Displaying 20 results from an estimated 300 matches similar to: "Reg : read missing values from database using RJDBC"
2011 Dec 21
1
Reg : Using RJDBC to read UTF-8 characterrs
Hi All,
We are using the following dataset which contains UTF-8 characters and is
stored in a MySQL database. When we use
RODBC and read the data, the characters are read correctly.But when we read
using RJDBC ,the characters are read like ???????????????????????????1
Can you please let me know how we can read the UTF-8 characters as it is
done by RODBC.
ID code Outlook Temperature Humidity
2009 Sep 02
1
Installing rJava RJDBC bad interpreter: Permission denied
Trying to install the above two packages via the "install.packages("package_name")" command and
the "R CMD INSTALL file.tar.gz".
I receive the following error either way "sh: ./configure: /bin/sh: bad interpreter: Permission denied".
I have tried to chmod and chown permissions and also ran dos2unix in hopes that there is a CRLF
in some of the tar.gz files,
2009 Sep 02
1
Installing rJava RJDBC bad interpreter: Permission denied
Trying to install the above two packages via the "install.packages("package_name")" command and
the "R CMD INSTALL file.tar.gz".
I receive the following error either way "sh: ./configure: /bin/sh: bad interpreter: Permission denied".
I have tried to chmod and chown permissions and also ran dos2unix in hopes that there is a CRLF
in some of the tar.gz files,
2009 Aug 26
1
Installing rJava RJDBC bad interpreter: Permission denied
Trying to install the above two packages via the "install.packages("package_name")" command and
the "R CMD INSTALL file.tar.gz".
I receive the following error either way "sh: ./configure: /bin/sh: bad interpreter: Permission denied".
I have tried to chmod and chown permissions and also ran dos2unix in hopes that there is a CRLF
in some of the tar.gz files,
2007 Mar 05
1
RJDBC
I need help.
I'm trying to connect with an Oracle DBMS and MySQL DBMS, I'm using
RJDBC package.
My code is the next:
library('rJava')
library('DBI')
library('RJDBC')
//Mysql
drv <-
JDBC("com.mysql.jdbc.Driver","C:\\Temporal\\mysql-connector-java-3.0.9-stable-bin.jar","'")
conn <- dbConnect(drv,
2011 Jan 07
3
R packages for R 2.11.1
Hi ,
I am using R 2.11.1 . I need to download few packages for the same for
Windows.But in CRAN i see the latest packages for R 2.12.1 only. Can you
help me out with the locations where i can find the packages for R 2.11.1
Windows zip?
Thanks in advance
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2012 Aug 02
1
RJDBC in Ubuntu
Hi,
I'm working with R on Cassandra and need to install RJDBC on my Ubuntu
virtual machine. The traditional commands (install.packages(RJDBC, dep=TRUE)
and library(RJDBC)) don't work: they throw an error that they can't find the
package. I tried installing it using the Rkward GUI, but can't write to any
of the pre-set directories because of permissions issues. When I try running
2007 Mar 05
0
RJDBC
I need help.
I'm trying to connect with an Oracle DBMS and MySQL DBMS, I'm using
RJDBC package.
My code is the next:
library('rJava')
library('DBI')
library('RJDBC')
//Mysql
drv <-
JDBC("com.mysql.jdbc.Driver","C:\\Temporal\\mysql-connector-java-3.0.9-stable-bin.jar","'")
conn <- dbConnect(drv,
2010 Nov 24
1
RJDBC doesn't load Oracle driver?
After installing RJDBC on RedHat Linux and using it successfully with mySQL
JDBC driver i am trying to use it with Oracle database. I use the JDBC
driver that works fine elsewhere (use it in DBVizualizer). However, when i
try to load the driver,
drv<-JDBC("oracle.jdbc.driver.OracleDriver",
"/home/az05625/DBdrivers/ojdbc6.jar", identifier.quote="`")
it gives me
2011 Feb 10
1
rjdbc identifier.quote
Dear all
Backend is Ingres DBMS
I use RJDBC with Ingres JDBC driver
I have this csv file
"","Strategy","par1","m.1997.09.01"
"1","ALF",2,0.1244
which I try to load it RJDBC
require (RJDBC)
drv <- JDBC("com.ingres.jdbc.IngresDriver","/home/ingres/ingresv1/ingres/lib/iijdbc.jar")
conn <- dbConnect(drv,
2007 Sep 27
2
rJava and RJDBC
I am desperate for help.
I am trying to get the RJDBC and rJava .5to work on both my windows xp
and linux Redhat EL5 Server. On both I get a
ava.lang.ClassNotFoundException when calling JDBC().
My example is
require(RJDBC)
classPath='C:\\libraries\\mysql-connector-java-5.1.3-rc\\mysql-connector-java-5.1.3-rc-bin.jar'
driverClass=c("com.mysql.jdbc.Driver")
drv <-
2008 Jun 02
1
RJDBC cant find driver class in JDBC jar file
I would like to set up a Windows XP environment with R and MySQL.
This set-up was recommended by a friend who uses this set up, but I
have been unable to get RJDBC to work. I have installed all of the
software today (June 2 2008), first deleting and then replacing old
versions of software.
The error is as follows:
Error in .jfindClass(as.character(driverClass)[1]) : class not found
This error
2012 Oct 30
2
Java Exception error while reading large data in R from DB using RJDBC.
Dear List,
Java Exception error while reading large data in R from DB using RJDBC.
I am trying to read large data from DB table(Vectorwise), using RJDBC
connection.
I have tested the connection with small size data and was able to fetch DB
tables using same connection(conn as in my code).
Please suggest where am i going wrong or alternate option to solve such
issues while reading large DB
2011 Feb 16
1
Rjdbc dbGetquery execution error
Rjdbc consistently gives me an execution error with postgresql 9.0s JDBC4
driver. It's probably something trivial so am including my code below:
library("RJDBC")
param <- 249
param2 <- 188129
postgres <- JDBC("org.postgresql.Driver",
".m2/repository/postgresql/postgresql/9.0-801.jdbc4/postgresql-9.0-801.jdbc4.jar")
con <- dbConnect(postgres,
2010 Jun 23
1
RJDBC vs RMySQL vs ???
I am running a simple SQL SELECT statement that involvs 50k + data
points using R and the RJDBC interface. I am facing very slow response
times in both the RGUI and the R console. When running this SQL
statement directly in a SQL client I have processing times that are a
lot lot faster (which means that the SQL statement itself is not the
problem).
Did any of you compare RJDBC vs RMySQL or is
2011 Jun 26
1
RJDBC and multiple classpaths
Corect me if this is not the right place to post this.
I have a mdbdriver.jar (to access an MSAccess file) under Linux. I bought
the license from http://www.csv-jdbc.com/ guys. The driver work fine when
tested with DBVisualizer or another JDBC thing.
The problem is that driver needs 3 other more jar files to work. Under R I
have tried this and does not work:
> library(RJDBC)
Loading required
2010 Oct 12
1
append rows to Sybase datatable using RJDBC
Hi,
Does anyone have experience using RJDBC library to write to Sybase
datatable? The jdbc driver I am using is jConnect 6.0. I can
successfully write into a new datatable, but have problem appending rows
to existing one. It either complains "Table *** already exists" or
simply overwrite the existing one. Here is the example.
I am trying to append 'data' to the existing
2007 Dec 14
1
RJDBC to OpenOffice Calc as RODBC to MS Excel
Under Windows, I have used RODBC to connect to Excel spreadsheets as per
the example below:
library(RODBC);
connect = odbcConnectExcel("testdata.xls");
query = "SELECT [data$.ethn], [data$.sex], [data$.age],
[data$.height], [data$.weight],
[label$.label]
FROM [data$], [label$]
WHERE [data$.ethn] = [label$.ethn];"
data =
2011 Oct 19
4
Using SQL "IN" with RJDBC or RMySQL
Hello,
The code below works fine up until I try to use the "IN" statement in
the last line. The proper SQL format is:
SELECT * FROM this_table WHERE this_column IN (1,2,3,4,5)
But, I think I may be getting something like:
SELECT * FROM this_table WHERE this_column IN c(1,2,3,4,5)
Which makes no sense in SQL. I think it may be just a matter of string
massaging, but I'm not
2010 Nov 15
2
Null values in R
Hi R-helpers , can you please let me know the methods in which NULL values
can be handled in R? Are there any generic commands/functions that can be
given in a workspace,so that the NULL values occuring in that workspace (for
any datasets that are loaded , any output that is calculated) , are
considered in the same way?
Thanks in advance.
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