Sql 关于多键表的CTE索引建议

我有一个在ChargeID和CustomerID上键入的视图（费用可以在多个客户之间分摊）。该视图由2个表组成（此处高度简化，实际表中每个表约有40列）：

视图只是将这两者连接在一起：

CREATE VIEW vwBASEChargeChargeShareCustomer AS
Select ParentChargeID, b.* from tblCharge a inner join tblChargeShare b on a.ChargeID = b.ChargeID

然后，我有一个CTE，用于获取家长的次级费用：

WITH RCTE AS
(
SELECT  ParentChargeId, ChargeID, 1 AS Lvl, ISNULL(TotalAmount, 0) as TotalAmount,  ISNULL(TaxAmount, 0) as TaxAmount,  
ISNULL(DiscountAmount, 0) as DiscountAmount, CustomerID, ChargeID as MasterChargeID
FROM vwBASEChargeChargeShareCustomer Where ParentChargeID is NULL

UNION ALL

SELECT rh.ParentChargeID, rh.ChargeID, Lvl+1 AS Lvl, ISNULL(rh.TotalAmount, 0),  ISNULL(rh.TaxAmount, 0),  ISNULL(rh.DiscountAmount, 0) , rh.CustomerID 
, rc.MasterChargeID 
FROM vwBASEChargeChargeShareCustomer rh
INNER JOIN RCTE rc ON rh.PArentChargeID = rc.ChargeID and rh.CustomerID = rc.CustomerID )

Select MasterChargeID, CustomerID, ParentChargeID, ChargeID, TotalAmount, TaxAmount, DiscountAmount , Lvl
FROM  RCTE r 

因此，CTE在CustomerID和ChargeID=ParentChargeID上加入

这很有效，但在大型数据集（数百万的费用）上表现不佳

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索引表（或视图）以获得最佳性能的最佳方法是什么？（SQL 2008R2及更高版本）

到目前为止，您尝试了什么？显然，您已经尝试在ChargeID和CustomerID上创建索引，但您对性能不满意？您尝试运行执行计划了吗？抱歉，是的，我在表上对tblCharge.ChargeID、tblCharge.ParentChargeID、tblChargeShare.ChargeID和tblChargeShare.CustomerID有单独的索引。表聚集在哪些列上？tblCharge.ChargeID和tblChargeShare.ChargeShareID

WITH RCTE AS
(
SELECT  ParentChargeId, ChargeID, 1 AS Lvl, ISNULL(TotalAmount, 0) as TotalAmount,  ISNULL(TaxAmount, 0) as TaxAmount,  
ISNULL(DiscountAmount, 0) as DiscountAmount, CustomerID, ChargeID as MasterChargeID
FROM vwBASEChargeChargeShareCustomer Where ParentChargeID is NULL

UNION ALL

SELECT rh.ParentChargeID, rh.ChargeID, Lvl+1 AS Lvl, ISNULL(rh.TotalAmount, 0),  ISNULL(rh.TaxAmount, 0),  ISNULL(rh.DiscountAmount, 0) , rh.CustomerID 
, rc.MasterChargeID 
FROM vwBASEChargeChargeShareCustomer rh
INNER JOIN RCTE rc ON rh.PArentChargeID = rc.ChargeID and rh.CustomerID = rc.CustomerID )

Select MasterChargeID, CustomerID, ParentChargeID, ChargeID, TotalAmount, TaxAmount, DiscountAmount , Lvl
FROM  RCTE r