[R] Problem reading PostgreSQL data with RODBC

Phil Spector spector at stat.berkeley.edu
Sun Jan 23 20:45:08 CET 2011

Robert -
   If sqlTables() works, then R already knows the name of your database.
Do you get a different result if you try

>>  seiz.df <- sqlFetch(chnl, 'MAIN')

 					- Phil Spector
 					 Statistical Computing Facility
 					 Department of Statistics
 					 UC Berkeley
 					 spector at stat.berkeley.edu

On Sun, 23 Jan 2011, Robert W. Burn wrote:

> Dear list -
> I am having a problem using RODBC to access records from tables in a PostgreSQL database.
> There is no problem establishing the connection using chnl <- odbcConnect (dsn= ... etc.
> The DSN seems to be properly set up using the PostgreSQL Unicode ODBC driver, and
> sqlTables(chnl) works OK and produces a list of tables in the database (they are all in a schema called 'source').  But
>>  seiz.df <- sqlFetch(chnl, 'source.MAIN')
> fails with the error message
> Error in odbcTableExists(channel, sqtable) :
>  'source.main': table not found on channel
> This occurs even though the table 'MAIN' is listed in schema 'source' in the output of sqlTables(chnl).
> I am using PostgreSQL version 9.0 and the database is installed on a local server (localhost) on a PC running Windows 7 and R2.12.1.
> I have tried version 8.4 of PostgreSQL with the same results.
> The local setup is for development purposes and the final database will eventually be installed on a remote server.
> A further bit of info:  I am able to access another PostgreSQL database on a remote server for a different project with no problems.  However, the server is running version 7.4 of PostgreSQL.
> Any help would be much appreciated.
> Many thanks,
> Bob Burn
> 	[[alternative HTML version deleted]]
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