[R] DCOM - RODBC/RMySQL problem

From: j a <h_joel_allen_phd_at_yahoo.com>
Date: Wed 23 Mar 2005 - 07:52:01 EST


All,
I have a windows application in which data are written to MySQL and R analysis initiated by a VB frontend. After upgrading to DCOM 1.35, the analysis has become excruciatingly slow when processing a simple RODBC query. I am using DCOM 1.35 - I didn't have this difficulty prior to upgrading. I upgraded all other associated software with no change in performance: R 2.1
MySQL 4.1.10
MyODBC 3.51.11

I then installed DBI and RMySQL. I have been working with RMySQL using emacs. When establishing a connection, Rterm crashes with the error "instruction at "0x78001d0b" referenced memory at "0x00000000" the memory could not be read."

Is anyone familiar with these problems? Any help is appreciated.

R.Version()
$platform

[1] "i386-pc-mingw32"
$arch

[1] "i386"
$os

[1] "mingw32"
$system

[1] "i386, mingw32"
$status

[1] ""
$major

[1] "2"
$minor

[1] "0.1"
$year

[1] "2004"
$month

[1] "11"
$day

[1] "15"
$language

[1] "R"

Joel Allen
U.S. EPA



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