[R] RODBC-Error-sqlSave
Dear R-community, After repeating the sqlSave-command 3 times on a dataframe (of size 13149 rows * 5 columns) to my MS-Access database I get the following error: *Error in sqlSave(channel, eksport_transp_acc_2, transp_acc_scenarier, : unable to append to table transp_acc_scenarier* ** This means that the first 2 savings are completed, but the third-one is somehow not. I have an idea that perhaps it is due to some out-of-memory problem. My PC has 2 CPUs, 1.83 G Hz, 0.99 GB RAM. Have anyone got some idea of what causes and solves the problem? I have tried also with the function *gc()*, but without success. Thanks in advance, Best regards, Johan PS: I use the following code, where the file *eksport_transp_acc_2_rbind.csv* is of size 13149*5: *library(RODBC)* ** *eksport_transp_acc_2 - read.table(file = results/csv/eksport_transp_acc_2_rbind.csv, sep =;, header = T)* ** *sqlSave(channel,eksport_transp_acc_2, transp_acc_scenarier,append = T,fast = F,rownames = F) * -- Johan Lassen In the cities people live in time - in the mountains people live in space [[alternative HTML version deleted]] __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
Re: [R] RODBC-Error-sqlSave
Let us see if it is a R issue. Try this: Read the CSV on Ms Access directly. It is an importation on MsAccess. If you succeed we will check R then. Caveman On Sun, May 16, 2010 at 11:48 AM, Johan Lassen johanlas...@gmail.com wrote: Dear R-community, After repeating the sqlSave-command 3 times on a dataframe (of size 13149 rows * 5 columns) to my MS-Access database I get the following error: *Error in sqlSave(channel, eksport_transp_acc_2, transp_acc_scenarier, : unable to append to table ‘transp_acc_scenarier’* ** This means that the first 2 savings are completed, but the third-one is somehow not. I have an idea that perhaps it is due to some out-of-memory problem. My PC has 2 CPUs, 1.83 G Hz, 0.99 GB RAM. Have anyone got some idea of what causes and solves the problem? I have tried also with the function *gc()*, but without success. Thanks in advance, Best regards, Johan PS: I use the following code, where the file *eksport_transp_acc_2_rbind.csv* is of size 13149*5: *library(RODBC)* ** *eksport_transp_acc_2 - read.table(file = results/csv/eksport_transp_acc_2_rbind.csv, sep =;, header = T)* ** *sqlSave(channel,eksport_transp_acc_2, transp_acc_scenarier,append = T,fast = F,rownames = F) * -- Johan Lassen In the cities people live in time - in the mountains people live in space [[alternative HTML version deleted]] __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code. __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
Re: [R] RODBC-Error-sqlSave
Thank you so much for pointing on this obvious check of the MS Access database! Inspired, I tried to import the csv-file directly into the MS Access database and I encountered an Error saying (freely translated from Danish) : Cannot find search key. The MS Access database is in MS Access-2000 format and I run MS office 2007 on my machine. Hence I tried to make a new MS Access-database in 2002-2003 format and did the same operations in R. With this new set-up for the database I had no problems at all saving the large dataframe from R to the new database. It did the saving of even much larger dataframes quickly. So somehow, setting the database up in 2002-2003 format solved the problem for me. Thank you very much! 2010/5/16 Orvalho Augusto orvaq...@gmail.com Let us see if it is a R issue. Try this: Read the CSV on Ms Access directly. It is an importation on MsAccess. If you succeed we will check R then. Caveman On Sun, May 16, 2010 at 11:48 AM, Johan Lassen johanlas...@gmail.com wrote: Dear R-community, After repeating the sqlSave-command 3 times on a dataframe (of size 13149 rows * 5 columns) to my MS-Access database I get the following error: *Error in sqlSave(channel, eksport_transp_acc_2, transp_acc_scenarier, : unable to append to table transp_acc_scenarier* ** This means that the first 2 savings are completed, but the third-one is somehow not. I have an idea that perhaps it is due to some out-of-memory problem. My PC has 2 CPUs, 1.83 G Hz, 0.99 GB RAM. Have anyone got some idea of what causes and solves the problem? I have tried also with the function *gc()*, but without success. Thanks in advance, Best regards, Johan PS: I use the following code, where the file *eksport_transp_acc_2_rbind.csv* is of size 13149*5: *library(RODBC)* ** *eksport_transp_acc_2 - read.table(file = results/csv/eksport_transp_acc_2_rbind.csv, sep =;, header = T)* ** *sqlSave(channel,eksport_transp_acc_2, transp_acc_scenarier,append = T,fast = F,rownames = F) * -- Johan Lassen In the cities people live in time - in the mountains people live in space [[alternative HTML version deleted]] __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.htmlhttp://www.r-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code. -- Johan Lassen In the cities people live in time - in the mountains people live in space (Budistisk munk). [[alternative HTML version deleted]] __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
