olarak çalıştırıldığında 3 saniye sürer. Sorun, bütün kodun yürütülmesi için 3-4 dakika sürmesidir. Bunun için özel bir neden var mı diye merak ediyorum.T-SQL Insert - Tablo içinde değişken çok yavaş
Bu benim tablo değişken beyanıdır:
DECLARE @Result TABLE
(
ProductID NVARCHAR(25) PRIMARY KEY
,ProductName NVARCHAR(100)
,ProductCategoryID TINYINT
,ProductCategory NVARCHAR(50)
,ProductSubCategoryID TINYINT
,ProductSubCategory NVARCHAR(50)
,BrandID TINYINT
,Brand NVARCHAR(50)
)
Sanırım bazı verilerle başlatmak bir başka tablo değişkeni var ve bu onun yapısı şöyledir:
DECLARE @TempTable TABLE
(
ProtoSurveyID INT,
ProductID NVARCHAR(25) PRIMARY KEY
)
ve aşağıdaki kodu benim sorun bildirimi (seçime ekle):
INSERT INTO @Result (ProductID,ProductName,ProductCategoryID,ProductCategory,ProductSubCategoryID,ProductSubCategory,BrandID,Brand)
SELECT
Products.ProductID AS ProductID
,Products.ProductName AS ProductName
,ProductCategories.ProductCategoryID AS ProductCategoryID
,ProductCategories.ProductCategory AS ProductCategory
,ProductSubCategories.ProductSubCategoryID AS ProductSubCategoryID
,ProductSubCategories.ProductSubCategory AS ProductSubCategory
,Brands.BrandID AS BrandID
,Brands.Brand AS Brand
FROM
(
SELECT
CAST(A.Col001 AS tinyint) AS ProductCategoryID
,CAST(A.Col002 AS tinyint) AS BrandID
,CAST(A.Col003 AS nvarchar(25)) AS ProductID
,CAST(A.Col004 AS nvarchar(100)) AS ProductName
,CAST(A.Col006 As tinyint) AS ProductSubCategoryID
,B.ProtoSurveyID
FROM DataSetsMaterializedDataSqlvariant A
INNER JOIN @TempTable B
ON B.ProductID=CAST(A.Col003 AS nvarchar(25))
WHERE DataSetsMaterializedInternalRowsetID = 3
) Products
INNER JOIN
(
SELECT CAST(A.Col001 AS tinyint) AS BrandID
, CAST(A.Col002 AS nvarchar(50)) AS Brand
FROM DataSetsMaterializedDataSqlvariant A
WHERE DataSetsMaterializedInternalRowsetID = 1
)Brands On Products.BrandID=Brands.BrandID
INNER JOIN
(
SELECT CAST(A.Col001 AS tinyint) AS ProductCategoryID
,CAST(A.Col002 AS nvarchar(50)) AS ProductCategory
FROM DataSetsMaterializedDataSqlvariant A
WHERE DataSetsMaterializedInternalRowsetID = 2
) ProductCategories On Products.ProductCategoryID=ProductCategories.ProductCategoryID
INNER JOIN
(
SELECT CAST(A.Col001 AS tinyint) AS ProductSubCategoryID
, CAST(A.Col002 AS nvarchar(50)) AS ProductSubCategory
FROM DataSetsMaterializedDataSqlvariant A
WHERE DataSetsMaterializedInternalRowsetID = 11
) ProductSubCategories on Products.ProductSubCategoryID=ProductSubCategories.ProductSubCategoryID
Daha önce de söylediğim gibi, Sert çizgi sorgu, aksi takdirde 3 saniye sürüyor - çok uzun bir süre.
DÜZENLEME: İşte yürütme planım - maliyetin çoğu tablo taramasıdır, ancak ekleme yapıldığında neden bu kadar çok zaman alır ve onsuz hızlı olur?
CREATE FUNCTION [dbo].[fn_XxCustom_RetailAudits_GetProductsForFilter]
(
@SecurityObjectUserID BIGINT
)
RETURNS TABLE
AS
RETURN
WITH CTE(ProtoSurveyID,ProductID) AS
(
SELECT DISTINCT CAST(B.ProtoSurveyID AS INT)
,CAST(A.Col002 AS NVARCHAR(25)) AS ProductID
FROM DataSetsMaterializedDataSqlvariant A
JOIN SurveyInstances B ON A.Col001=B.SurveyInstanceID AND CAST(B.ProtoSurveyID AS INT) IN (SELECT ProtoSurveyID FROM dbo.fn_Filter_GetProtoSurveysAllowedShort(@SecurityObjectUserID, 'CLIENTACCESS',NULL))
WHERE DataSetsMaterializedInternalRowsetID = 5
)
SELECT
Products.ProductID AS ProductID
,Products.ProductName AS ProductName
,ProductCategories.ProductCategoryID AS ProductCategoryID
,ProductCategories.ProductCategory AS ProductCategory
,ProductSubCategories.ProductSubCategoryID AS ProductSubCategoryID
,ProductSubCategories.ProductSubCategory AS ProductSubCategory
,Brands.BrandID AS BrandID
,Brands.Brand AS Brand
FROM
(
SELECT
CAST(A.Col001 AS tinyint) AS ProductCategoryID
,CAST(A.Col002 AS tinyint) AS BrandID
,CAST(A.Col003 AS nvarchar(25)) AS ProductID
,CAST(A.Col004 AS nvarchar(100)) AS ProductName
,CAST(A.Col006 As tinyint) AS ProductSubCategoryID
,B.ProtoSurveyID
FROM CTE B
INNER JOIN DataSetsMaterializedDataSqlvariant A
ON B.ProductID=CAST(A.Col003 AS nvarchar(25))
WHERE DataSetsMaterializedInternalRowsetID = 3
) Products
INNER JOIN
(
SELECT CAST(A.Col001 AS tinyint) AS BrandID
,CAST(A.Col002 AS nvarchar(50)) AS Brand
FROM DataSetsMaterializedDataSqlvariant A
WHERE DataSetsMaterializedInternalRowsetID = 1
)Brands On Products.BrandID=Brands.BrandID
INNER JOIN
(
SELECT CAST(A.Col001 AS tinyint) AS ProductCategoryID
,CAST(A.Col002 AS nvarchar(50)) AS ProductCategory
FROM DataSetsMaterializedDataSqlvariant A
WHERE DataSetsMaterializedInternalRowsetID = 2
) ProductCategories On Products.ProductCategoryID=ProductCategories.ProductCategoryID
INNER JOIN
(
SELECT CAST(A.Col001 AS tinyint) AS ProductSubCategoryID
,CAST(A.Col002 AS nvarchar(50)) AS ProductSubCategory
FROM DataSetsMaterializedDataSqlvariant A
WHERE DataSetsMaterializedInternalRowsetID = 11
) ProductSubCategories on Products.ProductSubCategoryID=ProductSubCategories.ProductSubCategoryID
GO
yavaşça tekrar çalıştırır:
takip benim yeni satır içi fonksiyonudur. Herhangi bir fikir nasıl optimize edilir?
Query Analyzer'ın "planını açıkla" düğmesini kullanarak zamanın nerede çekildiğini gösterin. –
@JeffWatkins Sorularıma planım ile ekran görüntüsü ekleyeceğim. – gotqn
Geçici masaya seçerseniz ne olur? –