similar to: RODBC for importing dbf

Displaying 20 results from an estimated 7000 matches similar to: "RODBC for importing dbf"

2002 May 11
2
RODBC sqlFetch
Hi, Thanks for showing me how to use RODBC and odbcConnect. Now works nicely. The question I've got now is: noms <- list.files(pattern=".DBF") # removing extension names: noms <- sapply(noms, function(x) as.character(strsplit(x,".DBF")) , USE.NAMES=F) for (i in 1:length(noms)) { s <- sqlFetch(bdades, noms[i]) # etc. } But it seems that sqlFetch()
2006 Apr 01
4
-newbie | RODBC import query
Greetings - After 20+ years of using SAS, for a variety of reasons, I'm using [R] for a bunch of things - while I'm getting a pretty good a handling [R] for script programming, and statistical analysis, I'm struggling with 'pulling data into [R]'. For reasons beyond my control, a number of the files I get sent to 'work with' are in Dbase format (*.dbf). For
2002 Jul 18
2
RODBC and Excel Files
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$
2012 Jan 10
3
unir en .dbf luego de aplicar read.xls a varios archivos
Estimados: Tengo un directorio con varios archivos Excel quiero importarlos todos y grabarlos en un Ășnico archivo .dbf. Haciendolo uno por uno lo logro de la siguiente manera (solo tomo 2 archivos): archivos <- list.files(pattern = 'xls') a1 <- read.xls(archivos[1], perl="C:\\strawberry\\perl\\bin\\perl.exe",skip=12,dec=",",header=F,as.is=T) a2 <-
2007 Jul 17
4
[R-sig-DB] RODBC on Oracle DB
essai <- odbcConnect("ORESTE_prod", uid="osis_r", pwd="12miss15" ,case="oracle") > sqlTables(essai)$ORESTE ... 1315 <NA> ORESTE S_PROFESSIONS_OLD TABLE <NA> 1316 <NA> ORESTE S_PROVENANCES TABLE <NA> 1317 <NA> ORESTE
2007 Jul 06
2
RODBC problem
Hello, I use a RODBC connection to a MySQL server on a Debian machine. The call to odbcConnect() seems to be ok, but the result of the first sqlFetch(channel,"t_studie") retrieves this data frame: [1] "[RODBC] ERROR: Could not SQLExecDirect" [2] "42000 1064 [MySQL][ODBC 3.51 Driver][mysqld-5.0.22-Debian_1bpo1-log]You have an error in your SQL syntax; check the manual
2003 Jul 09
2
RODBC and Oracle: error "table does not exist"
Dear r-helpers! I have trouble reading data from an Oracle data base using RODBC Version 1.0-3, R Version 1.7.1, Windows XP, Oracle8 ODBC Driver Version 8.1.6.4.0: > library(RODBC) > channel <- odbcConnect(dsn="PAV32", case="oracle", believeNRows=FALSE) > # ok, this was succesful > x <- sqlTables(channel) > x[37, ] TABLE_CAT TABLE_SCHEM TABLE_NAME
2000 Aug 28
2
Windows / RODBC / Accented characters
A disturbing behaviour of R: an import of data using RODBC library (Windows 98, R 1.1.1) recognizes accented characters in variables names but these can't be manipulated further. See below: > library(Rodbc) > ch<-odbcConnect("Paradox Files") > pollut<-sqlFetch(ch,Pollutio) > pollut Mortalit? Densit? Pollution 1 82 600 110 2 97 960
2002 Aug 28
1
RODBC: sqlFetch and its argument sqtable
Calling function "sqlFetch" in library(RODBC) and specifying a character string as 2nd argument, I get an error I don't understand: library(RODBC) channel <- odbcConnect("mydatabase.mdb", case="msaccess") sqlFetch(channel, "mytable") # this works fine tabname <- "mytable"; sqlFetch(channel, tabname) # this gives an error: # Error in
2011 Jan 23
3
Problem reading PostgreSQL data with RODBC
Dear list - I am having a problem using RODBC to access records from tables in a PostgreSQL database. There is no problem establishing the connection using chnl <- odbcConnect (dsn= ... etc. The DSN seems to be properly set up using the PostgreSQL Unicode ODBC driver, and sqlTables(chnl) works OK and produces a list of tables in the database (they are all in a schema called 'source').
2009 Jan 26
2
R crashes when using the RODBC Package
Hi, I've written some code that fetches data from an Access Database (2003), processes the data, then saves the modified data back into a table in the Access database. It works if I only pass through the code once, but if I put a loop around the code so that I fetch data from a different source table, and then save it again to a different destination table, the code crashes. It is
2002 May 30
2
RODBC & Problems with Sybase Database
Hello, i would like import Data from Sybase DataBase to R-1.5.0 via RODBC. With this i get a connection without problems ! channel <- odbcConnect("ODBCName","LoginName","LoginPass") dataSybase <- sqlFetch(channel,"EPORT_XYZ") ,but when i try this i get a message error ? (Perhaps the _ is a problem, i know that's i.e. not usual to name
2008 Jul 23
2
Using RODBC to use SQL queries
Hello, I am new to the RODBC package, but I have looked over the PDF as well as a few websites that go over the SQL language. I can connect to my database fine using >channel<-odbcConnect("Oracle ODBC") # then am prompted to enter my user id and password After that I'd like to use the odbcQuery function and the SQL statement: SELECT * FROM table_name WHERE SAMPLE_YEA LIKE
2003 Sep 17
1
the name of a variable in a function
Dear collegues, How can I get the name of a variable (and not the variable) within a function ? For instance, in the following function, I'd like to create a variable in the dataframe df with the same name to the variable passed in var: prova <- function( var ) { df <- as.data.frame(matrix(nr=20,nc=0)) df[["here"]] <- seq(min(var), max(var), le= 20) # df } for
2012 Feb 16
1
Reading Text Files with RODBC
I'm thoroughly stumped. I've been playing with RODBC and wanted to see if I could retrieve data from text files using this package as well (for the most part, this is an intellectual exercise, but occasionally I do get data files large enough in CSV format RODBC could be helpful) . I set up a DNS called "Text Files" and then ran the following code in R > library(RODBC)
2005 Feb 07
2
RODBC working in Rgui but not Rterm
Hello Users: I'm using R version 2.0.1, and having problems with RODBC. Everything works fine when I use Rgui, but when I try to use Rterm and issue the commands library(RODBC) con <- odbcConnect("MySQL", "test") I get the following error: Error in sqlQuery(con, str) : first argument is not an open RODBC channel In addition: Warning messages:
2006 Sep 19
1
RODBC Connections closed automatically in background
I am having a problem with RODBC's connections. It appears that my connection to the database is closed by R automatically before I am done with it. Here is my code: foo <- function(dsn) { db <- odbcConnect(dsn) odbcSetAutoCommit(db, FALSE) data <- someDatabaseOperation(db) data2 <- someLongCalculation(data) anotherDatabaseOperation(db, data2) # This often fails b/c the
2004 Nov 11
2
RODBC & POSIX & Daylight Saving blues
Dear All, The recent improvement in RODBC to recognize datetimes in tables has exposed my ongoing confusion. All my data are obtained from a satellite system (Argos) which tags events in the GMT time zone. Daylight saving is ignored. To my way of thinking this means that 1. twelve-o-clock means halfway through the day regardless of season, and 2. the difftime of any two dates where
2012 Nov 26
2
puzzling RODBC error
Dear all, I'm trying to connect to an MSAccess database (ArcGIS personal geodatabase). I keep getting an error about the channel when using sqlQuery(). However, sqlTables() does not complain about the channel and lists all tables in the database. If I try sqlFetch(), then R crashes. I'm happy to hear suggestions on how to solve this. Best regards, Thierry > MDB <-
2011 Dec 04
3
RODBC connect to Excel (64-bit Windows 7)
Hi to all. I have a problem to connect to an Excel database using RODBC. Namely, I am using 64-bit R 2.14.0, under Windows 7 and I tried following: library(RODBC) > channel <- odbcConnectExcel("results.xlsx") Error in odbcConnectExcel("results.xlsx") : odbcConnectExcel is only usable with 32-bit Windows # ok this is clear why it doesn't work > channel