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真的很蹩腳，你不能從RStudio無縫複製/粘貼代碼到SQL Server存儲過程，但是，唉，它不會是微軟，否則，對吧？微軟R服務器解析錯誤
基本上，我在解析得到真正奇怪的錯誤：
Error in source(revoScriptConnection) :
revoScriptConnection:116:111: unexpected INCOMPLETE_STRING
116: dtCumulativeResults[,c("State_Name_RAW","City_Name_MDM","County_Name_MDM","State_Name_MDM","City_Address_MDM","City_
下面是實際的代碼行（有幾行之前包括）：
}
}
##save dud results if no geocoding occurred
dtCumulativeResults <- data.table(City_Name_RAW=NA)
dtCumulativeResults[,c("State_Name_RAW","City_Name_MDM","County_Name_MDM","State_Name_MDM","City_Address_MDM","City_Latitude","City_Longitude","index"):=character()]
前面的這個唯一的線是結束for循環和if語句的括號。
此代碼在RStudio中運行得很好。不幸的是，如果我只隔離這幾行，SPROC就會運行。所以它與上面的一些行有關，但我不知道從哪裏開始。有一件事我知道：解析大括號{或}時出現問題。如果我不縮進大括號會引發錯誤。但不總是。
無論如何，我希望有人意識到銀彈是什麼。也許保持一條線上的大括號。等等我在下面添加完整的SPROC，但是再次，這是一些奇怪的格式問題。
USE master
GO
/****** Object: StoredProcedure [dbo].[Rscript_geocodeUSACities] Script Date: 8/8/2017 10:31:15 AM ******/
SET ANSI_NULLS ON
GO
SET QUOTED_IDENTIFIER ON
GO
CREATE PROCEDURE [dbo].[Rscript_geocodeUSACities]
@usrOutputFilePath varchar(150)
,@usrOutputFileName varchar(150)
AS
BEGIN
SET NOCOUNT ON;
DECLARE @rScript nvarchar(max) = N'
#### USER INPUTS ####
usrOutputFile <- "' + @usrOutputFilePath + @usrOutputFileName + '"
#### ESTABLISH ENVIRONMENT ####
library(data.table)
library(foreach)
library(XML)
library(RCurl)
library(RJSONIO)
##turn off scientific notation
options(scipen=999)
#### GEOCODE ####
##assign input data set
dtInputData <- data.table(InputDataSet)
##initialize cumulative results data table
dtCumulativeResults <- dtInputData[0,]
##find out where to start
startindex <- 1
##if a temp file exists - load it up and count the rows
if (file.exists(usrOutputFile)) {
print("Found temp file - resuming from index")
dtCumulativeResults <- fread(usrOutputFile,colClasses="character")
startindex <- ifelse(is.na(max(as.numeric(dtCumulativeResults$index),na.rm=T)),1,max(as.numeric(dtCumulativeResults$index),na.rm=T)+1)
print(startindex)
} else { print("No temp file") }
if (startindex<nrow(dtInputData) | startindex==nrow(dtInputData)) {
for (ii in seq(startindex,nrow(dtInputData))) {
##initialize temporary results data table
dtTempResults <- dtInputData[ii,]
##geocode address
vcSearchInput <- paste0(gsub("[[:punct:]]","",unlist(strsplit(paste(dtInputData$City_Name_RAW[ii],dtInputData$State_Name_RAW[ii],"USA")," "))),collapse="+")
vcSearchURL <- URLencode(paste("http://maps.google.com/maps/api/geocode/json?address=",vcSearchInput,"&sensor=false",sep=""))
vcSearchOutput <- getURL(vcSearchURL)
vcSearchOutput <- fromJSON(vcSearchOutput,simplify=F)
if (vcSearchOutput$status=="OVER_QUERY_LIMIT") {
dtTempResults[1,c("City_Name_MDM","County_Name_MDM","State_Name_MDM","City_Address_MDM","City_Latitude","City_Longitude","index"):=NA]
#save temporary results as we are going along
dtCumulativeResults <- rbind(dtCumulativeResults,dtTempResults[0,],fill=T)
write.csv(dtCumulativeResults,usrOutputFile,row.names=F)
break
}
if (vcSearchOutput$status=="OK" & !(tolower(dtTempResults$City_Name_RAW) %in% tolower(state.name)) & !(tolower(dtTempResults$City_Name_RAW) %in% tolower(state.abb)) & !(tolower(vcSearchOutput$results[[1]]$address_components[[1]]$long_name) %in% tolower(state.name))) {
dtTempResults[1,City_Name_MDM:=vcSearchOutput$results[[1]]$address_components[[1]]$long_name]
if (regexpr("County|Parish|Borough",vcSearchOutput$results[[1]]$address_components[[2]]$long_name)>0) {
dtTempResults[1,County_Name_MDM:=gsub(" County","",vcSearchOutput$results[[1]]$address_components[[2]]$long_name)]
dtTempResults[1,State_Name_MDM:=vcSearchOutput$results[[1]]$address_components[[3]]$long_name]
} else if (regexpr("United States",vcSearchOutput$results[[1]]$address_components[[3]]$long_name)>0) {
dtTempResults[1,County_Name_MDM:=vcSearchOutput$results[[1]]$address_components[[1]]$long_name]
dtTempResults[1,State_Name_MDM:=vcSearchOutput$results[[1]]$address_components[[2]]$long_name]
} else {
dtTempResults[1,County_Name_MDM:=gsub(" County","",vcSearchOutput$results[[1]]$address_components[[3]]$long_name)]
dtTempResults[1,State_Name_MDM:=vcSearchOutput$results[[1]]$address_components[[4]]$long_name]
}
dtTempResults[1,City_Address_MDM:=vcSearchOutput$results[[1]]$formatted_address]
dtTempResults[1,City_Latitude:=vcSearchOutput$results[[1]]$geometry$location$lat]
dtTempResults[1,City_Longitude:=vcSearchOutput$results[[1]]$geometry$location$lng]
dtTempResults[1,index:=ii]
}
##save temporary results as we are going along
dtCumulativeResults <- rbind(dtCumulativeResults,dtTempResults,fill=T)
write.csv(dtCumulativeResults,usrOutputFile,row.names=F)
}
} else {
##save dud results if no geocoding occurred
dtCumulativeResults <- data.table(City_Name_RAW=NA)
dtCumulativeResults[,c("State_Name_RAW","City_Name_MDM","County_Name_MDM","State_Name_MDM","City_Address_MDM","City_Latitude","City_Longitude","index"):=character()]
write.csv(dtCumulativeResults[0,],usrOutputFile,row.names=F)
}
'
EXECUTE sp_execute_external_script
@language = N'R'
, @script = @rScript
,@input_data_1 =N'select distinct [City_Name_RAW]
,[State_Name_RAW]
from [External].[mdm].[dim_USA_Cities_Map]
where Mod_DT is null'
;
END
GO
然後問題出現在這兩條線之前是很難得的，這是我們看不到的。 –
我之前添加了幾行（這只是右括號）。此外，錯誤聲明字符串未終止，但實際的代碼表明它是。 –
例如，如果我在這些行之前將結束括號摺疊到同一行上，現在意外的INCOMPLETE_STRING錯誤稍後會在同一行中出現幾個字符空間 –