我正在寻找一些提示/技巧来提高插入到表中的多个SELECT语句的存储过程的性能。我加入的所有对象都已编入索引。提高sql查询的性能
我相信这个存储过程需要近一个小时运行的原因是因为有多个SELECT语句中使用以下两种观点:rvw_FinancialLineItemValues和rvw_FinancialLineItems
而且,每个SELECT语句使用特定的硬编码值的账户号码, LineItemTypeID以及来自上述两个视图的其他字段值。
如果我创建一个临时表,它可以一次获取这些SELECT语句所需的所有数据,然后在我的连接中使用此临时表,而它会提高性能吗?
是否有其他方法可以提高性能和可管理性?
SELECT
@scenarioid,
@portfolioid,
pa.Id,
pa.ExternalID,
(select value from fn_split(i.AccountNumber,'.') where id = 1),
ac.[Description],
cl.Name,
NullIf((select value from fn_split(i.AccountNumber,'.') where id = 2),''),
NullIf((select value from fn_split(i.AccountNumber,'.') where id = 3),''),
ty.Name,
v.[Date],
cast(SUM(v.Amount) as decimal(13,2)),
GETDATE()
FROM rvw_FinancialLineItems i
INNER JOIN rvw_Scenarios sc
ON i.ScenarioId = sc.Id
AND sc.Id = @scenarioid
AND sc.PortfolioId = @portfolioid
INNER JOIN #pa AS pa
ON i.PropertyAssetID = pa.Id
INNER JOIN rvw_FinancialLineItemValues v
ON i.ScenarioId = v.ScenarioId
AND i.PropertyAssetID = v.PropertyAssetID
AND i.Id = v.FinancialLineItemId
AND ((i.BusinessEntityTypeId = 11
AND i.LineItemTypeId = 3002)
OR (i.LineItemTypeId IN (2005, 2010, 2003, 2125, 2209, 5012, 6001)
AND i.ModeledEntityKey = 1))
AND i.AccountNumber not in ('401ZZ','403ZZ')
AND i.AccountNumber not in ('401XX')
AND i.AccountNumber not in ('40310','41110','42010','41510','40190','40110') -- exclude lease-level revenues selected below
AND v.[Date] BETWEEN @fromdate AND
CASE
WHEN pa.AnalysisEnd < @todate THEN pa.AnalysisEnd
ELSE @todate
END
AND v.ResultSet IN (0, 4)
INNER JOIN rvw_Portfolios po
ON po.Id = @portfolioid
INNER JOIN Accounts ac
ON po.ChartOfAccountId = ac.ChartOfAccountId
AND i.AccountNumber = ac.AccountNumber
AND ac.HasSubAccounts = 0
INNER JOIN fn_LookupClassTypes() cl
ON ac.ClassTypeId = cl.Id
INNER JOIN LineItemTypes ty
ON ac.LineItemTypeId = ty.Id
LEFT JOIN OtherRevenues r
ON i.PropertyAssetID = r.PropertyAssetID
AND i.AccountNumber = r.AccountID
AND v.[Date] BETWEEN r.[Begin] AND r.[End]
WHERE (r.IsMemo IS NULL
OR r.IsMemo = 0)
GROUP BY pa.AnalysisBegin
,pa.Id
,pa.ExternalID
,i.AccountNumber
,ac.[Description]
,cl.Name
,ty.Name
,v.[Date]
HAVING SUM(v.amount) <> 0
您是否查看过查询执行计划和/或估计是否存在导致大部分执行时间的特定节点? – Anand