[R] RODBC: DNS vs. connection string

From: Olivier Lefevre <lefevrol_at_yahoo.com>
Date: Tue, 04 Mar 2008 22:49:31 +0100

I am able to connect to an SQL Server Express 2005 instance using either a local source or a connection string (i.e., the two forms of odbcConnect) but sqlColumns returns different results. Specifically two string columns are reported as being of type ntext and length 1073741823 in the first case vs. nvarchar and 0 in the latter. Neither seems correct since in the schema these two columns are declared as nvarchar(max). Does that ring a bell with anyone?


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