Re: [R] R brakes when submitting a query to MySQL

From: Marc Moragues <Marc.Moragues_at_scri.ac.uk>
Date: Tue, 18 Dec 2007 18:35:38 -0000

You are right, it was a mistake copying and pasting the code. There is no error message from R when I run con2. I get a Windows error message saying "R for windows terminal front-end has encountered a problem and need to close".

The error signature is:

AppName: rterm.exe	 AppVer: 2.60.43063.0	 ModName: msvcrt.dll
ModVer: 7.0.2600.2180	 Offset: 000378c0

Marc.

-----Original Message-----
From: r-help-bounces_at_r-project.org [mailto:r-help-bounces_at_r-project.org] On Behalf Of Zembower, Kevin
Sent: 18 December 2007 18:18
To: r-help_at_r-project.org
Subject: Re: [R] R brakes when submitting a query to MySQL

Is it your use of 'con' rather than 'con2' in dbSendQuery? -Kevin

-----Original Message-----
From: r-help-bounces_at_r-project.org [mailto:r-help-bounces_at_r-project.org] On Behalf Of Marc Moragues
Sent: Tuesday, December 18, 2007 1:14 PM To: r-help_at_r-project.org
Subject: [R] R brakes when submitting a query to MySQL

Hello,

I would like to retrieve data stored in MySQL database, so I installed RMySQL package.
I can successfully connect with the my database using the following code

> dvr<-dbDriver("MySQL")
> con2<-dbConnect(dvr,group="exbardiv")
> mysqlDescribeConnection(con2)

<MySQLConnection:(972,0)>
  User: mmorag
  Host: localhost
  Dbname: exbardiv
  Connection type: localhost via TCP/IP
  No resultSet available

I can even see the tables in the database

> dbListTables(con2)

[1] "agoueb" "high_ld" "rescue" "sjlc_info" "sjlc_ld" "temp"

[7] "temp_snp1" "temp_snp2"

However, when I try to query the database, R breakes.

res<-dbSendQuery(con,'select * from sjlc_ld')

Can anyone help me tune up the connection between R and MySQL?

Thank you,
Marc.
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https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code. Received on Tue 18 Dec 2007 - 18:39:02 GMT

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