similar to: Java Exception error while reading large data in R from DB using RJDBC.

Hi All, This might be simple question, I need to retrive data for modelling from the databases. Eveytime date values changes so I countnot fix date value in the code, it is required to pass as parameter. When I pass the date as parameter, it throws error. (ERROR: column "start_dt" does not exist Position: 285) My script is as below, please guide me where am I going wrong? All parameters

Hi List, I am reading table from postgres database into R session using RJDBC, table contains 150 columns and 200000 rows. Sample code is as below, which works fine with smaller tables. ######################################################################## db_driver <- mydir$db_driver db_jar_file <- mydir$db_jar_file db_server <- mydir$db_server db_server_lgn <- mydir$db_server_lgn

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

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

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,

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 <-

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,

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

Hi R-helpers, i am using the following dataset.This dataset is stored in a mysql database. W(x) pH(y) 10 1 15 1 20 4 5 7.5 3 13 9 5 11.5 13.5 3 16 2 1 9.6 1 I am using RJDBC package to read the data from the database into a dataFrame.The commands used are, jdbcDriver<-JDBC(driverClass="com.mysql.jdbc.Driver",

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,

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,

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,

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

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,

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

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

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

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 =

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

When data contains both factor and numeric variables, how to get quartiles for all numeric variables? n <- 100 x1 <- runif(n) x2 <- runif(n) x3 <- x1 + x2 + runif(n)/10 x4 <- x1 + x2 + x3 + runif(n)/10 x5 <- factor(sample(c('a','b','c'),n,replace=TRUE)) x6 <- factor(1*(x5=='a' | x5=='c')) data1 <- cbind(x1,x2,x3,x4,x5,x6) data