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