我有一个查询。当我第一次运行它时，它会立即返回。大约一秒钟。然后，当我按F5键再次运行完全相同的东西而没有任何更改时，现在它运行缓慢，耗时超过30秒。然后，如果我再次按下F5，它将再次立即运行。依此类推，并且保持交替。
以下是查询：
IF @LocalDetailLevel = 'master'
BEGIN
SELECT * FROM (
SELECT DISTINCT
Master_Item
,'--' Item_Number
,'--' Color_Code
,Description
,'--' Color_Description
,SUM(Unit_Retail) Sum_Unit_Retail
,AVG(Unit_Retail) Avg_Unit_Retail
,SUM(Unit_MarkDown) Sum_Unit_MarkDown
,AVG(Unit_MarkDown) Avg_Unit_MarkDown
,AVG(Unit_MarkDown_Percent) Avg_Unit_MarkDown_Percent
,SUM(Sell_Price) Sum_Sell_Price
,AVG(Sell_Price) Avg_Sell_Price
,SUM(Discount_Value) Sum_Discount_Value
,AVG(Discount_Value) Avg_Discount_Value
,AVG(Unit_Discount_Value_Percent) Avg_Discount_Value_Percent
,SUM(Sale_Price) Sum_Sale_Price
,AVG(Sale_Price) Avg_Sale_Price
,SUM(Royalty_Cost) Sum_Royalty_Cost
,AVG(Royalty_Cost) Avg_Royalty_Cost
,AVG(Unit_Royalty_Cost_Percent) Avg_Royalty_Cost_Percent
,SUM(Item_Cost) Sum_Item_Cost
,AVG(Item_Cost) Avg_Item_Cost
,AVG(Unit_Item_Cost_Percent) Avg_Item_Cost_Percent
,SUM(Order_Gross_Profit_Minus_Discounts_And_Royalty_And_Freight) Sum_Gross_Profit
,AVG(Order_Gross_Profit_Minus_Discounts_And_Royalty_And_Freight) Avg_Gross_Profit
,AVG(Order_Gross_Profit_Minus_Discounts_And_Royalty_And_Freight_Percent) Avg_Gross_Profit_Percent
,MAX(Quantity_Invoiced+Quantity_Allocated) Max_Quantity
,SUM(Quantity_Invoiced+Quantity_Allocated) Total_Units
,COUNT(DISTINCT Customer_Purchase_Order_Number ) Total_Orders_Cont
,-1 Percent_Of_Orders_Cont
,SUM(Quantity_Invoiced+Quantity_Allocated) / COUNT(DISTINCT Customer_Purchase_Order_Number) Average_Order_Quantity
,SUM(Quantity_Returned) Total_Units_Returned
,MAX(Quantity_Returned) Max_Quantity_Returned
,SUM(Quantity_Returned)
/NULLIF(SUM(Quantity_Invoiced+Quantity_Allocated) ,0) Return_Percentage
,SUM(CASE WHEN F.Line_Status = 'CANCELLED' THEN Quantity_Ordered ELSE 0 END) Cancelled_Count
,SUM(CASE WHEN F.Line_Status = 'CANCELLED' THEN Quantity_Ordered ELSE 0 END)
/ NULLIF(SUM(Quantity_Ordered) ,0) Cancelled_Count_Percent
,SUM(CASE WHEN (Tags not like '%customerrequested_cancel%' and Tags not like '%ia_cancel%' and (FulfillmentState like 'partial%' or FinancialState like 'partial%')) THEN Short_Shipped ELSE 0 END) Short_Shipped_Count
,SUM(CASE WHEN (Tags not like '%customerrequested_cancel%' and Tags not like '%ia_cancel%' and (FulfillmentState like 'partial%' or FinancialState like 'partial%')) THEN Short_Shipped ELSE 0 END)
/ NULLIF(SUM(Quantity_Ordered) ,0) Short_Shipped_Count_Percent
FROM
FinalEcomTable F
WHERE
1=1
AND (F.Company_Code = @LocalCompanyCode OR @LocalCompanyCode IS NULL)
AND (F.Division_Code = @LocalDivisionCode OR @LocalDivisionCode IS NULL)
AND F.Coal_Date BETWEEN @LocalFromDate AND DATEADD(dayofyear, 1, @LocalToDate)
GROUP BY Master_Item, Item_Number, Color_Code, Description, Color_Description
) T
ORDER BY
CASE WHEN @LocalOrderBy = 'ordered' THEN Total_Units END DESC,
CASE WHEN @LocalOrderBy = 'returned' THEN Total_Units_Returned END DESC,
CASE WHEN @LocalOrderBy = 'cancelled' THEN Cancelled_Count END DESC,
CASE WHEN @LocalOrderBy = 'shortshipped' THEN Short_Shipped_Count END DESC
--OPTION (RECOMPILE)
END
IF @LocalDetailLevel = 'size'
BEGIN
SELECT * FROM (
SELECT DISTINCT
Master_Item
,Item_Number
,'--' Color_Code
,Description
,'--' Color_Description
,SUM(Unit_Retail) Sum_Unit_Retail
,AVG(Unit_Retail) Avg_Unit_Retail
,SUM(Unit_MarkDown) Sum_Unit_MarkDown
,AVG(Unit_MarkDown) Avg_Unit_MarkDown
,AVG(Unit_MarkDown_Percent) Avg_Unit_MarkDown_Percent
,SUM(Sell_Price) Sum_Sell_Price
,AVG(Sell_Price) Avg_Sell_Price
,SUM(Discount_Value) Sum_Discount_Value
,AVG(Discount_Value) Avg_Discount_Value
,AVG(Unit_Discount_Value_Percent) Avg_Discount_Value_Percent
,SUM(Sale_Price) Sum_Sale_Price
,AVG(Sale_Price) Avg_Sale_Price
,SUM(Royalty_Cost) Sum_Royalty_Cost
,AVG(Royalty_Cost) Avg_Royalty_Cost
,AVG(Unit_Royalty_Cost_Percent) Avg_Royalty_Cost_Percent
,SUM(Item_Cost) Sum_Item_Cost
,AVG(Item_Cost) Avg_Item_Cost
,AVG(Unit_Item_Cost_Percent) Avg_Item_Cost_Percent
,SUM(Order_Gross_Profit_Minus_Discounts_And_Royalty_And_Freight) Sum_Gross_Profit
,AVG(Order_Gross_Profit_Minus_Discounts_And_Royalty_And_Freight) Avg_Gross_Profit
,AVG(Order_Gross_Profit_Minus_Discounts_And_Royalty_And_Freight_Percent) Avg_Gross_Profit_Percent
,MAX(Quantity_Invoiced+Quantity_Allocated) Max_Quantity
,SUM(Quantity_Invoiced+Quantity_Allocated) Total_Units
,COUNT(DISTINCT Customer_Purchase_Order_Number) Total_Orders_Cont
,-1 Percent_Of_Orders_Cont
,SUM(Quantity_Invoiced+Quantity_Allocated) / COUNT(DISTINCT Customer_Purchase_Order_Number) Average_Order_Quantity
,SUM(Quantity_Returned) Total_Units_Returned
,MAX(Quantity_Returned) Max_Quantity_Returned
,SUM(Quantity_Returned)
/NULLIF(SUM(Quantity_Invoiced+Quantity_Allocated) ,0) Return_Percentage
,SUM(CASE WHEN F.Line_Status = 'CANCELLED' THEN Quantity_Ordered ELSE 0 END) Cancelled_Count
,SUM(CASE WHEN F.Line_Status = 'CANCELLED' THEN Quantity_Ordered ELSE 0 END)
/ NULLIF(SUM(Quantity_Ordered) ,0) Cancelled_Count_Percent
,SUM(CASE WHEN (Tags not like '%customerrequested_cancel%' and Tags not like '%ia_cancel%' and (FulfillmentState like 'partial%' or FinancialState like 'partial%')) THEN Short_Shipped ELSE 0 END) Short_Shipped_Count
,SUM(CASE WHEN (Tags not like '%customerrequested_cancel%' and Tags not like '%ia_cancel%' and (FulfillmentState like 'partial%' or FinancialState like 'partial%')) THEN Short_Shipped ELSE 0 END)
/ NULLIF(SUM(Quantity_Ordered) ,0) Short_Shipped_Count_Percent
FROM
FinalEcomTable F
WHERE
1=1
AND (F.Company_Code = @LocalCompanyCode OR @LocalCompanyCode IS NULL)
AND (F.Division_Code = @LocalDivisionCode OR @LocalDivisionCode IS NULL)
AND F.Coal_Date BETWEEN @LocalFromDate AND DATEADD(dayofyear, 1, @LocalToDate)
GROUP BY Master_Item, Item_Number, Color_Code, Description, Color_Description
) T
ORDER BY
CASE WHEN @LocalOrderBy = 'ordered' THEN Total_Units END DESC,
CASE WHEN @LocalOrderBy = 'returned' THEN Total_Units_Returned END DESC,
CASE WHEN @LocalOrderBy = 'cancelled' THEN Cancelled_Count END DESC,
CASE WHEN @LocalOrderBy = 'shortshipped' THEN Short_Shipped_Count END DESC
--OPTION (RECOMPILE)
END
IF @LocalDetailLevel = 'color'
BEGIN
SELECT * FROM (
SELECT DISTINCT
Master_Item
,Item_Number
,Color_Code
,Description
,Color_Description
,SUM(Unit_Retail) Sum_Unit_Retail
,AVG(Unit_Retail) Avg_Unit_Retail
,SUM(Unit_MarkDown) Sum_Unit_MarkDown
,AVG(Unit_MarkDown) Avg_Unit_MarkDown
,AVG(Unit_MarkDown_Percent) Avg_Unit_MarkDown_Percent
,SUM(Sell_Price) Sum_Sell_Price
,AVG(Sell_Price) Avg_Sell_Price
,SUM(Discount_Value) Sum_Discount_Value
,AVG(Discount_Value) Avg_Discount_Value
,AVG(Unit_Discount_Value_Percent) Avg_Discount_Value_Percent
,SUM(Sale_Price) Sum_Sale_Price
,AVG(Sale_Price) Avg_Sale_Price
,SUM(Royalty_Cost) Sum_Royalty_Cost
,AVG(Royalty_Cost) Avg_Royalty_Cost
,AVG(Unit_Royalty_Cost_Percent) Avg_Royalty_Cost_Percent
,SUM(Item_Cost) Sum_Item_Cost
,AVG(Item_Cost) Avg_Item_Cost
,AVG(Unit_Item_Cost_Percent) Avg_Item_Cost_Percent
,SUM(Order_Gross_Profit_Minus_Discounts_And_Royalty_And_Freight) Sum_Gross_Profit
,AVG(Order_Gross_Profit_Minus_Discounts_And_Royalty_And_Freight) Avg_Gross_Profit
,AVG(Order_Gross_Profit_Minus_Discounts_And_Royalty_And_Freight_Percent) Avg_Gross_Profit_Percent
,MAX(Quantity_Invoiced+Quantity_Allocated) Max_Quantity
,SUM(Quantity_Invoiced+Quantity_Allocated) Total_Units
,COUNT(DISTINCT Customer_Purchase_Order_Number) Total_Orders_Cont
,-1 Percent_Of_Orders_Cont
,SUM(Quantity_Invoiced+Quantity_Allocated) / COUNT(DISTINCT Customer_Purchase_Order_Number) Average_Order_Quantity
,SUM(Quantity_Returned) Total_Units_Returned
,MAX(Quantity_Returned) Max_Quantity_Returned
,SUM(Quantity_Returned)
/NULLIF(SUM(Quantity_Invoiced+Quantity_Allocated) ,0) Return_Percentage
,SUM(CASE WHEN F.Line_Status = 'CANCELLED' THEN Quantity_Ordered ELSE 0 END) Cancelled_Count
,SUM(CASE WHEN F.Line_Status = 'CANCELLED' THEN Quantity_Ordered ELSE 0 END)
/ NULLIF(SUM(Quantity_Ordered) ,0) Cancelled_Count_Percent
,SUM(CASE WHEN (Tags not like '%customerrequested_cancel%' and Tags not like '%ia_cancel%' and (FulfillmentState like 'partial%' or FinancialState like 'partial%')) THEN Short_Shipped ELSE 0 END) Short_Shipped_Count
,SUM(CASE WHEN (Tags not like '%customerrequested_cancel%' and Tags not like '%ia_cancel%' and (FulfillmentState like 'partial%' or FinancialState like 'partial%')) THEN Short_Shipped ELSE 0 END)
/ NULLIF(SUM(Quantity_Ordered) ,0) Short_Shipped_Count_Percent
FROM
FinalEcomTable F
WHERE
1=1
AND (F.Company_Code = @LocalCompanyCode OR @LocalCompanyCode IS NULL)
AND (F.Division_Code = @LocalDivisionCode OR @LocalDivisionCode IS NULL)
AND F.Coal_Date BETWEEN @LocalFromDate AND DATEADD(dayofyear, 1, @LocalToDate)
GROUP BY Master_Item, Item_Number, Color_Code, Description, Color_Description
) T
ORDER BY
CASE WHEN @LocalOrderBy = 'ordered' THEN Total_Units END DESC,
CASE WHEN @LocalOrderBy = 'returned' THEN Total_Units_Returned END DESC,
CASE WHEN @LocalOrderBy = 'cancelled' THEN Cancelled_Count END DESC,
CASE WHEN @LocalOrderBy = 'shortshipped' THEN Short_Shipped_Count END DESC
--OPTION (RECOMPILE)
END
我假设这与编译器试图优化我的查询有关。我该如何使它针对“ @LocalDetailLevel ='color'”进行优化，因为这将在90％的时间内使用？
如果有人可以告诉我如何添加
OPTION (OPTIMIZE FOR (@LocalDetailLevel = 'color'))
对于我的存储过程，我认为这可以解决很多问题。我的存储过程是
GO
/****** Object: StoredProcedure [dbo].[Z_N_FinalEcomDashAllItems] Script Date: 9/24/2019 12:20:31 PM ******/
SET ANSI_NULLS ON
GO
SET QUOTED_IDENTIFIER ON
GO
-- =============================================
-- Author: <Author,,Name>
-- Create date: <Create Date,,>
-- Description: <Description,,>
-- =============================================
ALTER PROC [dbo].[ZZ_N_FinalEcomDashAllItems]
@CompanyCode VARCHAR(5),
@DivisionCode VARCHAR(5),
@FromDate DATETIME,
@ToDate DATETIME,
@DetailLevel VARCHAR(50),
@OrderBy VARCHAR(50)
AS
DECLARE @LocalCompanyCode VARCHAR(5)
SET @LocalCompanyCode = @CompanyCode
DECLARE @LocalDivisionCode VARCHAR(5)
SET @LocalDivisionCode = @DivisionCode
DECLARE @LocalFromDate DATETIME
SET @LocalFromDate = @FromDate
DECLARE @LocalToDate DATETIME
SET @LocalToDate = @ToDate
DECLARE @LocalDetailLevel VARCHAR(50)
SET @LocalDetailLevel = @DetailLevel
DECLARE @LocalOrderBy VARCHAR(50)
SET @LocalOrderBy = @OrderBy
BEGIN
... The query from above
END
我试图这样添加它
BEGIN
... The query from above
OPTION (OPTIMIZE FOR (@LocalDetailLevel = 'color'))
END
但是它说“关键字'OPTION'附近的语法不正确。”
如果我删除了IF子句之后的所有BEGIN / END，并且在整个过程中只有一个开始结束，那么我会在OPTIMIZE FOR子句中指定“变量” @LocalDetailLevel”，但未使用在查询中。”