[R] Joining R Local Dataset with Table from Database

R. Michael Weylandt michael.weylandt at gmail.com
Fri Aug 3 00:50:31 CEST 2012


You'll either need to do it in R or Oracle (I'm not sure you can do it
directly across the ODBC boundary) -- I'd actually think Oracle would
be more performant for this sort of thing.

But anyways, import your data from Oracle into R as a data.frame and
then look at the ?merge command.

Best,
Michael

On Thu, Aug 2, 2012 at 4:58 PM, Madana_Babu <madana_babu at infosys.com> wrote:
> Hi All,
>
> I want to join a table (Dataset) that is created in R with a table that is
> in oracle database. Can some one help me in accomplishing this task in R?
>
> Example Code:
>
> library(RODBC)
> DB_CONNECT <- odbcConnect("DSN_NAME")
>
> TABLE_JOIN <- sqlQuery(DB_CONNECT, "SELECT * FROM DB_TABLE WHERE COL_1 NOT
> IN (SELECT COL_1 FROM DATA_SET_R) ")
>
> Regards,
> Madana
>
>
>
> --
> View this message in context: http://r.789695.n4.nabble.com/Joining-R-Local-Dataset-with-Table-from-Database-tp4638967.html
> Sent from the R help mailing list archive at Nabble.com.
>
> ______________________________________________
> R-help at r-project.org mailing list
> 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.



More information about the R-help mailing list