similar to: Passing date as parameter while retrieving data from database using dbGetQuery

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

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

I''m trying to assign a parent foreign key value using collection_select from my child "new" form. The problem I''m having is if I do not make a selection, I get the following error instead of the Rails validates_presence_of error: You have a nil object when you didn''t expect it! You might have expected an instance of Array. The error occurred while evaluating

Dear R-helpers, I have split a dataframe into a list with five elements, with the following code: > datalist<-split(data,data$UNIT) I would now like to run some code (below) on each element of the list to extract rows from the list elements; then I would like to rbind the extracted rows into a new dataframe containing all of the extracted rows from all of the list elements. I don't

hello all: I would like to thank those who helped me out of the string problem..but now I got another problem. I used R to query from SQL and got a list of crsp_fundno of G-style mutual funds which is still alive. I use the following codes and got what I want: library(RODBC) channel<-odbcConnect("CRSPFUND") g.crspfundno<-sqlQuery(channel,"select crsp_fundno from Fund_style

Hello all I have been working on my thesis using R. I am a newbie to R and met a problem that bothered me for a while due to my lack of acquaintance of R. I am using R to query from SQL. I got a list of crsp_fundno of G-style mutual funds which is still alive. I use the following codes and got what I want: library(RODBC) channel<-odbcConnect("CRSPFUND")

Hi all, I just noticed (the hard way of course) that when a query returns 0 rows, the columns in the resulting data.frame get dropped as well. See the following example code (where conn is an active connection to an SQLite db): > dbGetQuery(conn, "select 1 as hey, 2 as ho where 1") hey ho 1 1 2 > dbGetQuery(conn, "select 1 as hey, 2 as ho where 0") data frame

RSQLite 0.6-7 has been uploaded to CRAN and should hit a mirror near you in the next few days. This version changes the behavior of the dbGetQuery method to make it more consistent with dbSendQuery. Specifically: 1. dbGetQuery now closes a complete result set as dbSendQuery does. 2. If there is an incomplete result set open, dbGetQuery still opens a new temporary connection, but now issues

RSQLite 0.6-7 has been uploaded to CRAN and should hit a mirror near you in the next few days. This version changes the behavior of the dbGetQuery method to make it more consistent with dbSendQuery. Specifically: 1. dbGetQuery now closes a complete result set as dbSendQuery does. 2. If there is an incomplete result set open, dbGetQuery still opens a new temporary connection, but now issues

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,

Hi Timo, Hi list, I finally got along to test the current dovecot 1.2 with our Kolab Server. And I'm very excited to see all the cool ACL and shared name spaces stuff upstream, thanks a lot Timo! Anyway I just stumbled across a new bug using our metadata-plugin (which in turn uses the dict back end): Making a few annotations requests after another it stops working. dovecot.log sais

Hi, I''m, still relatively new to Puppet, so there might be something I am overlooking. Anyway, my situation is that I can install 1 or multiple tomcat instances on a machine, and in order for me to ensure that they can talk to all databases we run (test environments) I want to copy all DB drivers into each instance. So basically I have a defined type for my tomcat instance, which

Hi, I have been trying to improve the coding of some of my puppet recipes and had some trouble so wrote this: http://blog.wl0.org/2011/05/thoughts-about-extlookup-in-puppet/ Comments on the web seem to indicate that extlookup() solves "all problems" but I don''t really see that and hence have proposed a possible way to keep the data closer together and make the extlookup()

I''m running into an issue trying to do something like the following: class test { file {"test": content => template(''mytemplate1'',''mytemplate2''), } } class test::test2 inherits test { File["test"] { content +> template(''mytemplate3''), } } So, basically I want the inherited class to tack on another