Question

您好我正在尝试将日期粘贴到R中的SQL查询中。我的代码如下：

Date1<-'20171031'
Date2<-'20170731' 

SQLCommand<- data.frame(sqlQuery(myConn, "SELECT fc.[FactSet Fund Code], fc.FactsetDate,  fc.[Asset Class], fc.[Fund Manager], d.Id AS DeskID, d.[Name] AS DeskName, c.ClosingDate, m.NumericGrossPerformanceTarget, fc.[% Factor Risk], fc.[Predicted Tracking Error], fc.[Portfolio Predicted Beta]    
                             FROM [PortfolioAnalytics].[Data_Factset].[FundChar] fc 
                             LEFT OUTER JOIN Data_Axioma.FactSetAccount fsa ON fc.FactsetAccountCode = REPLACE(fsa.Code, '_', '') 
                             LEFT OUTER JOIN dbo.Portfolio p ON fsa.PortfolioId = p.Id 
                             LEFT OUTER JOIN dbo.Mandate m ON p.UnderlyingId = m.id 
                             INNER JOIN dbo.Mandate c ON p.UnderlyingId = c.id 
                             LEFT OUTER JOIN dbo.Desk d ON m.DeskId = d.Id
                             WHERE IncludesCash = 1 
                             AND [FactSet Fund Code] IS NOT NULL 
                             AND [Fund Manager] IS NOT NULL 
                             AND [Asset Class] IS NOT NULL 
                             AND FactsetDate IN ("Date1, Date2")
                             ORDER BY [Predicted Tracking Error] DESC"))

我收到意外的符号错误。

Answer 1

使用字符串操作

执行此操作

Date1 <- "20171031"
Date2 <- "20170731" 

query <- sprintf("select * from yourtable
                  where column between '%s' and '%s'", Date1, Date2)

通过R将日期输入到SQL查询

1 个答案: