similar to: The R "fork"

Dear Tobias, I finally succeeded in exporting my dataframes from R into Access with this script: library(RODBC) canal <- odbcConnectAccess("D:/Floristique.mdb") sqlSave(channel=canal, dat=flore, tablename="Floristique", rownames=F, safer=F, fast=F, varTypes=c(dates="Date")) odbcClose(canal) My problem in exporting my dataframe "flore" seems to

Hi, I am having trouble to write/create a table, which has a date field. I want to create a stock price table, which has fields of ticker, date, price. First, I created such a table in Microsoft Access with a few rows inputs. Using sqlQuery, I found that the date field was retrieved as POSIXct value. Then I made a data.frame with POSIXct as the data type for dates. However, I received the

Hello! I have no problem reading Excel files (each worksheet in the file is a "table" which can be read - at least in my case). What I would like to do is to read such a table, change it (just the contents, not the format) and write it back, and this I can not do. I am getting the following error messages (3 slightly different attempts): > sqlSave(con, x, tablename =

Hola Javier, si no estoy entendiendo mal, lo q deseo hacer no se trata de configurar los parametros SQL, sino solo de colocar un vector en el argumento VarTypes de la funcion sqlSave. El manual especifica esa opcion, pero no da ningun ejemplo de como usarla. *varTypes an optional named character vector giving the DBMSs datatypes to be used for* *some (or all) of the columns if a table is to be

Buen dia Javier, muchas gracias por tu ayuda y el script compartido. Me va a servir como ayuda para seguir aprendiendo sobre RODBC pero no encuentro una solucion para este problema puntual de poder definir el tipo y ancho de las variables, q segun creo se hace con el argumento varTypes. Si alguien tien algun ejemplo donde haya usado la SqlSave y VarTypes, me sera de gran ayuda. Abrazo a todos

Buen dia compañerxs de R, les traigo una pregunta bastante especifica. En el trabajo me estan requiriendo el uso de SQL, asi q estoy aprendiendo a usarlo desde R, con el paquete RODBC. Mi problema puntual es que al crear una tabla en el servidor SQL a partir de un data frame en R (usando la funcion sqlSave) no puedo definir el tipo de variables que quiero usar en el data frame. Segun entiendo

Hello, I am trying to play with RODBC library and Excel Files. In my file (doubs.xls) there are 2 spreadsheets: > library(RODBC) > connection<-odbcConnect("Excel Files") > sqlTables(connection) TABLE_CAT TABLE_SCHEM TABLE_NAME TABLE_TYPE REMARKS 1 F:\\Th?se\\R\\Doubs NA Faune$ SYSTEM TABLE NA 2 F:\\Th?se\\R\\Doubs NA Milieu$

Dear R users, I've already asked this question yesterday, but, though I had answer for the other ones (and they helped a lot, thanks), for some reason didn't get an answer for this one (I would also appreciate to know why, so that I can improve the quality and clarity of my future questions). Here it is again: I'm trying to use RODBC to export dataframes to xls files. When I run

Dear R users, I've learned today about RODBC package in order to import xls file to dataframes and export the dataframes to xls files. However I have some problems. Please excuse me if these are basic but as I said, I've just begun with this package. Also this email is quite long, but everything is related, so I don't think it would be better to split it. Moreover, there's a

I am using R2.6.0 on “Windows Small Business Server 2003”. I apologize if the answer to my question is available…I have searched but have not found anything that I thought helped me. I have a dataframe that contains ~4.5 million rows and 5 columns. (see memory and df details below). I am trying to save the dataframe to a MS SQL Server database, using the “sqlSave” function. The code

Hi, I noticed that if a column is named "end" in a data frame (table.df below), it leads to errors when trying to sqlSave()'it to a postgresql connection: ---<---------------cut here---------------start-------------->--- con <- odbcConnect("PostgreSQL-DB", uid="user", pwd="password", case="postgresql") R>

I can create a temp table with MySQL and R DBI[1], but I don't see how to do the same with Microsoft SQL 2005 and RODBC. R 2.8.1 creates the table, but then it can never see it. I'm looking to avoid replacing the convenience functions like sqlSave(). [1] https://stat.ethz.ch/pipermail/r-help/2009-March/190033.html > library(RODBC) > channel <-

I am running R version 2.8.1 on Windows XP OS. This works fine. (Data.frame dta is created with records from the DB2 table.): sql <- "select * from storage.testappend_slt order by uut" dta <- sqlQuery(channel,sql) But when I try to append records (from data.frame newdta) to the same DB2 table. I get an error: sqlSave(channel, newdta, tablename = storage.testappend_slt, append

Hi, I've got a problem with RODBC and saving (sqlSave) of a dataframe in Access. R 2.0.1 is running on windows XP. When executing the examples in R help for the "USArrests" data set "sqlSAve" works fine, but running sqlSave() for a dataframe "Adat" > str(Adat) `data.frame': 1202 obs. of 18 variables: containing 18 columns and ca. 1200 rows fails.

I am using sqlSave to save my data into an existing table at MS SQL Server database. Previously my code ran smoothly but all of a sudden it stopped working. Here is my code: sqlSave(con, highVol, "dbo.futuresHighVol", append=TRUE, rownames=FALSE) Error: sqlSave(con, highVol, "jrgchis.dbo.futuresHighVol", append = TRUE, : 42S01 2714 [Microsoft][ODBC SQL Server Driver][SQL

I am using R-2.10.1 binary from CRAN on a WinXP Pro system. I also use SAS v9.2 on the same box. I just started using the SAS ODBC driver that comes with version 9 of SAS. I have been able to set up an ODBC source for SAS datasets using the driver, and then with RODBC I am able to read a sample SAS dataset. > library(RODBC) > ch <- odbcConnect('sasodbc', believeNRows=FALSE)

Hi, Using the fast=F option, sqlSave saves without matching column names. It looks like a bug to me.......... Here's a simple (artificial) example. ----------------------------------------- Create a dataframe and save it to a database table "test" as follows: df <- data.frame(T=1, S=10) sqlSave(channel, df, "test", rownames=F) The table now looks like T S 1 10 If

Hello all! Can someone confirm whether there is a bug or not? I was trying to use sqlUpdate in place of sqlSave as data set I import has duplications. However I get errors while using fast=FALSE argument to safely update/ignore duplicates: Error while executing the query[RODBC] ERROR: Could not SQLExecDirect 'UPDATE "data" SET "logger"=1,

Hello, After a (bad) first try some months ago, I'm trying again to use RODBC package instead of DBI+RMySQL packages to populate MySQL database. The main command is sqlSave(channel, data_df, tablename, append=T, rownames=FALSE, colnames=FALSE, fast=FALSE, varTypes=vartypes) where data_df is the data.frame I want to save and vartypes is obtained following the tip given here

Hi, I am hoping to use the RODBC package to write a dataframe to an Excel .xlsx file. The dataframe contains at least one field with character elements that exceed 255 bytes, which appears to be the cell width limit in Excel. Below is example code and the warning message received: library(RODBC) d <-