Displaying 20 results from an estimated 10000 matches similar to: "connecting RMySQL to and external server"
2005 Jan 29
2
Database Connection Problem with RMySQL package
Folks,
I failed to create a connection to the database under MySQL DBMS in
the R system via RMySQL's method dbConnection(...).
My setup is as follows:
Microsoft Windows XP 5.1.2600
MySQL 4.1.9
R 2.0.1
DBI 0.1-8
RMySQL 0.5-5
Both of DBI and RMySQL packages were downloaded from bell lab:
http://stat.bell-labs.com/RS-DBI/download/index.html
My case in R is as follows:
> library(DBI)
2005 May 02
2
RMySQL query: why result takes so much memory in R ?
Hi
I just started with RMySQL. I have a database with roughly 12 millions
rows/records and 8 columns/fields.
From all 12 millions of records I want to import 3 fields only.
The fields are specified as:id int(11), group char(15), measurement
float(4,2).
Why does this take > 1G RAM? I run R on suse linux, with 1G RAM and with
the code below it even fills the whole 1G of swap. I just
2003 Apr 24
1
RMySQL crash under R 1.7.0, but not 1.6.2
Hi,
I was able to connect to a MySQL database (called "zooscan" and with a table
"serie" under Win XP with R 1.6.2 using:
> library(DBI)
> library(RMySQL)
Warning message:
DLL attempted to change FPU control word from 8001f to 9001f
> drv <- dbDriver("MySQL")
> con <- dbConnect(drv, dbname="zooscan")
> dbExistsTable(con,
2005 Oct 18
1
RMySQL problems
I get the following error trying to connect to a MySQL database:
> library(RMySQL)
Loading required package: DBI
> drv<-dbDriver("MySQL")
> con<-dbConnect(drv, user="hothand", password=xxx,
host="localhost", dbname="hh03");
Error in mysqlNewConnection(drv, ...) : RS-DBI driver: (could not
connect hothand at localhost on dbname
2002 Sep 12
1
DBI / MySQL problems
Hi.
I frequently use RMySQL package to interface R with MySQL databases. I was
having a try with package DBI and I got the following error:
> library(RMySQL)
> library(DBI)
> drv <- dbDriver("MySQL")
> ch <- dbConnect(drv, dbname="mydb", user="myuser", password="mypasswd")
> ibm <- dbGetQuery(ch,"select * from table where
2007 Aug 11
1
Connecting to database on statup
Hello,
Q/ Is it possible to create a DBMS connection automatically on startup of R? (Making sure of course that the db server has been started...)
I am running MySQL on Mac OS X 10.4.2 with R2.4.1.
I have tried to write a function using the RMySQL commands (below) and place them in .First of .RProfile:
drv <- dbDriver("MySQL")
dbcon <- dbConnect(drv, {other parameters present in
2003 Oct 19
1
Running RMySQL with SuSE 8.2?
Since there doesn't appear to be an RMySQL rpm for SuSE 8.*, does
anyone know if the 7.3 version will work with the SuSE 8.2 rpms of R and
DBI?
The package installs without complaint, but when I try to run
con <- dbConnect(dbDriver("MySQL"),dbname="test")
I get the error
Error in dbConnect(dbDriver("MySQL")) : couldn't find function
2009 Nov 05
1
Error when adding package RMySQL (PR#14044)
Full_Name: K?re Jonsson
Version: 2.10
OS: WinXP
Submission from: (NULL) (85.225.178.169)
I made a brand new installation of R 2.10 in two machines and got the same
problem.
Machine 1 is Win XP on metal installation
machine 2 is virtual in VMWare running a hacky OS named Tiny XP in which any
Microsoft windows XP siftware always successfully is installed.
Operation 1. Add package RMySQL from
2003 Apr 24
1
RMySQL
Dear laurent,
> This is what I did to make the connection :
> > drv <- dbDriver("MySQL")
> > con <- dbConnect(drv)
Here's the error.
You should give the database name.
drv <-dbConnect(drv, dbname="dfghdfgsdfgsdfgsdfgsdfgsdfgsdf")
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
> Then I should be able to send requests. But when I
2009 Aug 07
1
RMySQL - overwrite record, not table
Hi, useR-
In RMySQL, how do I overwrite records? (equivalent to "replace" query).
For example, suppose that dat2 is a newer data.frame than dat1.
con <- dbConnect(MySQL())
res <- dbWriteTable(con, "DBname", dat1, row.names=F, append=T, replace=T)
res <- dbWriteTable(con, "DBname", dat2, row.names=F, append=T, replace=T)
This would not update/replace the
2003 May 13
2
RMySQL crashes R
I have justed upgraded R v1.7.0 on Windows NT 4 and have installed the
latest RMySQL (version 0.5-1)and DBI (version 0.1-5) packages.
When I issue the following commands (tactfully adjusted) R just crashes and
disappears, any ideas?
require(RMySQL)
m <- dbDriver("MySQL")
con <- dbConnect(m, dbname="xxx", user="xxx", password="xxx",
2006 Oct 16
3
Install RMySQL with R 2.4.0
I just installed RMySQL 0.5-9 with R 2.4.0 on Windows XP and got the
following error message when trying to run a script with RMySQL:
Error in library(RMySQL) : 'RMySQL' is not a valid package -- installed
< 2.0.0?
Any ideas?
Thanks,
Frank
2012 Nov 21
1
remote connection to an Oracle database - using RODBC - RMySQL..?
Dear users,
I can access an database oracle database using sql developer. This was done by importing an xml file that contains the login details - username, password and specifies that it uses the KERBEROS_AUTHENTICATION.
I'm trying to connect R - so that it can access this database - do sql queries and convert the resulting tables into dataframes.
I am a novice in SQL and database access
2008 Aug 15
1
dbConnect
Hi everybody,
I'm having a problem with connecting to my MySQL database.
Each time I try to connect
library(RMySQL)
m <- dbDriver("MySQL")
con <- dbConnect (m, host="my_host",username="my_username",
password="my_password", dbname="name_of_db")
it says
Fehler in mysqlNewConnection(drv, ...) :
RS-DBI driver: (could not connect
2010 Oct 13
2
Rmysql - dbWritetable
Dear Rusers,
I am trying to feed my database with data from a file.
But since my file (2010101000.txt) there`s no headers I am facing problem
because the
result data.frame is not separated my columns.
How could I set variables names for each columns in *dbWriteTable*? I have
tried the command below but I don`t know how to fill the *field.type*option.
dbWriteTable(con, "b20101010",
2011 Feb 09
2
Insert variable in RMySQL-Statement
Dear list,
I'm working with a MySQL-Table and would like to extract selected ids that are stored in a vector:
Ids <- c(1,2,3)
How do I insert this variable in a for loop like this:
For (a in values) {
Temp <- dbGetQuery(con,
"select * from db
Where id = <ID>";)
}
My problem is to split the select-statement and insert the current id. How can I handle this problem?
2003 May 14
2
abrupt end to R
Dear All,
I haven't seen any further comments about the problem that John Marsland
first noted and that I also have:
> library(DBI)
> library(RMySQL)
Warning message:
DLL attempted to change FPU control word from 8001f to 9001f
> mgr <- dbDriver("MySQL")
> con <- dbConnect(mgr, host="localhost", dbname="marketing")
upon which R dies...
2007 Jul 16
1
S4 coerce
(I am not sure if this is a bug or a request for a more understandable
warning, or possible something obvious I should be posting on r-help.)
I am trying to coerce an new class object to be a DBIConnection and it
does not work the way I think it should:
R version 2.5.1 (2007-06-27) ...
> require("RMySQL") # or require("RSQLite")
Loading required package: RMySQL
Loading
2011 Jan 04
2
RSQLite to input dataframe
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
2011 Feb 25
1
unable to access index for repository
Hi,
I have two questions:
1) Since I switched to Windows 2007 and downloaded the current R version (2.12.1; 2010-12-16) for Windows 7 a month ago, I cannot down load packages through the GUI drop down menu. I get: Warning: unable to access index for repository http://cran.cnr.Berkeley.edu/bin/windows/contrib/2.12
Warning: unable to access index for repository