similar to: RSQLite indexing

How can I change SQLite cache size for R session? SQLite cache size can be set by a pragma, for the duration of the session - or by default. .pragma cache_size .pragma default_cache_size my questions are about RSQLite, version 0.4, running on Windows: - what is the cache size set to when SQLite is invoked from R? - if the page_size is set to 4096 what will be the cache size in bytes

Please let me know where i have to type below thing to RSQLite database get installed.Please let me know the solution.Thanks in advance RSQLite -- Embedding the SQLite engine in R (The RSQLite package includes a recent copy of the SQLite distribution from http://www.sqlite.org.) Installation ------------ There are 3 alternatives for installation: 1. Simple installation: R CMD

I'd like to search for a particular string in an SQLite database using RSQLite, but I'm running into problems constructing the query properly, because of embedded quotes and parens in the string. Is there a function that escapes these for me, or some other fixup that would let me do the queries below? In the real situation I don't have control over what strings get searched for.

Dear all, I am trying to install RSQLite package since I want to install "sqldf", and I used >> install.packages("RSQLite") first, which gave Error message as below: make: *** [RS-DBI.o] Error 1 chmod: cannot access `/usr/lib/R/library/RSQLite/libs/*': No such file or directory ERROR: compilation failed for package 'RSQLite' ** Removing

Hi Folks, I'm new to the linux world and am having some trouble installing the RSQLite package. SQLite is installed, but some dependencies(?) seem to be missing. Can anyone help? > sessionInfo() R version 2.13.0 (2011-04-13) Platform: i686-pc-linux-gnu (32-bit) > install.packages() Installing package(s) into ‘/home/abraham/R/i686-pc-linux-gnu-library/2.13’ (as ‘lib’ is unspecified)

Hi, I'm experimenting with using (R)SQLite to do data management. Here are two little problems that I've encountered: 1. The presence of ',' in string values causes trouble since ',' is also the delimiter used in the SQL statement. 2. A newline '\n' line attached to the last string value of each row. Some examples: > library (RSQLite) Loading required

Happy new year, dear listers, I have a question about Rsqlite. when I fetch the data out of sqlite database, there is something like '\r\n' at the end of last column. Here is the example: Sepal_Length Sepal_Width Petal_Length Petal_Width Species 1 5.1 3.5 1.4 0.2 setosa\r\n 2 4.9 3.0 1.4 0.2 setosa\r\n 3

Hi folks, Ubuntu 10.04 64 bit Where can I find 64 bit RSQLite? It seems not there; RSQLite: SQLite interface for R http://cran.r-project.org/web/packages/RSQLite/index.html TIA B.R. Stephen L

What am I doing wrong, or is the \r that I'm getting in the example below a bug? > a <- (1:10) > b <- (LETTERS[1:10]) > df <- as.data.frame(cbind(a, b)) > > df a b 1 1 A 2 2 B 3 3 C 4 4 D 5 5 E 6 6 F 7 7 G 8 8 H 9 9 I 10 10 J > library(RSQLite) > drv <- dbDriver("SQLite") > con <- dbConnect(drv, dbname = "Test")

What am I doing wrong, or is the \r that I'm getting in the example below a bug? > a <- (1:10) > b <- (LETTERS[1:10]) > df <- as.data.frame(cbind(a, b)) > > df a b 1 1 A 2 2 B 3 3 C 4 4 D 5 5 E 6 6 F 7 7 G 8 8 H 9 9 I 10 10 J > library(RSQLite) > drv <- dbDriver("SQLite") > con <- dbConnect(drv, dbname = "Test")

Estimados Anteriormente usé sin problemas Rsqlite, pero encuentro un error, comparto el código ¿alguno tiene idea sobre que puede llegar a ser? library(RSQLite) con <- dbConnect('SQLite', dbname='/Users/Javier_2/Desktop/SQLiteJavier.db') // o ? en lugar de ? , el error persiste > con <- dbConnect("SQLite",

Dear all, I'm trying to import a csv file into sqlite3 and from there into R. Everything looks fine exepct that R outputs the character values in an odd fashion: they are shown as "\"CHARACTER\"" instead of "CHARACTER", but only if I show the character variable as a vector. Does someone know why this happens? Below is a sample code. The first part is written in

Hello, I am trying to import data from an SQLite database to R. Unfortunately, I seem to get wrong data when I try to import very large numbers. For example: I look at the database via SQLiteStudio(v.1.1.3) and I see the following values: OrderID Day TimeToclose 1 2009-11-25 29467907000 2 2009-11-25 29467907000 3 2009-11-25 29467907000 Now I run this R Code: >

Dear r helpers, At first, I apologize for raising a query which seems to be a stupid interpretation on my part. I am trying to learn SQLite. Following is an example given in the RSQLite.zip file (Page # 4) drv <- dbDriver("SQLite") tfile <- tempfile() con <- dbConnect(drv, dbname = tfile) data(USArrests) dbWriteTable(con, "arrests", USArrests) On the similar

Hi there, When I extract data from SQLite to R, the data types (or modes) of the extracted data seems to be determined by the value of the first row. Please see the following example. When I put the missing values first, the column extracted is of the mode character. > str(dbGetQuery(sql.industry, + "select pya_var from annual_data3 + order by

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

All: I am using RSqlite and want to be able to update individual values in a record, such as with this simple example: library(RSQLite) drv<-dbDriver("SQLite") con<-dbConnect(drv,"test.db") my.data<-data.frame(countries=c("US","UK","Canada","Australia","NewZealand"),vals=c(52,36,74,10,98))

Hi All, I am trying to make write a table in RSQLite. And I get the error mentioned below mat<-as.data.frame(matrix(rnorm(n=244000000),nrow=244000,ncol=1000)) > dbWriteTable(con, "array", mat) [1] FALSE *Warning message: In value[[3]](cond) : RS-DBI driver: (error in statement: too many SQL variables)* Can someone please tell me what is maximum size of a table( max number of

Hi, On a fresh install of R on mac os x 10.6.4 (snow leopard) RSQLite did not install while running biocLite() $ R R version 2.11.1 (2010-05-31) Copyright (C) 2010 The R Foundation for Statistical Computing ISBN 3-900051-07-0 [...] Loading required package: utils BioC_mirror = http://www.bioconductor.org Change using chooseBioCmirror(). [Previously saved workspace restored] >

Hello, I spent a lot of a time on a weird bug, and I just managed to narrow it down. In parallel code (here with parallel::mclappy, but I got it doMC/multicore too), if the library(tcltk) is loaded, R hangs when trying to open a DB connection. I got the same behaviour on two different computers, one dual-core, and one 2 xeon quad-core. Here's the code: library(parallel) library(RSQLite)